:root {
  --gpu-ink: #071f12;
  --gpu-deep: #030e08;
  --gpu-green: #107c41;
  --gpu-neon: #76b900;
  --gpu-emerald: #00e676;
  --md-primary-fg-color: #0b2918;
  --md-primary-fg-color--light: #124427;
  --md-primary-fg-color--dark: #04140b;
  --md-accent-fg-color: #76b900;
  --md-default-bg-color: #f6f8f6;
  --md-code-bg-color: #eaf0eb;
}

[data-md-color-scheme="slate"] {
  --md-default-bg-color: #0a130e;
  --md-default-fg-color: rgba(238, 246, 240, .9);
  --md-default-fg-color--light: rgba(238, 246, 240, .62);
  --md-code-bg-color: #0f1c15;
  --md-typeset-a-color: #00e676;
}

body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
.md-header { background: linear-gradient(105deg, var(--gpu-deep), var(--gpu-ink)); box-shadow: none; }
.md-banner { color: #dce8e4; background: #030e08; }
.gpu-announce { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .5rem 1rem; width: min(100%,76rem); margin: 0 auto; font-size: .58rem; }
.gpu-announce nav, .gpu-announce a { display: inline-flex; align-items: center; gap: .42rem; }
.gpu-announce a { color: #fff; }
.gpu-announce a:hover { text-decoration: underline; }
.gpu-announce a:focus-visible { outline: 2px solid #fff; outline-offset: 4px; }
.gpu-announce-divider, .gpu-announce em { color: #b9c9c4; font-style: normal; }
.gpu-announce em { font-family: monospace; letter-spacing: .08em; text-transform: uppercase; }
.gpu-announce-mark { display: inline-grid; place-items: center; width: 1.45rem; height: 1.45rem; border: 1px solid #718a80; color: #dce8e4; font: 800 .48rem/1 monospace; }
@media (max-width: 480px) { .gpu-announce em { display: none; } }
.md-tabs { background: var(--gpu-ink); }
.md-typeset h1, .md-typeset h2, .md-typeset h3 { letter-spacing: -.025em; }
.md-typeset h1 { color: var(--gpu-ink); font-weight: 800; }
[data-md-color-scheme="slate"] .md-typeset h1 { color: #eaf8ee; }
.md-typeset h2 { padding-bottom: .45rem; border-bottom: 1px solid rgba(16, 124, 65, .15); font-weight: 750; }

.gpu-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(118, 185, 0, .26), transparent 25%), linear-gradient(135deg, #0b2918, #030e08); box-shadow: 1rem 1rem 0 rgba(16, 124, 65, .12); }
.gpu-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%); }
.gpu-home-kicker { display: flex; align-items: center; gap: .6rem; margin: 0 0 1.35rem; color: var(--gpu-neon); font: 800 .56rem/1.4 monospace; letter-spacing: .16em; text-transform: uppercase; }
.gpu-home-kicker span { width: 1.4rem; height: 1px; background: var(--gpu-emerald); }
.md-typeset .gpu-home-hero h1 { max-width: 36rem; margin: 0; color: #fff; font-size: clamp(2.4rem, 7vw, 4.8rem); line-height: .98; letter-spacing: -.06em; }
.gpu-home-lead { max-width: 42rem; margin: 1.35rem 0 0; color: rgba(244, 239, 230, .75); font-size: .82rem; line-height: 1.85; }
.gpu-home-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .8rem; max-width: 38rem; margin-top: 2rem; }
.gpu-home-stats span { color: rgba(244, 239, 230, .5); font: 700 .5rem/1.45 monospace; letter-spacing: .06em; text-transform: uppercase; }
.gpu-home-stats strong { display: block; margin-bottom: .2rem; color: var(--gpu-neon); font-size: 1rem; }

.gpu-home-section { margin: 4.2rem 0; }
.gpu-home-section-head { display: grid; grid-template-columns: 7.2rem minmax(0, 1fr); gap: 1.2rem; align-items: start; margin-bottom: 1.8rem; }
.gpu-home-section-head p { margin: .15rem 0 0; color: var(--gpu-green); font: 800 .52rem/1.4 monospace; letter-spacing: .13em; text-transform: uppercase; }
.md-typeset .gpu-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; }
.gpu-home-flow { display: flex; align-items: center; gap: .45rem; padding: 1.4rem; border: 1px solid rgba(16, 124, 65, .15); overflow-x: auto; background: rgba(255,255,255,.4); }
.gpu-home-flow a { flex: 1 0 4.3rem; display: grid; place-items: center; min-height: 3rem; border: 1px solid rgba(16, 124, 65, .25); color: var(--gpu-ink); background: rgba(255,255,255,.75); font: 800 .58rem/1 monospace; letter-spacing: .05em; }
.gpu-home-flow a:hover { color: #fff; background: var(--gpu-ink); }
.gpu-home-flow i { color: var(--gpu-neon); font-style: normal; }
.gpu-home-flow-note { margin: .85rem 0 0; color: var(--md-default-fg-color--light); font-size: .68rem; line-height: 1.7; }
.gpu-route-grid, .gpu-practice-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .8rem; }
.gpu-route-card, .gpu-practice-grid > a { display: block; min-height: 9.4rem; padding: 1.2rem; border: 1px solid rgba(16, 124, 65, .15); color: var(--md-default-fg-color); background: rgba(255,255,255,.45); transition: transform 160ms ease, background 160ms ease; }
.gpu-route-card:hover, .gpu-practice-grid > a:hover { color: var(--md-default-fg-color); background: rgba(255,255,255,.8); transform: translateY(-.18rem); }
.gpu-route-card > span, .gpu-practice-grid > a > span { color: var(--gpu-green); font: 800 .48rem/1 monospace; letter-spacing: .1em; text-transform: uppercase; }
.md-typeset .gpu-route-card h3 { margin: 1rem 0 .6rem; font-size: .9rem; }
.gpu-route-card p, .gpu-practice-grid p { margin: 0; color: var(--md-default-fg-color--light); font-size: .63rem; line-height: 1.7; }
.gpu-module-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid rgba(16, 124, 65, .15); }
.gpu-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, 124, 65, .12); color: var(--md-default-fg-color); }
.gpu-module-grid a:nth-child(odd) { margin-right: 1.1rem; }
.gpu-module-grid a:nth-child(even) { margin-left: 1.1rem; }
.gpu-module-grid a:hover { color: var(--gpu-green); padding-left: .35rem; }
.gpu-module-grid span { color: var(--gpu-green); font: 800 .54rem/1 monospace; }
.gpu-module-grid strong { font-size: .72rem; }
.gpu-module-grid em { color: var(--md-default-fg-color--light); font: 600 .48rem/1 monospace; font-style: normal; }
.gpu-practice-grid > a strong { display: block; margin: .9rem 0 .5rem; font-size: .82rem; }

[data-md-color-scheme="slate"] .gpu-home-flow,
[data-md-color-scheme="slate"] .gpu-route-card,
[data-md-color-scheme="slate"] .gpu-practice-grid > a { background: rgba(255,255,255,.025); }
[data-md-color-scheme="slate"] .gpu-home-flow a { color: #edf8f0; background: rgba(255,255,255,.04); }
[data-md-color-scheme="slate"] .gpu-home-flow a:hover { background: var(--gpu-green); }
[data-md-color-scheme="slate"] .gpu-route-card:hover,
[data-md-color-scheme="slate"] .gpu-practice-grid > a:hover { background: rgba(255,255,255,.06); }

/* Reading progress */
.gpu-reading-track { position: fixed; z-index: 20; top: 0; left: 0; width: 100%; height: 3px; background: transparent; pointer-events: none; }
.gpu-reading-bar { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--gpu-green), var(--gpu-neon), var(--gpu-emerald)); box-shadow: 0 0 .6rem rgba(118, 185, 0, .35); transition: width 80ms linear; }
.gpu-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); }
.gpu-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; }
.gpu-side-tools__head output { color: var(--md-accent-fg-color); font-size: .56rem; }
.gpu-side-progress { height: .22rem; overflow: hidden; border-radius: 999px; background: var(--md-default-fg-color--lightest); }
.gpu-side-progress span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--gpu-green), var(--gpu-neon)); transition: width 80ms linear; }
@media (prefers-reduced-motion: reduce) { .gpu-reading-bar, .gpu-side-progress span { transition: none; } }