:root {
  --bg: #0d1117;
  --bg-soft: #121826;
  --bg-card: #161b27;
  --line: #232b3b;
  --ink: #dce3f1;
  --ink-dim: #8b96ab;
  --ink-faint: #5c6778;
  --accent: #7aa2f7;
  --accent-2: #7ddfff;
  --accent-3: #9ece6a;
  --accent-4: #e0af68;
  --accent-5: #f7768e;
  --accent-6: #bb9af7;
  --code-bg: #0a0e16;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f7f9fc;
  --bg-soft: #eef2f9;
  --bg-card: #ffffff;
  --line: #dde4ef;
  --ink: #1c2434;
  --ink-dim: #5a6679;
  --ink-faint: #8b96ab;
  --accent: #3b66d8;
  --accent-2: #0e8ea8;
  --accent-3: #4d8a35;
  --accent-4: #b07d1e;
  --accent-5: #d04868;
  --accent-6: #7d52d8;
  --code-bg: #0d1117;
  --shadow: 0 18px 44px rgba(23, 34, 56, 0.12);
  color-scheme: light;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  background: var(--bg);
  color: var(--ink);
}

code, pre, .term {
  font-family: "Cascadia Code", "JetBrains Mono", ui-monospace, "SF Mono",
    Menlo, Consolas, monospace;
}

/* ---------- shell ---------- */

.shell {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  min-height: 100vh;
}

.side {
  border-right: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 28px 20px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.side .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  margin-bottom: 26px;
}

.side .brand .mark {
  width: 36px;
  height: 36px;
  flex: none;
}

.mark .from { stop-color: var(--accent); }
.mark .to { stop-color: var(--accent-6); }
.mark .body { fill: color-mix(in srgb, var(--accent) 13%, transparent); }
.mark .bar { fill: color-mix(in srgb, var(--accent) 24%, transparent); }
.mark .edge { fill: none; stroke: url(#mark-edge); stroke-width: 4; }
.mark .red { fill: var(--accent-5); }
.mark .amber { fill: var(--accent-4); }
.mark .green { fill: var(--accent-3); }
.mark .prompt {
  fill: none;
  stroke: var(--ink);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.mark .cursor {
  stroke: var(--accent-3);
  stroke-width: 5;
  stroke-linecap: round;
  animation: mark-blink 1.2s steps(1) infinite;
}

@keyframes mark-blink {
  50% { opacity: 0; }
}

.side .brand b { font-size: 19px; letter-spacing: -0.3px; }
.side .brand small {
  display: block;
  color: var(--ink-dim);
  font-size: 11px;
  font-weight: 500;
  margin-top: -3px;
}

.side nav { display: flex; flex-direction: column; gap: 2px; }

.side nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}

.side nav a:hover { color: var(--ink); background: rgba(122, 162, 247, 0.08); }

.side nav a.active {
  color: var(--accent);
  background: rgba(122, 162, 247, 0.12);
}

.side nav a .k {
  width: 18px;
  text-align: center;
  opacity: 0.9;
}

.side .foot {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--ink-dim);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.side .foot a { color: var(--ink-dim); text-decoration: none; }
.side .foot a:hover { color: var(--accent); }

.main { padding: 0 48px 96px; max-width: 1010px; }

.page { display: none; animation: rise 0.32s ease; }
.page.show { display: block; }

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

/* ---------- topbar ---------- */

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.crumbs { font-size: 13.5px; color: var(--ink-dim); font-weight: 500; }
.crumbs b { color: var(--ink); font-weight: 650; }

.topbar .acts { display: flex; gap: 10px; }

.ghost-btn {
  border: 1px solid var(--line);
  background: var(--bg-card);
  color: var(--ink);
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}

.ghost-btn:hover { border-color: var(--accent); transform: translateY(-1px); }

/* ---------- typography ---------- */

h1, h2, h3, h4 { letter-spacing: -0.02em; line-height: 1.25; }

h2 {
  font-size: 27px;
  margin: 56px 0 14px;
  padding-top: 10px;
}

h2:first-child { margin-top: 0; }

h3 { font-size: 19px; margin: 34px 0 10px; }

p { margin: 0 0 16px; }
p.lead { font-size: 18px; color: var(--ink-dim); margin-bottom: 26px; }

a { color: var(--accent); }

ul { padding-left: 22px; }
li { margin-bottom: 7px; }

.hrule {
  border: none;
  border-top: 1px solid var(--line);
  margin: 44px 0;
}

/* ---------- code ---------- */

pre.block {
  background: var(--code-bg);
  color: #c9d4e8;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.65;
  margin: 18px 0 24px;
  box-shadow: var(--shadow);
}

pre.block .cm { color: #5c6a85; }
pre.block .kw { color: #7aa2f7; }
pre.block .st { color: #9ece6a; }
pre.block .fn { color: #7ddfff; }

code.inline {
  background: rgba(122, 162, 247, 0.1);
  color: var(--accent);
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.88em;
}

/* ---------- tables ---------- */

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  margin: 18px 0 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

th {
  text-align: left;
  background: var(--bg-soft);
  color: var(--ink-dim);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
}

td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(122, 162, 247, 0.04); }

.pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

.pill.ok { background: rgba(158, 206, 106, 0.14); color: var(--accent-3); }
.pill.next { background: rgba(224, 175, 104, 0.14); color: var(--accent-4); }
.pill.test { background: rgba(125, 223, 255, 0.12); color: var(--accent-2); }

/* ---------- cards ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin: 22px 0 30px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  transition: transform 0.18s, border-color 0.18s;
}

.card:hover { transform: translateY(-3px); border-color: var(--accent); }

.card .ic {
  font-size: 22px;
  font-family: ui-monospace, monospace;
  color: var(--accent);
  margin-bottom: 10px;
}

.card h4 { margin: 0 0 8px; font-size: 15.5px; }
.card p { margin: 0; font-size: 13.5px; color: var(--ink-dim); }

/* ---------- hero ---------- */

.hero {
  padding: 26px 0 10px;
}

.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  background: var(--bg-card);
  padding: 5px 14px;
  border-radius: 99px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-dim);
  margin-bottom: 22px;
}

.hero .eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-3);
  animation: pulse 2.2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(158, 206, 106, 0.5); }
  55% { box-shadow: 0 0 0 7px rgba(158, 206, 106, 0); }
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  letter-spacing: -0.035em;
  margin: 0 0 14px;
  line-height: 1.08;
}

.hero h1 .grad {
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 55%, var(--accent-6) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.tag {
  font-size: 19px;
  color: var(--ink-dim);
  max-width: 720px;
  margin: 0 0 30px;
}

.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; }

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn.primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-6));
  color: #fff;
  box-shadow: 0 10px 26px rgba(122, 162, 247, 0.35);
}

.btn.primary:hover { transform: translateY(-2px); }

.btn.soft {
  background: var(--bg-card);
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn.soft:hover { border-color: var(--accent); transform: translateY(-2px); }

/* ---------- terminal window ---------- */

.term-window {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  margin: 8px 0 40px;
  background: var(--code-bg);
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
}

.term-bar .light {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.term-bar .light.r { background: #f7768e; }
.term-bar .light.y { background: #e0af68; }
.term-bar .light.g { background: #9ece6a; }

.term-bar .title {
  margin-left: 10px;
  font-size: 12.5px;
  color: var(--ink-dim);
  font-family: ui-monospace, monospace;
}

.term-body {
  padding: 20px 22px 24px;
  font-size: 13.5px;
  line-height: 1.55;
  overflow-x: auto;
  white-space: pre;
  color: #c9d4e8;
}

.term-body .dim { color: #5c6a85; }
.term-body .b { color: #dce3f1; font-weight: 700; }
.term-body .blue { color: #7aa2f7; }
.term-body .cyan { color: #7ddfff; }
.term-body .green { color: #9ece6a; }
.term-body .gold { color: #e0af68; }
.term-body .pink { color: #f7768e; }
.term-body .purple { color: #bb9af7; }
.term-body .rev { background: #7aa2f7; color: #0d1117; font-weight: 700; }

.cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--accent);
  vertical-align: -2px;
  animation: blink 1.1s step-end infinite;
}

@keyframes blink { 50% { opacity: 0; } }

/* ---------- stats band ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin: 34px 0 10px;
}

.stat {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
}

.stat .n {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--accent);
  font-family: ui-monospace, monospace;
}

.stat .l {
  font-size: 12.5px;
  color: var(--ink-dim);
  font-weight: 600;
  margin-top: 2px;
}

/* ---------- standards ---------- */

.std {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 20px 0 26px;
}

.std .card .ic { font-size: 13px; }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .side {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
  .main { padding: 0 20px 72px; }
  .hero h1 { font-size: 38px; }
  .term-body { font-size: 11.5px; }
}

/* ---------- widget cards ---------- */

.wcard {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-card);
  padding: 18px 22px 20px;
  margin: 14px 0 24px;
}

.wcard:hover { border-color: var(--accent); }

.wcard h4 { margin: 0 0 4px; font-size: 16px; }

.wcard .wdesc { color: var(--ink-dim); font-size: 13.5px; margin: 0 0 14px; }

.wlive {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  transition: border-color 0.2s ease;
}

.wlive:focus-within { border-color: var(--accent); }

.wlive canvas,
.term-live canvas {
  display: block;
  width: 100%;
  outline: none;
  cursor: default;
}

.wmsg {
  font-family: "Cascadia Code", "JetBrains Mono", ui-monospace, monospace;
  font-size: 12.5px;
  color: var(--ink-faint);
  margin: 8px 2px 14px;
  min-height: 1.6em;
}

.wcard pre.wcode {
  margin: 0;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
}

.offline::after {
  content: "Build the JavaScript first: moon build --target js --release";
  display: block;
  color: var(--ink-faint);
  font-size: 12.5px;
}

/* ---------- live terminal on the home page ---------- */

.term-live { padding: 14px 16px 8px; }

.term-live canvas { height: 486px; }

.term-hint {
  padding: 4px 20px 18px;
  font-size: 13.5px;
  color: var(--ink-dim);
}

.term-hint b { color: var(--ink); }

@media (max-width: 900px) {
  .term-live canvas { height: 396px; }
}