/* Display Test — shared design system (dark "Studio" theme, matches the iOS app) */

:root {
  --bg: #0F1014;
  --bg-top: #191B24;
  --card: #191B23;
  --card-2: #14161D;
  --border: #262832;
  --ink: #EEF0F5;
  --muted: #9096A6;
  --faint: #565C6C;
  --accent: #8EA2FF;
  --accent-2: #6F5CF0;
  --good: #7EE0B0;
  --ui: -apple-system, "SF Pro Display", system-ui, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(1100px 620px at 50% -8%, var(--bg-top) 0%, transparent 60%),
    var(--bg);
  color: var(--ink);
  font-family: var(--ui);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ---------- Home / menu ---------- */
.wrap { max-width: 1080px; margin: 0 auto; padding: 48px 22px 80px; }

.masthead { margin-bottom: 40px; }
.masthead .eyebrow {
  font-family: var(--mono);
  font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 12px;
}
.masthead h1 {
  font-size: clamp(30px, 6vw, 46px); line-height: 1.05; margin: 0 0 12px;
  font-weight: 680; letter-spacing: -0.02em;
}
.masthead p { color: var(--muted); font-size: 16px; margin: 0; max-width: 60ch; }

.section-label {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--muted); margin: 34px 2px 14px;
}
.section-label .rule { flex: 1; height: 1px; background: var(--border); }

.grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.card {
  display: flex; flex-direction: column; gap: 14px;
  background: linear-gradient(180deg, var(--card), var(--card-2));
  border: 1px solid var(--border); border-radius: 18px;
  padding: 18px; min-height: 132px;
  transition: transform .15s ease, border-color .15s ease;
}
.card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
.card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.card .top { display: flex; align-items: flex-start; justify-content: space-between; }
.card .icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--tint, var(--accent)) 16%, transparent);
  color: var(--tint, var(--accent));
}
.card .icon svg { width: 22px; height: 22px; display: block; }
.card .tag {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.12em; font-weight: 600;
  padding: 4px 8px; border-radius: 6px;
  color: var(--muted); background: rgba(255,255,255,0.05);
}
.card h3 { margin: 0; font-size: 16px; font-weight: 620; letter-spacing: -0.01em; }
.card .desc { margin: 3px 0 0; font-size: 13px; color: var(--muted); line-height: 1.45; }
.card .foot { margin-top: auto; }

.footer { margin-top: 56px; color: var(--faint); font-size: 12.5px; font-family: var(--mono); }

/* ---------- Test-page chrome (control panel, toggle, back) ---------- */
.panel {
  position: fixed; z-index: 20; top: 16px; left: 16px;
  width: min(320px, calc(100vw - 32px));
  background: color-mix(in srgb, var(--card) 96%, transparent);
  border: 1px solid var(--border); border-radius: 16px;
  padding: 16px; backdrop-filter: blur(8px);
  font-size: 14px; transition: opacity .25s ease, transform .25s ease;
}
.panel.hidden { opacity: 0; transform: translateY(-8px); pointer-events: none; }
.panel h2 { margin: 0 0 12px; font-size: 15px; font-weight: 620; }
.panel .row { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 9px 0; }
.panel label { color: var(--muted); font-size: 13px; }
.panel input {
  width: 130px; padding: 7px 9px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--card-2); color: var(--ink);
  font-family: var(--mono); font-size: 13px;
}
.panel input:focus { outline: none; border-color: var(--accent); }
.panel .btn {
  width: 100%; margin-top: 10px; padding: 10px; border-radius: 10px; border: none;
  background: linear-gradient(120deg, var(--accent), var(--accent-2)); color: #10121A;
  font-weight: 640; font-size: 14px; cursor: pointer;
}
.panel .btn.ghost {
  background: var(--card-2); color: var(--ink); border: 1px solid var(--border); font-weight: 560;
}
.panel .hint { margin-top: 10px; font-family: var(--mono); font-size: 10px; color: var(--faint); }

.toggle-btn, .back-btn {
  position: fixed; z-index: 21; top: 16px;
  width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center; cursor: pointer;
  background: color-mix(in srgb, var(--card) 80%, transparent);
  border: 1px solid var(--border); color: var(--accent);
  backdrop-filter: blur(8px);
}
.toggle-btn { right: 16px; }
.back-btn { right: 66px; color: var(--muted); text-decoration: none; }
.toggle-btn svg, .back-btn svg { width: 18px; height: 18px; }

@media (prefers-reduced-motion: reduce) {
  .card { transition: none; }
}