:root {
  --bg: #f7f5ef;
  --card: #ffffff;
  --text: #1e2a35;
  --muted: #667482;
  --line: rgba(31, 42, 53, 0.12);
  --blue: #1f9eed;
  --blue-dark: #147dc0;
  --orange: #ffb64d;
  --green: #65cfa7;
  --red: #ff6b6b;
  --green-soft: #e9fbf4;
  --red-soft: #fff0f0;
  --blue-soft: #eaf7ff;
  --shadow: 0 28px 80px rgba(33, 45, 58, 0.14);
  --radius-lg: 32px;
  --radius-md: 22px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 5% 0%, rgba(31, 158, 237, 0.16), transparent 30%),
    radial-gradient(circle at 95% 12%, rgba(255, 182, 77, 0.18), transparent 28%),
    var(--bg);
  color: var(--text);
}
button, input, textarea, select { font: inherit; }
a { color: inherit; text-decoration: none; }
code {
  background: rgba(31, 158, 237, 0.12);
  color: var(--blue-dark);
  padding: 2px 6px;
  border-radius: 8px;
}

[hidden] { display: none !important; }
.page-shell { min-height: 100vh; }
.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 18px;
  display: inline-grid;
  place-items: center;
  background: linear-gradient(135deg, var(--blue), var(--green));
  box-shadow: 0 12px 28px rgba(31, 158, 237, 0.22);
  color: white;
  font-weight: 900;
  letter-spacing: -0.08em;
}
.brand-copy { display: flex; flex-direction: column; line-height: 1.1; }
.brand-copy strong { font-size: 18px; }
.brand-copy small { color: var(--muted); font-weight: 600; }
.top-nav { display: flex; gap: 10px; align-items: center; }
.top-nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 12px;
  border-radius: 999px;
}
.top-nav a:hover { background: rgba(255,255,255,.72); color: var(--text); }

.hero {
  max-width: var(--max);
  margin: 26px auto 0;
  padding: 28px 22px 54px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
  gap: 28px;
  align-items: center;
}
.hero-content h1 {
  font-size: clamp(40px, 6.8vw, 78px);
  line-height: .98;
  letter-spacing: -0.065em;
  margin: 12px 0 22px;
  max-width: 820px;
}
.hero-text {
  max-width: 650px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
  margin: 0 0 26px;
}
.eyebrow {
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  line-height: 1.3;
}
.eyebrow::before {
  content: '';
  width: 26px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--orange), var(--green));
}
.hero-actions, .inline-actions, .result-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn {
  border: 0;
  border-radius: 999px;
  padding: 13px 20px;
  font-weight: 800;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
}
.btn.small { min-height: 36px; padding: 8px 12px; font-size: 13px; }
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--blue); color: white; box-shadow: 0 12px 25px rgba(31,158,237,.25); }
.btn-primary:hover { background: var(--blue-dark); }
.btn-soft { background: white; color: var(--text); border: 1px solid var(--line); }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.65); }

.hero-card {
  background: rgba(255,255,255,.88);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 18px;
  transform: rotate(1.5deg);
}
.preview-toolbar { display: flex; gap: 8px; padding: 7px 4px 16px; }
.preview-toolbar span { width: 12px; height: 12px; border-radius: 999px; background: var(--orange); }
.preview-toolbar span:nth-child(2) { background: var(--green); }
.preview-toolbar span:nth-child(3) { background: var(--blue); }
.preview-card-main {
  min-height: 220px;
  border-radius: 24px;
  background: linear-gradient(135deg, #e4f6ff, #fff7e8 70%);
  border: 1px solid rgba(31,158,237,.14);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
}
.preview-card-main p { margin: 0 0 7px; color: var(--muted); font-weight: 700; }
.preview-card-main strong { font-size: 24px; letter-spacing: -0.04em; }
.mini-badge {
  align-self: flex-start;
  padding: 8px 12px;
  background: white;
  border-radius: 999px;
  color: var(--blue-dark);
  font-weight: 800;
  font-size: 12px;
}
.preview-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 12px; }
.preview-grid div {
  background: white;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
}
.preview-grid strong { display: block; margin-bottom: 3px; }
.preview-grid span { color: var(--muted); font-size: 13px; font-weight: 700; }

.examples-section, .scanner-section, .results-section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 38px 22px;
}
.section-heading { margin-bottom: 18px; }
.compact-heading { margin-bottom: 14px; }
.section-heading h2 {
  margin: 8px 0 8px;
  font-size: clamp(28px, 4vw, 48px);
  letter-spacing: -0.055em;
}
.section-heading p:not(.eyebrow), .results-heading-row p { color: var(--muted); line-height: 1.6; max-width: 720px; }
.example-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.example-card {
  text-align: left;
  background: rgba(255,255,255,.9);
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 22px;
  padding: 16px;
  box-shadow: 0 10px 25px rgba(33,45,58,.06);
  cursor: pointer;
  min-height: 160px;
}
.example-card:hover { transform: translateY(-2px); box-shadow: 0 18px 36px rgba(33,45,58,.1); }
.example-card span { color: var(--blue-dark); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; }
.example-card strong { display: block; margin: 10px 0 6px; font-size: 18px; }
.example-card small { color: var(--muted); display: block; word-break: break-all; }
.example-card p { color: var(--muted); font-size: 13px; line-height: 1.45; margin: 12px 0 0; }

.scanner-layout { display: grid; grid-template-columns: minmax(0, .92fr) minmax(360px, 1.08fr); gap: 20px; align-items: start; }
.panel {
  background: rgba(255,255,255,.9);
  border: 1px solid rgba(255,255,255,.8);
  box-shadow: 0 18px 40px rgba(33,45,58,.08);
  border-radius: var(--radius-lg);
  padding: 22px;
}
.field-label { font-weight: 800; margin-bottom: 9px; display: block; }
textarea, input, select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 18px;
  color: var(--text);
  outline: none;
}
textarea { resize: vertical; min-height: 176px; padding: 16px; line-height: 1.5; }
input, select { padding: 13px 14px; min-height: 48px; }
textarea:focus, input:focus, select:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(31,158,237,.12); }
.form-help { color: var(--muted); font-size: 13px; line-height: 1.5; margin: 10px 0 18px; }
.settings-details summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
  margin-bottom: 18px;
}
.settings-details summary::-webkit-details-marker { display: none; }
.settings-details summary span, .settings-block h3, .setup-card h3, .custom-viewports h4 { font-weight: 900; letter-spacing: -0.03em; }
.settings-details summary small, .setup-card p, .custom-viewports p { color: var(--muted); }
.settings-block { margin: 20px 0; }
.settings-block h3, .setup-card h3, .custom-viewports h4 { margin: 0 0 12px; }
.checks-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.checks-grid.compact { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.check-card {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 13px;
  background: #fff;
  cursor: pointer;
}
.check-card input { width: auto; min-height: auto; margin-top: 3px; accent-color: var(--blue); }
.check-card strong, .switch-row strong { display: block; font-size: 14px; margin-bottom: 3px; }
.check-card small, .switch-row small { color: var(--muted); font-size: 12px; line-height: 1.35; }
.two-col { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.switch-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  background: white;
}
.switch-row input { width: auto; min-height: auto; margin-top: 3px; accent-color: var(--blue); }
.config-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.config-grid label span { display: block; font-weight: 800; margin-bottom: 8px; font-size: 13px; }
.setup-card {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.7);
  border-radius: 24px;
  padding: 16px;
  margin: 18px 0;
}
.setup-card-header { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; }
.setup-card-header.mini { margin: 16px 0 10px; }
.setup-card-header h3, .setup-card-header h4 { margin: 0 0 6px; }
.setup-card-header p { margin: 0; font-size: 13px; line-height: 1.5; }
.setup-warning {
  background: var(--blue-soft);
  color: var(--blue-dark);
  padding: 10px 12px;
  border-radius: 16px;
  margin: 12px 0;
  font-size: 13px;
  font-weight: 800;
}
.setup-steps, #customViewports { display: grid; gap: 10px; margin-top: 12px; }
.setup-step { display: grid; grid-template-columns: 1.1fr 1.5fr 1.2fr .8fr auto; gap: 8px; align-items: center; }
.custom-viewport-row { display: grid; grid-template-columns: 1.3fr .8fr .8fr auto; gap: 8px; align-items: center; }
.icon-button {
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  background: white;
  border-radius: 14px;
  cursor: pointer;
  font-weight: 900;
  color: var(--muted);
}
.icon-button:hover { color: var(--red); }
.results-heading-row { display: flex; justify-content: space-between; gap: 18px; align-items: flex-end; }
.loading-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: 0 18px 40px rgba(33,45,58,.08);
  margin-bottom: 18px;
}
.loading-header { display: flex; gap: 14px; align-items: center; }
.loading-header p { margin: 4px 0 0; color: var(--muted); }
.spinner {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 4px solid rgba(31,158,237,.16);
  border-top-color: var(--blue);
  animation: spin 1s linear infinite;
  flex: 0 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }
.progress-track { height: 9px; background: rgba(31,158,237,.12); border-radius: 999px; overflow: hidden; margin: 18px 0; }
.progress-track span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--blue), var(--green)); border-radius: 999px; transition: width .35s ease; }
.progress-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px; }
.progress-item { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; background: rgba(247,245,239,.75); border-radius: 14px; padding: 9px; }
.progress-item p { margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.progress-item span { width: 10px; height: 10px; border-radius: 999px; background: #d8dde2; flex: 0 0 auto; }
.progress-item.active span { background: var(--orange); box-shadow: 0 0 0 5px rgba(255,182,77,.18); }
.progress-item.done span { background: var(--green); }
.empty-state, .error-state, .share-panel, .llm-panel {
  background: rgba(255,255,255,.9);
  border: 1px solid rgba(255,255,255,.8);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 18px 40px rgba(33,45,58,.08);
  margin-bottom: 18px;
}
.empty-state { text-align: center; }
.empty-icon { width: 58px; height: 58px; display: inline-grid; place-items: center; border-radius: 22px; background: var(--green-soft); color: #228764; font-weight: 900; font-size: 26px; }
.empty-state p, .error-state p, .share-panel p, .llm-panel p { color: var(--muted); line-height: 1.6; }
.error-state { background: var(--red-soft); border-color: rgba(255,107,107,.25); color: #9f2929; }
.share-panel, .llm-panel { display: grid; grid-template-columns: .85fr 1.15fr; gap: 16px; align-items: start; }
.share-panel h3, .llm-panel h3 { margin: 8px 0; }
.share-actions { display: grid; grid-template-columns: 1fr auto auto; gap: 8px; align-items: center; }
.llm-panel textarea { min-height: 170px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; }
.results-grid { display: grid; gap: 18px; }
.result-card-header { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; margin-bottom: 16px; }
.result-card-header h3 { margin: 5px 0 6px; font-size: 26px; letter-spacing: -0.04em; }
.result-card-header a { color: var(--blue-dark); font-size: 13px; font-weight: 700; word-break: break-all; }
.result-index { color: var(--muted); font-weight: 800; font-size: 12px; text-transform: uppercase; letter-spacing: .07em; }
.score-pill { padding: 9px 12px; border-radius: 999px; background: var(--blue-soft); color: var(--blue-dark); font-weight: 900; }
.quick-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.quick-facts div { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 14px; }
.quick-facts strong { display: block; font-size: 20px; }
.quick-facts span { color: var(--muted); font-size: 12px; font-weight: 800; }
.mini-section { border-top: 1px solid var(--line); padding-top: 16px; margin-top: 16px; }
.mini-section h4 { margin: 0 0 12px; }
.mini-section.success { background: var(--green-soft); border: 0; border-radius: 18px; padding: 14px; }
.mini-section.success p { color: #228764; margin: 0; }
.issue-list { display: grid; gap: 8px; padding: 0; margin: 0; list-style: none; }
.issue-list li { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 12px; }
.issue-list strong { display: block; margin-bottom: 4px; }
.issue-list span { color: var(--muted); font-size: 13px; line-height: 1.45; }
.info-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.info-grid div { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 12px; }
.info-grid strong { display: block; margin-bottom: 5px; }
.info-grid span { color: var(--muted); word-break: break-word; font-size: 13px; }
.screenshot-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.screenshot-card { margin: 0; border: 1px solid var(--line); background: #fff; border-radius: 18px; overflow: hidden; }
.screenshot-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; background: #edf1f5; }
.screenshot-card figcaption { padding: 12px; }
.screenshot-card strong { display: block; font-size: 13px; line-height: 1.35; }
.screenshot-card span { display: block; color: var(--muted); font-size: 12px; margin: 4px 0 10px; }
.image-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.screenshot-card.error { padding: 12px; color: #9f2929; background: var(--red-soft); }
.image-placeholder { min-height: 150px; display: grid; place-items: center; color: var(--muted); background: #edf1f5; }
.image-modal { border: 0; padding: 0; background: transparent; max-width: min(96vw, 1180px); width: 100%; }
.image-modal::backdrop { background: rgba(15,24,32,.72); }
.modal-card { background: #fff; border-radius: 26px; padding: 18px; position: relative; box-shadow: var(--shadow); }
.modal-close { position: absolute; right: 12px; top: 12px; border: 0; background: #f1f4f6; width: 38px; height: 38px; border-radius: 999px; font-size: 24px; cursor: pointer; }
.modal-heading { display: flex; justify-content: space-between; align-items: center; gap: 44px; margin-bottom: 14px; }
.modal-heading h3 { margin: 0; font-size: 18px; }
.modal-card img { width: 100%; max-height: 76vh; object-fit: contain; border-radius: 18px; background: #edf1f5; }
.footer {
  max-width: var(--max);
  margin: 20px auto 0;
  padding: 28px 22px 42px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  font-weight: 700;
}

@media (max-width: 980px) {
  .hero, .scanner-layout, .share-panel, .llm-panel { grid-template-columns: 1fr; }
  .hero-card { transform: none; }
  .example-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .screenshot-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 720px) {
  .site-header, .results-heading-row, .footer { flex-direction: column; align-items: flex-start; }
  .top-nav { width: 100%; overflow-x: auto; }
  .hero-content h1 { font-size: 42px; }
  .checks-grid, .checks-grid.compact, .two-col, .config-grid, .quick-facts, .info-grid, .progress-list, .screenshot-grid, .example-grid, .share-actions { grid-template-columns: 1fr; }
  .setup-step, .custom-viewport-row { grid-template-columns: 1fr; }
  .panel, .empty-state, .error-state, .share-panel, .llm-panel { padding: 18px; border-radius: 24px; }
}

.optional-text { color: var(--muted); font-size: 12px; font-weight: 700; }
.reference-loading { grid-column: 1 / -1; background: rgba(255,255,255,.9); border: 1px solid var(--line); border-radius: 18px; padding: 18px; color: var(--muted); font-weight: 700; }
.reference-card { display: flex; flex-direction: column; }
.reference-card .reference-actions { margin-top: auto; display: flex; flex-wrap: wrap; gap: 8px; padding-top: 14px; }
.error-state.inline { grid-column: 1 / -1; }
.complete-card { display: flex; gap: 16px; align-items: flex-start; }
.complete-icon { width: 52px; height: 52px; border-radius: 18px; display: grid; place-items: center; background: var(--green-soft); color: var(--green); font-weight: 900; font-size: 24px; flex: 0 0 auto; }
.complete-card h3 { margin: 4px 0 8px; font-size: 28px; letter-spacing: -.04em; }
.complete-card p { margin: 0 0 6px; color: var(--muted); }
.muted { color: var(--muted); }
.progress-item small { display: block; color: var(--muted); margin-top: 2px; }
.progress-item.error span { background: var(--red); }
.progress-item.error p { color: var(--red); }
.report-body { background: var(--bg); }
.report-page { max-width: var(--max); margin: 0 auto; padding: 28px 22px 60px; }
.report-loading { margin-top: 34px; }
.report-hero { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; }
.report-hero h1 { margin: 8px 0 12px; font-size: clamp(34px, 6vw, 64px); line-height: 1; letter-spacing: -.06em; }
.report-hero p { color: var(--muted); margin: 0; }
.report-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.report-pages { display: grid; gap: 18px; }
.page-report-card { margin: 0; }
.report-shot-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.llm-textarea { width: 100%; min-height: 300px; border: 1px solid var(--line); border-radius: 18px; padding: 16px; color: var(--text); background: #fff; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; line-height: 1.5; resize: vertical; }
@media (max-width: 760px) {
  .report-hero { flex-direction: column; }
  .report-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media print {
  .site-header, .top-nav, .result-actions, .image-actions, .modal-close { display: none !important; }
  body, .report-body { background: #fff !important; }
  .panel, .result-card { box-shadow: none !important; break-inside: avoid; }
}