:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-muted: #edf1f5;
  --text: #17202a;
  --muted: #556474;
  --line: #ccd5df;
  --accent: #2458a6;
  --accent-strong: #173f7a;
  --accent-soft: #e5eefc;
  --danger: #a73a31;
  --warning: #8a5a10;
  --focus: #3d73c4;
  --radius: 14px;
  --shadow: 0 18px 45px rgb(37 62 87 / 0.10);
  font-family: Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  font-synthesis: none;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #10161d;
    --surface: #17212b;
    --surface-muted: #202d39;
    --text: #edf3f8;
    --muted: #b3c0cc;
    --line: #3a4a59;
    --accent: #78a7ea;
    --accent-strong: #a9c9f5;
    --accent-soft: #1c3453;
    --danger: #ff9c92;
    --warning: #edbd6f;
    --focus: #9dc4fa;
    --shadow: 0 18px 45px rgb(0 0 0 / 0.28);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:active { transform: translateY(1px); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 10; padding: .7rem 1rem; background: var(--surface); border-radius: var(--radius); }
.skip-link:focus { top: 1rem; }

.site-header {
  height: 72px; max-width: 1240px; margin: 0 auto; padding: 0 28px;
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
}
.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; font-weight: 800; white-space: nowrap; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: var(--radius); background: var(--accent); color: #f8fbff; }
.site-header nav { display: flex; align-items: center; gap: 1.5rem; white-space: nowrap; }
.site-header nav a { color: var(--muted); text-decoration: none; font-size: .94rem; font-weight: 650; }
.site-header nav a:hover { color: var(--text); }

main { overflow: clip; }
.hero {
  min-height: calc(100dvh - 72px); max-width: 1240px; margin: 0 auto; padding: 64px 28px 80px;
  display: grid; grid-template-columns: minmax(0, .86fr) minmax(480px, 1.14fr); align-items: center; gap: 7vw;
}
.hero-copy { max-width: 610px; }
.eyebrow { margin: 0 0 1rem; color: var(--accent); font-size: .78rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
h1, h2, h3, p { text-wrap: pretty; }
h1 { margin: 0; font-size: clamp(2.55rem, 5.3vw, 3.75rem); line-height: 1.06; letter-spacing: -.055em; }
.hero-lead { max-width: 34rem; margin: 1.6rem 0 1rem; color: var(--muted); font-size: 1.12rem; }
.text-link { color: var(--accent); font-weight: 750; text-underline-offset: 5px; }

.search-panel { padding: clamp(1.4rem, 3vw, 2.4rem); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.search-panel h2 { margin: 0 0 1.4rem; font-size: 1.35rem; }
.search-panel form { display: grid; grid-template-columns: minmax(140px, .65fr) minmax(220px, 1.35fr); gap: 1rem; }
.search-panel .primary-button { grid-column: 1 / -1; }
.form-field { display: flex; flex-direction: column; gap: .45rem; }
.form-field label { font-size: .9rem; font-weight: 750; }
.form-field small, .form-note { color: var(--muted); }
input, select, textarea {
  width: 100%; min-height: 48px; padding: .72rem .86rem; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: var(--radius);
}
textarea { resize: vertical; }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: .85; }
.primary-button, .secondary-button {
  min-height: 48px; padding: .72rem 1.15rem; border-radius: var(--radius); font-weight: 800; white-space: nowrap;
}
.primary-button { border: 1px solid var(--accent); background: var(--accent); color: #f8fbff; }
.secondary-button { border: 1px solid var(--line); background: var(--surface); color: var(--text); }
.form-note { margin: 1rem 0 .35rem; font-size: .88rem; }
.integration-status { color: var(--muted); font-size: .82rem; }

.result-section, .method-section, .reports-section, .consult-section { max-width: 1184px; margin: 0 auto; padding: 88px 28px; }
.result-shell { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.result-head { padding: 2rem; display: grid; grid-template-columns: 1fr auto; gap: 1.5rem; align-items: start; border-bottom: 1px solid var(--line); }
.result-head h2 { margin: .2rem 0 .35rem; font-size: clamp(1.6rem, 3vw, 2.35rem); }
.result-head p { margin: 0; color: var(--muted); }
.signal-number { min-width: 160px; text-align: right; }
.signal-number strong { display: block; font-size: 2.2rem; line-height: 1.1; }
.signal-number span { color: var(--muted); font-size: .82rem; }
.result-body { padding: 2rem; display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; }
.result-body h3 { margin: 0 0 1rem; }
.evidence-list, .source-list, .account-list { display: grid; gap: .75rem; }
.evidence-item, .source-item, .account-item { padding: 1rem; background: var(--surface-muted); border-radius: var(--radius); }
.evidence-item strong, .source-item strong { display: block; margin-bottom: .25rem; }
.evidence-item p, .source-item p, .account-item p { margin: 0; color: var(--muted); font-size: .92rem; }
.evidence-meta { margin-top: .55rem; color: var(--muted); font-size: .78rem; }
.uncertainty { margin: 0; padding: 1rem; border-left: 4px solid var(--warning); background: var(--surface-muted); border-radius: var(--radius); }
.error-state, .loading-state, .empty-state { padding: 1.5rem; color: var(--muted); background: var(--surface-muted); border-radius: var(--radius); }
.error-state { color: var(--danger); }
.loading-state { animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .55; } }

.method-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 8vw; align-items: start; }
.method-section h2, .reports-section h2, .consult-section h2 { margin: 0 0 1rem; font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1.12; letter-spacing: -.035em; }
.method-section > div > p, .section-heading p, .consult-copy p { color: var(--muted); max-width: 44rem; }
.principles { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.principles article { min-height: 150px; padding: 1.25rem; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.principles article:nth-child(2), .principles article:nth-child(3) { background: var(--accent-soft); }
.principles p { margin: .55rem 0 0; color: var(--muted); }

.section-heading { margin-bottom: 2rem; }
.report-list { display: grid; grid-template-columns: 1.35fr .65fr; gap: 1rem; }
.report-card { padding: 1.5rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.report-card:nth-child(3n + 1) { grid-row: span 2; }
.report-card h3 { margin: .6rem 0; }
.report-card p { color: var(--muted); }
.verdict { display: inline-block; color: var(--accent); font-size: .78rem; font-weight: 800; }
#report-detail { margin-top: 2rem; padding: 2rem; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.detail-evidence { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.5rem 0; }
.detail-evidence article { padding: 1rem; border-radius: var(--radius); background: var(--surface-muted); }
.appeal-form { margin-top: 2rem; max-width: 680px; }

.consult-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 8vw; align-items: start; }
.stack-form { display: grid; gap: 1rem; padding: 2rem; border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.consent-row { display: grid; grid-template-columns: 22px 1fr; gap: .65rem; align-items: start; font-size: .9rem; }
.consent-row input { min-height: 20px; height: 20px; margin-top: .15rem; }
.honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { min-height: 1.5rem; margin: 0; color: var(--accent); }

footer { max-width: 1184px; margin: 0 auto; padding: 48px 28px 64px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
footer p { margin: .25rem 0; }

.admin-main { max-width: 1184px; margin: 0 auto; padding: 48px 28px 96px; }
.admin-auth { max-width: 560px; margin: 3rem auto; padding: 2rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.admin-auth form { display: grid; gap: 1rem; }
.admin-shell { display: grid; gap: 2rem; }
.admin-summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.summary-item { padding: 1rem; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.summary-item strong { display: block; font-size: 1.8rem; }
.admin-section { padding: 1.5rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.admin-section h2 { margin-top: 0; }
.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.inquiry-item { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.inquiry-item:last-child { border-bottom: 0; }
.review-form { display: grid; grid-template-columns: 150px 1fr; gap: .75rem; margin-top: .8rem; }
.review-form textarea, .review-form button, .review-form .reviewer { grid-column: 2; }
.json-hint { font-family: ui-monospace, monospace; font-size: .82rem; }

@media (max-width: 900px) {
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 3rem; padding-top: 48px; }
  .result-body, .method-section, .consult-section { grid-template-columns: 1fr; gap: 2.5rem; }
  .report-list { grid-template-columns: 1fr; }
  .report-card:nth-child(3n + 1) { grid-row: auto; }
  .admin-summary { grid-template-columns: 1fr 1fr; }
  .admin-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .site-header { height: auto; min-height: 64px; padding: 14px 18px; }
  .site-header nav a:not(:last-child) { display: none; }
  .hero, .result-section, .method-section, .reports-section, .consult-section, .admin-main { padding-left: 18px; padding-right: 18px; }
  .hero { padding-top: 36px; padding-bottom: 56px; }
  h1 { font-size: clamp(2.35rem, 12vw, 3.4rem); }
  .search-panel form, .form-grid, .principles, .detail-evidence { grid-template-columns: 1fr; }
  .result-head { grid-template-columns: 1fr; }
  .signal-number { text-align: left; }
  .result-body { padding: 1.25rem; }
  .admin-summary { grid-template-columns: 1fr; }
  .review-form { grid-template-columns: 1fr; }
  .review-form textarea, .review-form button, .review-form .reviewer { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}