:root {
  --bg: #0f172a;
  --bg-2: #1e293b;
  --card: #1e293b;
  --card-border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #818cf8;
  --success: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
  color: var(--text);
  min-height: 100vh;
}

a { color: var(--accent); }

/* ---------- Login ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 32px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.login-card h1 {
  margin: 0 0 6px;
  font-size: 26px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.login-card p.sub { margin: 0 0 24px; color: var(--muted); font-size: 14px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--muted); }
.field input {
  width: 100%;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: #0f172a;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}
.field input:focus { border-color: var(--accent); }
.btn {
  width: 100%;
  padding: 12px 16px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #0f172a;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
  transition: transform 0.05s, opacity 0.15s;
}
.btn:hover { opacity: 0.92; }
.btn:active { transform: translateY(1px); }
.btn.secondary {
  background: transparent;
  border: 1px solid var(--card-border);
  color: var(--text);
}
.error-msg {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fecaca;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 14px;
  display: none;
}
.hint {
  margin-top: 18px;
  font-size: 12px;
  color: var(--muted);
  border-top: 1px dashed var(--card-border);
  padding-top: 14px;
}
.hint code {
  background: #0f172a;
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent);
}

/* ---------- Dashboard ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--card-border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar .brand {
  font-weight: 700;
  font-size: 18px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.topbar .right { display: flex; align-items: center; gap: 14px; }
.topbar .user { color: var(--muted); font-size: 13px; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px;
}

.session-id-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.session-id-card .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; }
.session-id-card .value {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 18px;
  color: var(--accent);
  word-break: break-all;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 20px 22px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}
.card h2 {
  margin: 0 0 4px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.card h2 .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
}
.card .desc { margin: 0 0 16px; color: var(--muted); font-size: 12px; }

.kv-list { display: grid; grid-template-columns: 1fr; gap: 8px; }
.kv {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px;
  padding: 8px 10px;
  background: #0f172a;
  border-radius: 8px;
  font-size: 13px;
  align-items: start;
}
.kv .k { color: var(--muted); }
.kv .v {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  word-break: break-all;
  white-space: pre-wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge.ok { background: rgba(34, 197, 94, 0.15); color: #86efac; border: 1px solid rgba(34, 197, 94, 0.4); }
.badge.bad { background: rgba(239, 68, 68, 0.15); color: #fca5a5; border: 1px solid rgba(239, 68, 68, 0.4); }
.badge.warn { background: rgba(245, 158, 11, 0.15); color: #fcd34d; border: 1px solid rgba(245, 158, 11, 0.4); }

.ext-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.ext-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #0f172a;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
}
.ext-list li .name { font-weight: 600; }
.ext-list li .meta { color: var(--muted); font-size: 11px; }

.empty { color: var(--muted); font-size: 13px; padding: 10px; text-align: center; }

/* Font chips (detected fonts) */
.chip-list { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: #0f172a;
  border: 1px solid var(--card-border);
  color: var(--text);
  font-size: 12px;
}

canvas.fp-canvas { display: none; }

.script-status {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; border-radius: 10px;
  background: #0f172a;
  font-size: 13px;
}
.script-status .src {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--muted);
  font-size: 12px;
  word-break: break-all;
}

/* ---------- Fingerprint time series ---------- */
.timeline { display: flex; flex-direction: column; gap: 14px; }
.timeline-item {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: #0f172a;
  padding: 14px 16px;
}
.timeline-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.timeline-index { color: var(--muted); font-size: 12px; }
.timeline-hash {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  color: var(--text);
  word-break: break-all;
  margin-top: 4px;
}
.change-detail { margin-top: 12px; }
.change-title { color: var(--muted); font-size: 12px; margin-bottom: 4px; }
.change-detail.muted-note { color: var(--muted); font-size: 12px; }
.change-row .v { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.change-row .old { color: var(--danger); }
.change-row .new { color: var(--success); }
.change-row .arrow { color: var(--muted); }

/* ---------- Sign-up password rules ---------- */
.pw-rules {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}
.pw-rules li::before { content: "○ "; }
.pw-rules li.ok { color: #86efac; }
.pw-rules li.ok::before { content: "✓ "; }
.pw-rules li.bad { color: var(--muted); }

/* ---------- Mobile / responsive ---------- */
/* Respect iOS safe-area (notch) when viewport-fit=cover is set. */
body {
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

/* Prevent iOS auto-zoom on focus by keeping inputs at >=16px. */
@media (max-width: 640px) {
  .field input { font-size: 16px; }

  .login-wrap { padding: 16px; }
  .login-card { padding: 22px; border-radius: 14px; }
  .login-card h1 { font-size: 22px; }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
  }
  .topbar .right {
    width: 100%;
    flex-wrap: wrap;
    gap: 10px;
  }
  .topbar .right .btn,
  .topbar .right a.btn {
    flex: 1 1 auto;
    text-align: center;
  }

  .container { padding: 16px; }

  /* One column on phones. */
  .grid { grid-template-columns: 1fr; gap: 16px; }

  .card { padding: 16px; }

  .session-id-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px;
  }
  .session-id-card .value { font-size: 15px; }

  /* Stack key/value pairs vertically so long values don't overflow. */
  .kv {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  /* Make touch targets comfortable. */
  .btn { padding: 14px 16px; }
}

@media (max-width: 380px) {
  .login-card h1 { font-size: 20px; }
  .session-id-card .value { font-size: 14px; }
}

/* Larger tablets: 2 columns. */
@media (min-width: 641px) and (max-width: 1024px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}