/* ═══════════════════════════════════════════════════
   Draftkiln Design System
   ═══════════════════════════════════════════════════ */

:root {
  --bg: #2a2722;
  --surface: #3e3a34;
  --surface-2: #4a453e;
  --text: #f0ece4;
  --text-soft: #c8c2b8;
  --text-muted: #a09788;
  --accent: #d4693a;
  --accent-light: #ee8e56;
  --accent-glow: rgba(200, 90, 42, 0.10);
  --rule: #4e4940;
  --rule-light: #5a544b;
  --green: #5ae890;
  --green-dim: #22b84a;
  --amber: #fcc63a;
  --red: #ff8080;
  --nav-bg: rgba(42, 39, 34, 0.96);
  --invert-bg: #faf7f0;
  --invert-text: #1a1714;
  --invert-muted: #7a7265;
  --invert-rule: #e4ddd0;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ─────────────────────────────────────────── */

nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 48px; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
  background: var(--nav-bg); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--rule);
}
.nav-mark {
  font-family: 'Playfair Display', serif; font-size: 20px; font-weight: 700;
  color: var(--text); text-decoration: none; display: flex; align-items: center; gap: 4px;
  letter-spacing: -0.3px;
}
.nav-mark svg { margin: 0 1px; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
  font-size: 13px; font-weight: 500; color: var(--text-muted);
  text-decoration: none; letter-spacing: 0.02em; transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--accent); }

/* ── BUTTONS ─────────────────────────────────────── */

.btn {
  padding: 10px 22px; border: 1px solid var(--rule-light); border-radius: 8px;
  background: var(--surface); color: var(--text); font-size: 13px; font-weight: 600;
  cursor: pointer; font-family: inherit; transition: all 0.2s; text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn:hover { border-color: var(--text-muted); }
.btn-primary {
  background: var(--accent); border-color: var(--accent); color: #fff;
}
.btn-primary:hover { background: var(--accent-light); border-color: var(--accent-light); }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-danger { border-color: var(--red); color: var(--red); background: none; }
.btn-danger:hover { background: rgba(248, 113, 113, 0.1); }

/* ── BADGES ──────────────────────────────────────── */

.badge {
  display: inline-block; font-size: 10px; font-weight: 700;
  padding: 3px 10px; border-radius: 12px; text-transform: uppercase;
  letter-spacing: 0.06em; white-space: nowrap;
}
.badge-active { background: rgba(200, 90, 42, 0.15); color: var(--accent-light); }
.badge-gate { background: rgba(251, 191, 36, 0.15); color: var(--amber); }
.badge-complete { background: rgba(74, 222, 128, 0.12); color: var(--green); }
.badge-error { background: rgba(248, 113, 113, 0.15); color: var(--red); }
.badge-pending { background: var(--rule); color: var(--text-muted); }
.badge-checkpoint { background: rgba(200, 90, 42, 0.15); color: var(--accent-light); }

/* ── CARDS ────────────────────────────────────────── */

.card {
  background: var(--surface); border: 1px solid var(--rule);
  border-radius: 12px; padding: 24px; transition: all 0.2s;
}
.card:hover { border-color: var(--rule-light); }

/* ── PROGRESS BAR ────────────────────────────────── */

.progress-bar {
  height: 4px; background: var(--rule); border-radius: 2px; overflow: hidden;
}
.progress-fill {
  height: 100%; border-radius: 2px; transition: width 0.4s;
  background: var(--accent);
}
.progress-fill.complete { background: var(--green); }
.progress-fill.gate { background: var(--amber); }

/* ── PHASE DOTS ──────────────────────────────────── */

.phase-dots { display: flex; gap: 4px; }
.phase-dot {
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700; flex-shrink: 0;
  transition: all 0.2s; cursor: default;
}
.phase-dot.pending { background: var(--rule); color: var(--text-muted); }
.phase-dot.in_progress { background: var(--accent); color: #fff; box-shadow: 0 0 0 3px rgba(200, 90, 42, 0.25); }
.phase-dot.checkpoint { background: var(--accent); color: #fff; box-shadow: 0 0 0 3px rgba(200, 90, 42, 0.25); }
.phase-dot.complete { background: var(--green-dim); color: #fff; }
.phase-dot.gate { background: rgba(251, 191, 36, 0.2); color: var(--amber); }
.phase-dot.error { background: rgba(248, 113, 113, 0.2); color: var(--red); }

/* ── FORMS ────────────────────────────────────────── */

.form-group { margin-bottom: 20px; }
.form-label {
  display: block; font-size: 11px; font-weight: 700; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px;
}
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 10px 14px;
  border: 1px solid var(--rule-light); border-radius: 8px;
  background: var(--bg); color: var(--text);
  font-size: 14px; font-family: inherit; outline: none;
  transition: border-color 0.2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
}
.form-textarea { min-height: 100px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.form-toggle {
  display: flex; align-items: center; gap: 10px; cursor: pointer;
  font-size: 14px; color: var(--text-soft);
}
.form-toggle input[type="checkbox"] {
  width: 18px; height: 18px; accent-color: var(--accent);
}
.form-section-title {
  font-family: 'Playfair Display', serif; font-size: 18px;
  margin: 36px 0 20px; padding-top: 24px;
  border-top: 1px solid var(--rule);
}
.form-section-title:first-child { margin-top: 0; border-top: none; padding-top: 0; }

/* ── LAYOUT ──────────────────────────────────────── */

.page-content { padding: 88px 48px 60px; max-width: 1200px; }
.page-header { margin-bottom: 32px; }
.page-title {
  font-family: 'Playfair Display', serif; font-size: 28px;
  font-weight: 700; margin-bottom: 8px;
}
.page-subtitle { font-size: 15px; color: var(--text-muted); }

/* ── SECTION TITLES ──────────────────────────────── */

.section-label {
  font-size: 11px; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 12px;
}

/* ── DROP ZONE ───────────────────────────────────── */

.drop-zone {
  border: 2px dashed var(--rule-light); border-radius: 10px;
  padding: 32px; text-align: center; cursor: pointer;
  transition: all 0.2s;
}
.drop-zone:hover, .drop-zone.active {
  border-color: var(--accent); background: rgba(200, 90, 42, 0.04);
}
.drop-zone-text { font-size: 13px; color: var(--text-muted); }
.drop-zone-text strong { color: var(--accent); }

/* ── EMPTY STATE ─────────────────────────────────── */

.empty-state { text-align: center; padding: 80px 40px; }
.empty-state-title {
  font-family: 'Playfair Display', serif; font-size: 22px; margin-bottom: 8px;
}
.empty-state-text {
  font-size: 14px; color: var(--text-muted);
  max-width: 400px; margin: 0 auto 24px; line-height: 1.6;
}

/* ── RESPONSIVE ──────────────────────────────────── */

@media (max-width: 768px) {
  nav { padding: 0 20px; }
  .page-content { padding: 80px 20px 40px; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
}

/* ── ANIMATIONS ──────────────────────────────────── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeUp 0.4s ease-out forwards; }

/* ── APP FOOTER ─────────────────────────────────── */

.app-footer {
  margin-top: 80px;
  padding: 60px 48px 36px;
  border-top: 1px solid var(--rule);
  color: var(--text-muted);
}
.app-footer .footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}
.app-footer .footer-brand {
  font-family: 'Playfair Display', 'Inter', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}
.app-footer .footer-brand small {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 8px;
  font-weight: 400;
  line-height: 1.5;
}
.app-footer .footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.app-footer .footer-col-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.app-footer .footer-col a {
  font-size: 14px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.app-footer .footer-col a:hover { color: var(--text-soft); }
.app-footer .footer-logo {
  font-family: 'Playfair Display', 'Inter', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}
.app-footer .footer-quote {
  display: flex;
  align-items: center;
  padding: 0 8px;
}
.app-footer .footer-epigraph {
  font-family: 'Playfair Display', 'Georgia', serif;
  font-size: 15px;
  font-style: italic;
  line-height: 1.7;
  color: var(--text-muted);
  border-left: 2px solid var(--rule);
  padding-left: 20px;
  margin: 0;
}
.app-footer .footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--text-muted);
}
@media (max-width: 640px) {
  .app-footer { padding: 40px 24px 28px; }
  .app-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .app-footer .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}