/* 素笺 Sujian — shared tokens and primitives for the home and node pages. */

@font-face {
  font-family: "Geist";
  src: url("fonts/Geist-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Geist Mono";
  src: url("fonts/GeistMono-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* Country-flag glyphs only (regional indicators + tag sequences), so flags
   render on Windows, which ships no flag emoji. Twemoji art, CC-BY 4.0. */
@font-face {
  font-family: "Twemoji Country Flags";
  src: url("fonts/TwemojiCountryFlags.woff2") format("woff2");
  unicode-range: U+1F1E6-1F1FF, U+1F3F4, U+E0062-E0063, U+E0065, U+E0067, U+E006C, U+E006E, U+E0073-E0074, U+E0077, U+E007F;
  font-display: swap;
}

:root {
  color-scheme: light;
  --sj-bg: #fafaf8;
  --sj-surface: #ffffff;
  --sj-surface-2: #f2f2ee;
  --sj-line: #e3e3de;
  --sj-line-soft: #efefeb;
  --sj-track: #ecece7;
  --sj-text: #1b1b18;
  --sj-text-2: #55554f;
  --sj-muted: #76766f;
  --sj-faint: #9a9a92;
  --sj-ok: #2f7d4f;
  --sj-ok-soft: #e9f3ec;
  --sj-ok-ink: #22603c;
  --sj-warn: #b7791f;
  --sj-crit: #c0392b;
  --sj-crit-ink: #b3261e;
  --sj-up: #2f7d4f;
  --sj-down: #2f5d8a;
  --sj-ink: #3d3d38;
  --sj-ink-2: #a8a89f;
  --sj-invert-bg: #1b1b18;
  --sj-invert-text: #ffffff;
  --sj-radius: 14px;
  --sj-radius-sm: 8px;
  --sj-gutter: 56px;
  --sj-max: 1600px;
  --sj-font: "Geist", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --sj-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --sj-bg: #111210;
  --sj-surface: #181917;
  --sj-surface-2: #20211e;
  --sj-line: #2a2b28;
  --sj-line-soft: #222320;
  --sj-track: #2a2b28;
  --sj-text: #ecece6;
  --sj-text-2: #bdbdb5;
  --sj-muted: #93938b;
  --sj-faint: #6f6f68;
  --sj-ok: #4fb77a;
  --sj-ok-soft: #1c2c22;
  --sj-ok-ink: #7fd3a1;
  --sj-warn: #e0a64a;
  --sj-crit: #ef6b5b;
  --sj-crit-ink: #f08a7d;
  --sj-up: #4fb77a;
  --sj-down: #6c9fd4;
  --sj-ink: #d6d6cf;
  --sj-ink-2: #6f6f68;
  --sj-invert-bg: #ecece6;
  --sj-invert-text: #111210;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  background: var(--sj-bg);
  color: var(--sj-text);
  font-family: var(--sj-font);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
  color: inherit;
}

.sj-mono {
  font-family: var(--sj-mono);
  font-variant-numeric: tabular-nums;
}

.sj-muted { color: var(--sj-muted); }
.sj-faint { color: var(--sj-faint); }
.sj-ok { color: var(--sj-ok); }
.sj-warn { color: var(--sj-warn); }
.sj-crit { color: var(--sj-crit); }
.sj-up { color: var(--sj-up); }
.sj-down { color: var(--sj-down); }

.sj-container {
  width: 100%;
  max-width: var(--sj-max);
  margin: 0 auto;
  padding: 0 var(--sj-gutter);
}

/* Top bar */
.sj-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--sj-surface);
  border-bottom: 1px solid var(--sj-line);
}

.sj-topbar-inner {
  height: 60px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.sj-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
}

.sj-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sj-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--sj-ok);
}

.sj-live.is-off { color: var(--sj-crit); }

.sj-dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--sj-ok);
}

.sj-dot.is-off {
  background: transparent;
  border: 2px solid var(--sj-crit);
}

.sj-spacer { flex: 1 1 auto; }

.sj-icon-btn {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  flex-shrink: 0;
  border: 1px solid var(--sj-line);
  border-radius: 10px;
  background: var(--sj-surface);
  color: var(--sj-text-2);
  cursor: pointer;
}

.sj-icon-btn:hover { color: var(--sj-text); border-color: var(--sj-faint); }
.sj-icon-btn svg { width: 17px; height: 17px; }

.sj-search {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 260px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--sj-line);
  border-radius: 10px;
  background: var(--sj-surface);
  color: var(--sj-muted);
}

.sj-search input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--sj-text);
}

.sj-search svg { width: 16px; height: 16px; flex-shrink: 0; }

/* Chips and segmented controls */
.sj-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--sj-line);
  border-radius: var(--sj-radius-sm);
  background: var(--sj-surface);
  font-size: 13px;
  white-space: nowrap;
}

.sj-tag {
  display: inline-flex;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--sj-surface-2);
  color: var(--sj-text-2);
  font-size: 12px;
  white-space: nowrap;
}

.sj-flag {
  display: inline-block;
  margin-right: 7px;
  font-family: "Twemoji Country Flags", "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
}

.sj-segmented {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--sj-line);
  border-radius: 999px;
  background: var(--sj-surface);
}

.sj-segmented button {
  height: 28px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--sj-text-2);
  font-size: 12.5px;
  cursor: pointer;
  white-space: nowrap;
}

.sj-segmented button.is-active {
  background: var(--sj-invert-bg);
  color: var(--sj-invert-text);
}

/* Surfaces */
.sj-card {
  background: var(--sj-surface);
  border: 1px solid var(--sj-line);
  border-radius: var(--sj-radius);
}

.sj-hairline { height: 1px; background: var(--sj-line-soft); }

.sj-track {
  height: 3px;
  border-radius: 2px;
  background: var(--sj-track);
  overflow: hidden;
}

.sj-track > span {
  display: block;
  height: 100%;
  border-radius: 2px;
  background: var(--sj-ok);
  transition: width 0.5s ease;
}

.sj-track > span.is-warn { background: var(--sj-warn); }
.sj-track > span.is-crit { background: var(--sj-crit); }
.sj-track > span.is-off { background: var(--sj-faint); }

/* Footer */
.sj-footer {
  border-top: 1px solid var(--sj-line);
  background: var(--sj-surface);
  font-family: var(--sj-mono);
  font-size: 12px;
  color: var(--sj-muted);
}

.sj-footer-inner {
  min-height: 48px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.sj-version {
  color: var(--sj-faint);
  white-space: nowrap;
}

.sj-empty {
  padding: 48px 0;
  text-align: center;
  color: var(--sj-muted);
}

:focus-visible {
  outline: 2px solid var(--sj-down);
  outline-offset: 2px;
}

@media (min-width: 1680px) {
  :root { --sj-max: 1840px; }
}

@media (max-width: 900px) {
  :root { --sj-gutter: 16px; }
  .sj-search { width: auto; flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}