/* Light = Apple style. Dark follows the system unless the toggle picked one. */
:root {
  --bg: #f5f5f7;
  --bar: rgba(245, 245, 247, 0.72);
  --tile: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --line: rgba(0, 0, 0, 0.08);
  --seg: rgba(118, 118, 128, 0.12);
  --seg-on: #ffffff;
  --accent: #0071e3;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 6px 18px rgba(0, 0, 0, 0.08);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #000000;
  --bar: rgba(22, 22, 23, 0.72);
  --tile: #2c2c2e;
  --text: #f5f5f7;
  --muted: #98989d;
  --line: rgba(255, 255, 255, 0.1);
  --seg: rgba(118, 118, 128, 0.24);
  --seg-on: #636366;
  --accent: #2997ff;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 6px 18px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #000000;
    --bar: rgba(22, 22, 23, 0.72);
    --tile: #2c2c2e;
    --text: #f5f5f7;
    --muted: #98989d;
    --line: rgba(255, 255, 255, 0.1);
    --seg: rgba(118, 118, 128, 0.24);
    --seg-on: #636366;
    --accent: #2997ff;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 6px 18px rgba(0, 0, 0, 0.5);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.4 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
button { font: inherit; color: inherit; }

/* Top bar: frosted glass */
.bar {
  position: sticky; top: 0; z-index: 1;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px;
  padding: max(12px, env(safe-area-inset-top)) 20px 12px;
  background: var(--bar);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.bar h1 { margin: 0; font-size: 21px; font-weight: 600; letter-spacing: -0.02em; }
.actions { justify-self: end; display: flex; gap: 8px; }

.segmented { display: flex; padding: 2px; border-radius: 9px; background: var(--seg); }
.segmented button {
  border: 0; background: transparent; padding: 5px 18px; border-radius: 7px;
  font-size: 13px; font-weight: 500; cursor: pointer;
}
.segmented button[aria-pressed="true"] {
  background: var(--seg-on);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 0 0 0.5px rgba(0, 0, 0, 0.04);
}

.round {
  display: grid; place-items: center; width: 34px; height: 34px;
  border: 0; border-radius: 50%; background: var(--seg); color: var(--text); cursor: pointer;
}
.round svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.round .moon { fill: currentColor; stroke: none; }
.round .sun { display: none; }
:root[data-theme="dark"] .round .sun { display: block; }
:root[data-theme="dark"] .round .moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .round .sun { display: block; }
  :root:not([data-theme="light"]) .round .moon { display: none; }
}

/* Launchpad grid */
main { max-width: 1180px; margin: 0 auto; padding: 8px 24px 48px; }
.where { margin: 16px 0 0; color: var(--muted); font-size: 13px; text-align: center; }
h2 { margin: 28px 0 14px; font-size: 22px; font-weight: 600; letter-spacing: -0.02em; }
.grid {
  display: grid; gap: 32px 16px;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
}
.app {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text); text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.icon {
  display: grid; place-items: center; width: 116px; height: 116px;
  border-radius: 22.5%; background: var(--tile); box-shadow: var(--shadow);
  transition: transform 0.15s ease;
}
.icon img { width: 58%; height: 58%; }
.app:hover .icon { transform: scale(1.06); }
.app:active .icon { transform: scale(0.94); }
.label { font-size: 15px; font-weight: 500; text-align: center; }

@media (max-width: 520px) {
  .bar { grid-template-columns: 1fr auto; }
  .segmented { grid-column: 1 / -1; grid-row: 2; justify-self: center; }
  main { padding: 4px 16px 40px; }
  .grid { grid-template-columns: repeat(4, 1fr); gap: 22px 8px; }
  .icon { width: 64px; height: 64px; }
  .label { font-size: 12px; }
}

/* Login page */
body.login { display: grid; place-items: center; padding: 24px; }
.card {
  width: 100%; max-width: 340px; padding: 32px 28px;
  background: var(--tile); border-radius: 18px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 12px; text-align: center;
}
.card h1 { margin: 0; font-size: 28px; font-weight: 600; letter-spacing: -0.02em; }
.card .sub { margin: 0 0 8px; color: var(--muted); }
.card input {
  font: inherit; font-size: 17px; color: var(--text);
  padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg);
  outline: none;
}
.card input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
.card button {
  margin-top: 4px; padding: 12px; border: 0; border-radius: 12px;
  background: var(--accent); color: #fff; font-size: 17px; font-weight: 500; cursor: pointer;
}
.error { margin: 0; color: #ff3b30; font-size: 14px; }