:root {
  --soc-ink: #102a2f;
  --soc-deep: #0a1d21;
  --soc-teal: #197078;
  --soc-cyan: #abdadd;
  --soc-orange: #f0a04b;
  --md-primary-fg-color: #102a2f;
  --md-primary-fg-color--light: #17454a;
  --md-primary-fg-color--dark: #0a1d21;
  --md-accent-fg-color: #d97706;
  --md-default-bg-color: #f7f5ef;
  --md-code-bg-color: #ece9e1;
}

[data-md-color-scheme="slate"] {
  --md-default-bg-color: #0d1518;
  --md-default-fg-color: rgba(238, 241, 239, .9);
  --md-default-fg-color--light: rgba(238, 241, 239, .62);
  --md-code-bg-color: #111d21;
  --md-typeset-a-color: #78c8cd;
}

body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
.md-header { background: linear-gradient(105deg, var(--soc-deep), var(--soc-ink)); box-shadow: none; }
.md-tabs { background: var(--soc-ink); }
.md-search__form { border: 1px solid rgba(171, 218, 221, .16); background: rgba(255, 255, 255, .07); }
.md-typeset h1, .md-typeset h2, .md-typeset h3 { letter-spacing: -.025em; }
.md-typeset h1 { color: var(--soc-ink); font-weight: 800; }
[data-md-color-scheme="slate"] .md-typeset h1 { color: #f3f0e8; }
.md-typeset h2 { padding-bottom: .45rem; border-bottom: 1px solid rgba(16, 42, 47, .13); font-weight: 750; }
.md-typeset code { border: 1px solid rgba(16, 42, 47, .08); border-radius: .22rem; }
.md-typeset pre > code { border: 0; }
.md-nav__link--active { font-weight: 700; }
.md-banner { background: #07171a; color: rgba(244, 239, 230, .74); }

.soc-reading-track { position: fixed; z-index: 20; top: 0; left: 0; width: 100%; height: 3px; background: transparent; pointer-events: none; }
.soc-reading-bar { display: block; width: 0; height: 100%; background: linear-gradient(90deg, #3fb950, #58a6ff, #bc8cff); box-shadow: 0 0 .6rem rgba(88, 166, 255, .35); transition: width 80ms linear; }
.soc-side-tools { position: sticky; z-index: 2; top: 0; margin: .35rem .6rem 1rem; padding: .75rem; border: 1px solid var(--md-default-fg-color--lightest); border-radius: .5rem; background: var(--md-code-bg-color); box-shadow: 0 .35rem .8rem rgba(15, 23, 42, .06); }
.soc-side-tools__head { display: flex; align-items: center; justify-content: space-between; gap: .5rem; margin-bottom: .5rem; color: var(--md-default-fg-color--light); font: 700 .5rem/1.3 "SFMono-Regular", Consolas, monospace; letter-spacing: .06em; text-transform: uppercase; }
.soc-side-tools__head output { color: var(--md-accent-fg-color); font-size: .56rem; }
.soc-side-progress { height: .22rem; overflow: hidden; border-radius: 999px; background: var(--md-default-fg-color--lightest); }
.soc-side-progress span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #059669, #2563eb); transition: width 80ms linear; }
.md-sidebar--primary .md-nav__item--nested > .md-nav__link { font-weight: 700; }
.md-sidebar--primary .md-nav__item--nested > .md-nav__link .md-nav__icon { border-radius: .28rem; }
.md-sidebar--primary .md-nav__item--nested > .md-nav__link:hover .md-nav__icon { background: var(--md-code-bg-color); }

.soc-announce { display: flex; align-items: center; justify-content: space-between; gap: 1rem; width: min(100%, 76rem); margin: 0 auto; font-size: .58rem; }
.soc-announce a { display: inline-flex; align-items: center; gap: .42rem; color: #fff; }
.soc-announce a:hover { color: var(--soc-orange); }
.soc-announce i, .soc-announce em { color: rgba(171, 218, 221, .62); font-style: normal; }
.soc-announce em { font-family: monospace; letter-spacing: .08em; text-transform: uppercase; }
.soc-announce-mark { display: inline-grid; place-items: center; width: 1.45rem; height: 1.45rem; border: 1px solid rgba(171, 218, 221, .34); color: var(--soc-cyan); font: 800 .48rem/1 monospace; }

.soc-home-hero { position: relative; isolation: isolate; overflow: hidden; margin: 0 0 4rem; padding: clamp(2rem, 6vw, 4.5rem); color: #f4efe6; background: radial-gradient(circle at 83% 18%, rgba(18, 169, 178, .26), transparent 25%), linear-gradient(135deg, #102a2f, #0a1d21); box-shadow: 1rem 1rem 0 rgba(25, 112, 120, .1); }
.soc-home-hero::after { content: ""; position: absolute; z-index: -1; inset: 0; opacity: .14; background-image: linear-gradient(rgba(255,255,255,.28) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.28) 1px, transparent 1px); background-size: 2rem 2rem; mask-image: linear-gradient(90deg, transparent, #000 58%); }
.soc-home-kicker { display: flex; align-items: center; gap: .6rem; margin: 0 0 1.35rem; color: var(--soc-cyan); font: 800 .56rem/1.4 monospace; letter-spacing: .16em; text-transform: uppercase; }
.soc-home-kicker span { width: 1.4rem; height: 1px; background: var(--soc-orange); }
.md-typeset .soc-home-hero h1 { max-width: 36rem; margin: 0; color: #fff; font-size: clamp(2.4rem, 7vw, 4.8rem); line-height: .98; letter-spacing: -.06em; }
.soc-home-lead { max-width: 42rem; margin: 1.35rem 0 0; color: rgba(244, 239, 230, .68); font-size: .82rem; line-height: 1.85; }
.soc-home-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .8rem; max-width: 38rem; margin-top: 2rem; }
.soc-home-stats span { color: rgba(244, 239, 230, .5); font: 700 .5rem/1.45 monospace; letter-spacing: .06em; text-transform: uppercase; }
.soc-home-stats strong { display: block; margin-bottom: .2rem; color: var(--soc-orange); font-size: 1rem; }

.soc-home-section { margin: 4.2rem 0; }
.soc-home-section-head { display: grid; grid-template-columns: 7.2rem minmax(0, 1fr); gap: 1.2rem; align-items: start; margin-bottom: 1.8rem; }
.soc-home-section-head p { margin: .15rem 0 0; color: var(--soc-teal); font: 800 .52rem/1.4 monospace; letter-spacing: .13em; text-transform: uppercase; }
.md-typeset .soc-home-section-head h2 { max-width: 34rem; margin: 0; padding: 0; border: 0; font-size: clamp(1.55rem, 4vw, 2.25rem); line-height: 1.18; }
.soc-home-flow { display: flex; align-items: center; gap: .45rem; padding: 1.4rem; border: 1px solid rgba(16, 42, 47, .13); overflow-x: auto; background: rgba(255,255,255,.35); }
.soc-home-flow a { flex: 1 0 4.3rem; display: grid; place-items: center; min-height: 3rem; border: 1px solid rgba(25,112,120,.25); color: var(--soc-ink); background: rgba(255,255,255,.64); font: 800 .58rem/1 monospace; letter-spacing: .05em; }
.soc-home-flow a:hover { color: #fff; background: var(--soc-ink); }
.soc-home-flow i { color: var(--soc-orange); font-style: normal; }
.soc-home-flow-note { margin: .85rem 0 0; color: var(--md-default-fg-color--light); font-size: .68rem; line-height: 1.7; }
.soc-route-grid, .soc-practice-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .8rem; }
.soc-route-card, .soc-practice-grid > a { display: block; min-height: 9.4rem; padding: 1.2rem; border: 1px solid rgba(16, 42, 47, .13); color: var(--md-default-fg-color); background: rgba(255,255,255,.4); transition: transform 160ms ease, background 160ms ease; }
.soc-route-card:hover, .soc-practice-grid > a:hover { color: var(--md-default-fg-color); background: rgba(255,255,255,.75); transform: translateY(-.18rem); }
.soc-route-card > span, .soc-practice-grid > a > span { color: var(--soc-teal); font: 800 .48rem/1 monospace; letter-spacing: .1em; text-transform: uppercase; }
.md-typeset .soc-route-card h3 { margin: 1rem 0 .6rem; font-size: .9rem; }
.soc-route-card p, .soc-practice-grid p { margin: 0; color: var(--md-default-fg-color--light); font-size: .63rem; line-height: 1.7; }
.soc-module-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid rgba(16, 42, 47, .14); }
.soc-module-grid a { display: grid; grid-template-columns: 2rem minmax(0, 1fr) auto; gap: .8rem; align-items: center; min-height: 4.1rem; padding: .75rem .7rem .75rem 0; border-bottom: 1px solid rgba(16, 42, 47, .12); color: var(--md-default-fg-color); }
.soc-module-grid a:nth-child(odd) { margin-right: 1.1rem; }
.soc-module-grid a:nth-child(even) { margin-left: 1.1rem; }
.soc-module-grid a:hover { color: var(--soc-teal); padding-left: .35rem; }
.soc-module-grid span { color: var(--soc-teal); font: 800 .54rem/1 monospace; }
.soc-module-grid strong { font-size: .72rem; }
.soc-module-grid em { color: var(--md-default-fg-color--light); font: 600 .48rem/1 monospace; font-style: normal; }
.soc-practice-grid > a strong { display: block; margin: .9rem 0 .5rem; font-size: .82rem; }

[data-md-color-scheme="slate"] .soc-home-flow,
[data-md-color-scheme="slate"] .soc-route-card,
[data-md-color-scheme="slate"] .soc-practice-grid > a { background: rgba(255,255,255,.025); }
[data-md-color-scheme="slate"] .soc-home-flow a { color: #edf3f1; background: rgba(255,255,255,.035); }
[data-md-color-scheme="slate"] .soc-home-flow a:hover { background: var(--soc-teal); }
[data-md-color-scheme="slate"] .soc-route-card:hover,
[data-md-color-scheme="slate"] .soc-practice-grid > a:hover { background: rgba(255,255,255,.06); }

@media screen and (max-width: 760px) {
  .soc-announce em { display: none; }
  .soc-home-hero { margin-top: .3rem; padding: 2.2rem 1.25rem; box-shadow: .55rem .55rem 0 rgba(25, 112, 120, .1); }
  .soc-home-stats { grid-template-columns: 1fr 1fr; }
  .soc-home-section-head { display: block; }
  .soc-home-section-head p { margin-bottom: .7rem; }
  .soc-route-grid, .soc-practice-grid { grid-template-columns: 1fr; }
  .soc-route-card, .soc-practice-grid > a { min-height: 0; }
  .soc-module-grid { grid-template-columns: 1fr; }
  .soc-module-grid a:nth-child(odd), .soc-module-grid a:nth-child(even) { margin: 0; }
  .soc-module-grid a { grid-template-columns: 1.7rem minmax(0, 1fr); }
  .soc-module-grid em { display: none; }
  .soc-side-tools { margin-top: .65rem; }
}

@media (prefers-reduced-motion: reduce) {
  .soc-reading-bar, .soc-side-progress span { transition: none; }
}