:root {
  --bg: #f6f3f1;
  --surface: #ffffff;
  --border: #e2dad5;
  --text: #181412;
  --muted: #635751;
  --primary: #9b4222;
  --primary-hover: #7d3318;
  --accent: #ebae67;
  --danger: #c63d3d;
  --warning: #b97714;
  --success: #1f7a4c;
  --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Plus Jakarta Sans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 14px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-shell {
  display: grid;
  grid-template-columns: 248px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #181412;
  color: #f0e8e3;
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.brand-box {
  padding: 6px 10px;
}
.brand-title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #ffffff;
}
.brand-sub {
  font-size: 11px;
  color: #93aab3;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 2px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: #c8d6dc;
  font-weight: 600;
  transition: background 0.15s, color 0.15s;
}
.nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  text-decoration: none;
}
.nav-link.active {
  background: var(--primary);
  color: #ffffff;
}

.sidebar-footer {
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 14px;
  font-size: 12px;
  color: #a9bcc3;
}
.sidebar-user-name { font-weight: 700; color: #ffffff; }
.sidebar-user-role { font-size: 11px; text-transform: uppercase; opacity: 0.75; margin-bottom: 10px; }

.main-area {
  padding: 26px 32px;
  max-width: 1480px;
  width: 100%;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.page-header h1 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.page-subtitle {
  color: var(--muted);
  font-size: 13.5px;
  margin-top: 2px;
}

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 15px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 13.5px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); text-decoration: none; }
.btn-accent { background: var(--accent); color: #16220a; }
.btn-accent:hover { filter: brightness(0.95); }
.btn-outline { background: #fff; border-color: var(--border); color: var(--text); }
.btn-outline:hover { background: #f1f5f6; text-decoration: none; }
.btn-danger { background: #fff; border-color: #ebc9c9; color: var(--danger); }
.btn-danger:hover { background: #fdf2f2; }
.btn-sm { padding: 6px 11px; font-size: 12.5px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 18px;
}
.card-title {
  font-size: 15.5px;
  font-weight: 700;
  margin-bottom: 12px;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}
.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.kpi-label { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.kpi-val { font-size: 28px; font-weight: 800; margin-top: 4px; color: var(--text); }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge-ready { background: #e3f5ec; color: var(--success); }
.badge-awaiting_approval { background: #fff4df; color: #9c6208; }
.badge-researching, .badge-generating_images, .badge-compiling { background: #e1f1f4; color: var(--primary); }
.badge-failed { background: #fde8e8; color: var(--danger); }
.badge-draft { background: #eceff1; color: var(--muted); }
.badge-mode { background: #eef3f5; color: #36474f; font-weight: 600; }

.table-wrap { overflow-x: auto; }
table.data-table { width: 100%; border-collapse: collapse; }
table.data-table th, table.data-table td {
  padding: 12px 10px;
  border-bottom: 1px solid #edf1f3;
  text-align: left;
  vertical-align: middle;
}
table.data-table th {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.form-grid { display: grid; gap: 14px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
label.field-label { display: block; font-weight: 700; font-size: 13px; margin-bottom: 6px; }
input[type="text"], input[type="email"], input[type="password"], input[type="url"], select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid #cad5da;
  border-radius: 8px;
  font-family: inherit;
  font-size: 13.5px;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(43, 110, 120, 0.2);
  border-color: var(--primary);
}
textarea.code-editor {
  font-family: 'Cascadia Code', Consolas, monospace;
  font-size: 12.2px;
  line-height: 1.45;
}

.choice-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 10px;
}
.choice-card {
  border: 1.5px solid var(--border);
  border-radius: 9px;
  padding: 12px 14px;
  cursor: pointer;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: #fff;
}
.choice-card:has(input:checked) {
  border-color: var(--primary);
  background: #f1f8f9;
}
.choice-card strong { display: block; font-size: 13.5px; }
.choice-card span { display: block; font-size: 12px; color: var(--muted); }

.alert {
  padding: 11px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 14px;
  border: 1px solid transparent;
}
.alert-error { background: #fdecec; border-color: #f3c2c2; color: #9c2323; }
.alert-warn { background: #fff6e4; border-color: #efd299; color: #855208; }
.alert-info { background: #e8f4f6; border-color: #bedee4; color: #1f535b; }
.alert-success { background: #e6f6ee; border-color: #b7e4cc; color: #19623c; }

.detail-split {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 18px;
  align-items: start;
}

.tabs-bar {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
}
.tab-btn {
  background: none;
  border: none;
  padding: 9px 14px;
  font-family: inherit;
  font-weight: 700;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.asset-card {
  display: grid;
  grid-template-columns: 115px 1fr;
  gap: 14px;
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 12px;
  margin-bottom: 10px;
  background: #fcfdfe;
}
.asset-thumb {
  width: 115px;
  height: 100px;
  border-radius: 6px;
  background: #e7eef1;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  padding: 6px;
}
.asset-thumb img { width: 100%; height: 100%; object-fit: cover; }

.pdf-viewer-frame {
  width: 100%;
  height: 760px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #525659;
}

.page-outline-item {
  border: 1px solid #e6ecef;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 8px;
  background: #fafcfd;
}

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: linear-gradient(135deg, #120e0c 0%, #3d1d12 58%, #181412 100%);
}
.login-card {
  width: 100%;
  max-width: 410px;
  background: #fff;
  border-radius: 14px;
  padding: 32px 28px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

@media (max-width: 1080px) {
  .detail-split { grid-template-columns: 1fr; }
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; align-items: center; }
  .sidebar-footer { margin-top: 0; border-top: none; padding-top: 0; }
}