/* =========================================================
   raycer - monotone, thin-line aesthetic
   colors driven by CSS custom properties; per-user accent
   ========================================================= */

:root {
  --bg: #fafafa;
  --bg-elev: #ffffff;
  --fg: #0a0a0a;
  --fg-mute: #6b6b6b;
  --fg-faint: #b8b8b8;
  --line: #d8d8d8;
  --line-strong: #1a1a1a;

  --accent-ray: #c47a1c;
  --accent-cer: #1c8a8a;
  --accent: var(--accent-ray);

  --hairline: 1px;
  --radius: 2px;
  --gap-1: 4px;
  --gap-2: 8px;
  --gap-3: 16px;
  --gap-4: 24px;
  --gap-5: 32px;

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto, "Helvetica Neue",
    Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Monaco, Consolas, monospace;
}

:root[data-theme="dark"],
:root:not([data-theme]) {
  --bg: #0a0a0a;
  --bg-elev: #131313;
  --fg: #f3f3f3;
  --fg-mute: #8a8a8a;
  --fg-faint: #3a3a3a;
  --line: #2a2a2a;
  --line-strong: #e8e8e8;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg: #fafafa;
    --bg-elev: #ffffff;
    --fg: #0a0a0a;
    --fg-mute: #6b6b6b;
    --fg-faint: #b8b8b8;
    --line: #d8d8d8;
    --line-strong: #1a1a1a;
  }
}

:root[data-theme="light"] {
  --bg: #fafafa;
  --bg-elev: #ffffff;
  --fg: #0a0a0a;
  --fg-mute: #6b6b6b;
  --fg-faint: #b8b8b8;
  --line: #d8d8d8;
  --line-strong: #1a1a1a;
}

body[data-user="ray"] { --accent: var(--accent-ray); }
body[data-user="cer"] { --accent: var(--accent-cer); }

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

body {
  min-height: 100dvh;
  overscroll-behavior: none;
}

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

#app { min-height: 100dvh; display: flex; flex-direction: column; }

/* ---- Landing ---- */

.landing {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--gap-4);
  padding: var(--gap-5);
}

.landing__sub {
  color: var(--fg-mute);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin: 0;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: var(--gap-2);
  font-family: var(--font-mono);
  font-weight: 300;
  letter-spacing: -0.02em;
  user-select: none;
}

.brand--xl { font-size: clamp(48px, 14vw, 132px); }
.brand--sm { font-size: 18px; gap: 2px; }

.brand__user {
  display: inline-block;
  padding: 0 0.18em;
  border-bottom: var(--hairline) solid transparent;
  transition: color 120ms ease, border-color 120ms ease;
  color: var(--fg-mute);
}

.brand--xl .brand__user {
  padding: 0.1em 0.35em;
  border: var(--hairline) solid var(--line);
  color: var(--fg);
}

.brand--xl .brand__user--ray:hover,
.brand--xl .brand__user--ray:focus-visible {
  color: var(--accent-ray);
  border-color: var(--accent-ray);
  outline: none;
}
.brand--xl .brand__user--cer:hover,
.brand--xl .brand__user--cer:focus-visible {
  color: var(--accent-cer);
  border-color: var(--accent-cer);
  outline: none;
}

.brand__slash {
  color: var(--fg-faint);
  font-weight: 200;
}

body[data-user="ray"] .brand__user[data-brand="ray"] { color: var(--accent-ray); }
body[data-user="cer"] .brand__user[data-brand="cer"] { color: var(--accent-cer); }

/* ---- Topbar ---- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--gap-3);
  border-bottom: var(--hairline) solid var(--line);
}

.topbar__meta {
  display: flex;
  align-items: center;
  gap: var(--gap-3);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-mute);
  letter-spacing: 0.06em;
}

.countdown {
  text-transform: uppercase;
}

.iconbtn {
  background: transparent;
  border: var(--hairline) solid var(--line);
  border-radius: var(--radius);
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}
.iconbtn:hover { color: var(--fg); border-color: var(--fg-mute); }

/* ---- Stats ---- */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  border-bottom: var(--hairline) solid var(--line);
}

.stat {
  padding: var(--gap-3);
  border-right: var(--hairline) solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat:last-child { border-right: none; }

.stat__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-mute);
}

.stat__row {
  display: flex;
  align-items: baseline;
  gap: var(--gap-3);
  font-family: var(--font-mono);
}

.stat__user {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 13px;
}

.stat__user-tag {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-mute);
}

.stat__user--ray .stat__user-tag { color: var(--accent-ray); }
.stat__user--cer .stat__user-tag { color: var(--accent-cer); }

.stat__num { font-size: 18px; color: var(--fg); }
.stat__num-sub { color: var(--fg-mute); font-size: 11px; }

/* ---- Calendar ---- */

.calendar-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: var(--gap-3);
  gap: var(--gap-2);
}

.cal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--gap-2);
}

.cal-title {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg);
}

.cal-nav {
  display: flex;
  gap: var(--gap-1);
}

.cal-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 0;
  border: var(--hairline) solid var(--line);
  min-height: 0;
}

.cal-dow {
  display: contents;
}

.cal-dow__cell {
  padding: 4px 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-mute);
  border-bottom: var(--hairline) solid var(--line);
  border-right: var(--hairline) solid var(--line);
  background: var(--bg-elev);
}
.cal-dow__cell:nth-child(7n) { border-right: none; }

.cal-cell {
  position: relative;
  padding: 4px 6px;
  border-right: var(--hairline) solid var(--line);
  border-top: var(--hairline) solid var(--line);
  background: var(--bg);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 56px;
  transition: background 120ms ease;
}
.cal-cell:nth-child(7n) { border-right: none; }
.cal-cell:hover:not(.cal-cell--off):not(.cal-cell--future) { background: var(--bg-elev); }

.cal-cell--off { background: transparent; cursor: default; opacity: 0.35; }
.cal-cell--future { cursor: not-allowed; }
.cal-cell--out-of-range { opacity: 0.45; }

.cal-cell__date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg);
  letter-spacing: 0.04em;
}
.cal-cell--future .cal-cell__date,
.cal-cell--out-of-range .cal-cell__date { color: var(--fg-mute); }

.cal-cell--today .cal-cell__date {
  color: var(--accent);
}
.cal-cell--today {
  box-shadow: inset 0 0 0 var(--hairline) var(--accent);
}

.cal-cell__grid {
  align-self: flex-end;
  display: grid;
  grid-template-columns: 10px 10px;
  grid-template-rows: 10px 10px;
  gap: 2px;
}

.cal-cell__dot {
  width: 10px;
  height: 10px;
  border: var(--hairline) solid var(--fg-faint);
  background: transparent;
  border-radius: 1px;
}
.cal-cell__dot--on {
  background: var(--fg);
  border-color: var(--fg);
}
.cal-cell__dot--ray.cal-cell__dot--on { background: var(--accent-ray); border-color: var(--accent-ray); }
.cal-cell__dot--cer.cal-cell__dot--on { background: var(--accent-cer); border-color: var(--accent-cer); }

/* ---- Action bar ---- */

.actionbar {
  border-top: var(--hairline) solid var(--line);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  background: var(--bg-elev);
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.action {
  position: relative;
  padding: var(--gap-3) var(--gap-3);
  border-right: var(--hairline) solid var(--line);
  background: transparent;
  border-top: 0;
  border-bottom: 0;
  border-left: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--gap-1);
  cursor: pointer;
  text-align: left;
  transition: background 120ms ease;
}
.action:last-child { border-right: none; }
.action:hover { background: var(--bg); }

.action__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.action__title {
  font-size: 16px;
  color: var(--fg);
}
.action__state {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.action--done {
  background:
    linear-gradient(0deg, color-mix(in srgb, var(--accent) 8%, transparent), color-mix(in srgb, var(--accent) 8%, transparent));
}
.action--done .action__title { color: var(--accent); }
.action--done .action__state { color: var(--accent); }

.action--done::before {
  content: "";
  position: absolute;
  inset: 0;
  border-bottom: 2px solid var(--accent);
  pointer-events: none;
}

/* ---- Popover ---- */

.popover-root {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--bg) 60%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--gap-3);
  z-index: 50;
}
.popover-root[hidden] {
  display: none;
}

.popover {
  background: var(--bg-elev);
  border: var(--hairline) solid var(--line);
  border-radius: var(--radius);
  padding: var(--gap-3);
  width: min(360px, 100%);
  display: flex;
  flex-direction: column;
  gap: var(--gap-3);
}

.popover__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.popover__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg);
}
.popover__close {
  background: none;
  border: none;
  color: var(--fg-mute);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
}

.popover__list {
  display: flex;
  flex-direction: column;
  gap: var(--gap-2);
}

.popover__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: var(--hairline) solid var(--line);
  padding: var(--gap-2) var(--gap-3);
  cursor: pointer;
  background: transparent;
  text-align: left;
  font: inherit;
  color: inherit;
}
.popover__row:hover { border-color: var(--fg-mute); }
.popover__row--on { border-color: var(--accent); color: var(--accent); }
.popover__row__name { font-size: 14px; }
.popover__row__state {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-mute);
}
.popover__row--on .popover__row__state { color: var(--accent); }

.popover__hint {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-mute);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---- Misc ---- */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

@media (max-width: 640px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { border-bottom: var(--hairline) solid var(--line); }
  .stat:nth-child(2n) { border-right: none; }
  .actionbar { grid-template-columns: 1fr; }
  .action { border-right: none; border-bottom: var(--hairline) solid var(--line); }
  .action:last-child { border-bottom: none; }
  .cal-cell { min-height: 48px; }
  .cal-cell__grid { grid-template-columns: 8px 8px; grid-template-rows: 8px 8px; }
  .cal-cell__dot { width: 8px; height: 8px; }
}