/* LegalFlow_NHS — light/white theme */
:root {
  --bg: #ffffff;
  --surface: #f8fafc;
  --border: #e2e8f0;
  --line: #cbd5e1;
  --text: #1e293b;
  --muted: #64748b;
  --primary: #1f3a5f;
  --primary-2: #2c5282;
  --accent: #c0392b;
  --accent-2: #e67e22;
  --success: #16a085;
  --warn: #f39c12;
  --info: #3498db;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  font-family: -apple-system, "Segoe UI", "Malgun Gothic", "Noto Sans KR", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 14px;
}

#app { min-height: 100vh; display: flex; flex-direction: column; }

/* HEADER */
.hdr {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 24px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.hdr-left { display: flex; align-items: center; gap: 14px; }
.logo { font-size: 36px; }
.hdr h1 { margin: 0; font-size: 22px; color: var(--primary); }
.hdr h1 .brand { color: var(--accent); font-weight: 800; }
.hdr .sub { margin: 2px 0 0; color: var(--muted); font-size: 12px; }
.hdr-right select {
  padding: 8px 12px; border: 1px solid var(--line); border-radius: 6px;
  background: var(--bg); color: var(--text); font-size: 13px; cursor: pointer;
  min-width: 320px;
}

/* ROLE BAR */
.role-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.role-label { font-weight: 600; color: var(--primary); }
.role-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  border: 1.5px solid var(--line); border-radius: 24px;
  background: var(--bg); color: var(--text);
  font-size: 13px; cursor: pointer;
  transition: all 0.15s;
}
.role-btn:hover { border-color: var(--primary); }
.role-btn.active {
  background: var(--primary); color: white; border-color: var(--primary);
}
.role-icon { font-size: 16px; }

/* HERO */
.hero {
  padding: 24px;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border-bottom: 1px solid var(--border);
}
.hero h2 { margin: 0 0 6px; font-size: 22px; color: var(--primary); }
.hero p { margin: 0 0 14px; color: var(--muted); }
.hero-stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
.stat-chip {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px 14px;
  display: flex; flex-direction: column; gap: 2px;
}
.stat-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 22px; font-weight: 700; color: var(--primary); }
.stat-desc { font-size: 11px; color: var(--muted); }

/* LAYOUT */
.layout { display: grid; grid-template-columns: 320px 1fr; flex: 1; min-height: 0; }

/* SIDE */
.side {
  background: var(--surface); border-right: 1px solid var(--border);
  padding: 20px; overflow-y: auto;
}
.side h3 { margin: 0 0 12px; font-size: 14px; color: var(--primary); }
.upload-area, .prompt-area, .upload-attachments { margin-bottom: 16px; }
.up-label {
  display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px;
  font-weight: 600;
}
.up-hint { font-size: 11px; color: var(--muted); margin-top: 4px; }
input[type="file"] {
  width: 100%; padding: 8px; border: 1px dashed var(--line); border-radius: 6px;
  background: var(--bg); font-size: 12px;
}
textarea {
  width: 100%; padding: 10px; border: 1px solid var(--line); border-radius: 6px;
  font-family: inherit; font-size: 13px; resize: vertical;
  background: var(--bg); color: var(--text);
}
textarea:focus { outline: none; border-color: var(--primary); }

.primary-btn {
  width: 100%; padding: 12px;
  background: var(--primary); color: white;
  border: none; border-radius: 6px;
  font-weight: 700; font-size: 14px; cursor: pointer;
  transition: background 0.15s;
}
.primary-btn:hover { background: var(--primary-2); }
.primary-btn:disabled { background: var(--muted); cursor: not-allowed; }

.upload-result {
  margin-top: 14px; font-size: 12px; color: var(--muted);
}
.upload-result .ufile {
  border-left: 3px solid var(--info); padding: 6px 8px; margin-top: 6px;
  background: var(--bg); border-radius: 4px;
}

/* MAIN */
.main { padding: 0; overflow-y: auto; }
.tabs {
  display: flex; gap: 4px; padding: 0 24px;
  background: var(--bg); border-bottom: 1px solid var(--border);
  overflow-x: auto; position: sticky; top: 0; z-index: 50;
}
.tab {
  padding: 14px 16px;
  background: transparent;
  border: none; border-bottom: 3px solid transparent;
  color: var(--muted); font-size: 13px; font-weight: 600; cursor: pointer;
  white-space: nowrap;
}
.tab:hover { color: var(--primary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-content { display: none; padding: 24px; }
.tab-content.active { display: block; }
.tab-content h3 { margin: 0 0 16px; color: var(--primary); }

/* OVERVIEW */
.overview-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 18px; margin-bottom: 14px;
}
.overview-card h4 { margin: 0 0 8px; color: var(--primary); }
.law-list { display: flex; flex-wrap: wrap; gap: 6px; }
.law-chip {
  padding: 4px 10px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; font-size: 12px; color: var(--text);
}

/* SMOKING GUN GRID */
.sg-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 14px; }
.sg-card {
  background: var(--bg); border: 2px solid var(--accent); border-radius: 10px;
  padding: 16px; position: relative;
}
.sg-card.tier-A { border-color: var(--accent-2); }
.sg-card.tier-B { border-color: var(--info); }
.sg-id {
  display: inline-block; padding: 4px 10px;
  background: var(--accent); color: white; border-radius: 4px;
  font-weight: 700; font-size: 12px; margin-bottom: 8px;
}
.tier-A .sg-id { background: var(--accent-2); }
.tier-B .sg-id { background: var(--info); }
.sg-title { font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.sg-desc { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.sg-meta { display: flex; gap: 8px; flex-wrap: wrap; font-size: 11px; }
.sg-meta span {
  background: var(--surface); padding: 2px 8px; border-radius: 10px;
  border: 1px solid var(--border);
}

/* CONTRADICTIONS */
.cont-row {
  display: grid; grid-template-columns: 60px 1fr 30px 1fr 60px;
  gap: 10px; align-items: center;
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px; margin-bottom: 10px;
}
.cont-row.tier-S { border-left: 4px solid var(--accent); }
.cont-row.tier-A { border-left: 4px solid var(--accent-2); }
.cont-row .cid { font-weight: 700; color: var(--primary); text-align: center; }
.cont-row .cseparator { font-size: 18px; text-align: center; color: var(--muted); }
.cont-row .ctier {
  text-align: center; padding: 4px;
  background: var(--surface); border-radius: 4px; font-weight: 700; font-size: 11px;
}
.cont-row .ca, .cont-row .cb { font-size: 13px; }
.cont-row .meaning {
  grid-column: 1 / -1; padding-top: 8px; margin-top: 8px;
  border-top: 1px dashed var(--border);
  font-size: 12px; color: var(--success); font-weight: 600;
}

/* TIMELINE LIST */
.tl-row {
  display: grid; grid-template-columns: 140px 1fr 40px;
  gap: 12px; align-items: start;
  padding: 10px 12px; margin-bottom: 4px;
  background: var(--bg); border-left: 3px solid var(--info); border-radius: 4px;
}
.tl-row.weight-10 { border-left-color: var(--accent); }
.tl-row.weight-9, .tl-row.weight-8 { border-left-color: var(--accent-2); }
.tl-row .tl-date { font-weight: 600; color: var(--primary); font-size: 12px; }
.tl-row .tl-title { font-size: 13px; }
.tl-row .tl-desc { color: var(--muted); font-size: 11px; margin-top: 2px; }
.tl-row .tl-tag { font-size: 10px; }

/* STRATEGY BOX */
.strat-card {
  background: var(--bg); border: 2px solid var(--primary); border-radius: 10px;
  padding: 24px; margin-bottom: 14px;
}
.strat-head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.strat-head .icon { font-size: 36px; }
.strat-head h2 { margin: 0; color: var(--primary); }
.strat-head .headline { color: var(--muted); font-size: 14px; margin-top: 2px; }
.strat-list { padding-left: 20px; }
.strat-list li { margin-bottom: 6px; line-height: 1.6; }
.strat-risk {
  background: #fef3c7; border-left: 4px solid var(--warn); padding: 12px;
  margin-top: 14px; border-radius: 4px;
}
.strat-actions { margin-top: 16px; }
.strat-actions table { width: 100%; border-collapse: collapse; }
.strat-actions th, .strat-actions td {
  padding: 8px 12px; border-bottom: 1px solid var(--border); text-align: left; font-size: 13px;
}
.strat-actions th { background: var(--surface); color: var(--primary); }
.strat-actions td:first-child { width: 80px; font-weight: 600; color: var(--primary); }

/* MODAL */
.modal { position: fixed; inset: 0; z-index: 1000; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.4); }
.modal-body {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: var(--bg); border-radius: 10px;
  width: 90%; max-width: 720px; max-height: 80vh;
  display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.modal-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.modal-head h3 { margin: 0; color: var(--primary); }
.modal-head button {
  border: none; background: transparent; font-size: 20px; cursor: pointer;
  color: var(--muted);
}
.modal-content { padding: 20px; overflow-y: auto; }

.dl-btn {
  display: inline-block; margin-top: 14px; padding: 10px 18px;
  background: var(--success); color: white; border-radius: 6px;
  text-decoration: none; font-weight: 600;
}

/* FOOTER */
.ftr {
  padding: 14px 24px;
  background: var(--surface); border-top: 1px solid var(--border);
  font-size: 11px; color: var(--muted);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}

/* SVG / ONTOLOGY */
.legend { padding: 14px 0; display: flex; gap: 14px; font-size: 12px; flex-wrap: wrap; }
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.node-label { font-size: 11px; pointer-events: none; }
.link-line { stroke-opacity: 0.5; }

/* Responsive */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .side { border-right: none; border-bottom: 1px solid var(--border); }
}