/* ============================================================
   YOUCANIC AI Mechanic v2.0.0 — Complete Stylesheet
   Brand: Red #D81B1B | Dark #1a1a1a | White #fff
============================================================ */

:root {
  --yc-red:     #D81B1B;
  --yc-red-dk:  #b51616;
  --yc-dark:    #1a1a1a;
  --yc-mid:     #444;
  --yc-muted:   #777;
  --yc-border:  #e2e2e2;
  --yc-bg:      #f8f8f8;
  --yc-white:   #fff;
  --yc-shadow:  0 2px 16px rgba(0,0,0,.08);
  --yc-radius:  10px;
  --yc-rsm:     6px;
  --yc-font:    -apple-system,'Helvetica Neue',Arial,sans-serif;
}

/* -- Wrapper ------------------------------------------------ */
.yc-aim-wrap {
  font-family: var(--yc-font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--yc-dark);
  background: var(--yc-white);
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-radius);
  box-shadow: var(--yc-shadow);
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto 2em;
}

/* -- Header ------------------------------------------------- */
.yc-aim-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--yc-dark);
  color: var(--yc-white);
}
.yc-aim-dot {
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--yc-red);
  flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(216,27,27,.3);
}
.yc-aim-title   { font-size: 14px; font-weight: 700; letter-spacing: .02em; }
.yc-aim-subtitle { font-size: 12px; color: #aaa; margin-top: 1px; }

/* Free query badge in header */
.yc-aim-query-badge {
  margin-left: auto;
  font-size: 11px;
  font-weight: 700;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 20px;
  padding: 3px 10px;
  color: #fff;
  white-space: nowrap;
}

/* -- Form bar ---------------------------------------------- */
.yc-aim-form-bar {
  padding: 14px 20px 12px;
  background: var(--yc-bg);
  border-bottom: 1px solid var(--yc-border);
}
.yc-aim-form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.yc-aim-form-row + .yc-aim-form-row { margin-top: 8px; }

/* -- Select & Input ---------------------------------------- */
.yc-aim-select,
.yc-aim-input {
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  background: var(--yc-white);
  font-size: 14px;
  font-family: var(--yc-font);
  color: var(--yc-dark);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  box-sizing: border-box;
}
.yc-aim-select:focus, .yc-aim-input:focus {
  border-color: var(--yc-red);
  box-shadow: 0 0 0 3px rgba(216,27,27,.1);
}
.yc-aim-year  { width: 96px; }
.yc-aim-make  { min-width: 155px; }
.yc-aim-model { flex: 1; min-width: 130px; }
.yc-aim-code  { max-width: 155px; font-weight: 700; letter-spacing: .04em; }
.yc-aim-desc  { flex: 1; min-width: 160px; }
.yc-aim-lang  { max-width: 120px; }

/* -- Buttons ----------------------------------------------- */
.yc-aim-btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 38px; padding: 0 18px;
  border: none; border-radius: var(--yc-rsm);
  font-size: 14px; font-weight: 600; font-family: var(--yc-font);
  cursor: pointer; white-space: nowrap;
  background: var(--yc-red); color: var(--yc-white);
  transition: background .15s, transform .1s;
}
.yc-aim-btn:hover  { background: var(--yc-red-dk); }
.yc-aim-btn:active { transform: translateY(1px); }
.yc-aim-btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.yc-aim-btn-outline {
  background: transparent; color: var(--yc-dark);
  border: 1px solid var(--yc-border);
}
.yc-aim-btn-outline:hover { background: var(--yc-bg); border-color: #bbb; }
.yc-aim-btn-upgrade {
  background: var(--yc-red); color: #fff;
  font-size: 15px; height: 44px; padding: 0 24px; border-radius: 8px;
}

/* -- Chips -------------------------------------------------- */
.yc-aim-chips {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--yc-border);
}
.yc-aim-chip {
  font-size: 12px; background: #f0f0f0;
  border: 1px solid #ddd; border-radius: 20px;
  padding: 3px 10px; color: var(--yc-mid);
}
.yc-aim-chip strong { color: var(--yc-dark); margin-right: 4px; }

/* -- Mode bar (Technical / Plain English + Print) ---------- */
.yc-aim-mode-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px 0;
}
.yc-aim-mode-btns { display: flex; gap: 4px; }
.yc-aim-mode-btn {
  border: 1px solid var(--yc-border); background: transparent;
  font-size: 13px; font-weight: 600; padding: 5px 14px;
  border-radius: 20px; cursor: pointer; color: var(--yc-muted);
  font-family: var(--yc-font); transition: all .15s;
}
.yc-aim-mode-btn.active { background: var(--yc-dark); color: #fff; border-color: var(--yc-dark); }
.yc-aim-print-btn {
  display: inline-flex; align-items: center; gap: 5px;
  background: none; border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm); padding: 5px 12px;
  font-size: 12px; font-weight: 600; cursor: pointer;
  color: var(--yc-muted); font-family: var(--yc-font);
  transition: all .15s;
}
.yc-aim-print-btn:hover { border-color: #aaa; color: var(--yc-dark); }

/* -- Scroll-anchor tabs ------------------------------------ */
.yc-aim-tabs {
  display: flex; overflow-x: auto; gap: 0;
  border-bottom: 2px solid var(--yc-border);
  padding: 0 20px;
  scrollbar-width: none;
}
.yc-aim-tabs::-webkit-scrollbar { display: none; }
.yc-aim-tab {
  flex-shrink: 0; padding: 10px 16px;
  background: none; border: none; border-bottom: 2px solid transparent;
  margin-bottom: -2px; font-size: 13px; font-weight: 600;
  cursor: pointer; color: var(--yc-muted); font-family: var(--yc-font);
  transition: color .15s, border-color .15s;
  white-space: nowrap;
}
.yc-aim-tab:hover { color: var(--yc-dark); }
.yc-aim-tab.active { color: var(--yc-red); border-bottom-color: var(--yc-red); }

/* -- Loading skeleton -------------------------------------- */
.yc-aim-loading { padding: 24px 20px; display: flex; flex-direction: column; gap: 10px; }
.yc-aim-skel-line {
  height: 14px; border-radius: 4px;
  background: linear-gradient(90deg,#eee 25%,#f5f5f5 50%,#eee 75%);
  background-size: 400% 100%;
  animation: yc-skel 1.4s ease infinite;
}
@keyframes yc-skel { 0%{background-position:100% 50%} 100%{background-position:0% 50%} }

/* -- Status ------------------------------------------------ */
.yc-aim-status { padding: 12px 20px; font-size: 14px; color: var(--yc-muted); }
.yc-aim-status.error {
  color: var(--yc-red); background: #fff5f5;
  border-left: 3px solid var(--yc-red); padding: 14px 20px;
}

/* -- Response --------------------------------------------- */
.yc-aim-response { padding: 0 20px 24px; }

/* Severity + Difficulty row */
.yc-aim-hero-row {
  display: flex; align-items: flex-start; gap: 16px;
  flex-wrap: wrap; padding: 16px 0 8px;
}
.yc-aim-severity {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; padding: 4px 12px; border-radius: 20px;
}
.yc-aim-severity.low      { background:#dcfce7;color:#15803d }
.yc-aim-severity.medium   { background:#fef9c3;color:#854d0e }
.yc-aim-severity.high     { background:#ffedd5;color:#9a3412 }
.yc-aim-severity.critical { background:#fee2e2;color:#991b1b;
  animation: yc-pulse .8s ease infinite alternate; }
@keyframes yc-pulse { from{opacity:1} to{opacity:.6} }

/* Repair difficulty */
.yc-aim-difficulty { display: flex; align-items: center; gap: 8px; }
.yc-aim-diff-dots  { display: flex; gap: 4px; }
.yc-aim-diff-dot {
  width: 14px; height: 14px; border-radius: 3px;
  background: #e5e7eb; border: 1px solid #d1d5db;
  transition: background .2s;
}
.yc-aim-diff-dot.filled { border-color: transparent; }
.yc-aim-diff-label { font-size: 13px; font-weight: 600; }

/* Time + Cost row */
.yc-aim-meta-row {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 10px;
}
.yc-aim-meta-badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 13px; font-weight: 600; padding: 5px 12px;
  border-radius: 6px;
}
.yc-aim-meta-badge.time { background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe; }
.yc-aim-meta-badge.cost { background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0; }

/* TSB Notice */
.yc-aim-tsb {
  background: #fffbeb; border: 1px solid #fde68a;
  border-left: 4px solid #f59e0b;
  border-radius: 0 6px 6px 0;
  padding: 10px 14px; margin: 10px 0;
  font-size: 13px; color: #78350f; line-height: 1.55;
}
.yc-aim-tsb::before { content: '⚠️  TSB/Recall Notice: '; font-weight: 700; }

/* Plain / Technical toggle */
.yc-aim-plain-block {
  background: #f0f7ff; border-left: 3px solid #2563eb;
  border-radius: 0 6px 6px 0; padding: 12px 16px;
  margin: 10px 0; font-size: 15px; color: #1e3a5f; line-height: 1.65;
}
.yc-aim-summary-block { padding: 6px 0 4px; font-size: 15px; color: var(--yc-mid); line-height: 1.7; }
.mode-simple    .yc-aim-summary-block { display:none; }
.mode-technical .yc-aim-plain-block   { display:none; }

/* Sections */
.yc-aim-section    { margin-top: 22px; scroll-margin-top: 80px; }
.yc-aim-sec-title  {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .07em; color: var(--yc-muted); margin-bottom: 10px;
  display: flex; align-items: center; gap: 8px;
}
.yc-aim-sec-title::before {
  content: ''; width: 3px; height: 13px;
  background: var(--yc-red); border-radius: 2px; display: inline-block;
}

/* Causes */
.yc-aim-causes-list { display: flex; flex-direction: column; gap: 8px; }
.yc-aim-cause-card  { border: 1px solid var(--yc-border); border-radius: var(--yc-rsm); overflow: hidden; }
.yc-aim-cause-head  {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px 6px; cursor: pointer;
}
.yc-aim-cause-head:hover { background: var(--yc-bg); }
.yc-aim-cause-label { font-weight: 600; font-size: 14px; flex: 1; }
.yc-aim-cause-pct   { font-size: 13px; font-weight: 700; color: var(--yc-muted); white-space: nowrap; }
.yc-aim-prob-wrap   { height: 5px; background: #eee; border-radius: 3px; margin: 0 14px 4px; overflow: hidden; }
.yc-aim-prob-bar    { height: 100%; border-radius: 3px; width: 0; transition: width .7s cubic-bezier(.4,0,.2,1); }
.yc-aim-prob-high   { background: var(--yc-red); }
.yc-aim-prob-medium { background: #f59e0b; }
.yc-aim-prob-low    { background: #16a34a; }
.yc-aim-cause-body  { max-height:0; overflow:hidden; transition:max-height .3s ease, padding .3s ease; }
.yc-aim-cause-body.open { max-height:300px; padding:0 14px 12px; }
.yc-aim-cause-desc  { font-size:14px; color:var(--yc-mid); margin-bottom:8px; }
.yc-aim-cause-check {
  font-size:13px; background:#fffbeb; border:1px solid #fde68a;
  border-radius:5px; padding:8px 12px; color:#78350f;
}
.yc-aim-cause-check::before { content:'🔍 What to check: '; font-weight:700; }
.yc-aim-chevron { font-size:10px; color:var(--yc-muted); transition:transform .2s; margin-left:4px; }
.yc-aim-cause-head.open .yc-aim-chevron { transform:rotate(90deg); }

/* Steps */
.yc-aim-steps-list  { display:flex; flex-direction:column; gap:8px; counter-reset:step; }
.yc-aim-step-card   { border:1px solid var(--yc-border); border-radius:var(--yc-rsm); overflow:hidden; }
.yc-aim-step-head   {
  display:flex; align-items:center; gap:12px;
  padding:11px 14px; cursor:pointer; background:var(--yc-bg);
  user-select:none;
}
.yc-aim-step-head:hover { background:#efefef; }
.yc-aim-step-num    {
  width:26px; height:26px; border-radius:50%; background:var(--yc-dark);
  color:#fff; font-size:12px; font-weight:700; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
}
.yc-aim-step-title  { font-weight:600; font-size:14px; flex:1; }
.yc-aim-step-body   { max-height:0; overflow:hidden; transition:max-height .3s ease, padding .3s ease; }
.yc-aim-step-body.open { max-height:500px; padding:12px 14px 14px; }
.yc-aim-step-head.open .yc-aim-chevron { transform:rotate(90deg); }
.yc-aim-step-detail { font-size:14px; color:var(--yc-mid); line-height:1.65; margin-bottom:10px; }
.yc-aim-tool-chips  { display:flex; flex-wrap:wrap; gap:5px; }
.yc-aim-tool-chip   {
  font-size:12px; background:#f3f4f6; border:1px solid #e5e7eb;
  border-radius:4px; padding:2px 8px; color:var(--yc-mid);
}

/* Parts needed */
.yc-aim-parts-grid  { display:flex; flex-wrap:wrap; gap:8px; }
.yc-aim-part-card   {
  display:flex; align-items:center; gap:8px;
  background:#fff; border:1px solid var(--yc-border);
  border-radius:var(--yc-rsm); padding:8px 12px;
  font-size:13px; font-weight:600; color:var(--yc-dark);
  text-decoration:none; transition:border-color .15s, box-shadow .15s;
}
.yc-aim-part-card:hover {
  border-color: var(--yc-red); color: var(--yc-red);
  box-shadow: 0 2px 8px rgba(216,27,27,.12); text-decoration:none;
}
.yc-aim-part-amazon { font-size:11px; color:var(--yc-muted); margin-top:1px; }

/* Generic list */
.yc-aim-list     { list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:5px; }
.yc-aim-list li  { font-size:14px; color:var(--yc-mid); padding-left:16px; position:relative; }
.yc-aim-list li::before { content:'•'; position:absolute; left:4px; color:var(--yc-red); font-weight:700; }

/* Related codes */
.yc-aim-related-list { display:flex; flex-wrap:wrap; gap:8px; }
.yc-aim-related-chip {
  display:inline-flex; align-items:center; gap:6px;
  background:#fff; border:1px solid var(--yc-border);
  border-radius:var(--yc-rsm); padding:6px 12px;
  font-size:13px; cursor:pointer; transition:all .15s;
  font-family:var(--yc-font);
}
.yc-aim-related-chip:hover {
  border-color:var(--yc-red); color:var(--yc-red); background:#fff5f5;
}
.yc-aim-related-code  { font-weight:700; font-family:monospace; font-size:14px; }
.yc-aim-related-why   { font-size:12px; color:var(--yc-muted); }

/* Scanner pitch */
.yc-aim-scanner-pitch {
  margin-top:20px; background:linear-gradient(135deg,#1a1a1a 0%,#2d2d2d 100%);
  border-radius:var(--yc-rsm); padding:16px 18px;
  display:flex; align-items:flex-start; gap:14px;
}
.yc-aim-pitch-icon    { font-size:24px; flex-shrink:0; margin-top:2px; }
.yc-aim-pitch-content { flex:1; }
.yc-aim-pitch-title   { font-size:14px; font-weight:700; color:#fff; margin-bottom:5px; }
.yc-aim-pitch-ctx     { font-size:13px; color:#bbb; line-height:1.5; margin-bottom:12px; }
.yc-aim-pitch-cta     {
  display:inline-block; background:var(--yc-red); color:#fff;
  font-size:13px; font-weight:700; padding:8px 18px; border-radius:5px;
  text-decoration:none; transition:background .15s;
}
.yc-aim-pitch-cta:hover { background:var(--yc-red-dk); color:#fff; }

/* Action bar */
.yc-aim-action-bar {
  display:flex; gap:8px; padding:14px 20px 18px;
  border-top:1px solid var(--yc-border); background:var(--yc-bg);
}

/* ============================================================
   CHAT WIDGET
============================================================ */
.yc-aim-chat-ctx    { padding:14px 20px; background:var(--yc-bg); border-bottom:1px solid var(--yc-border); }
.yc-aim-ctx-label   { font-size:13px; font-weight:600; color:var(--yc-dark); margin-bottom:8px; }
.yc-aim-ctx-note    { font-weight:400; color:var(--yc-muted); }
.yc-aim-vehicle-badge {
  margin-top:8px; display:inline-flex; align-items:center; gap:6px;
  background:var(--yc-dark); color:#fff; font-size:12px; font-weight:600;
  padding:4px 12px; border-radius:20px;
}
.yc-aim-vehicle-badge::before { content:'🚗'; }

.yc-aim-messages {
  min-height:200px; max-height:520px; overflow-y:auto;
  padding:16px 20px; display:flex; flex-direction:column; gap:16px;
  scroll-behavior:smooth;
}
.yc-aim-messages::-webkit-scrollbar { width:5px; }
.yc-aim-messages::-webkit-scrollbar-thumb { background:#ddd; border-radius:3px; }

.yc-aim-welcome       { display:flex; align-items:flex-start; gap:12px; }
.yc-aim-ai-avatar     {
  width:36px; height:36px; background:var(--yc-dark); border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:18px; flex-shrink:0;
}
.yc-aim-welcome-text  {
  background:var(--yc-bg); border:1px solid var(--yc-border);
  border-radius:0 10px 10px 10px; padding:12px 14px;
  font-size:14px; color:var(--yc-mid); line-height:1.6; max-width:480px;
}
.yc-aim-msg-row          { display:flex; gap:10px; align-items:flex-start; }
.yc-aim-msg-row.user     { flex-direction:row-reverse; }
.yc-aim-msg-avatar       {
  width:32px; height:32px; border-radius:50%; background:var(--yc-dark);
  display:flex; align-items:center; justify-content:center;
  font-size:15px; flex-shrink:0; color:#fff;
}
.yc-aim-msg-row.user .yc-aim-msg-avatar { background:var(--yc-red); }
.yc-aim-bubble           {
  max-width:82%; padding:10px 14px;
  border-radius:4px 10px 10px 10px; font-size:14px; line-height:1.6;
  background:var(--yc-bg); border:1px solid var(--yc-border); color:var(--yc-mid);
}
.yc-aim-msg-row.user .yc-aim-bubble {
  background:var(--yc-dark); color:#fff; border-color:transparent;
  border-radius:10px 4px 10px 10px;
}
.yc-aim-chat-sections    { margin-top:10px; display:flex; flex-direction:column; gap:8px; }
.yc-aim-chat-sec-title   { font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:.05em; color:var(--yc-muted); margin-bottom:3px; }
.yc-aim-chat-pitch       { margin-top:10px; background:var(--yc-dark); border-radius:8px; padding:12px 14px; }
.yc-aim-chat-pitch-ctx   { font-size:13px; color:#bbb; margin-bottom:8px; line-height:1.5; }
.yc-aim-chat-pitch-cta   {
  display:inline-block; background:var(--yc-red); color:#fff;
  font-size:12px; font-weight:700; padding:6px 14px; border-radius:4px; text-decoration:none;
}
.yc-aim-chat-pitch-cta:hover { background:var(--yc-red-dk); color:#fff; }

/* Typing indicator */
.yc-aim-typing-row { display:flex; gap:10px; align-items:center; }
.yc-aim-typing     { display:flex; gap:4px; padding:10px 14px; background:var(--yc-bg); border:1px solid var(--yc-border); border-radius:4px 10px 10px 10px; }
.yc-aim-typing span { width:7px; height:7px; border-radius:50%; background:#ccc; animation:yc-bounce .7s ease infinite; }
.yc-aim-typing span:nth-child(2) { animation-delay:.12s; }
.yc-aim-typing span:nth-child(3) { animation-delay:.24s; }
@keyframes yc-bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-4px);background:#aaa} }

/* Follow-up chips */
.yc-aim-follow-chips { display:flex; flex-wrap:wrap; gap:6px; padding:6px 20px 10px; }
.yc-aim-follow-chip  {
  font-size:12px; background:var(--yc-white); border:1px solid var(--yc-border);
  border-radius:20px; padding:5px 12px; cursor:pointer; color:var(--yc-mid);
  font-family:var(--yc-font); transition:all .15s;
}
.yc-aim-follow-chip:hover { border-color:var(--yc-red); color:var(--yc-red); background:#fff5f5; }

/* Input bar */
.yc-aim-input-bar {
  display:flex; gap:8px; padding:12px 20px 16px;
  border-top:1px solid var(--yc-border); background:var(--yc-bg); align-items:flex-end;
}
.yc-aim-chat-input {
  flex:1; resize:none; border:1px solid var(--yc-border); border-radius:var(--yc-rsm);
  padding:9px 12px; font-size:14px; font-family:var(--yc-font); color:var(--yc-dark);
  outline:none; line-height:1.5; transition:border-color .15s; box-sizing:border-box;
}
.yc-aim-chat-input:focus { border-color:var(--yc-red); box-shadow:0 0 0 3px rgba(216,27,27,.1); }
.yc-aim-send {
  width:42px; height:42px; padding:0; border-radius:8px; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
}
.yc-aim-send:disabled { opacity:.4; cursor:not-allowed; }

/* Upgrade wall */
.yc-aim-upgrade-wall {
  display:flex; flex-direction:column; align-items:center; gap:12px;
  padding:28px 20px; border-top:1px solid var(--yc-border);
  background:linear-gradient(180deg,var(--yc-bg) 0%,#fff 100%); text-align:center;
}
.yc-aim-upgrade-icon { font-size:32px; }
.yc-aim-upgrade-msg  { font-size:15px; color:var(--yc-mid); line-height:1.55; }
.yc-aim-upgrade-msg span { font-size:13px; color:var(--yc-muted); display:block; margin-top:4px; }

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width:600px) {
  .yc-aim-form-row { flex-direction:column; }
  .yc-aim-year,.yc-aim-make,.yc-aim-model,.yc-aim-code,.yc-aim-desc,
  .yc-aim-lang,.yc-aim-btn { width:100%; max-width:100%; }
  .yc-aim-bubble { max-width:95%; }
  .yc-aim-scanner-pitch { flex-direction:column; gap:8px; }
  .yc-aim-mode-bar { flex-direction:column; align-items:flex-start; gap:8px; }
  .yc-aim-hero-row { flex-direction:column; gap:10px; }
}

/* ============================================================
   PRINT STYLES
============================================================ */
@media print {
  .yc-aim-form-bar, .yc-aim-chips, .yc-aim-mode-bar,
  .yc-aim-tabs, .yc-aim-action-bar, .yc-aim-print-btn,
  .yc-aim-pitch-cta, .yc-aim-input-bar,
  .yc-aim-follow-chips { display:none !important; }

  .yc-aim-wrap { box-shadow:none; border:none; max-width:100%; }
  .yc-aim-header { background:#1a1a1a !important; -webkit-print-color-adjust:exact; color-adjust:exact; }

  /* Force-expand all collapsed sections */
  .yc-aim-cause-body,
  .yc-aim-step-body { max-height:none !important; padding:0 14px 12px !important; }

  .yc-aim-scanner-pitch { background:#1a1a1a !important; -webkit-print-color-adjust:exact; color-adjust:exact; }

  .yc-aim-response::after {
    content: 'Generated by YOUCANIC.com AI Mechanic';
    display:block; margin-top:24px; padding-top:12px;
    border-top:1px solid #ccc; font-size:11px; color:#888;
    text-align:center;
  }
}

/* ============================================================
   v2.1 ADDITIONS — Feature 1: Mode Toggle (Code vs Symptom)
============================================================ */
.yc-aim-mode-toggle {
  display: flex;
  gap: 0;
  margin-bottom: 12px;
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  overflow: hidden;
  width: fit-content;
}
.yc-aim-toggle-btn {
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--yc-font);
  background: var(--yc-white);
  border: none;
  border-right: 1px solid var(--yc-border);
  cursor: pointer;
  color: var(--yc-muted);
  transition: background .15s, color .15s;
}
.yc-aim-toggle-btn:last-child { border-right: none; }
.yc-aim-toggle-btn.active {
  background: var(--yc-dark);
  color: var(--yc-white);
}
.yc-aim-toggle-btn:hover:not(.active) { background: var(--yc-bg); color: var(--yc-dark); }

/* Symptom textarea submit row */
.yc-aim-fields-symptom { align-items: flex-start; }
.yc-aim-fields-symptom .yc-aim-btn { align-self: flex-end; }

/* Suspected codes (symptom mode results) */
.yc-aim-susp-intro {
  font-size: 13px;
  color: var(--yc-muted);
  margin: 4px 0 12px;
}
.yc-aim-suspected-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.yc-aim-suspected-code {
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  padding: 12px 14px;
  transition: border-color .15s;
}
.yc-aim-suspected-code:hover { border-color: #bbb; }
.yc-aim-susp-top {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}
.yc-aim-susp-code {
  font-size: 16px;
  font-weight: 700;
  font-family: monospace;
  color: var(--yc-dark);
}
.yc-aim-susp-name  { font-size: 14px; font-weight: 600; color: var(--yc-mid); flex: 1; }
.yc-aim-susp-pct   { font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 20px; }
.yc-aim-prob-high .yc-aim-susp-pct,
.yc-aim-susp-pct.yc-aim-prob-high   { background: #fee2e2; color: #991b1b; }
.yc-aim-susp-pct.yc-aim-prob-medium { background: #fef9c3; color: #854d0e; }
.yc-aim-susp-pct.yc-aim-prob-low    { background: #dcfce7; color: #15803d; }
.yc-aim-susp-reason {
  font-size: 13px;
  color: var(--yc-muted);
  line-height: 1.55;
  margin-bottom: 10px;
}
.yc-aim-susp-diagnose {
  margin-top: 10px;
  height: 34px;
  font-size: 13px;
  padding: 0 14px;
}

/* ============================================================
   v2.1 ADDITIONS — Feature 2: Progress Tracker
============================================================ */
.yc-aim-progress-note {
  font-size: 12px;
  font-weight: 400;
  color: var(--yc-muted);
  margin-left: 8px;
  display: inline;
}
.yc-aim-progress-done {
  color: #16a34a;
  font-weight: 600;
}

/* Ruled-out button inside cause body */
.yc-aim-ruled-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 10px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--yc-font);
  padding: 5px 12px;
  border-radius: 4px;
  border: 1px solid var(--yc-border);
  background: var(--yc-white);
  cursor: pointer;
  color: var(--yc-muted);
  transition: all .15s;
}
.yc-aim-ruled-btn:hover {
  border-color: #16a34a;
  color: #15803d;
  background: #f0fdf4;
}
.yc-aim-ruled-btn.is-ruled {
  border-color: #d1d5db;
  color: var(--yc-muted);
  background: #f9fafb;
}
.yc-aim-ruled-btn.is-ruled:hover {
  border-color: var(--yc-red);
  color: var(--yc-red);
  background: #fff5f5;
}

/* Ruled-out cause card state */
.yc-aim-cause-card.ruled-out {
  opacity: 0.55;
  order: 99;
}
.yc-aim-cause-card.ruled-out .yc-aim-cause-label {
  text-decoration: line-through;
  color: var(--yc-muted);
}
.yc-aim-ruled-badge {
  font-size: 11px;
  font-weight: 700;
  background: #f0fdf4;
  color: #16a34a;
  border: 1px solid #bbf7d0;
  border-radius: 20px;
  padding: 2px 8px;
}
.yc-aim-causes-list { display: flex; flex-direction: column; gap: 8px; }
.yc-aim-prob-muted { background: #d1d5db !important; }

/* ============================================================
   v2.1 ADDITIONS — Feature 6: Confidence Banner
============================================================ */
.yc-aim-banner-wrap {
  padding: 14px 20px 0;
}
.yc-aim-confidence-banner {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex-wrap: wrap;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-left: 4px solid #f59e0b;
  border-radius: 0 var(--yc-rsm) var(--yc-rsm) 0;
  padding: 12px 14px;
  margin-bottom: 6px;
}
.yc-aim-conf-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
.yc-aim-conf-msg  {
  font-size: 13px;
  color: #78350f;
  line-height: 1.55;
  flex: 1;
  min-width: 200px;
}
.yc-aim-conf-fields {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  width: 100%;
  margin-top: 8px;
}
.yc-aim-conf-refine {
  height: 32px !important;
  font-size: 13px !important;
  padding: 0 14px !important;
  background: #f59e0b !important;
}
.yc-aim-conf-refine:hover { background: #d97706 !important; }

@media print {
  .yc-aim-confidence-banner,
  .yc-aim-mode-toggle,
  .yc-aim-ruled-btn,
  .yc-aim-susp-diagnose { display: none !important; }
}

/* ============================================================
   v2.1 ADDITIONS — Scan Report Widget
============================================================ */

/* PDF drop zone */
.yc-aim-pdf-zone {
  margin: 0 20px 0;
  border: 2px dashed var(--yc-border);
  border-radius: var(--yc-rsm);
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  background: var(--yc-bg);
}
.yc-aim-pdf-zone.drag-over {
  border-color: var(--yc-red);
  background: #fff5f5;
}
.yc-aim-pdf-zone.has-file {
  border-style: solid;
  border-color: #16a34a;
  background: #f0fdf4;
}
.yc-aim-pdf-icon  { font-size: 32px; margin-bottom: 10px; }
.yc-aim-pdf-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--yc-dark);
  margin-bottom: 6px;
}
.yc-aim-pdf-label span { font-weight: 400; color: var(--yc-muted); }
.yc-aim-pdf-browse {
  background: none;
  border: none;
  color: var(--yc-red);
  font-weight: 700;
  cursor: pointer;
  font-family: var(--yc-font);
  font-size: 15px;
  padding: 0;
  text-decoration: underline;
}
.yc-aim-pdf-hint {
  font-size: 12px;
  color: var(--yc-muted);
  margin-top: 4px;
}
.yc-aim-pdf-selected {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}
.yc-aim-pdf-name {
  font-size: 13px;
  font-weight: 600;
  color: #15803d;
}
.yc-aim-pdf-clear {
  background: none;
  border: none;
  color: var(--yc-muted);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0 4px;
}
.yc-aim-pdf-clear:hover { color: var(--yc-red); }
.yc-aim-scan-submit { margin-top: 14px; }

/* Scan loading note */
.yc-aim-scan-loading { padding: 20px 20px 10px; }

/* Scan results */
.yc-aim-scan-results { padding: 16px 20px 0; }

.yc-aim-scan-summary-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}
.yc-aim-scan-vehicle {
  font-size: 15px;
  font-weight: 700;
  color: var(--yc-dark);
}
.yc-aim-scan-date {
  font-size: 12px;
  font-weight: 400;
  color: var(--yc-muted);
  margin-left: 8px;
}
.yc-aim-scan-counts { display: flex; gap: 6px; }
.yc-aim-scan-count {
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
}
.yc-aim-scan-count.active { background: #fee2e2; color: #991b1b; }
.yc-aim-scan-count.stored { background: #fef9c3; color: #854d0e; }
.yc-aim-scan-count.total  { background: #f3f4f6; color: var(--yc-mid); }

/* Big picture */
.yc-aim-scan-big-picture {
  background: var(--yc-bg);
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  padding: 14px 16px;
  margin-bottom: 12px;
}
.yc-aim-scan-bp-text {
  font-size: 15px;
  color: var(--yc-mid);
  line-height: 1.65;
  margin-top: 6px;
}

/* Priority action */
.yc-aim-scan-priority {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-left: 4px solid #f97316;
  border-radius: 0 var(--yc-rsm) var(--yc-rsm) 0;
  padding: 10px 14px;
  margin-bottom: 14px;
}
.yc-aim-scan-pri-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: #9a3412;
  white-space: nowrap;
  margin-top: 2px;
}
.yc-aim-scan-pri-text {
  font-size: 14px;
  color: #7c2d12;
  line-height: 1.55;
}

/* Code sections */
.yc-aim-scan-codes-section { margin-bottom: 18px; }
.yc-aim-scan-active-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  background: #fee2e2;
  color: #991b1b;
  border-radius: 20px;
  padding: 2px 8px;
  margin-left: 8px;
}
.yc-aim-scan-stored-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  background: #fef9c3;
  color: #854d0e;
  border-radius: 20px;
  padding: 2px 8px;
  margin-left: 8px;
}
.yc-aim-scan-stored-note {
  font-size: 13px;
  color: var(--yc-muted);
  margin: 4px 0 10px;
}

/* Code cards */
.yc-aim-scan-code-card {
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  padding: 10px 14px;
  margin-bottom: 6px;
}
.yc-aim-scan-code-card.active {
  border-left: 3px solid var(--yc-red);
}
.yc-aim-scan-code-card.stored {
  opacity: .8;
}
.yc-aim-scan-code-top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}
.yc-aim-scan-code-num {
  font-size: 15px;
  font-weight: 700;
  font-family: monospace;
  color: var(--yc-dark);
}
.yc-aim-scan-code-sys {
  font-size: 12px;
  background: #f3f4f6;
  color: var(--yc-mid);
  border-radius: 4px;
  padding: 2px 7px;
  font-weight: 600;
}
.yc-aim-scan-code-desc {
  font-size: 14px;
  color: var(--yc-mid);
  line-height: 1.5;
}
.yc-aim-scan-code-detail {
  font-size: 13px;
  color: var(--yc-muted);
  margin-top: 5px;
  line-height: 1.5;
}
.yc-aim-scan-code-card.active .yc-aim-scan-code-detail {
  color: #7c2d12;
  background: #fff7ed;
  border-radius: 4px;
  padding: 5px 8px;
  margin-top: 6px;
}

/* Post-scan chat header */
.yc-aim-scan-chat {
  border-top: 2px solid var(--yc-border);
  margin-top: 16px;
}
.yc-aim-scan-chat-header {
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--yc-muted);
  background: var(--yc-bg);
  border-bottom: 1px solid var(--yc-border);
}
.yc-aim-scan-messages {
  padding: 12px 20px;
  min-height: 80px;
  max-height: 400px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}

/* ============================================================
   v2.1 ADDITIONS — Disclaimer Strip
============================================================ */
.yc-aim-disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  padding: 10px 20px;
  border-top: 1px solid var(--yc-border);
  background: var(--yc-bg);
  font-size: 12px;
  color: var(--yc-muted);
  line-height: 1.55;
}
.yc-aim-disc-link {
  color: var(--yc-red);
  font-weight: 600;
  text-decoration: none;
}
.yc-aim-disc-link:hover { text-decoration: underline; }

@media (max-width: 600px) {
  .yc-aim-scan-summary-header { flex-direction: column; align-items: flex-start; }
  .yc-aim-scan-priority { flex-direction: column; gap: 4px; }
}

@media print {
  .yc-aim-pdf-zone, .yc-aim-scan-chat,
  .yc-aim-scan-submit, .yc-aim-disclaimer { display: none !important; }
  .yc-aim-scan-code-card.active { border-left-color: #000 !important; }
}

/* ============================================================
   v2.2 — Scanner Instructions Tab
============================================================ */
.yc-aim-si-subtitle {
  font-size: 11px;
  font-weight: 400;
  color: var(--yc-muted);
  text-transform: none;
  letter-spacing: 0;
  margin-left: 8px;
}

.yc-aim-scanner-inst-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.yc-aim-scanner-inst-card {
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  overflow: hidden;
}

.yc-aim-si-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--yc-dark);
}
.yc-aim-si-seq {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--yc-red);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.yc-aim-si-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.yc-aim-si-param {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}
.yc-aim-si-pid {
  font-size: 11px;
  font-family: monospace;
  background: rgba(255,255,255,.12);
  color: #ccc;
  border-radius: 4px;
  padding: 2px 6px;
}

.yc-aim-si-body {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.yc-aim-si-row {
  font-size: 13px;
  color: var(--yc-mid);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.yc-aim-si-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--yc-muted);
}
.yc-aim-si-path {
  font-family: monospace;
  font-size: 13px;
  background: #f3f4f6;
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--yc-dark);
}

/* Normal / Abnormal range pair */
.yc-aim-si-ranges {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
@media (max-width: 500px) {
  .yc-aim-si-ranges { grid-template-columns: 1fr; }
}
.yc-aim-si-range {
  border-radius: var(--yc-rsm);
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.yc-aim-si-range.normal   { background: #f0fdf4; border: 1px solid #bbf7d0; }
.yc-aim-si-range.abnormal { background: #fff5f5; border: 1px solid #fecaca; }
.yc-aim-si-range-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.yc-aim-si-range.normal   .yc-aim-si-range-label { color: #15803d; }
.yc-aim-si-range.abnormal .yc-aim-si-range-label { color: #991b1b; }
.yc-aim-si-range-value {
  font-size: 13px;
  line-height: 1.5;
}
.yc-aim-si-range.normal   .yc-aim-si-range-value { color: #15803d; }
.yc-aim-si-range.abnormal .yc-aim-si-range-value { color: #7f1d1d; }

.yc-aim-si-conclusion {
  font-size: 13px;
  color: var(--yc-mid);
  background: #f8f8f8;
  border-left: 3px solid var(--yc-red);
  border-radius: 0 4px 4px 0;
  padding: 7px 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1.5;
}

/* ============================================================
   v2.2 — Drive Cycle Tab
============================================================ */
.yc-aim-dc-intro {
  font-size: 14px;
  color: var(--yc-mid);
  line-height: 1.65;
  margin: 0 0 14px;
}

.yc-aim-dc-block {
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  overflow: hidden;
  margin-bottom: 12px;
}
.yc-aim-dc-block-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 8px 14px;
  background: var(--yc-bg);
  border-bottom: 1px solid var(--yc-border);
  color: var(--yc-dark);
}

/* Preconditions */
.yc-aim-dc-precond-list {
  padding: 10px 14px 10px 28px !important;
}
.yc-aim-dc-precond { color: #78350f; font-size: 14px; }

/* Steps */
.yc-aim-dc-steps {
  display: flex;
  flex-direction: column;
}
.yc-aim-dc-step {
  display: flex;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--yc-border);
  align-items: flex-start;
}
.yc-aim-dc-step:last-child { border-bottom: none; }
.yc-aim-dc-step-num {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--yc-dark);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.yc-aim-dc-step-body { flex: 1; }
.yc-aim-dc-step-action {
  font-size: 14px;
  font-weight: 600;
  color: var(--yc-dark);
  margin-bottom: 4px;
  line-height: 1.5;
}
.yc-aim-dc-step-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.yc-aim-dc-duration {
  font-size: 12px;
  font-weight: 700;
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
  border-radius: 20px;
  padding: 2px 8px;
  white-space: nowrap;
}
.yc-aim-dc-purpose {
  font-size: 12px;
  color: var(--yc-muted);
  line-height: 1.5;
  font-style: italic;
}

/* Monitors */
.yc-aim-dc-monitors {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.yc-aim-dc-monitor {
  padding: 10px 14px;
  border-bottom: 1px solid var(--yc-border);
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.yc-aim-dc-monitor:last-child { border-bottom: none; }
.yc-aim-dc-monitor-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--yc-dark);
}
.yc-aim-dc-monitor-row {
  font-size: 13px;
  color: var(--yc-mid);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.yc-aim-dc-pass .yc-aim-si-label { color: #15803d; }
.yc-aim-dc-fail .yc-aim-si-label { color: #991b1b; }
.yc-aim-dc-pass { color: #15803d; }
.yc-aim-dc-fail { color: #7f1d1d; background: #fff5f5; border-radius: 4px; padding: 5px 8px; }

/* Confirmation */
.yc-aim-dc-confirm {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--yc-rsm);
  padding: 12px 14px;
  margin-top: 4px;
  font-size: 14px;
  color: #15803d;
  line-height: 1.55;
}
.yc-aim-dc-confirm-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  white-space: nowrap;
  margin-top: 2px;
}

@media print {
  .yc-aim-si-header { background: #1a1a1a !important; -webkit-print-color-adjust: exact; color-adjust: exact; }
  .yc-aim-dc-precond { color: #000 !important; }
}

/* ============================================================
   v2.2 — Scanner Comparison Block
   Two-column: Basic Reader (left) vs UCAN-II Pro (right)
============================================================ */
.yc-aim-sc-comparison {
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  overflow: hidden;
  margin-bottom: 6px;
}

.yc-aim-sc-comp-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 580px) {
  .yc-aim-sc-comp-cols { grid-template-columns: 1fr; }
}

/* Column shared */
.yc-aim-sc-col { display: flex; flex-direction: column; }
.yc-aim-sc-col-basic { border-right: 1px solid var(--yc-border); }
@media (max-width: 580px) {
  .yc-aim-sc-col-basic { border-right: none; border-bottom: 1px solid var(--yc-border); }
}

/* Column headers */
.yc-aim-sc-col-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--yc-border);
}
.yc-aim-sc-col-basic .yc-aim-sc-col-header { background: #f9fafb; }
.yc-aim-sc-col-ucan  .yc-aim-sc-col-header { background: var(--yc-dark); }

.yc-aim-sc-col-icon  { font-size: 16px; }
.yc-aim-sc-col-title {
  font-size: 13px;
  font-weight: 700;
  flex: 1;
}
.yc-aim-sc-col-basic .yc-aim-sc-col-title { color: var(--yc-mid); }
.yc-aim-sc-col-ucan  .yc-aim-sc-col-title { color: #fff; }

.yc-aim-sc-col-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 2px 7px;
  border-radius: 20px;
  white-space: nowrap;
}
.yc-aim-sc-col-badge.basic { background: #f3f4f6; color: var(--yc-muted); }
.yc-aim-sc-col-badge.ucan  { background: var(--yc-red); color: #fff; }

/* Column bodies */
.yc-aim-sc-col-body { padding: 12px 14px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.yc-aim-sc-col-ucan .yc-aim-sc-col-body { background: #1e1e1e; }

/* Basic side output */
.yc-aim-sc-basic-output {
  font-size: 13px;
  font-family: monospace;
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  padding: 8px 10px;
  color: var(--yc-mid);
  line-height: 1.5;
}

/* Common mistake callout */
.yc-aim-sc-consequence {
  font-size: 12px;
  color: #9a3412;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 4px;
  padding: 8px 10px;
  line-height: 1.55;
}
.yc-aim-sc-cons-label {
  display: block;
  font-weight: 700;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 3px;
  color: #c2410c;
}

/* UCAN side rows */
.yc-aim-sc-ucan-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.yc-aim-sc-ucan-row:last-of-type { border-bottom: none; padding-bottom: 0; }

.yc-aim-sc-ucan-param {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.yc-aim-sc-ucan-name {
  font-size: 12px;
  font-weight: 700;
  color: #e5e7eb;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.yc-aim-sc-ucan-val {
  font-size: 13px;
  font-weight: 700;
  font-family: monospace;
  color: #4ade80;
  background: rgba(74,222,128,.1);
  border-radius: 4px;
  padding: 1px 6px;
}
.yc-aim-sc-ucan-why {
  font-size: 12px;
  color: #9ca3af;
  line-height: 1.55;
}

/* Verdict */
.yc-aim-sc-verdict {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: rgba(216,27,27,.25);
  border: 1px solid rgba(216,27,27,.4);
  border-radius: 4px;
  padding: 7px 10px;
  line-height: 1.5;
  margin-top: 2px;
}

/* CTA button */
.yc-aim-sc-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 4px;
  background: var(--yc-red);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 5px;
  text-decoration: none;
  transition: background .15s;
  align-self: flex-start;
}
.yc-aim-sc-cta:hover { background: var(--yc-red-dk); color: #fff; }

@media print {
  .yc-aim-sc-col-ucan .yc-aim-sc-col-header { background: #1a1a1a !important; -webkit-print-color-adjust: exact; color-adjust: exact; }
  .yc-aim-sc-col-ucan .yc-aim-sc-col-body   { background: #1e1e1e !important; -webkit-print-color-adjust: exact; color-adjust: exact; }
  .yc-aim-sc-cta { display: none !important; }
}

/* ============================================================
   MOBILE RESPONSIVENESS PASS — comprehensive fixes
   Tested breakpoints: 375px (iPhone SE), 390px (iPhone 14),
   414px (iPhone Plus), 480px, 600px
============================================================ */

/* -- Base: ensure no horizontal overflow on any widget ------ */
.yc-aim-wrap {
  max-width: 100%;
  box-sizing: border-box;
}
.yc-aim-wrap * { box-sizing: border-box; }

/* -- Form bar padding on small screens --------------------- */
@media (max-width: 600px) {
  .yc-aim-form-bar  { padding: 12px 14px 10px; }
  .yc-aim-response  { padding: 0 14px 20px; }
  .yc-aim-header    { padding: 12px 14px; }
  .yc-aim-chips     { padding: 8px 14px; }
  .yc-aim-mode-bar  { padding: 8px 14px 0; }
  .yc-aim-tabs      { padding: 0 14px; }
  .yc-aim-action-bar{ padding: 10px 14px 14px; }
  .yc-aim-disclaimer{ padding: 10px 14px; }
  .yc-aim-banner-wrap { padding: 12px 14px 0; }
}

/* -- Mode toggle: stack on very small screens -------------- */
@media (max-width: 420px) {
  .yc-aim-mode-toggle {
    width: 100%;
    flex-direction: column;
  }
  .yc-aim-toggle-btn {
    border-right: none !important;
    border-bottom: 1px solid var(--yc-border);
    width: 100%;
    text-align: center;
    padding: 9px 14px;
  }
  .yc-aim-toggle-btn:last-child { border-bottom: none; }
}

/* -- Action bar buttons: full width on mobile -------------- */
@media (max-width: 480px) {
  .yc-aim-action-bar {
    flex-direction: column;
  }
  .yc-aim-action-bar .yc-aim-btn {
    width: 100%;
    justify-content: center;
  }
}

/* -- Confidence banner: stack fields vertically ------------ */
@media (max-width: 600px) {
  .yc-aim-confidence-banner {
    flex-direction: column;
    gap: 8px;
  }
  .yc-aim-conf-fields {
    flex-direction: column;
    align-items: stretch;
  }
  .yc-aim-conf-fields .yc-aim-select,
  .yc-aim-conf-fields .yc-aim-input,
  .yc-aim-conf-refine {
    width: 100% !important;
    max-width: 100% !important;
  }
}

/* -- Meta row (time/cost badges): wrap cleanly ------------- */
@media (max-width: 480px) {
  .yc-aim-meta-row { gap: 6px; }
  .yc-aim-meta-badge { font-size: 12px; padding: 4px 9px; }
}

/* -- Difficulty dots: reduce size on tiny screens ---------- */
@media (max-width: 360px) {
  .yc-aim-diff-dot { width: 11px; height: 11px; }
  .yc-aim-diff-label { font-size: 12px; }
}

/* -- Cause cards: tighten padding ----------------------- -- */
@media (max-width: 480px) {
  .yc-aim-cause-head { padding: 9px 12px 5px; }
  .yc-aim-cause-body.open { padding: 0 12px 10px; }
  .yc-aim-step-head  { padding: 9px 12px; }
  .yc-aim-step-body.open  { padding: 10px 12px 12px; }
  .yc-aim-prob-wrap  { margin: 0 12px 4px; }
}

/* -- Scanner instruction cards on mobile ------------------- */
@media (max-width: 600px) {
  .yc-aim-si-header { padding: 9px 12px; flex-wrap: wrap; gap: 6px; }
  .yc-aim-si-body   { padding: 10px 12px; }
  .yc-aim-si-path   { font-size: 12px; word-break: break-word; }
  /* Stack normal/abnormal on 480px instead of 500px */
}
@media (max-width: 480px) {
  .yc-aim-si-ranges { grid-template-columns: 1fr; }
  .yc-aim-si-title-wrap { flex-direction: column; align-items: flex-start; gap: 4px; }
}

/* -- Scanner comparison: full column stack on mobile ------- */
@media (max-width: 600px) {
  .yc-aim-sc-comp-cols { grid-template-columns: 1fr; }
  .yc-aim-sc-col-basic { border-right: none; border-bottom: 1px solid var(--yc-border); }
  .yc-aim-sc-col-body  { padding: 10px 12px; }
  .yc-aim-sc-col-header{ padding: 9px 12px; }
  .yc-aim-sc-ucan-val  { font-size: 12px; }
  .yc-aim-sc-cta       { width: 100%; justify-content: center; }
}

/* -- Drive cycle on mobile --------------------------------- */
@media (max-width: 600px) {
  .yc-aim-dc-step       { padding: 9px 12px; }
  .yc-aim-dc-step-num   { width: 22px; height: 22px; font-size: 11px; }
  .yc-aim-dc-step-action{ font-size: 13px; }
  .yc-aim-dc-step-meta  { flex-direction: column; align-items: flex-start; gap: 4px; }
  .yc-aim-dc-monitor    { padding: 9px 12px; }
  .yc-aim-dc-block-title{ padding: 7px 12px; font-size: 11px; }
  .yc-aim-dc-confirm    { flex-direction: column; gap: 4px; padding: 10px 12px; }
}

/* -- Scan widget on mobile --------------------------------- */
@media (max-width: 600px) {
  .yc-aim-pdf-zone  { margin: 0 14px; padding: 20px 14px; }
  .yc-aim-scan-results { padding: 12px 14px 0; }
  .yc-aim-scan-counts { flex-wrap: wrap; gap: 5px; }
  .yc-aim-scan-count  { font-size: 11px; padding: 2px 8px; }
  .yc-aim-scan-priority { padding: 9px 12px; }
  .yc-aim-scan-code-card { padding: 9px 12px; }
  .yc-aim-scan-code-top { gap: 6px; }
  .yc-aim-scan-code-num { font-size: 14px; }
  .yc-aim-scan-messages { padding: 10px 14px; }
  .yc-aim-scan-chat-header { padding: 9px 14px; }
}

/* -- Chat widget on mobile --------------------------------- */
@media (max-width: 600px) {
  .yc-aim-chat-ctx  { padding: 12px 14px; }
  .yc-aim-messages  { padding: 12px 14px; }
  .yc-aim-input-bar { padding: 10px 14px 12px; }
  .yc-aim-follow-chips { padding: 5px 14px 8px; }
  .yc-aim-welcome-text { font-size: 13px; padding: 10px 12px; }
  .yc-aim-bubble    { font-size: 13px; }
  .yc-aim-upgrade-wall { padding: 20px 14px; }
}

/* -- Suspected codes (symptom mode) on mobile -------------- */
@media (max-width: 480px) {
  .yc-aim-susp-top { flex-direction: column; align-items: flex-start; gap: 4px; }
  .yc-aim-susp-diagnose { width: 100%; justify-content: center; }
  .yc-aim-suspected-code { padding: 10px 12px; }
}

/* -- Tabs: ensure scrollable not clipped ------------------- */
@media (max-width: 600px) {
  .yc-aim-tabs { padding: 0 6px; }
  .yc-aim-tab  { padding: 9px 12px; font-size: 12px; }
}

/* -- Related chips: full width stack on tiny screens ------- */
@media (max-width: 360px) {
  .yc-aim-related-chip { width: 100%; flex-direction: column; align-items: flex-start; }
}

/* -- Header badge: hide on very small if it crowds --------- */
@media (max-width: 360px) {
  .yc-aim-query-badge { display: none; }
}

/* -- Touch target minimums: all interactive elements ------- */
@media (max-width: 600px) {
  .yc-aim-btn,
  .yc-aim-send,
  .yc-aim-toggle-btn,
  .yc-aim-mode-btn,
  .yc-aim-tab,
  .yc-aim-ruled-btn,
  .yc-aim-susp-diagnose,
  .yc-aim-conf-refine {
    min-height: 44px;
  }
  /* Exception: inline small buttons keep their height */
  .yc-aim-pdf-clear,
  .yc-aim-mode-btn { min-height: 36px; }
  .yc-aim-tab      { min-height: 40px; }
}

/* -- Prevent text overflow in all response text ------------ */
@media (max-width: 600px) {
  .yc-aim-cause-desc,
  .yc-aim-step-detail,
  .yc-aim-cause-check,
  .yc-aim-scan-bp-text,
  .yc-aim-scan-pri-text,
  .yc-aim-scan-code-desc,
  .yc-aim-scan-code-detail,
  .yc-aim-si-range-value,
  .yc-aim-si-conclusion,
  .yc-aim-sc-ucan-why,
  .yc-aim-dc-purpose {
    overflow-wrap: break-word;
    word-break: break-word;
  }
}

/* ============================================================
   Premium lock banner — Scanner Data + Drive Cycle tabs
============================================================ */
.yc-aim-premium-lock {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 14px;
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
  border-radius: var(--yc-rsm);
  padding: 16px 18px;
  border: 1px solid rgba(216,27,27,.3);
}
.yc-aim-lock-icon { font-size: 22px; flex-shrink: 0; margin-top: 1px; }
.yc-aim-lock-body { flex: 1; display: flex; flex-direction: column; gap: 5px; }
.yc-aim-lock-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}
.yc-aim-lock-desc {
  font-size: 13px;
  color: #9ca3af;
  line-height: 1.5;
}
.yc-aim-lock-cta {
  display: inline-flex;
  align-items: center;
  margin-top: 8px;
  background: var(--yc-red);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 7px 16px;
  border-radius: 5px;
  text-decoration: none;
  align-self: flex-start;
  transition: background .15s;
}
.yc-aim-lock-cta:hover { background: var(--yc-red-dk); color: #fff; }

@media (max-width: 480px) {
  .yc-aim-premium-lock { flex-direction: column; gap: 8px; }
  .yc-aim-lock-cta     { width: 100%; justify-content: center; }
}
@media print {
  .yc-aim-premium-lock { display: none !important; }
}

/* ============================================================
   v2.3 — Explain Widget
============================================================ */

/* Header: code badge + full name */
.yc-aim-ex-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 20px 10px;
  flex-wrap: wrap;
}
.yc-aim-ex-code-badge {
  font-size: 20px;
  font-weight: 800;
  font-family: monospace;
  color: var(--yc-white);
  background: var(--yc-dark);
  border-radius: var(--yc-rsm);
  padding: 8px 16px;
  letter-spacing: .06em;
  flex-shrink: 0;
  align-self: flex-start;
}
.yc-aim-ex-title-wrap { flex: 1; min-width: 200px; }
.yc-aim-ex-full-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--yc-dark);
  line-height: 1.3;
  margin-bottom: 6px;
}
.yc-aim-ex-meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.yc-aim-ex-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  background: #f3f4f6;
  color: var(--yc-mid);
  border-radius: 4px;
  padding: 2px 7px;
}

/* Plain english callout */
.yc-aim-ex-plain {
  margin: 0 20px 4px;
  padding: 10px 14px;
  background: #eff6ff;
  border-left: 3px solid #2563eb;
  border-radius: 0 var(--yc-rsm) var(--yc-rsm) 0;
  font-size: 14px;
  color: #1e3a5f;
  line-height: 1.6;
}

/* Section wrapper */
.yc-aim-ex-section { padding: 0 20px 18px; }
.yc-aim-ex-body-text {
  font-size: 14px;
  color: var(--yc-mid);
  line-height: 1.7;
  margin: 6px 0 0;
}

/* How the system works — distinct background */
.yc-aim-ex-system-box {
  background: var(--yc-bg);
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  padding: 12px 14px;
  margin-top: 6px;
}
.yc-aim-ex-system-box .yc-aim-ex-body-text { margin: 0; }

/* Symptoms */
.yc-aim-ex-symptoms { display: flex; flex-direction: column; gap: 7px; margin-top: 6px; }
.yc-aim-ex-symptom {
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  padding: 9px 12px;
}
.yc-aim-ex-sym-top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.yc-aim-ex-sym-name { font-size: 14px; font-weight: 600; color: var(--yc-dark); flex: 1; }
.yc-aim-ex-sym-lik {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 2px 7px;
  border-radius: 20px;
}
.sym-always   { background: #fee2e2; color: #991b1b; }
.sym-usually  { background: #ffedd5; color: #9a3412; }
.sym-sometimes{ background: #fef9c3; color: #854d0e; }
.sym-rarely   { background: #f3f4f6; color: var(--yc-muted); }
.yc-aim-ex-sym-detail { font-size: 13px; color: var(--yc-muted); margin-top: 5px; line-height: 1.5; }

/* DIY badge on causes */
.yc-aim-ex-diy {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 2px 7px;
  border-radius: 20px;
}
.yc-aim-ex-diy.yes { background: #dcfce7; color: #15803d; }
.yc-aim-ex-diy.no  { background: #f3f4f6; color: var(--yc-muted); }

/* Solutions */
.yc-aim-ex-solutions { display: flex; flex-direction: column; gap: 10px; margin-top: 6px; }
.yc-aim-ex-solution {
  border: 1px solid var(--yc-border);
  border-left: 3px solid var(--yc-red);
  border-radius: 0 var(--yc-rsm) var(--yc-rsm) 0;
  padding: 12px 14px;
}
.yc-aim-ex-sol-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 5px;
}
.yc-aim-ex-sol-title { font-size: 15px; font-weight: 700; color: var(--yc-dark); }
.yc-aim-ex-sol-cause {
  font-size: 12px;
  color: var(--yc-muted);
  margin-bottom: 8px;
  font-style: italic;
}
.yc-aim-ex-sol-costs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.yc-aim-ex-sol-steps {
  font-size: 13px;
  color: var(--yc-mid);
  line-height: 1.6;
  border-top: 1px solid var(--yc-border);
  padding-top: 8px;
  margin-top: 2px;
}
.yc-aim-ex-sol-notes {
  font-size: 12px;
  color: #78350f;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 4px;
  padding: 6px 10px;
  margin-top: 8px;
  line-height: 1.5;
}

/* Related codes */
.yc-aim-ex-related { display: flex; flex-direction: column; gap: 8px; margin-top: 6px; }
.yc-aim-ex-related-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
}
.yc-aim-ex-related-row .yc-aim-related-code { flex-shrink: 0; font-size: 15px; }
.yc-aim-ex-related-row .yc-aim-related-why  { font-size: 13px; color: var(--yc-mid); line-height: 1.5; }

/* OBD2 monitor note */
.yc-aim-ex-monitor-note {
  margin: 0 20px 16px;
  font-size: 12px;
  color: var(--yc-muted);
  background: #f9fafb;
  border: 1px solid var(--yc-border);
  border-radius: 4px;
  padding: 7px 10px;
  line-height: 1.5;
}

/* Output wrapper padding */
.yc-aim-explain-output { padding-bottom: 4px; }

/* Mobile */
@media (max-width: 600px) {
  .yc-aim-ex-header   { padding: 12px 14px 8px; gap: 10px; }
  .yc-aim-ex-plain    { margin: 0 14px 4px; }
  .yc-aim-ex-section  { padding: 0 14px 14px; }
  .yc-aim-ex-code-badge { font-size: 17px; padding: 6px 12px; }
  .yc-aim-ex-full-name  { font-size: 15px; }
  .yc-aim-ex-sol-header { flex-direction: column; }
  .yc-aim-ex-monitor-note { margin: 0 14px 12px; }
  .yc-aim-explain-output  { padding-bottom: 0; }
}

@media print {
  .yc-aim-explain-output { padding: 0; }
  .yc-aim-ex-code-badge  { background: #1a1a1a !important; -webkit-print-color-adjust: exact; color-adjust: exact; }
  .yc-aim-explain-chat   { display: none !important; }
}

/* ============================================================
   v2.4 — Unified Widget ([ai_mechanic] three-tab interface)
============================================================ */

/* Header: logo + language on same row */
.yc-aim-unified-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--yc-dark);
  gap: 12px;
  flex-wrap: wrap;
}
.yc-aim-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.yc-aim-header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Language select in dark header */
.yc-aim-unified-lang {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  color: #fff;
  font-size: 13px;
  height: 32px;
  border-radius: 5px;
  padding: 0 8px;
}
.yc-aim-unified-lang option { background: #1a1a1a; color: #fff; }

/* Three-tab strip */
.yc-aim-unified-tabs {
  display: flex;
  border-bottom: 2px solid var(--yc-border);
  background: var(--yc-bg);
}
.yc-aim-unified-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  padding: 11px 14px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--yc-font);
  color: var(--yc-muted);
  cursor: pointer;
  justify-content: center;
  transition: color .15s, border-color .15s, background .15s;
  white-space: nowrap;
}
.yc-aim-unified-tab:hover {
  color: var(--yc-dark);
  background: rgba(0,0,0,.03);
}
.yc-aim-unified-tab.active {
  color: var(--yc-red);
  border-bottom-color: var(--yc-red);
  background: var(--yc-white);
}
.yc-aim-utab-icon  { font-size: 15px; }
.yc-aim-utab-label { font-size: 13px; }

/* Tab panels */
.yc-aim-tab-panel { }

/* Mobile unified */
@media (max-width: 480px) {
  .yc-aim-unified-header { padding: 10px 14px; }
  .yc-aim-unified-tab    { padding: 9px 8px; gap: 4px; }
  .yc-aim-utab-label     { font-size: 12px; }
  .yc-aim-utab-icon      { font-size: 13px; }
}
@media (max-width: 360px) {
  .yc-aim-utab-label { display: none; }
  .yc-aim-utab-icon  { font-size: 18px; }
  .yc-aim-unified-tab { padding: 10px; }
}

@media print {
  .yc-aim-unified-tabs,
  .yc-aim-unified-lang,
  .yc-aim-header-right { display: none !important; }
  .yc-aim-unified-header { background: #1a1a1a !important; -webkit-print-color-adjust: exact; color-adjust: exact; }
  /* Show all panels for print */
  .yc-aim-tab-panel { display: block !important; }
}

/* ============================================================
   v2.5 — Plan Introduction & Upgrade Walls
============================================================ */

/* Welcome message plan intro block */
.yc-aim-plan-intro {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,.15);
  font-size: 13px;
  color: #ccc;
  line-height: 1.55;
}
.yc-aim-plan-intro-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--yc-red);
  margin-bottom: 3px;
}
.yc-aim-plan-link {
  color: #fff;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.yc-aim-plan-link:hover { color: #fca5a5; }

/* Free queries remaining note */
.yc-aim-free-note {
  margin-top: 8px;
  font-size: 11px;
  color: #aaa;
  font-weight: 400;
}

/* Soft upsell banner — 1 question remaining */
.yc-aim-soft-upsell {
  padding: 10px 20px;
  background: #fffbeb;
  border-top: 1px solid #fde68a;
  font-size: 13px;
  color: #78350f;
  line-height: 1.55;
}
.yc-aim-soft-upsell a { color: var(--yc-red); font-weight: 700; }

/* Two-plan upgrade wall */
.yc-aim-plan-wall {
  padding: 24px 20px;
  border-top: 2px solid var(--yc-border);
  background: var(--yc-bg);
}
.yc-aim-plan-wall-header { margin-bottom: 18px; }
.yc-aim-plan-wall-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--yc-dark);
  margin-bottom: 6px;
}
.yc-aim-plan-wall-sub {
  font-size: 13px;
  color: var(--yc-muted);
  line-height: 1.55;
}
.yc-aim-plan-wall-footer {
  margin-top: 14px;
  font-size: 12px;
  color: var(--yc-muted);
  text-align: center;
}

/* Plan cards side by side */
.yc-aim-plan-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 520px) {
  .yc-aim-plan-cards { grid-template-columns: 1fr; }
}

.yc-aim-plan-card {
  position: relative;
  background: var(--yc-white);
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-rsm);
  padding: 16px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.yc-aim-plan-card.featured {
  border-color: var(--yc-red);
  border-width: 2px;
  box-shadow: 0 2px 12px rgba(216,27,27,.1);
}
.yc-aim-plan-badge {
  position: absolute;
  top: -1px; right: 12px;
  background: var(--yc-red);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 2px 8px;
  border-radius: 0 0 5px 5px;
}
.yc-aim-plan-name {
  font-size: 17px;
  font-weight: 800;
  color: var(--yc-dark);
  margin-top: 4px;
}
.yc-aim-plan-features {
  list-style: none;
  padding: 0;
  margin: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.yc-aim-plan-features li {
  font-size: 13px;
  color: var(--yc-mid);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}
.yc-aim-plan-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #16a34a;
  font-weight: 700;
  font-size: 12px;
}

.yc-aim-plan-cta {
  display: block;
  text-align: center;
  padding: 9px 14px;
  border-radius: var(--yc-rsm);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: background .15s;
}
.yc-aim-plan-cta.diy {
  background: var(--yc-bg);
  color: var(--yc-dark);
  border: 1px solid var(--yc-border);
}
.yc-aim-plan-cta.diy:hover { background: #e5e7eb; }
.yc-aim-plan-cta.pro {
  background: var(--yc-red);
  color: #fff;
  border: none;
}
.yc-aim-plan-cta.pro:hover { background: var(--yc-red-dk); }

/* Inline plan suggestion card (after AI response) */
.yc-aim-inline-plan-card {
  max-width: 82%;
  background: var(--yc-dark);
  border-radius: 4px 10px 10px 10px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.yc-aim-inline-plan-title {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
}
.yc-aim-inline-plan-reason {
  font-size: 12px;
  color: #9ca3af;
  line-height: 1.5;
}
.yc-aim-inline-plan-options {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}
.yc-aim-inline-plan-btn {
  font-size: 12px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 5px;
  text-decoration: none;
  transition: background .15s;
}
.yc-aim-inline-plan-btn.diy {
  background: rgba(255,255,255,.1);
  color: #e5e7eb;
  border: 1px solid rgba(255,255,255,.15);
}
.yc-aim-inline-plan-btn.diy:hover { background: rgba(255,255,255,.18); }
.yc-aim-inline-plan-btn.pro {
  background: var(--yc-red);
  color: #fff;
}
.yc-aim-inline-plan-btn.pro:hover { background: var(--yc-red-dk); }

@media (max-width: 480px) {
  .yc-aim-plan-wall      { padding: 18px 14px; }
  .yc-aim-inline-plan-card { max-width: 95%; }
  .yc-aim-soft-upsell    { padding: 10px 14px; }
}
@media print {
  .yc-aim-plan-wall, .yc-aim-soft-upsell,
  .yc-aim-inline-plan-card { display: none !important; }
}

/* ============================================================
   v2.5.1 — Section Labels + Mechanic Section
============================================================ */

/* Section divider labels */
.yc-aim-section-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  background: var(--yc-bg);
  border-bottom: 1px solid var(--yc-border);
  color: var(--yc-muted);
}
.yc-aim-section-label.mechanic {
  background: var(--yc-dark);
  color: #9ca3af;
  border-bottom: none;
  margin-top: 2px;
}
.yc-aim-section-label-icon { font-size: 14px; }
.yc-aim-section-label.mechanic .yc-aim-section-label-icon { font-size: 16px; }

/* Mechanic support section */
.yc-aim-mechanic-section {
  padding: 20px 20px 24px;
  background: var(--yc-white);
}

.yc-aim-mechanic-intro {
  font-size: 14px;
  color: var(--yc-mid);
  line-height: 1.65;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--yc-border);
}

/* Plan tagline */
.yc-aim-plan-tagline {
  font-size: 13px;
  color: var(--yc-muted);
  margin-top: -4px;
  font-weight: 400;
}

/* Mechanic section footer */
.yc-aim-mechanic-footer {
  margin-top: 14px;
  font-size: 12px;
  color: var(--yc-muted);
  text-align: center;
}
.yc-aim-mechanic-footer a {
  color: var(--yc-red);
  font-weight: 600;
  text-decoration: none;
}
.yc-aim-mechanic-footer a:hover { text-decoration: underline; }

@media (max-width: 600px) {
  .yc-aim-section-label   { padding: 9px 14px; }
  .yc-aim-mechanic-section { padding: 16px 14px 20px; }
}
@media print {
  .yc-aim-section-label.mechanic,
  .yc-aim-mechanic-section { display: none !important; }
}

/* ============================================================
   v2.5.2 — Security & UX Fixes
============================================================ */

/* Symptom textarea character counter */
.yc-aim-char-counter {
  font-size: 11px;
  color: var(--yc-muted);
  align-self: flex-end;
  white-space: nowrap;
  padding: 2px 0;
  flex-shrink: 0;
}
.yc-aim-fields-symptom { align-items: flex-start; flex-wrap: wrap; }

/* Plan cards: fix padding gap between 520px and 600px */
@media (max-width: 600px) {
  .yc-aim-plan-cards {
    gap: 10px;
  }
  .yc-aim-plan-card {
    padding: 14px 14px 12px;
  }
}

/* Active tab state with aria-selected visual feedback */
.yc-aim-unified-tab[aria-selected="true"] {
  color: var(--yc-red);
  border-bottom-color: var(--yc-red);
  background: var(--yc-white);
}

/* Focus visible states for keyboard navigation */
.yc-aim-unified-tab:focus-visible,
.yc-aim-btn:focus-visible,
.yc-aim-input:focus-visible,
.yc-aim-select:focus-visible {
  outline: 2px solid var(--yc-red);
  outline-offset: 2px;
}

/* Smooth tab panel transitions */
.yc-aim-tab-panel {
  animation: yc-panel-in .15s ease;
}
@keyframes yc-panel-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}
.yc-aim-tab-panel[hidden] { animation: none; }

/* ============================================================
   v2.5.4 — UX / UI Improvements
============================================================ */

/* Loading message with spinner */
.yc-aim-loading-msg {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 0 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--yc-muted);
}
.yc-aim-loading-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid #e5e7eb;
  border-top-color: var(--yc-red);
  border-radius: 50%;
  flex-shrink: 0;
  animation: yc-spin .7s linear infinite;
}
@keyframes yc-spin { to { transform: rotate(360deg); } }

/* Starter example chips */
.yc-aim-starter-chips {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
  padding: 8px 20px 0;
}
.yc-aim-starter-label {
  font-size: 12px;
  color: var(--yc-muted);
  font-weight: 600;
}
.yc-aim-starter-chip {
  font-size: 12px;
  font-weight: 700;
  font-family: monospace;
  background: var(--yc-bg);
  border: 1px solid var(--yc-border);
  border-radius: 4px;
  padding: 3px 10px;
  cursor: pointer;
  color: var(--yc-dark);
  transition: all .15s;
  font-family: var(--yc-font);
}
.yc-aim-starter-chip:hover {
  border-color: var(--yc-red);
  color: var(--yc-red);
  background: #fff5f5;
}

/* Result context strip */
.yc-aim-result-ctx {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--yc-bg);
  border-bottom: 1px solid var(--yc-border);
  font-size: 13px;
  font-weight: 600;
  color: var(--yc-dark);
}
.yc-aim-ctx-code {
  font-family: monospace;
  font-size: 14px;
  font-weight: 800;
  color: var(--yc-red);
}
.yc-aim-ctx-change {
  margin-left: auto;
  background: none;
  border: 1px solid var(--yc-border);
  border-radius: 4px;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  color: var(--yc-muted);
  font-family: var(--yc-font);
  transition: all .15s;
}
.yc-aim-ctx-change:hover {
  border-color: var(--yc-red);
  color: var(--yc-red);
}

/* Explain vehicle hint */
.yc-aim-explain-hint {
  font-size: 12px;
  color: var(--yc-muted);
  padding: 6px 0 2px;
  font-style: italic;
  width: 100%;
}

/* Mobile adjustments */
@media (max-width: 600px) {
  .yc-aim-starter-chips { padding: 8px 14px 0; }
  .yc-aim-result-ctx    { padding: 8px 14px; flex-wrap: wrap; }
  .yc-aim-ctx-change    { margin-left: 0; }
}
@media print {
  .yc-aim-starter-chips,
  .yc-aim-result-ctx { display: none !important; }
}

/* ============================================================
   Scan widget — URL parameter code context banner
============================================================ */
.yc-aim-scan-code-ctx {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 20px;
  background: #eff6ff;
  border-bottom: 1px solid #bfdbfe;
  font-size: 13px;
  color: #1e3a5f;
  line-height: 1.5;
}
.yc-aim-scan-ctx-code {
  font-family: monospace;
  font-size: 15px;
  font-weight: 800;
  color: var(--yc-red);
  background: #fff;
  border: 1px solid #fecaca;
  border-radius: 4px;
  padding: 2px 8px;
  flex-shrink: 0;
}
.yc-aim-scan-ctx-vehicle {
  font-weight: 600;
  color: var(--yc-dark);
  flex-shrink: 0;
}
.yc-aim-scan-ctx-vehicle::before { content: '·'; margin-right: 10px; color: #94a3b8; }
.yc-aim-scan-ctx-msg {
  color: #3b5a82;
  font-size: 12px;
  flex: 1;
  min-width: 200px;
}

@media (max-width: 480px) {
  .yc-aim-scan-code-ctx { padding: 10px 14px; gap: 7px; }
  .yc-aim-scan-ctx-msg  { min-width: 100%; }
}

/* ============================================================
   Scan widget — Android folder path hint
============================================================ */
.yc-aim-pdf-folder-hint {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 10px;
  padding: 9px 14px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--yc-rsm);
  font-size: 13px;
  color: #78350f;
  line-height: 1.55;
  text-align: left;
  width: 100%;
  box-sizing: border-box;
}
.yc-aim-pdf-folder-icon { font-size: 15px; flex-shrink: 0; margin-top: 1px; }

@media (max-width: 480px) {
  .yc-aim-pdf-folder-hint { font-size: 12px; padding: 8px 12px; }
}

/* ============================================================
   Mobile hardening — Android 9 / responsive fixes
============================================================ */

/* -webkit-overflow-scrolling: touch for smooth momentum scrolling
   on Android 9 WebView (Chrome 69 era) in all scroll containers */
.yc-aim-messages,
.yc-aim-scan-messages,
.yc-aim-explain-messages,
.yc-aim-tabs,
.yc-aim-response,
.yc-aim-explain-output {
  -webkit-overflow-scrolling: touch;
}

/* Remove tap highlight flash on Android — grey square on tap looks broken */
.yc-aim-btn,
.yc-aim-unified-tab,
.yc-aim-cause-head,
.yc-aim-step-head,
.yc-aim-starter-chip,
.yc-aim-starter-chip,
.yc-aim-follow-chip,
.yc-aim-related-chip,
.yc-aim-plan-cta,
.yc-aim-toggle-btn,
.yc-aim-mode-btn,
.yc-aim-tab,
.yc-aim-send,
.yc-aim-ctx-change,
.yc-aim-pdf-browse {
  -webkit-tap-highlight-color: transparent;
}

/* Scan report active/stored badge: bump from 10px to 11px for readability */
.yc-aim-scan-active-badge,
.yc-aim-scan-stored-badge {
  font-size: 11px;
}

/* Print: hide all newer sections added after original print block */
@media print {
  .yc-aim-scan-code-ctx,
  .yc-aim-mechanic-section,
  .yc-aim-section-label.mechanic,
  .yc-aim-pdf-folder-hint,
  .yc-aim-plan-wall,
  .yc-aim-soft-upsell,
  .yc-aim-inline-plan-card,
  .yc-aim-scanner-pitch,
  .yc-aim-action-bar,
  .yc-aim-mode-bar,
  .yc-aim-print-btn { display: none !important; }
}

/* ============================================================
   v2.7.2 — Loading progress bar + info status state
============================================================ */

/* Progress bar */
.yc-aim-loading-bar {
  height: 4px;
  background: #e5e7eb;
  border-radius: 2px;
  margin: 10px 0 4px;
  overflow: hidden;
}
.yc-aim-loading-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--yc-red);
  border-radius: 2px;
  transition: width 1.2s ease;
}

/* Patience note below progress bar */
.yc-aim-loading-steps-note {
  font-size: 12px;
  color: var(--yc-muted);
  line-height: 1.5;
  margin-bottom: 14px;
  font-style: italic;
}

/* Info status state (blue) — used for "enter your code" nudge */
.yc-aim-status.info {
  background: #eff6ff;
  color: #1e40af;
  border: 1px solid #bfdbfe;
  border-radius: var(--yc-rsm);
  padding: 10px 14px;
  font-size: 14px;
  line-height: 1.5;
}

/* ============================================================
   Scan page — auto-diagnose section (shown when ?code= arrives)
============================================================ */

/* Diagnose section wrapper */
.yc-aim-scan-diag-section {
  border-bottom: 1px solid var(--yc-border);
  padding-bottom: 20px;
  margin-bottom: 0;
}

/* Header row: code badge + vehicle + language selector */
.yc-aim-scan-diag-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 20px 10px;
  flex-wrap: wrap;
}
.yc-aim-scan-diag-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.yc-aim-scan-diag-code {
  font-family: monospace;
  font-size: 18px;
  font-weight: 800;
  color: var(--yc-red);
  background: #fff1f1;
  border: 1px solid #fecaca;
  border-radius: 4px;
  padding: 3px 10px;
}
.yc-aim-scan-diag-vehicle {
  font-size: 14px;
  font-weight: 600;
  color: var(--yc-dark);
}

/* Diagnose result blocks */
.yc-aim-scan-diag-result { padding: 0 20px 16px; }

.yc-aim-diag-summary {
  background: #f8fafc;
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-r);
  padding: 14px 16px;
  margin-bottom: 16px;
}
.yc-aim-diag-sev-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.yc-aim-sev-badge {
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 3px 10px;
  border-radius: 20px;
}
.yc-aim-diag-repair-info {
  font-size: 12px;
  color: var(--yc-muted);
}
.yc-aim-diag-plain {
  font-size: 15px;
  font-weight: 600;
  color: var(--yc-dark);
  margin: 0 0 6px;
  line-height: 1.5;
}
.yc-aim-diag-tech {
  font-size: 13px;
  color: #444;
  margin: 0;
  line-height: 1.6;
}

/* Diagnose content blocks */
.yc-aim-diag-block {
  margin-bottom: 16px;
  border: 1px solid var(--yc-border);
  border-radius: var(--yc-r);
  overflow: hidden;
}
.yc-aim-diag-block-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--yc-dark);
  background: #f8fafc;
  padding: 10px 14px;
  border-bottom: 1px solid var(--yc-border);
}

/* Cause items */
.yc-aim-cause-item  { padding: 10px 14px; border-bottom: 1px solid #f3f4f6; }
.yc-aim-cause-item:last-child { border-bottom: none; }
.yc-aim-cause-row   { display: flex; justify-content: space-between; align-items: center; margin-bottom: 5px; }
.yc-aim-cause-label { font-size: 13px; font-weight: 600; color: var(--yc-dark); }
.yc-aim-cause-pct   { font-size: 12px; color: var(--yc-muted); font-weight: 600; }
.yc-aim-cause-desc  { font-size: 12px; color: #555; margin: 5px 0 0; line-height: 1.5; }

/* Diagnostic steps */
.yc-aim-diag-step { display: flex; gap: 12px; padding: 10px 14px; border-bottom: 1px solid #f3f4f6; }
.yc-aim-diag-step:last-child { border-bottom: none; }
.yc-aim-step-num {
  width: 24px; height: 24px; min-width: 24px;
  background: var(--yc-red); color: #fff;
  border-radius: 50%; font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-top: 2px;
}
.yc-aim-step-body-inner strong { font-size: 13px; color: var(--yc-dark); }
.yc-aim-step-body-inner p { font-size: 12px; color: #555; margin: 4px 0 0; line-height: 1.5; }
.yc-aim-step-tools { font-size: 11px; color: var(--yc-muted); margin-top: 4px; }

/* Quick checks */
.yc-aim-quick-list { margin: 0; padding: 10px 14px 10px 30px; }
.yc-aim-quick-list li { font-size: 13px; color: #444; padding: 3px 0; line-height: 1.5; }

/* Estimated cost */
.yc-aim-diag-cost {
  font-size: 13px; color: var(--yc-dark);
  background: #f0fdf4; border: 1px solid #bbf7d0;
  border-radius: var(--yc-rsm); padding: 10px 14px;
  margin-bottom: 4px;
}

/* Divider between diagnose results and PDF upload */
.yc-aim-scan-divider {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 20px;
  background: #fafbfc;
  border-top: 1px solid var(--yc-border);
  border-bottom: 1px solid var(--yc-border);
}
.yc-aim-scan-divider span {
  font-size: 13px; font-weight: 600; color: #444;
}

/* Mobile */
@media (max-width: 480px) {
  .yc-aim-scan-diag-header { padding: 10px 14px 8px; }
  .yc-aim-scan-diag-code   { font-size: 16px; }
  .yc-aim-scan-diag-result { padding: 0 14px 12px; }
  .yc-aim-diag-repair-info { font-size: 11px; }
  .yc-aim-diag-plain       { font-size: 14px; }
}

/* ============================================================
   Scan page — Make hub resources link
============================================================ */
.yc-aim-diag-resources {
  margin-top: 16px;
  padding: 14px 16px;
  background: #f0f7ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--yc-r);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.yc-aim-diag-resources-label {
  font-size: 13px;
  font-weight: 600;
  color: #1e40af;
}
.yc-aim-diag-resources-link {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: var(--yc-red);
  padding: 8px 16px;
  border-radius: 6px;
  text-decoration: none;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}
.yc-aim-diag-resources-link:hover { opacity: .88; }

@media (max-width: 480px) {
  .yc-aim-diag-resources { flex-direction: column; align-items: flex-start; }
  .yc-aim-diag-resources-link { width: 100%; text-align: center; }
}

/* ============================================================
   v2.8.8 — Header separation + language label + no round corners
============================================================ */

/* Separate plugin widget from site navbar visually */
.yc-aim-wrap {
  border-radius: 0 !important;
  border-top: 3px solid var(--yc-red);
  margin-top: 0;
}
.yc-aim-header {
  border-radius: 0;
}

/* Language selector wrapper with label */
.yc-aim-lang-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.yc-aim-lang-label {
  font-size: 11px;
  color: var(--yc-muted);
  white-space: nowrap;
  font-weight: 600;
}

/* Language select — no round corners */
.yc-aim-lang,
select.yc-aim-lang,
.yc-aim-select.yc-aim-lang {
  border-radius: 0 !important;
  font-size: 12px !important;
  height: 30px;
  padding: 2px 6px;
  max-width: 160px;
}

/* All selects and inputs — no round corners */
.yc-aim-wrap select,
.yc-aim-wrap .yc-aim-select,
.yc-aim-wrap .yc-aim-input,
.yc-aim-wrap .yc-aim-btn:not(.yc-aim-pdf-browse):not(.yc-aim-diag-resources-link) {
  border-radius: 0 !important;
}

/* Probability bars — keep square */
.yc-aim-prob-bar-bg,
.yc-aim-prob-bar-fill,
.yc-aim-loading-bar,
.yc-aim-loading-bar-fill {
  border-radius: 0 !important;
}

/* Scan diag code badge — square */
.yc-aim-scan-diag-code {
  border-radius: 0 !important;
}

/* Severity badge — square */
.yc-aim-sev-badge {
  border-radius: 0 !important;
}

@media (max-width: 480px) {
  .yc-aim-lang-label { display: none; }
  .yc-aim-lang, select.yc-aim-lang { max-width: 120px; }
}

/* ============================================================
   Symptom mode — next steps CTA block
============================================================ */
.yc-aim-symptom-next {
  margin: 16px 0 0;
  padding: 16px 18px;
  background: #f8fafc;
  border: 1px solid var(--yc-border);
  border-top: 3px solid var(--yc-red);
}
.yc-aim-symptom-next-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--yc-dark);
  margin-bottom: 6px;
}
.yc-aim-symptom-next-intro {
  font-size: 13px;
  color: #555;
  margin: 0 0 14px;
  line-height: 1.6;
}
.yc-aim-symptom-next-cards {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.yc-aim-next-card {
  flex: 1;
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--yc-border);
  padding: 14px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.yc-aim-next-card.scanner { border-left: 3px solid var(--yc-red); }
.yc-aim-next-card.mechanic { border-left: 3px solid #1d4ed8; }
.yc-aim-next-card-icon { font-size: 22px; line-height: 1; flex-shrink: 0; margin-top: 2px; }
.yc-aim-next-card-body strong { font-size: 13px; color: var(--yc-dark); }
.yc-aim-next-card-body p {
  font-size: 12px; color: #555; margin: 4px 0 10px; line-height: 1.5;
}
.yc-aim-next-card-body .yc-aim-btn {
  font-size: 12px; padding: 6px 12px;
}

/* Suspected code chips (secondary context) */
.yc-aim-susp-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.yc-aim-susp-code-chip {
  font-family: monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--yc-red);
  background: #fff1f1;
  border: 1px solid #fecaca;
  padding: 4px 10px;
  border-radius: 0;
  cursor: pointer;
  transition: background .15s;
}
.yc-aim-susp-code-chip:hover { background: #fee2e2; }

@media (max-width: 480px) {
  .yc-aim-symptom-next-cards { flex-direction: column; }
  .yc-aim-next-card { min-width: 0; }
}

/* ============================================================
   Scan page — symptom description input
============================================================ */
.yc-aim-symptom-input-wrap {
  padding: 14px 20px 0;
  background: #fff;
}
.yc-aim-symptom-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--yc-dark);
  margin-bottom: 6px;
}
.yc-aim-symptom-optional {
  font-weight: 400;
  color: var(--yc-muted);
  font-size: 12px;
}
.yc-aim-symptom-field {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--yc-border);
  border-radius: 0;
  padding: 10px 12px;
  font-size: 13px;
  font-family: var(--yc-font);
  line-height: 1.5;
  color: var(--yc-dark);
  resize: vertical;
  min-height: 72px;
  background: #fafafa;
  transition: border-color .15s;
}
.yc-aim-symptom-field:focus {
  outline: none;
  border-color: var(--yc-red);
  background: #fff;
}
.yc-aim-symptom-counter {
  font-size: 11px;
  color: var(--yc-muted);
  text-align: right;
  margin-top: 3px;
}

@media (max-width: 480px) {
  .yc-aim-symptom-input-wrap { padding: 12px 14px 0; }
}

/* ============================================================
   Severity Hero block
============================================================ */
.yc-aim-sev-hero {
  padding: 16px 20px;
  border: 1px solid;
  border-left: 4px solid;
  margin-bottom: 0;
}
.yc-aim-sev-hero-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.yc-aim-sev-hero-badge {
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  padding: 4px 12px;
  border-radius: 0;
}
.yc-aim-sev-hero-note {
  font-size: 12px;
  font-weight: 600;
  color: #555;
}
.yc-aim-sev-hero-msg {
  font-size: 16px;
  font-weight: 700;
  color: var(--yc-dark);
  line-height: 1.4;
  margin-bottom: 6px;
}
.yc-aim-sev-hero-tech {
  font-size: 13px;
  color: #555;
  line-height: 1.6;
}

/* Stats row */
.yc-aim-stats-row {
  display: flex;
  border-bottom: 1px solid var(--yc-border);
}
.yc-aim-stat-box {
  flex: 1;
  padding: 12px 14px;
  border-right: 1px solid var(--yc-border);
  min-width: 0;
}
.yc-aim-stat-box:last-child { border-right: none; }
.yc-aim-stat-label  { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--yc-muted); margin-bottom: 4px; }
.yc-aim-stat-dots   { font-size: 16px; color: var(--yc-red); letter-spacing: 2px; margin-bottom: 2px; }
.yc-aim-stat-value  { font-size: 15px; font-weight: 700; color: var(--yc-dark); margin-bottom: 2px; }
.yc-aim-stat-sub    { font-size: 11px; color: var(--yc-muted); }

/* Cost row — DIY vs Shop */
.yc-aim-cost-row {
  display: flex;
  border-bottom: 1px solid var(--yc-border);
}
.yc-aim-cost-box {
  flex: 1;
  padding: 12px 14px;
  border-right: 1px solid var(--yc-border);
}
.yc-aim-cost-box:last-child { border-right: none; }
.yc-aim-cost-box.diy  { background: #f0fdf4; }
.yc-aim-cost-box.shop { background: #fefce8; }
.yc-aim-cost-label  { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--yc-muted); margin-bottom: 4px; }
.yc-aim-cost-value  { font-size: 18px; font-weight: 800; color: var(--yc-dark); }

/* Get Tips button + footer */
.yc-aim-symptom-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
  gap: 8px;
}
.yc-aim-symp-tips-btn {
  font-size: 12px;
  padding: 6px 14px;
  background: var(--yc-dark);
  color: #fff;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.yc-aim-symp-tips-btn:hover { opacity: .85; }
.yc-aim-symp-tips-btn:disabled { opacity: .5; cursor: not-allowed; }

/* Tips result area */
.yc-aim-symp-tips-wrap {
  border-top: 1px solid var(--yc-border);
  background: #f8fafc;
}
.yc-aim-symp-tips-loading {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  font-size: 13px;
  color: var(--yc-muted);
}
.yc-aim-symp-tips-inner { padding: 16px 20px; }
.yc-aim-symp-tips-title {
  font-size: 14px; font-weight: 700; color: var(--yc-dark); margin-bottom: 8px;
}
.yc-aim-symp-summary {
  font-size: 14px; color: #444; line-height: 1.6; margin: 0 0 12px;
}
.yc-aim-symp-section-title {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .04em; color: var(--yc-muted); margin: 12px 0 6px;
}
.yc-aim-symp-tips-cta {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--yc-muted);
  font-style: italic;
  border-top: 1px solid var(--yc-border);
  padding-top: 10px;
}

@media (max-width: 480px) {
  .yc-aim-stats-row, .yc-aim-cost-row { flex-direction: column; }
  .yc-aim-stat-box, .yc-aim-cost-box { border-right: none; border-bottom: 1px solid var(--yc-border); }
  .yc-aim-stat-box:last-child, .yc-aim-cost-box:last-child { border-bottom: none; }
  .yc-aim-sev-hero-msg { font-size: 14px; }
  .yc-aim-cost-value { font-size: 15px; }
}