:root {
  --bg: #0b0b0b;
  --bg-elev: #141414;
  --text: #f6f6f6;
  --muted: #b6b6b6;
  --primary: #4f46e5;
  --good: #22c55e;
  --mid: #f59e0b;
  --bad: #ef4444;
  --card-radius: 14px;
  --gap: 16px;
}

:root.light {
  --bg: #f7f7f8;
  --bg-elev: #ffffff;
  --text: #0b0b0b;
  --muted: #5a5a5a;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 16px/1.4 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}

.app-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg);
  border-bottom: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
}

.app-title { font-weight: 700; letter-spacing: 0.3px; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--text) 12%, transparent);
  background: color-mix(in oklab, var(--bg) 80%, var(--bg-elev) 20%);
  color: var(--text);
}
.icon-btn:active { transform: translateY(1px); }

.container { padding: 16px; max-width: 720px; margin: 0 auto; }

.card {
  background: var(--bg-elev);
  border: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
  border-radius: var(--card-radius);
  padding: 16px;
  margin: 16px 0;
}

.auth-form { display: grid; gap: 12px; }
.auth-form label { display: grid; gap: 6px; }
.auth-form input {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid color-mix(in oklab, var(--text) 15%, transparent);
  background: transparent;
  color: var(--text);
}
.row { display: flex; gap: 8px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--text) 12%, transparent);
  background: color-mix(in oklab, var(--bg) 80%, var(--bg-elev) 20%);
  color: var(--text);
}
.btn.primary { background: var(--primary); border-color: var(--primary); color: white; }
.btn.google { background: #ffffff; color: #202124; border-color: #dadce0; }
.btn.google img { background: transparent; }

.or { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 8px; color: var(--muted); }
.or span { height: 1px; background: color-mix(in oklab, var(--text) 14%, transparent); display: block; }

.choices { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.big-choice {
  display: grid;
  place-items: center;
  gap: 6px;
  padding: 18px 10px;
  border-radius: 16px;
  border: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
  background: color-mix(in oklab, var(--bg) 75%, var(--bg-elev) 25%);
  color: var(--text);
  font-weight: 600;
}
.big-choice.good { outline: 2px solid color-mix(in oklab, var(--good) 60%, transparent); }
.big-choice.mid { outline: 2px solid color-mix(in oklab, var(--mid) 60%, transparent); }
.big-choice.bad { outline: 2px solid color-mix(in oklab, var(--bad) 60%, transparent); }
.big-choice .material-icons { font-size: 28px; }
.big-choice.good.active {
  background: color-mix(in oklab, var(--good) 25%, transparent);
  outline-color: color-mix(in oklab, var(--good) 70%, transparent);
}
.big-choice.mid.active {
  background: color-mix(in oklab, var(--mid) 25%, transparent);
  outline-color: color-mix(in oklab, var(--mid) 70%, transparent);
}
.big-choice.bad.active {
  background: color-mix(in oklab, var(--bad) 25%, transparent);
  outline-color: color-mix(in oklab, var(--bad) 70%, transparent);
}

.muted { color: var(--muted); }

.summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); padding-top: 8px; }
.summary > div { display: grid; gap: 4px; place-items: center; background: transparent; border-radius: 12px; padding: 10px; border: 1px solid color-mix(in oklab, var(--text) 10%, transparent); }
.summary .material-icons.good { color: var(--good); }
.summary .material-icons.mid { color: var(--mid); }
.summary .material-icons.bad { color: var(--bad); }

.hidden { display: none; }

.cal-header { display:flex; align-items:center; justify-content:space-between; gap:8px; }
.cal-title { font-weight: 700; }
.cal-weekdays { display:grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 10px; color: var(--muted); font-size: 12px; }
.cal-weekdays > div { text-align:center; }
.calendar-grid { display:grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 8px; }
.day-cell { aspect-ratio: 1/1; border-radius: 10px; display:grid; place-items:center; font-size: 12px; border: 1px solid color-mix(in oklab, var(--text) 10%, transparent); }
.day-cell.none { background: color-mix(in oklab, var(--bg) 80%, var(--bg-elev) 20%); }
.day-cell.good { background: color-mix(in oklab, var(--good) 30%, transparent); border-color: color-mix(in oklab, var(--good) 60%, transparent); }
.day-cell.mid { background: color-mix(in oklab, var(--mid) 30%, transparent); border-color: color-mix(in oklab, var(--mid) 60%, transparent); }
.day-cell.bad { background: color-mix(in oklab, var(--bad) 30%, transparent); border-color: color-mix(in oklab, var(--bad) 60%, transparent); }
.day-cell.out { opacity: 0.35; }
.cal-legend { display:flex; align-items:center; gap: 12px; margin-top: 10px; font-size: 12px; }
.cal-legend .dot { display:inline-block; width:10px; height:10px; border-radius:999px; vertical-align:middle; margin-right: 4px; background: color-mix(in oklab, var(--text) 18%, transparent); }
.cal-legend .dot.good { background: var(--good); }
.cal-legend .dot.mid { background: var(--mid); }
.cal-legend .dot.bad { background: var(--bad); }
.cal-legend .dot.none { background: color-mix(in oklab, var(--text) 18%, transparent); }

.settings { width: min(560px, 96vw); border: none; border-radius: 16px; padding: 0; color: var(--text); }
.settings::backdrop { background: rgba(0,0,0,0.6); }
.settings-header { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid color-mix(in oklab, var(--text) 10%, transparent); background: var(--bg-elev); border-radius: 16px 16px 0 0; }
.settings-body { padding: 16px; background: var(--bg-elev); border-radius: 0 0 16px 16px; display: grid; gap: 12px; }
.switch { display: flex; align-items: center; gap: 10px; }
.streaks { display:grid; gap:6px; margin-top: 4px; }
.streak-line { display:flex; align-items:center; gap:8px; }

/* Credits line in settings */
#makerCredits { margin-top: 12px; font-size: 13px; }

@media (min-width: 720px) {
  .container { padding: 24px; }
}

/* Mobile-first compaction */
@media (max-width: 420px) {
  body { font-size: 14px; }
  .container { padding: 8px; }
  .app-bar { padding: 10px 12px; }
  .icon-btn { width: 36px; height: 36px; }
  .card { padding: 12px; margin: 8px 0; }
  .auth-form input { padding: 10px 12px; }
  .btn { padding: 10px 12px; gap: 6px; }
  .choices { gap: 8px; }
  .big-choice { padding: 12px 6px; border-radius: 12px; }
  .big-choice .material-icons { font-size: 22px; }
  .summary { gap: 8px; }
  .summary > div { padding: 8px; }
  .cal-header { gap: 4px; }
  .cal-title { font-size: 16px; text-align: center; }
  .cal-weekdays { gap: 4px; font-size: 11px; }
  .calendar-grid { gap: 4px; }
  .day-cell { border-radius: 8px; font-size: 11px; }
  .cal-legend { gap: 10px; font-size: 11px; flex-wrap: wrap; }
}

/* Very small screens */
@media (max-width: 360px) {
  .app-title { font-size: 16px; }
  .big-choice { padding: 10px 4px; }
  .cal-weekdays { font-size: 10px; }
  .day-cell { font-size: 10px; }
}

/* ===== Boot splash (MOBILE-FIRST) ===== */
/* Bigger spinner by default, truly centered on small screens */
.boot-splash {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  color: var(--text);

  /* Flex centers the spinner itself at the visual middle,
     with the logo sitting just below it. */
  display: flex;
  flex-direction: column;
  justify-content: center;   /* centers vertically */
  align-items: center;       /* centers horizontally */
  gap: 12px;

  /* Ensure true viewport height on mobile browsers with dynamic bars */
  min-height: 100svh;
}

/* Keep the logo subtle on mobile so the spinner dominates the focus */
.boot-logo {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.4px;
  opacity: 0.9;
}

/* Mobile-first: larger spinner, closer to the middle */
.boot-spinner {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 4px solid color-mix(in oklab, var(--text) 18%, transparent);
  border-top-color: var(--primary);
  animation: gd-spin 0.7s linear infinite;
}

/* Scale down progressively on larger screens if desired */
@media (min-width: 480px) {
  .boot-spinner { width: 48px; height: 48px; border-width: 4px; }
  .boot-logo { font-size: 22px; }
}
@media (min-width: 768px) {
  .boot-spinner { width: 40px; height: 40px; border-width: 3px; }
  .boot-logo { font-size: 24px; }
}

@keyframes gd-spin { to { transform: rotate(360deg); } }