:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #22263a;
  --border: #2d3148;
  --accent: #5b6af0;
  --accent-hover: #7b8af8;
  --text: #e2e6f0;
  --text-muted: #8892a4;
  --success: #22c55e;
  --warn: #f59e0b;
  --error: #ef4444;
  --radius: 8px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Nav */
.navbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 32px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-brand a { font-size: 1.1rem; font-weight: 700; color: var(--text); text-decoration: none; }
.nav-links { display: flex; gap: 20px; flex: 1; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-size: 14px; transition: color .15s; }
.nav-links a:hover { color: var(--text); }

/* Container */
.container { max-width: 960px; margin: 0 auto; padding: 32px 20px; flex: 1; }

/* Hero */
.hero { text-align: center; padding: 60px 20px 40px; }
.hero h1 { font-size: 2.4rem; font-weight: 800; margin-bottom: 16px; }
.hero-sub { color: var(--text-muted); font-size: 1.1rem; max-width: 540px; margin: 0 auto 28px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Feature grid */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin: 32px 0; }
.feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.feature-card h3 { font-size: 1rem; margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 14px; }

/* Cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 20px; }
.card h2 { font-size: 1.2rem; margin-bottom: 16px; }
.card h3 { font-size: 1rem; margin-bottom: 12px; }
.card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 20px; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 6px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s;
}
.btn:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-primary { background: var(--accent); }
.btn-secondary { background: transparent; border-color: var(--border); color: var(--text-muted); }
.btn-secondary:hover { background: var(--surface2); color: var(--text); }
.btn-sm { padding: 4px 12px; font-size: 13px; }
.action-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; color: var(--text-muted); margin-bottom: 6px; }
.form-group small { display: block; font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
input, select, textarea {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 14px;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
textarea { resize: vertical; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 12px; font-size: 14px; }
.alert-success { background: rgba(34,197,94,.15); border: 1px solid rgba(34,197,94,.3); color: var(--success); }
.alert-error { background: rgba(239,68,68,.15); border: 1px solid rgba(239,68,68,.3); color: var(--error); }

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.badge-ok { background: rgba(34,197,94,.15); border-color: rgba(34,197,94,.3); color: var(--success); }
.badge-warn { background: rgba(245,158,11,.15); border-color: rgba(245,158,11,.3); color: var(--warn); }
.badge-lg { font-size: 14px; padding: 4px 12px; }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th { text-align: left; padding: 10px 12px; border-bottom: 2px solid var(--border); color: var(--text-muted); font-weight: 600; }
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.data-table tr:hover td { background: var(--surface2); }

/* DL */
dl { display: grid; grid-template-columns: 140px 1fr; gap: 8px 16px; }
dt { color: var(--text-muted); font-size: 13px; }
dd { font-size: 14px; }

/* Tracing panel */
.tracing-panel { background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.tracing-panel h4 { margin-bottom: 12px; font-size: 14px; color: var(--text-muted); }
.tracing-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.tracing-grid > div label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.tracing-grid > div span { font-size: 14px; }
.tracing-grid > div small { display: block; font-size: 11px; color: var(--text-muted); }

/* Calc result */
.calc-result { background: var(--surface2); border-radius: var(--radius); padding: 16px; }
.calc-result h3 { margin-bottom: 12px; }
.amount { font-weight: 700; color: var(--success); }
.amount.green { color: var(--success); }
.note { color: var(--text-muted); font-size: 13px; margin: 8px 0; }

/* Detail header */
.detail-header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.detail-header h1 { font-size: 1.8rem; }

/* Report result */
.report-result { background: var(--surface2); border-radius: var(--radius); padding: 16px; }
.report-result h4 { margin-bottom: 12px; }
.screenshot { max-width: 100%; border-radius: 4px; border: 1px solid var(--border); }

/* HTMX indicator */
.htmx-indicator { display: none; color: var(--text-muted); font-size: 13px; }
.htmx-request .htmx-indicator { display: inline; }

/* Submit result */
.submit-result { }

/* Lists */
ul, ol { padding-left: 20px; }
li { margin-bottom: 6px; font-size: 14px; }
a { color: var(--accent-hover); }
a:hover { color: var(--text); }

/* Footer */
.footer { background: var(--surface); border-top: 1px solid var(--border); padding: 16px 24px; text-align: center; }
.footer p { font-size: 13px; color: var(--text-muted); }
.footer .disclaimer { font-size: 11px; margin-top: 4px; }

/* Phase 5 additions */
.badge-error { background: rgba(239,68,68,.15); border-color: rgba(239,68,68,.3); color: var(--error); }
.alert-warn { background: rgba(245,158,11,.15); border: 1px solid rgba(245,158,11,.3); color: var(--warn); padding: 12px 16px; border-radius: 6px; font-size: 14px; }
.page-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.page-header h1 { margin: 0; }
.mb-2 { margin-bottom: 8px; }
.text-muted { color: var(--text-muted); font-size: 13px; }
.mt-1 { margin-top: 4px; }
.stat-bar { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 20px; margin: 16px 0; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.stat-bar span { font-size: 14px; color: var(--text-muted); }
.compliance-panel { background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.compliance-panel h4 { font-size: 13px; color: var(--text-muted); margin-bottom: 10px; text-transform: uppercase; letter-spacing: .05em; }
.comp-row { padding: 8px 12px; border-radius: 6px; font-size: 14px; margin-bottom: 6px; background: var(--surface); border: 1px solid var(--border); }
.comp-red { border-color: rgba(239,68,68,.4); background: rgba(239,68,68,.08); color: var(--error); }
.comp-amber { border-color: rgba(245,158,11,.4); background: rgba(245,158,11,.08); color: var(--warn); }
.comp-green { border-color: rgba(34,197,94,.4); background: rgba(34,197,94,.08); color: var(--success); }
.comp-muted { color: var(--text-muted); }

/* Responsive */
@media (max-width: 640px) {
  .navbar { gap: 16px; padding: 0 16px; }
  .nav-links { gap: 12px; flex-wrap: wrap; }
  .nav-links a { font-size: 13px; }
  .hero h1 { font-size: 1.7rem; }
  .form-row { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  dl { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
}