/* HolyAxiom App — Visual Identity
   Palette: near-black + electric blue + proof-gold + danger-red
   Aesthetic: sovereign, cryptographic, physical-reality-grade */

:root {
  --black:       #0a0a0f;
  --dark:        #12121a;
  --surface:     #1a1a28;
  --surface2:    #22223a;
  --border:      #2a2a45;
  --blue:        #3b82f6;
  --blue-dim:    #1d4ed8;
  --blue-glow:   rgba(59,130,246,0.15);
  --gold:        #f59e0b;
  --gold-dim:    #92400e;
  --gold-glow:   rgba(245,158,11,0.15);
  --green:       #10b981;
  --green-glow:  rgba(16,185,129,0.12);
  --red:         #ef4444;
  --red-glow:    rgba(239,68,68,0.12);
  --text:        #e2e8f0;
  --text-dim:    #94a3b8;
  --text-muted:  #475569;
  --mono:        'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  --radius:      8px;
  --radius-lg:   16px;
  --transition:  0.2s ease;
}

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

html, body {
  background: var(--black);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Layout ─────────────────────────────────────────────────────────────── */

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

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--dark);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.3px;
}

.logo-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--blue), var(--gold));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.logo-sub {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.main {
  flex: 1;
  padding: 24px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

/* ── Cards ──────────────────────────────────────────────────────────────── */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
}

.card-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* ── Viewfinder ─────────────────────────────────────────────────────────── */

.viewfinder-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--border);
  transition: border-color var(--transition);
}

.viewfinder-wrap.recording {
  border-color: var(--red);
  box-shadow: 0 0 0 1px var(--red), 0 0 24px var(--red-glow);
}

.viewfinder-wrap.verified {
  border-color: var(--green);
  box-shadow: 0 0 0 1px var(--green), 0 0 24px var(--green-glow);
}

#viewfinder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* HUD overlays */
.hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hud-corner {
  position: absolute;
  width: 20px;
  height: 20px;
  border-color: var(--blue);
  border-style: solid;
  opacity: 0.7;
}
.hud-corner.tl { top: 12px; left: 12px; border-width: 2px 0 0 2px; }
.hud-corner.tr { top: 12px; right: 12px; border-width: 2px 2px 0 0; }
.hud-corner.bl { bottom: 12px; left: 12px; border-width: 0 0 2px 2px; }
.hud-corner.br { bottom: 12px; right: 12px; border-width: 0 2px 2px 0; }

.hud-status {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,0,0,0.7);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 12px;
  font-family: var(--mono);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.rec-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hud-chain {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(0,0,0,0.75);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--blue);
  letter-spacing: 0.3px;
}

.chain-icon { color: var(--gold); font-size: 12px; }
.chain-hash { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chain-count { color: var(--text-muted); margin-left: 8px; }

/* ── Controls ───────────────────────────────────────────────────────────── */

.controls {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  padding: 20px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  letter-spacing: 0.2px;
}

.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-record {
  background: var(--red);
  color: #fff;
  padding: 16px 32px;
  border-radius: 40px;
  font-size: 15px;
  box-shadow: 0 4px 20px var(--red-glow);
}

.btn-record:hover:not(:disabled) {
  background: #dc2626;
  box-shadow: 0 4px 30px rgba(239,68,68,0.4);
  transform: translateY(-1px);
}

.btn-record.is-recording {
  background: var(--surface2);
  color: var(--red);
  border: 2px solid var(--red);
  animation: none;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 2px 12px var(--blue-glow);
}
.btn-primary:hover:not(:disabled) { background: #2563eb; }

.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
}
.btn-ghost:hover:not(:disabled) { background: var(--surface2); color: var(--text); }

.btn-gold {
  background: var(--gold);
  color: #000;
  font-weight: 700;
  box-shadow: 0 2px 12px var(--gold-glow);
}
.btn-gold:hover:not(:disabled) { background: #d97706; }

/* ── Stats Grid ─────────────────────────────────────────────────────────── */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.stat-cell {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.stat-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.stat-value {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.stat-value.blue  { color: var(--blue); }
.stat-value.gold  { color: var(--gold); }
.stat-value.green { color: var(--green); }
.stat-value.red   { color: var(--red); }

.stat-unit {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
}

/* ── Trust Meter ─────────────────────────────────────────────────────────── */

.trust-meter {
  display: flex;
  align-items: center;
  gap: 12px;
}

.trust-bar-wrap {
  flex: 1;
  height: 6px;
  background: var(--surface2);
  border-radius: 3px;
  overflow: hidden;
}

.trust-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.5s ease, background-color 0.5s ease;
}

.trust-label-badge {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 3px 8px;
  border-radius: 4px;
}

.trust-SOVEREIGN { background: var(--gold); color: #000; }
.trust-HIGH      { background: var(--green); color: #000; }
.trust-MEDIUM    { background: var(--blue); color: #fff; }
.trust-LOW       { background: var(--text-muted); color: #fff; }
.trust-MINIMAL   { background: var(--red); color: #fff; }

/* ── Hash Chain Visualization ───────────────────────────────────────────── */

.chain-log {
  max-height: 180px;
  overflow-y: auto;
  display: flex;
  flex-direction: column-reverse;
  gap: 4px;
  font-family: var(--mono);
  font-size: 11px;
}

.chain-entry {
  display: grid;
  grid-template-columns: 28px 1fr 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 6px 10px;
  background: var(--surface2);
  border-radius: var(--radius);
  border-left: 3px solid transparent;
  animation: slideIn 0.2s ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.chain-entry.latest { border-left-color: var(--blue); }

.ce-seq    { color: var(--text-muted); text-align: right; }
.ce-hash   { color: var(--blue); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ce-time   { color: var(--text-muted); white-space: nowrap; }
.ce-trust  { font-size: 9px; font-weight: 700; letter-spacing: 0.5px; padding: 2px 5px; border-radius: 3px; white-space: nowrap; }

/* ── Sensor readout ─────────────────────────────────────────────────────── */

.sensor-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.sensor-row:last-child { border-bottom: none; }

.sensor-icon { font-size: 18px; width: 28px; text-align: center; }
.sensor-name { color: var(--text-dim); width: 100px; }
.sensor-val  { flex: 1; font-family: var(--mono); font-size: 12px; }
.sensor-grade {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--surface2);
  letter-spacing: 0.5px;
}
.sensor-grade.A  { color: var(--green); }
.sensor-grade.B  { color: var(--blue); }
.sensor-grade.C  { color: var(--gold); }
.sensor-grade.D  { color: var(--red); }

/* ── Hardware badge ─────────────────────────────────────────────────────── */

.hw-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.hw-badge.level-0 { background: var(--surface2); border: 1px solid var(--border); color: var(--text-dim); }
.hw-badge.level-1 { background: var(--blue-glow); border: 1px solid var(--blue); color: var(--blue); }
.hw-badge.level-2 { background: var(--gold-glow); border: 1px solid var(--gold); color: var(--gold); }
.hw-badge.level-3 { background: linear-gradient(135deg, var(--gold-glow), var(--blue-glow)); border: 1px solid var(--gold); color: var(--gold); }

/* ── Proof export panel ─────────────────────────────────────────────────── */

.proof-hash-display {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--blue);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  word-break: break-all;
  letter-spacing: 0.3px;
}

/* ── Tabs ───────────────────────────────────────────────────────────────── */

.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.tab {
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  margin-bottom: -1px;
}

.tab.active {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Toast notifications ────────────────────────────────────────────────── */

.toast-stack {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
}

.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 13px;
  min-width: 260px;
  animation: toastIn 0.25s ease;
  display: flex;
  align-items: center;
  gap: 10px;
}

.toast.success { border-left: 3px solid var(--green); }
.toast.error   { border-left: 3px solid var(--red); }
.toast.info    { border-left: 3px solid var(--blue); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Scrollbars ─────────────────────────────────────────────────────────── */

::-webkit-scrollbar       { width: 4px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Mobile ─────────────────────────────────────────────────────────────── */

@media (max-width: 600px) {
  .main { padding: 16px; }
  .app-header { padding: 12px 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .chain-entry { grid-template-columns: 24px 1fr auto; }
  .ce-time { display: none; }
}

/* ── Wallet button ───────────────────────────────────────────────────────── */

#wallet-btn {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--mono);
  font-size: 11px;
}

#wallet-btn.wallet-connected {
  background: var(--green-glow);
  border-color: var(--green);
  color: var(--green);
}

/* ── Gold button variant ─────────────────────────────────────────────────── */

.btn-gold {
  background: linear-gradient(135deg, var(--gold), #d97706);
  color: #000;
  border-color: var(--gold);
  font-weight: 700;
}
.btn-gold:hover { opacity: 0.9; }
.btn-gold:disabled { background: var(--surface2); color: var(--text-muted); border-color: var(--border); }