:root { color-scheme: dark; --bg: #101522; --surface: #1a2233; --text: #f6f8fc; --muted: #b7c2d8; --accent: #70e1c8; --border: #34425d; }
:root[data-theme='light'] { color-scheme: light; --bg: #f6f8fc; --surface: #fff; --text: #142033; --muted: #52637c; --accent: #087d6a; --border: #cad4e5; }
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.5; }
button, select, input { font: inherit; } button, select, input[type='checkbox'] { accent-color: var(--accent); }
button, select { min-height: 44px; border-radius: .75rem; border: 1px solid var(--border); color: var(--text); background: var(--surface); padding: .55rem .8rem; }
button { cursor: pointer; } button:focus-visible, select:focus-visible, input:focus-visible, a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.skip-link { position: fixed; inset: .75rem auto auto .75rem; transform: translateY(-200%); z-index: 2; background: var(--text); color: var(--bg); padding: .6rem .8rem; border-radius: .5rem; }.skip-link:focus { transform: none; }
.page-shell { width: min(100% - 2rem, 1120px); margin: 0 auto; padding: clamp(1rem, 3vw, 2.5rem) 0 3rem; }.site-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }.header-actions { display: flex; align-items: end; gap: .65rem; }.eyebrow { margin: 0; color: var(--accent); font-size: .85rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }.language-control { display: grid; gap: .25rem; color: var(--muted); font-size: .85rem; }.clock-panel { display: grid; align-content: center; min-height: min(62vh, 640px); padding: clamp(1.5rem, 5vw, 4.5rem) 0; text-align: center; }.clock-copy h1, .clock-copy p { margin-inline: auto; }.clock-copy h1 { margin-block: 0 .35rem; font-size: clamp(1.5rem, 3vw, 2.25rem); }.clock-copy p, .device-note, .saved-note, .about p { color: var(--muted); }.time { display: block; margin: clamp(1.25rem, 4vw, 3rem) auto .75rem; font-variant-numeric: tabular-nums; font-size: clamp(3.25rem, 15vw, 11rem); font-weight: 800; letter-spacing: -.075em; line-height: .9; white-space: nowrap; }.date-row { display: flex; justify-content: center; gap: .75rem; margin: 0; font-size: clamp(1rem, 2vw, 1.35rem); }.date-row span + span::before { content: '·'; margin-inline-end: .75rem; }.device-note { max-width: 48rem; margin: 1.5rem auto 0; font-size: .92rem; }.settings, .about { border-top: 1px solid var(--border); padding: 1.5rem 0; }.settings h2, .about h2 { margin: 0 0 1rem; font-size: 1.1rem; }.setting-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; } fieldset { min-inline-size: 0; margin: 0; padding: 0; border: 0; } legend { margin-bottom: .45rem; color: var(--muted); font-size: .9rem; }.segmented { display: flex; gap: .5rem; }.segmented button { flex: 1; }.segmented button.active, .fullscreen-button { background: var(--accent); border-color: var(--accent); color: #08241f; font-weight: 750; }.toggle { display: flex; min-height: 44px; align-items: center; justify-content: center; gap: .65rem; padding: .55rem .8rem; border: 1px solid var(--border); border-radius: .75rem; background: var(--surface); }.toggle input { width: 1.2rem; height: 1.2rem; }.fullscreen-button { min-width: 132px; }.status-message { min-height: 1.5em; margin: .4rem 0 0; color: #ffb4a6; }.saved-note { margin: .5rem 0 0; font-size: .88rem; }.about { max-width: 760px; }.about p { margin-block: .6rem; }
.fullscreen-guide { margin-top: .85rem; color: var(--muted); font-size: .9rem; }.fullscreen-guide summary { cursor: pointer; color: var(--text); font-weight: 700; }.fullscreen-guide p { margin: .65rem 0; }.fullscreen-guide dl { display: grid; gap: .65rem; margin: .75rem 0; }.fullscreen-guide dt { color: var(--text); font-weight: 700; }.fullscreen-guide dd { margin: .2rem 0 0; }.fullscreen-guide kbd { border: 1px solid var(--border); border-radius: .3rem; background: var(--surface); color: var(--text); padding: .08rem .32rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
#clock:fullscreen { width: 100%; height: 100%; min-height: 100%; margin: 0; padding: 0; background: var(--bg); color: var(--text); place-items: center; }#clock:fullscreen .clock-copy, #clock:fullscreen .date-row, #clock:fullscreen .device-note { display: none; }#clock:fullscreen .time { margin: 0; font-size: min(25vw, 45vh); }
@media (min-width: 720px) { .setting-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: end; }.clock-panel { min-height: 66vh; } }
@media (max-width: 620px) { .page-shell { width: min(100% - 1.25rem, 1120px); }.site-header { align-items: flex-start; }.header-actions { flex-wrap: wrap; justify-content: flex-end; }.fullscreen-button { order: -1; }.time { font-size: clamp(3rem, 16vw, 5rem); }.setting-grid { grid-template-columns: 1fr; }.date-row { flex-wrap: wrap; gap: .25rem .55rem; } }