/* CallTime site. No web fonts, no scripts: system faces only.
   Status colours (free / soon / away) are reserved for availability. */

:root {
  --sky: #7aaaf5;
  --deep: #2a5fc8;
  --ink: #15213f;
  --paper: #f6f8fd;
  --surface: #ffffff;
  --muted: #55607a;
  --line: #dde3f0;
  --free: #2fbf8f;
  --soon: #e0a800;
  --away: #e8645a;
  --asleep: #c9d3e8;
  --link: var(--deep);
  --rounded: ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --text: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8eefc;
    --paper: #0f1730;
    --surface: #17213f;
    --muted: #a3afcb;
    --line: #2a3658;
    --asleep: #2c3a62;
    --link: var(--sky);
  }
}

*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--text);
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--link); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--sky); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 {
  font-family: var(--rounded);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.25rem, 5.5vw, 3.75rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.25rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 600; }
p { margin: 0 0 1em; }

.wrap { width: min(72rem, 100% - 2rem); margin-inline: auto; }
.prose { max-width: 40rem; }
.time { font-variant-numeric: tabular-nums; }

.skip {
  position: absolute; top: 0.5rem; inset-inline-start: 0.5rem; z-index: 20;
  background: var(--surface); padding: 0.5rem 0.75rem;
  transform: translateY(-200%);
}
.skip:focus { transform: none; }

/* Header */
.site-head { padding-block: 1.25rem; }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  color: var(--ink); text-decoration: none;
  font: 700 1.25rem/1 var(--rounded);
}
.brand img { width: 2rem; height: 2rem; }
.site-nav { display: flex; align-items: center; gap: 1.25rem; }
.site-nav a { color: var(--ink); text-decoration: none; font-weight: 500; }
.site-nav a:hover,
.site-nav a[aria-current="page"] { color: var(--link); text-decoration: underline; }

/* Hero */
.hero { padding-block: 2.5rem 4rem; }
.hero .wrap {
  display: grid; gap: 3rem; align-items: center;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}
.lede { font-size: 1.25rem; color: var(--muted); max-width: 34rem; }
.soon-note {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-top: 0.75rem; font-weight: 600;
}
.dot { width: 0.7rem; height: 0.7rem; border-radius: 50%; flex: none; display: inline-block; }
.dot-free { background: var(--free); }
.dot-soon { background: var(--soon); }
.dot-away { background: var(--away); }
.dot-asleep { background: var(--asleep); }

.panel-shot {
  margin: 0; justify-self: center;
  padding: 1.5rem;
  border-radius: 1.75rem;
  background: linear-gradient(160deg, var(--sky), var(--deep));
}
.panel-shot img {
  width: 426px;
  border-radius: 0.9rem;
  box-shadow: 0 18px 40px rgb(10 25 70 / 0.35);
}

/* Day strip */
.day { padding-block: 4rem; background: var(--surface); border-block: 1px solid var(--line); }
.strip { margin: 2rem 0 0; }
.strip-rows { position: relative; display: grid; gap: 0.9rem; }
.strip-row {
  display: grid; align-items: center; gap: 1rem;
  grid-template-columns: 12rem minmax(0, 1fr);
}
.who { line-height: 1.3; }
.who strong { display: block; font-family: var(--rounded); }
.who span { color: var(--muted); font-size: 0.95rem; }

.bar {
  position: relative; height: 2.25rem; border-radius: 0.6rem; overflow: hidden;
  display: grid; grid-template-columns: repeat(96, minmax(0, 1fr));
  background: var(--soon);
}
.seg { grid-row: 1; }
.seg.work { background: var(--free); }
.seg.sleep { background: var(--asleep); }

/* Columns are 15-minute slots on a shared UTC axis (line n = n/4 h). */
.avery .w1 { grid-column: 69 / 97; }
.avery .w2 { grid-column: 1 / 5; }
.avery .s1 { grid-column: 29 / 61; }
.luis .w1 { grid-column: 33 / 65; }
.luis .s1 { grid-column: 89 / 97; }
.luis .s2 { grid-column: 1 / 25; }
.maya .w1 { grid-column: 15 / 47; }
.maya .s1 { grid-column: 71 / 97; }
.maya .s2 { grid-column: 1 / 7; }

/* Overlay sits over the bar column only. */
.strip-overlay {
  position: absolute; inset-block: 0; inset-inline: 13rem 0; pointer-events: none;
  display: grid; grid-template-columns: repeat(96, minmax(0, 1fr));
}
.overlap {
  grid-column: 33 / 47; grid-row: 1;
  margin-block: -0.4rem;
  border: 2px dashed var(--ink); border-radius: 0.6rem;
  opacity: 0.55;
}
.now { grid-column: 54 / 55; grid-row: 1; position: relative; margin-block: -0.6rem; }
.now::before {
  content: ""; position: absolute; inset: 0 auto 0 50%;
  width: 3px; margin-left: -1.5px; border-radius: 2px; background: var(--ink);
}

.legend {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem;
  list-style: none; padding: 0; margin: 1.5rem 0 0;
  color: var(--muted); font-size: 0.95rem;
}
.legend li { display: inline-flex; align-items: center; gap: 0.5rem; }
.swatch { width: 1.4rem; height: 0.7rem; border-radius: 0.25rem; display: inline-block; }
.swatch.work { background: var(--free); }
.swatch.off { background: var(--soon); }
.swatch.sleep { background: var(--asleep); }
.swatch.both { border: 2px dashed var(--ink); opacity: 0.7; }
.swatch.nowline { width: 3px; height: 1rem; background: var(--ink); }
.strip figcaption { margin-top: 1.25rem; max-width: 44rem; }

/* Features */
.features { padding-block: 4.5rem 3rem; }
.feature-list {
  display: grid; gap: 2rem 3rem; margin: 2rem 0 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.feature-list div { border-inline-start: 3px solid var(--sky); padding-inline-start: 1.1rem; }
.feature-list dt { font: 600 1.15rem/1.3 var(--rounded); margin-bottom: 0.35rem; }
.feature-list dd { margin: 0; color: var(--muted); }

/* Platforms */
.platforms { padding-block: 3rem 4.5rem; }
.platform-grid {
  display: grid; gap: 2.5rem; margin-top: 2rem; align-items: start;
  grid-template-columns: 1.15fr 1fr 1fr;
}
.platform figure { margin: 0 0 1rem; }
.platform img { border-radius: 1rem; border: 1px solid var(--line); }
.platform .mac-shot { border-radius: 0.75rem; }
.platform h3 { margin-bottom: 0.3rem; }
.platform p { color: var(--muted); margin-bottom: 0.5rem; }
.status { display: inline-flex; align-items: center; gap: 0.45rem; font-weight: 600; color: var(--ink); }
.server-note { margin-top: 2.5rem; max-width: 44rem; }

/* Privacy band */
.privacy-band {
  padding-block: 3.5rem;
  background: linear-gradient(160deg, var(--deep), #1b3f8f);
  color: #fff;
}
.privacy-band a { color: #fff; }
.privacy-band p { max-width: 40rem; font-size: 1.125rem; }

/* Legal / support pages */
.doc { padding-block: 2rem 4rem; }
.doc h1 { font-size: clamp(2rem, 4.5vw, 2.75rem); }
.doc h2 { font-size: 1.4rem; margin-top: 2.25rem; }
.doc ul { padding-inline-start: 1.25rem; }
.doc li { margin-bottom: 0.4rem; }
.doc .meta { color: var(--muted); }
.doc details { border-top: 1px solid var(--line); padding-block: 0.9rem; }
.doc details:last-of-type { border-bottom: 1px solid var(--line); }
.doc summary { cursor: pointer; font-weight: 600; }
.doc details p { margin: 0.6rem 0 0; color: var(--muted); }

/* Footer */
.site-foot { padding-block: 2rem 3rem; color: var(--muted); font-size: 0.95rem; }
.site-foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; }
.site-foot a { color: var(--muted); }

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 2rem; }
  .panel-shot { justify-self: stretch; padding: 1rem; }
  .panel-shot img { width: 100%; }
  .feature-list { grid-template-columns: 1fr; }
  .platform-grid { grid-template-columns: 1fr; max-width: 30rem; }
  .strip-row { grid-template-columns: 1fr; gap: 0.35rem; }
  .strip-overlay { display: none; }
  .legend .now-key, .legend .both-key { display: none; }
}

/* Buy me a coffee */
.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 3.25rem; padding: 0.8rem 1.6rem;
  border-radius: 999px;
  background: var(--deep); color: #fff;
  font: 600 1.125rem/1.2 var(--rounded);
  text-decoration: none; white-space: nowrap;
  box-shadow: 0 6px 18px rgb(42 95 200 / 0.35);
}
.button:hover { background: #224fa8; text-decoration: none; }
.button:active { transform: translateY(1px); }
.coffee { padding-block: 3.5rem; border-top: 1px solid var(--line); }
.coffee-inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 1.5rem 3rem;
}
.coffee-inner > div { max-width: 38rem; }
.coffee p { color: var(--muted); font-size: 1.125rem; margin: 0; }
.coffee-note {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem;
  margin-block: 1.5rem 0.5rem; padding: 1.25rem 1.5rem;
  border-radius: 1rem; background: var(--surface); border: 1px solid var(--line);
}
.coffee-note p { margin: 0; flex: 1 1 18rem; }
@media (prefers-color-scheme: dark) {
  .button { background: var(--sky); color: #0f1730; box-shadow: none; }
  .button:hover { background: #9cc0f8; }
}
@media (max-width: 860px) {
  .coffee .button { width: 100%; }
}

/* Buy Me a Coffee's own yellow; same in light and dark. */
.button-coffee,
.button-coffee:hover { color: #000; }
.button-coffee {
  gap: 0.55rem;
  background: #ffdd00;
  box-shadow: 0 6px 18px rgb(120 95 0 / 0.25);
}
.button-coffee:hover { background: #ffe633; }
.button-coffee .cup { flex: none; }
@media (prefers-color-scheme: dark) {
  .button-coffee { background: #ffdd00; color: #000; box-shadow: none; }
  .button-coffee:hover { background: #ffe633; }
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

/* Language menu (no script: a details disclosure) */
.lang { position: relative; }
.lang summary {
  display: inline-flex; align-items: center; gap: 0.4rem;
  cursor: pointer; list-style: none; font-weight: 500;
  padding: 0.3rem 0.6rem; border-radius: 999px; border: 1px solid var(--line);
}
.lang summary::-webkit-details-marker { display: none; }
.lang[open] summary { border-color: var(--sky); }
.lang ul {
  position: absolute; inset-inline-end: 0; top: calc(100% + 0.4rem); z-index: 10;
  min-width: 12rem; max-height: 70vh; overflow: auto;
  margin: 0; padding: 0.4rem; list-style: none;
  background: var(--surface); border: 1px solid var(--line); border-radius: 0.8rem;
  box-shadow: 0 12px 32px rgb(10 25 70 / 0.18);
}
.lang li a {
  display: block; padding: 0.4rem 0.7rem; border-radius: 0.5rem;
  color: var(--ink); text-decoration: none;
}
.lang li a:hover { background: var(--paper); }
.lang li a[aria-current] { font-weight: 700; color: var(--link); }

/* Landing questions and answers */
.faq { padding-block: 1rem 4rem; }
.qa-list {
  display: grid; gap: 1.75rem 3rem; margin-top: 1.5rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.qa-list h3 { font-size: 1.15rem; margin-bottom: 0.35rem; }
.qa-list p { color: var(--muted); margin: 0; }
@media (max-width: 860px) {
  .qa-list { grid-template-columns: 1fr; }
  .site-nav { gap: 0.9rem; }
}
@media (max-width: 420px) {
  .lang summary { padding-inline: 0.5rem; }
  .brand { font-size: 1.1rem; }
}

/* Right-to-left: keep times and the timeline readable. */
[dir="rtl"] .time { direction: ltr; unicode-bidi: isolate; }

/* CJK: break headings between phrases, not inside words. */
:lang(ja) :is(h1, h2, h3),
:lang(ko) :is(h1, h2, h3),
:lang(zh) :is(h1, h2, h3) { word-break: auto-phrase; }
:lang(ko) :is(h1, h2, h3) { word-break: keep-all; }