/* USDS — Universal Sovereign Distribution System */
/* Dark Theme — Constitutional Framework Styles v0.2.0 */

:root {
  --bg-primary: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a25;
  --bg-input: #1a1a28;
  --bg-nav: #0e0e16;
  --accent: #ff6d00;
  --accent-dim: #cc5800;
  --accent-glow: rgba(255, 109, 0, 0.15);
  --text-primary: #e8e8f0;
  --text-secondary: #8888a0;
  --text-muted: #555568;
  --border: #2a2a3a;
  --border-light: #3a3a50;
  --success: #22c55e;
  --warning: #eab308;
  --danger: #ef4444;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 12px rgba(0,0,0,0.4);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
}

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

html, body {
  height: 100%;
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── App Shell ──────────────────────────────────── */
#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

/* ── Header ─────────────────────────────────────── */
.app-header {
  position: sticky;
  top: 44px;
  z-index: 10000;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  display: flex;
  align-items: center;
  height: 56px;
  gap: 16px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.brand-icon { font-size: 1.4em; }
.brand-title {
  font-size: 1.2em;
  font-weight: 700;
  color: var(--accent);
}
.brand-sub {
  font-size: 0.75em;
  color: var(--text-secondary);
}

/* ── Navigation ─────────────────────────────────── */
.header-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.nav-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.85em;
  font-family: var(--font);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
.nav-btn:hover { color: var(--text-primary); background: var(--accent-glow); }
.nav-btn.active { color: var(--accent); background: var(--accent-glow); font-weight: 600; }
.nav-icon { font-size: 0.9em; }

/* ── Install Button ─────────────────────────────── */
.install-btn {
  background: var(--accent);
  border: none;
  color: #fff;
  padding: 6px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.82em;
  font-weight: 600;
  font-family: var(--font);
  transition: all 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.install-btn:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 109, 0, 0.3);
}
.install-btn:active { transform: scale(0.97); }

/* ── Mobile Menu ────────────────────────────────── */
.mobile-menu {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 6px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1.2em;
}

/* ── Main Content ───────────────────────────────── */
.app-main {
  flex: 1;
  padding: 20px 16px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* ── Footer ─────────────────────────────────────── */
.app-footer {
  text-align: center;
  padding: 12px;
  font-size: 0.75em;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}
.footer-sep { margin: 0 4px; }

/* ── Screen Transitions ─────────────────────────── */
.screen { display: none; }
.screen.active { display: block; animation: fadeIn 0.25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

/* ── Cards ──────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.card:hover { border-color: var(--border-light); }
.card h2 { font-size: 1.1em; margin-bottom: 12px; color: var(--accent); }
.card h3 { font-size: 0.95em; margin-bottom: 8px; }

/* ── Buttons ────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.85em;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.2s;
}
.btn:hover { background: var(--bg-card-hover); border-color: var(--border-light); }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.btn-primary:hover { background: var(--accent-dim); border-color: var(--accent-dim); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--danger);
  color: var(--danger);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.25); }

.btn-success {
  background: rgba(34, 197, 94, 0.15);
  border-color: var(--success);
  color: var(--success);
}
.btn-success:hover { background: rgba(34, 197, 94, 0.25); }

.btn-sm { padding: 5px 12px; font-size: 0.78em; }

/* ── Badges ─────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.badge-green { background: rgba(34,197,94,0.12); color: var(--success); border-color: rgba(34,197,94,0.3); }
.badge-yellow { background: rgba(234,179,8,0.12); color: var(--warning); border-color: rgba(234,179,8,0.3); }
.badge-red { background: rgba(239,68,68,0.12); color: var(--danger); border-color: rgba(239,68,68,0.3); }
.badge-accent { background: var(--accent-glow); color: var(--accent); border-color: rgba(255,109,0,0.3); }

/* ── Input Groups ───────────────────────────────── */
.input-group { margin-bottom: 14px; }
.input-group label {
  display: block;
  font-size: 0.8em;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.input-group input,
.input-group select,
.input-group textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.9em;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s;
}
.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus { border-color: var(--accent); }
.input-group textarea { min-height: 80px; resize: vertical; font-family: var(--mono); font-size: 0.82em; }
.input-group select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238888a0' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

/* ── Package Card ───────────────────────────────── */
.package-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: all 0.2s;
}
.package-card:hover { border-color: var(--accent); background: var(--bg-card-hover); }
.package-card.selected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.package-card .pkg-icon { font-size: 1.8em; }
.package-card .pkg-info { flex: 1; min-width: 0; }
.package-card .pkg-name { font-weight: 600; font-size: 0.95em; }
.package-card .pkg-meta { font-size: 0.78em; color: var(--text-secondary); margin-top: 2px; }
.package-card .pkg-status { text-align: right; flex-shrink: 0; }
.package-card .pkg-actions {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

/* ── Chain of Custody Entry ─────────────────────── */
.chain-entry {
  position: relative;
  padding: 14px 16px 14px 36px;
  border-left: 2px solid var(--border);
  margin-left: 12px;
  margin-bottom: 4px;
}
.chain-entry::before {
  content: '';
  position: absolute;
  left: -7px;
  top: 18px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-primary);
}
.chain-entry.revoked::before { background: var(--danger); }
.chain-entry .chain-action { font-weight: 600; font-size: 0.88em; }
.chain-entry .chain-detail { font-size: 0.78em; color: var(--text-secondary); margin-top: 2px; }
.chain-entry .chain-time { font-size: 0.72em; color: var(--text-muted); margin-top: 4px; font-family: var(--mono); }

/* ── Signature Block ────────────────────────────── */
.signature-block {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin: 10px 0;
}
.signature-block .sig-label { font-size: 0.72em; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.signature-block .sig-value { font-family: var(--mono); font-size: 0.8em; color: var(--text-primary); word-break: break-all; margin-top: 4px; }
.signature-block .sig-hash { color: var(--accent); }

/* ── Grid Layouts ───────────────────────────────── */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.grid-3col {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}
.grid-4col {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 16px;
}

/* ── Stats Card ─────────────────────────────────── */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  transition: all 0.2s;
}
.stat-card:hover { border-color: var(--border-light); }
.stat-card .stat-icon { font-size: 1.6em; margin-bottom: 6px; }
.stat-card .stat-value { font-size: 2em; font-weight: 700; color: var(--accent); line-height: 1.1; }
.stat-card .stat-label { font-size: 0.78em; color: var(--text-secondary); margin-top: 4px; }

/* ── Progress Bar ───────────────────────────────── */
.progress-bar {
  height: 6px;
  background: var(--bg-input);
  border-radius: 3px;
  overflow: hidden;
}
.progress-bar .progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s ease;
}
.progress-fill.accent { background: var(--accent); }
.progress-fill.success { background: var(--success); }
.progress-fill.warning { background: var(--warning); }

/* ── Verification Report ────────────────────────── */
.verify-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.verify-section .vs-info { flex: 1; }
.verify-section .vs-name { font-weight: 600; font-size: 0.9em; }
.verify-section .vs-detail { font-size: 0.78em; color: var(--text-secondary); margin-top: 4px; }

/* ── Channel Cards ──────────────────────────────── */
.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  text-align: center;
  transition: all 0.2s;
  cursor: default;
}
.channel-card:hover { border-color: var(--border-light); }
.channel-card .ch-icon { font-size: 1.6em; margin-bottom: 6px; }
.channel-card .ch-name { font-size: 0.85em; font-weight: 600; color: var(--text-primary); }
.channel-card .ch-count { font-size: 1.4em; font-weight: 700; color: var(--accent); margin-top: 4px; }

/* ── Misc ───────────────────────────────────────── */
.section-title {
  font-size: 1.1em;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 0.9em;
}
.empty-state .empty-icon { font-size: 2.5em; margin-bottom: 12px; }
.mono { font-family: var(--mono); font-size: 0.82em; }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.flex-row { display: flex; gap: 8px; align-items: center; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-wrap { flex-wrap: wrap; }

/* ── Toast / Notifications ──────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 12px 20px;
  font-size: 0.88em;
  color: var(--text-primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  z-index: 200;
  animation: slideInRight 0.3s ease;
  max-width: 360px;
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 768px) {
  .header-nav {
    display: none;
  }
  .header-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border);
    padding: 8px;
    z-index: 99;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  }
  .header-nav.open .nav-btn {
    padding: 12px 16px;
    border-radius: var(--radius);
  }
  .mobile-menu { display: block; margin-left: auto; }
  .brand-sub { display: none; }
  .grid-2col, .grid-3col, .grid-4col { grid-template-columns: 1fr; }
  .app-main { padding: 12px; }
  .install-btn { font-size: 0.75em; padding: 5px 10px; }
}

@media (max-width: 480px) {
  .app-header { padding: 0 10px; gap: 8px; }
  .brand-icon { font-size: 1.2em; }
  .brand-title { font-size: 1.05em; }
  .stat-card .stat-value { font-size: 1.6em; }
  .package-card { padding: 12px 14px; gap: 12px; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid-4col { grid-template-columns: 1fr 1fr; }
}

/* ── Print ──────────────────────────────────────── */
@media print {
  .app-header, .app-footer, .install-btn, .mobile-menu { display: none !important; }
  .screen { display: block !important; }
  .card { break-inside: avoid; }
}