:root {
    --bg: #0c111c;
    --surface: #131a2a;
    --surface-2: #1a2337;
    --line: #26305a;
    --text: #e8ecf6;
    --muted: #8b96b3;
    --accent: #5aa2ff;
    --accent-2: #35d49b;
    --warn: #ffb454;
    --warn-bg: #2a2113;
    --ok-bg: #10251d;
    --mono: "Cascadia Code", "SF Mono", Consolas, monospace;
    --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  }
  * { box-sizing: border-box; margin: 0; }
  body {
    background: radial-gradient(1200px 600px at 80% -10%, #16223f 0%, var(--bg) 55%);
    color: var(--text);
    font-family: var(--sans);
    min-height: 100vh;
    padding: 28px clamp(16px, 4vw, 48px) 64px;
  }
  header { display: flex; align-items: baseline; gap: 16px; margin-bottom: 28px; }
  .wordmark { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; }
  .wordmark .re { color: var(--accent); }
  .tagline { color: var(--muted); font-size: 0.9rem; }
  main {
    display: grid;
    grid-template-columns: minmax(240px, 300px) 1fr;
    gap: 20px;
    align-items: start;
    max-width: 1200px;
  }
  @media (max-width: 860px) { main { grid-template-columns: 1fr; } }
  .panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px 20px;
  }
  .panel h2 {
    font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.12em;
    color: var(--muted); margin-bottom: 14px; font-weight: 600;
  }
  .col { display: flex; flex-direction: column; gap: 20px; }

  /* Watchlist */
  .wl-item {
    display: flex; align-items: baseline; gap: 10px;
    padding: 8px 10px; border-radius: 8px;
  }
  .wl-item:hover { background: var(--surface-2); }
  .wl-sym { font-family: var(--mono); font-weight: 600; color: var(--accent); min-width: 4.5ch; }
  .wl-name { font-size: 0.92rem; }
  .wl-note { color: var(--muted); font-size: 0.8rem; margin-left: auto; text-align: right; }

  /* Buttons & forms */
  button {
    font: 600 0.92rem var(--sans); color: #0b1020;
    background: linear-gradient(180deg, #7ab5ff, var(--accent));
    border: 0; border-radius: 8px; padding: 10px 18px; cursor: pointer;
    transition: transform 120ms ease, box-shadow 120ms ease;
  }
  button:hover { transform: translateY(-1px); box-shadow: 0 4px 18px rgba(90,162,255,0.35); }
  button:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; }
  button:disabled { opacity: 0.45; cursor: default; transform: none; box-shadow: none; }
  label { display: block; font-size: 0.78rem; color: var(--muted); margin: 10px 0 4px; }
  input, select, textarea {
    width: 100%; background: var(--bg); color: var(--text);
    border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px;
    font: 0.92rem var(--sans);
  }
  input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
  textarea { font-family: var(--mono); font-size: 0.85rem; resize: vertical; }

  /* Brief */
  .brief-head { display: flex; align-items: center; gap: 14px; }
  .brief-meta { color: var(--muted); font-size: 0.82rem; }
  .progress { display: none; margin-top: 14px; }
  .progress.active { display: block; }
  .progress-bar {
    height: 3px; border-radius: 2px; overflow: hidden; background: var(--surface-2);
    position: relative; margin-bottom: 8px;
  }
  .progress-bar::after {
    content: ""; position: absolute; inset: 0; width: 35%;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    animation: sweep 1.1s ease-in-out infinite;
  }
  @keyframes sweep { from { left: -35%; } to { left: 100%; } }
  .progress-stage { color: var(--muted); font-size: 0.85rem; font-family: var(--mono); }
  .overall {
    margin: 16px 0 6px; padding: 12px 14px; border-left: 3px solid var(--accent-2);
    background: var(--surface-2); border-radius: 0 8px 8px 0; font-size: 0.98rem;
  }
  .sym-card {
    margin-top: 12px; padding: 12px 14px; background: var(--surface-2);
    border: 1px solid var(--line); border-radius: 10px;
  }
  .sym-card h3 { font-family: var(--mono); color: var(--accent); font-size: 1rem; margin-bottom: 6px; }
  .sym-card p { font-size: 0.92rem; line-height: 1.45; }
  .checks { margin: 8px 0 0 18px; color: var(--muted); font-size: 0.85rem; }
  .refs { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; }
  .ref {
    font-size: 0.8rem; color: var(--muted); background: var(--bg);
    border: 1px dashed var(--line); border-radius: 8px; padding: 7px 10px;
  }
  .ref b { color: var(--accent-2); font-family: var(--mono); font-weight: 600; }

  /* Decision + contradiction card */
  .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
  .verdict { display: none; margin-top: 16px; border-radius: 10px; padding: 14px 16px; }
  .verdict.show { display: block; animation: pop 240ms ease; }
  @keyframes pop { from { transform: scale(0.97); opacity: 0; } }
  .verdict.contradiction { background: var(--warn-bg); border: 1px solid var(--warn); }
  .verdict.clear { background: var(--ok-bg); border: 1px solid var(--accent-2); }
  .verdict.unavailable { background: var(--surface-2); border: 1px solid var(--line); }
  .verdict h3 { font-size: 0.95rem; margin-bottom: 6px; }
  .verdict.contradiction h3 { color: var(--warn); }
  .verdict.clear h3 { color: var(--accent-2); }
  .verdict p { font-size: 0.9rem; line-height: 1.5; }
  .past-memory {
    margin-top: 10px; padding: 10px 12px; background: var(--bg);
    border-radius: 8px; font-size: 0.85rem; border: 1px dashed var(--warn);
  }
  .past-memory .pm-meta { color: var(--muted); font-family: var(--mono); font-size: 0.75rem; margin-bottom: 4px; }
  .error-line { color: var(--warn); font-size: 0.85rem; margin-top: 10px; min-height: 1.2em; }

.submit-row { margin-top: 14px; }

/* Login overlay (browser Basic-auth dialogs don't work behind Function URLs) */
.login-overlay {
  position: fixed; inset: 0; z-index: 10;
  display: flex; align-items: center; justify-content: center;
  background: rgba(7, 10, 18, 0.82); backdrop-filter: blur(3px);
}
.login-overlay[hidden] { display: none; }
.login-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 12px; padding: 26px 28px; width: min(360px, 90vw);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5);
}
.login-card .wordmark { margin-bottom: 4px; }
.login-hint { color: var(--muted); font-size: 0.85rem; margin-bottom: 8px; }