:root {
  --bg: #f4f3ef;
  --paper: #fffef9;
  --ink: #161616;
  --muted: #6e6c66;
  --line: #d9d6cd;
  --accent: #176b52;
  --accent-soft: #dceee8;
  --warning: #8a4b08;
  --warning-soft: #fff1dc;
  --error: #9d2c2c;
  --error-soft: #fae4e4;
  --shadow: 0 18px 50px rgba(29, 28, 24, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, Pretendard, "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

button, textarea { font: inherit; }
a { color: inherit; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1180px;
  margin: 0 auto;
  padding: 26px 24px;
}

.brand { font-weight: 760; text-decoration: none; letter-spacing: -0.02em; }
nav { display: flex; gap: 18px; font-size: 14px; }
nav a { text-decoration: none; color: var(--muted); }
nav a:hover { color: var(--ink); }
nav a[data-disabled="true"] { pointer-events: none; }

main { max-width: 1180px; margin: 0 auto; padding: 56px 24px 100px; }

.hero { max-width: 850px; margin-bottom: 56px; }
.eyebrow, .step, .result-label {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

h1 {
  margin: 0;
  font-size: clamp(44px, 7vw, 86px);
  line-height: 1.02;
  letter-spacing: -0.065em;
  font-weight: 780;
}
h1 span { color: var(--accent); }
.lede { max-width: 690px; margin: 26px 0 24px; font-size: 19px; color: #45433e; }
.boundary-row { display: flex; flex-wrap: wrap; gap: 8px; }
.boundary-row span {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.45);
  color: #4f4d48;
  font-size: 12px;
}

.workspace { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 16px; align-items: stretch; }
.panel {
  min-height: 570px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 26px; }
h2 { margin: 0; font-size: 25px; letter-spacing: -0.035em; }
.status, .confidence {
  padding: 6px 9px;
  border-radius: 7px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11px;
  font-weight: 750;
}
.status.offline { background: var(--warning-soft); color: var(--warning); }

label { display: block; margin-bottom: 8px; font-size: 13px; font-weight: 700; }
textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  padding: 14px;
  outline: none;
}
textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.examples { display: flex; flex-wrap: wrap; gap: 7px; margin: 12px 0 24px; }
.examples button, .feedback-row button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  padding: 8px 10px;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
}
.examples button:hover, .feedback-row button:hover { border-color: var(--ink); color: var(--ink); }
.primary {
  width: 100%;
  border: 0;
  border-radius: 10px;
  background: var(--ink);
  color: white;
  padding: 14px 18px;
  font-weight: 750;
  cursor: pointer;
}
.primary:hover { background: var(--accent); }
.primary:disabled { opacity: .55; cursor: wait; }
.fine-print { color: var(--muted); font-size: 11px; }

.result-panel { position: relative; }
.empty-state, .loading {
  display: grid;
  place-items: center;
  min-height: 370px;
  text-align: center;
  color: var(--muted);
}
.empty-mark { margin-bottom: 12px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 48px; color: var(--line); }
.answer { margin: 0; font-size: 17px; font-weight: 560; }
article section { margin: 0 0 24px; }
.citation-list { display: grid; gap: 8px; }
.citation {
  border-left: 3px solid var(--accent);
  background: #f6f8f5;
  padding: 11px 13px;
  font-size: 12px;
}
.citation strong { display: block; margin-bottom: 4px; }
.review-box, .action-box, .error {
  border-radius: 10px;
  padding: 14px;
}
.review-box { background: var(--warning-soft); color: #67400e; }
.action-box { display: flex; justify-content: space-between; gap: 18px; background: #f0efeb; }
.action-box > span { white-space: nowrap; align-self: flex-start; padding: 5px 7px; border-radius: 5px; background: var(--warning-soft); color: var(--warning); font-size: 10px; font-weight: 800; }
.action-label { font-weight: 750; }
.feedback { padding-top: 16px; border-top: 1px solid var(--line); }
.feedback-row { display: flex; gap: 8px; margin-bottom: 9px; }
.error { background: var(--error-soft); color: var(--error); }

.method { display: grid; grid-template-columns: .7fr 1.3fr; gap: 40px; margin-top: 90px; }
.method ol { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.method li { display: grid; grid-template-columns: 130px 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.method li span { color: var(--muted); }

footer { max-width: 1180px; margin: 0 auto; padding: 26px 24px 60px; color: var(--muted); font-size: 12px; }
.hidden { display: none !important; }

@media (max-width: 820px) {
  main { padding-top: 30px; }
  .workspace, .method { grid-template-columns: 1fr; }
  .panel { min-height: auto; }
  .method { margin-top: 64px; }
  .site-header nav { display: none; }
}

@media (prefers-reduced-motion: no-preference) {
  .loading::after { content: ""; width: 24px; height: 24px; margin-top: 18px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
  @keyframes spin { to { transform: rotate(360deg); } }
}
/* Inspectable replay and evidence controls */
.data-warning { margin: -2px 0 10px; color: var(--error); font-size: 11px; }
.replay-banner {
  margin: -6px 0 22px;
  border: 1px solid #e0b979;
  border-radius: 9px;
  background: var(--warning-soft);
  color: #67400e;
  padding: 10px 12px;
  font-size: 12px;
  font-weight: 700;
}
.citation span { display: block; }
.source-link { display: inline-block; margin-top: 8px; color: var(--accent); font-weight: 700; text-decoration: none; }
.source-link:hover { text-decoration: underline; }
.authority-summary { margin: 10px 0 0; color: var(--muted); font-size: 11px; }