:root {
  --bg: #0a0e1a;
  --bg-2: #0e1422;
  --card: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #e8edf7;
  --text-dim: rgba(232, 237, 247, 0.62);
  --text-faint: rgba(232, 237, 247, 0.32);
  --green: #00e676;
  --green-soft: rgba(0, 230, 118, 0.12);
  --red: #ff5468;
  --red-soft: rgba(255, 84, 104, 0.12);
  --amber: #ffb74d;
  --amber-soft: rgba(255, 183, 77, 0.12);
  --accent: #5b9bff;
  --mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { opacity: 0.8; }

/* ---------- top bar (minimal) ---------- */

.bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  z-index: 20;
  pointer-events: none;
}

.bar > * { pointer-events: auto; }

.brand {
  font-weight: 700;
  letter-spacing: 0.5px;
  font-size: 15px;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px var(--green);
}

.brand-logo {
  filter: drop-shadow(0 0 8px rgba(0, 230, 118, 0.5));
}

.landing-logo {
  margin: 0 0 24px;
  filter: drop-shadow(0 0 24px rgba(0, 230, 118, 0.4));
}

.bar-link {
  font-size: 14px;
  color: var(--text-dim);
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  background: var(--card);
  transition: all 0.15s ease;
}

.bar-link:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.18);
  opacity: 1;
}

/* ---------- landing ---------- */

.landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px 40px;
  text-align: center;
}

.landing h1 {
  font-size: clamp(40px, 8vw, 72px);
  font-weight: 800;
  letter-spacing: -2px;
  margin: 0 0 12px;
  background: linear-gradient(135deg, #fff 0%, #8ba9ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.landing-sub {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 420px;
  margin: 0 0 56px;
}

.landing-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 320px;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 24px;
  border-radius: 12px;
  background: #fff;
  color: #0a0e1a;
  font-weight: 600;
  font-size: 16px;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  font-family: var(--sans);
}

.btn:hover { transform: translateY(-1px); opacity: 1; }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.btn-ghost {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--card-border);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); }

.btn-pill {
  background: var(--accent);
  color: #fff;
}
.btn-pill:hover { background: #6fa8ff; }

.btn-sm {
  padding: 10px 16px;
  font-size: 14px;
  border-radius: 10px;
}

/* ---------- stage (camera / verify input / result) ---------- */

.stage {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.stage-media {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

.stage-media video,
.stage-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.stage-media.dim::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 14, 26, 0.3) 0%, rgba(10, 14, 26, 0.85) 100%);
  pointer-events: none;
}

.stage-empty {
  color: var(--text-faint);
  text-align: center;
  padding: 40px;
  font-size: 15px;
}

/* ---------- shutter (capture screen) ---------- */

.shutter-row {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 32px 24px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  z-index: 5;
  background: linear-gradient(180deg, transparent 0%, rgba(10, 14, 26, 0.7) 100%);
}

.shutter {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: #fff;
  border: 4px solid rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.shutter::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: #fff;
  transition: all 0.15s ease;
  z-index: 0;
}
.shutter-icon {
  position: relative;
  z-index: 1;
  pointer-events: none;
}
.shutter:hover { transform: scale(1.05); }
.shutter:active::before { transform: scale(0.88); }
.shutter:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.icon-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  transition: all 0.15s ease;
  font-family: var(--sans);
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.08); }

/* ---------- top status pill ---------- */

.status-pill {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(10, 14, 26, 0.85);
  border: 1px solid var(--card-border);
  font-size: 13px;
  color: var(--text-dim);
  backdrop-filter: blur(12px);
  z-index: 30;
  display: none;
}
.status-pill.show { display: block; }
.status-pill.ok { color: var(--green); border-color: rgba(0, 230, 118, 0.3); }

/* ---------- result stage (bottom-anchored so photo stays visible) ---------- */

.stage.stage-bottom {
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 16px;
}

/* ---------- result card ---------- */

.result {
  position: relative;
  width: 100%;
  max-width: 460px;
  margin: 0 16px;
  background: rgba(14, 20, 34, 0.92);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 24px 24px 16px;
  backdrop-filter: blur(20px);
  z-index: 10;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.result.peek {
  transform: translateY(calc(100% - 56px));
  padding: 14px 24px;
  cursor: pointer;
}
.result.peek .result-toggle,
.result.peek .result-section,
.result.peek .result-actions,
.result.peek .result-divider,
.result.peek .result-sub,
.result.peek .result-id,
.result.peek .check-strip,
.result.peek .result-icon {
  display: none;
}
.result.peek .result-title {
  font-size: 14px;
  margin: 0;
  line-height: 1.4;
  font-weight: 700;
}
.result.peek .btn-peek::before { content: "▲"; }
.btn-peek::before { content: "▼"; }

.btn-peek {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--text-dim);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  transition: all 0.15s ease;
  font-family: var(--sans);
  z-index: 2;
}
.btn-peek:hover { color: var(--text); background: rgba(255,255,255,0.08); }

/* ---------- inline check chips (always visible at glance) ---------- */

.check-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin: 0 0 18px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.2px;
  background: var(--green-soft);
  color: var(--green);
  border: 1px solid rgba(0, 230, 118, 0.18);
}
.chip.fail {
  background: var(--red-soft);
  color: var(--red);
  border-color: rgba(255, 84, 104, 0.22);
}
.chip-icon { font-size: 10px; line-height: 1; }

.result-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 700;
}

.result-icon.ok {
  background: var(--green-soft);
  color: var(--green);
  box-shadow: 0 0 60px rgba(0, 230, 118, 0.3);
}
.result-icon.fail {
  background: var(--red-soft);
  color: var(--red);
  box-shadow: 0 0 60px rgba(255, 84, 104, 0.25);
}
.result-icon.unclear {
  background: var(--amber-soft);
  color: var(--amber);
  box-shadow: 0 0 60px rgba(255, 183, 77, 0.22);
}

.result-title {
  text-align: center;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin: 0 0 4px;
}
.result-title.ok { color: var(--green); }
.result-title.fail { color: var(--red); }
.result-title.unclear { color: var(--amber); }

.result-sub {
  text-align: center;
  color: var(--text-dim);
  font-size: 14px;
  margin: 0 0 14px;
}

.result-id {
  text-align: center;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-faint);
  margin: 0 0 16px;
  letter-spacing: 0.5px;
}

.result-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}
.result-actions .btn { flex: 1; }

.result-toggle {
  display: block;
  width: 100%;
  text-align: center;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 13px;
  padding: 14px 0 4px;
  cursor: pointer;
  font-family: var(--sans);
  transition: color 0.15s;
}
.result-toggle:hover { color: var(--text); }

.result-section {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.result-section.open { max-height: 1200px; }

.result-divider {
  height: 1px;
  background: var(--card-border);
  margin: 16px -28px;
}

/* level 2: details */
.details-rows { padding: 4px 0 12px; }
.details-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--card-border);
  gap: 16px;
}
.details-row:last-child { border-bottom: none; }
.details-row .k {
  color: var(--text-faint);
  font-size: 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  flex-shrink: 0;
}
.details-row .v {
  text-align: right;
  font-size: 14px;
  color: var(--text);
}

/* level 3: proof */
.proof-checks {
  padding: 4px 0 12px;
}
.proof-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  font-size: 14px;
}
.proof-row .pill {
  margin-left: auto;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}
.proof-row.ok .pill { background: var(--green-soft); color: var(--green); }
.proof-row.fail .pill { background: var(--red-soft); color: var(--red); }
.proof-row.idle .pill { background: var(--card); color: var(--text-faint); }

.proof-tech {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-dim);
  background: rgba(0, 0, 0, 0.3);
  border-radius: 10px;
  padding: 14px;
  margin-top: 8px;
  word-break: break-all;
  line-height: 1.7;
}
.proof-tech div { margin-bottom: 4px; }
.proof-tech .k { color: var(--text-faint); }

/* ---------- verify input screen ---------- */

.verify-wrap {
  width: 100%;
  max-width: 480px;
  padding: 24px;
  text-align: center;
}

.verify-wrap h1 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  margin: 0 0 8px;
}

.verify-wrap p {
  color: var(--text-dim);
  margin: 0 0 28px;
  font-size: 15px;
}

.input-large {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 18px 20px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  outline: none;
  text-align: center;
  margin-bottom: 12px;
  transition: border-color 0.15s;
}
.input-large:focus { border-color: var(--accent); }

.dropzone {
  margin-top: 16px;
  padding: 24px;
  border: 1.5px dashed var(--card-border);
  border-radius: 14px;
  cursor: pointer;
  color: var(--text-dim);
  font-size: 13.5px;
  transition: all 0.15s;
}
.dropzone:hover, .dropzone.drag {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(91, 155, 255, 0.04);
}

/* ---------- gear / device sheet ---------- */

.sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 40;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  backdrop-filter: blur(4px);
}
.sheet-overlay.show { display: flex; }
.sheet {
  width: 100%;
  max-width: 420px;
  background: var(--bg-2);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 24px;
}
.sheet h3 {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 700;
}
.sheet .row { display: flex; gap: 8px; margin-top: 16px; }
.sheet .row .btn { flex: 1; }
.sheet .field {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-dim);
  background: rgba(0, 0, 0, 0.25);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 10px;
  word-break: break-all;
}
.sheet .field-k {
  color: var(--text-faint);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

/* ---------- toast ---------- */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 20px;
  background: rgba(10, 14, 26, 0.95);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  font-size: 14px;
  z-index: 50;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}

/* ---------- helpers ---------- */

.hidden { display: none !important; }
.flex-spacer { flex: 1; }

@media (max-width: 520px) {
  .result { padding: 28px 22px 18px; }
  .result-icon { width: 64px; height: 64px; font-size: 32px; }
  .result-title { font-size: 26px; }
}