@font-face {
  font-family: "Google Sans Flex Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 100 1000;
  src: url("/fonts/google-sans-flex-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Google Sans Flex Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 100 1000;
  src: url("/fonts/google-sans-flex-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root,
[data-theme="dark"] {
  --paper: #0d0d0d;
  --ink: #ececec;
  --muted: #a0a0a0;
  --line: #282828;
  --line-strong: #3a3a3a;
  --panel: #151515;
  --panel-2: #1e1e1e;
  --panel-3: #252525;
  --signal: #8bd5a4;
  --signal-bg: rgba(139, 213, 164, 0.11);
  --signal-border: rgba(139, 213, 164, 0.32);
  --cyan: #8dc9da;
  --cyan-bg: rgba(141, 201, 218, 0.11);
  --cyan-border: rgba(141, 201, 218, 0.34);
  --violet: #b8a5ff;
  --violet-bg: rgba(184, 165, 255, 0.11);
  --violet-border: rgba(184, 165, 255, 0.34);
  --amber: #e7bd73;
  --amber-bg: rgba(231, 189, 115, 0.12);
  --red: #ff9388;
  --link: #8ab4f8;
  --shadow: 0 20px 56px rgba(0, 0, 0, 0.42);
  --sans: "Google Sans Flex Variable", -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", ui-monospace, Menlo, Monaco, Consolas, monospace;
  color-scheme: dark;
}

[data-theme="light"] {
  --paper: #f7f7f2;
  --ink: #151515;
  --muted: #5d615a;
  --line: #d8dbd0;
  --line-strong: #b9bdb0;
  --panel: #ffffff;
  --panel-2: #ecefe7;
  --panel-3: #e1e5da;
  --signal: #166b35;
  --signal-bg: rgba(22, 107, 53, 0.09);
  --signal-border: rgba(22, 107, 53, 0.28);
  --cyan: #007686;
  --cyan-bg: rgba(0, 118, 134, 0.08);
  --cyan-border: rgba(0, 118, 134, 0.28);
  --violet: #5a43e6;
  --violet-bg: rgba(90, 67, 230, 0.08);
  --violet-border: rgba(90, 67, 230, 0.28);
  --amber: #966000;
  --amber-bg: rgba(150, 96, 0, 0.09);
  --red: #b83320;
  --link: #2457a7;
  --shadow: 0 20px 56px rgba(18, 18, 18, 0.08);
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

code,
pre,
.mono {
  font-family: var(--mono);
}

.container {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 28px;
}

/* Header / Navbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 650;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

[data-theme="dark"] .brand-mark-light {
  display: none;
}
[data-theme="light"] .brand-mark-dark {
  display: none;
}

.brand-badge {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--cyan-bg);
  color: var(--cyan);
  border: 1px solid var(--cyan-border);
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  transition: color 150ms ease;
}

.nav-links a:hover {
  color: var(--ink);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ctrl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding: 0 11px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 150ms ease, background 150ms ease;
}

.ctrl-btn:hover {
  border-color: var(--line-strong);
  background: var(--panel-2);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
  transition: all 150ms ease;
}

.btn:hover {
  border-color: var(--line-strong);
  background: var(--panel-2);
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.btn-primary:hover {
  opacity: 0.9;
  background: var(--ink);
  color: var(--paper);
}

.btn-sm {
  height: 34px;
  padding: 0 12px;
  font-size: 13px;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 76px 0 64px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 80% 50% at 50% -15%, var(--cyan-bg), transparent),
    radial-gradient(ellipse 55% 40% at 85% 20%, var(--signal-bg), transparent);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 44px;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--signal);
  background: var(--signal-bg);
  border: 1px solid var(--signal-border);
  padding: 5px 11px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 8px var(--signal);
}

.hero h1 {
  font-size: clamp(34px, 4.4vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
  font-weight: 700;
}

.hero h1 em {
  font-style: normal;
  color: var(--cyan);
}

.hero-lead {
  font-size: 17px;
  line-height: 1.68;
  color: var(--muted);
  margin: 0 0 28px;
  max-width: 640px;
}

.hero-install-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 10px 14px;
  max-width: 560px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.hero-install-bar code {
  font-size: 13.5px;
  color: var(--signal);
  overflow-x: auto;
  white-space: nowrap;
}

.copy-pill {
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 5px;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 140ms ease;
}

.copy-pill:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Right Hero Terminal Card */
.hero-terminal {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.terminal-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line-strong);
}

.terminal-body {
  padding: 18px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.68;
  overflow-x: auto;
}

.t-comment { color: var(--muted); }
.t-cmd { color: var(--ink); font-weight: 600; }
.t-flag { color: var(--cyan); }
.t-str { color: var(--signal); }
.t-out { color: var(--violet); }
.t-math {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 6px;
  background: var(--panel-2);
  border-left: 3px solid var(--cyan);
  font-size: 12px;
  color: var(--ink);
}

/* Stats Strip */
.stats-strip {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  divide-x: 1px solid var(--line);
}

.stat-cell {
  padding: 24px 20px;
  border-right: 1px solid var(--line);
}

.stat-cell:last-child {
  border-right: none;
}

.stat-value {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.stat-value span {
  color: var(--signal);
  font-size: 15px;
  font-weight: 600;
  margin-left: 6px;
}

.stat-label {
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}

/* Section Layout */
.section {
  padding: 76px 0;
  border-bottom: 1px solid var(--line);
}

.section-header {
  max-width: 780px;
  margin-bottom: 40px;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--cyan);
  margin: 0 0 10px;
}

.section-title {
  font-size: clamp(26px, 3.2vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}

.section-desc {
  font-size: 16px;
  color: var(--muted);
  margin: 0;
}

/* 01: Full-Stack RSI Interactive Architecture */
.rsi-formula-banner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.formula-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
}

.formula-step {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.formula-eq {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
  margin: 6px 0 4px;
}

.formula-caption {
  font-size: 12.5px;
  color: var(--muted);
}

.rsi-interactive-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  align-items: stretch;
}

.rsi-nodes-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.rsi-nodes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.rsi-node-btn {
  text-align: left;
  padding: 13px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--ink);
  cursor: pointer;
  transition: all 150ms ease;
  display: flex;
  align-items: flex-start;
  gap: 11px;
}

.rsi-node-btn:hover {
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.rsi-node-btn.active {
  border-color: var(--cyan);
  background: var(--cyan-bg);
}

.node-symbol {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 5px;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  color: var(--cyan);
  flex-shrink: 0;
}

.rsi-node-btn.active .node-symbol {
  background: var(--cyan);
  color: var(--paper);
  border-color: var(--cyan);
}

.node-meta h4 {
  margin: 0 0 2px;
  font-size: 14px;
  font-weight: 600;
}

.node-meta p {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}

.rsi-detail-panel {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.detail-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.detail-symbol-pill {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--signal);
  background: var(--signal-bg);
  border: 1px solid var(--signal-border);
  padding: 4px 10px;
  border-radius: 6px;
}

.detail-layer-tag {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.rsi-detail-panel h3 {
  font-size: 22px;
  margin: 0 0 10px;
}

.rsi-detail-panel > div > p {
  color: var(--muted);
  font-size: 14.5px;
  margin: 0 0 18px;
}

.detail-kv-list {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.detail-kv {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
}

.detail-kv strong {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 3px;
}

.detail-kv span {
  font-size: 13.5px;
  color: var(--ink);
}

.detail-code {
  margin: 0;
  padding: 12px 14px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--signal);
  overflow-x: auto;
}

/* 02: EnvHub Ecosystem & ANS Catalog */
.arch-boundary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}

.boundary-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.boundary-card .repo-tag {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--violet);
  background: var(--violet-bg);
  border: 1px solid var(--violet-border);
  padding: 2px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 10px;
}

.boundary-card h3 {
  font-size: 16px;
  margin: 0 0 6px;
}

.boundary-card p {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-tab {
  padding: 7px 14px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 140ms ease;
}

.filter-tab:hover {
  color: var(--ink);
  border-color: var(--line-strong);
}

.filter-tab.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.asset-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.asset-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 150ms ease, transform 150ms ease;
}

.asset-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.asset-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.asset-kind {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--cyan);
}

.asset-version {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.asset-uri {
  font-family: var(--mono);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 8px;
  word-break: break-all;
}

.asset-desc {
  font-size: 13.5px;
  color: var(--muted);
  margin: 0 0 16px;
}

.asset-cmd-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 7px 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--signal);
}

.asset-cmd-box span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 03: Benchmarks & Leaderboards */
.bench-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.bench-tab-btn {
  padding: 12px 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  transition: all 150ms ease;
}

.bench-tab-btn:hover {
  border-color: var(--line-strong);
}

.bench-tab-btn.active {
  border-color: var(--signal);
  background: var(--signal-bg);
}

.bench-tab-btn strong {
  display: block;
  font-size: 15px;
}

.bench-tab-btn span {
  font-size: 12px;
  color: var(--muted);
}

.bench-panel {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 26px;
}

.bench-meta-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.bench-meta-top h3 {
  font-size: 22px;
  margin: 0 0 6px;
}

.bench-meta-top p {
  font-size: 14px;
  color: var(--muted);
  max-width: 720px;
  margin: 0;
}

.bench-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.bench-fact {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 12px;
}

.bench-fact small {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}

.bench-fact strong {
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--ink);
}

.leaderboard-table-wrap {
  overflow-x: auto;
}

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.leaderboard-table th,
.leaderboard-table td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.leaderboard-table th {
  font-family: var(--mono);
  font-size: 11.5px;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--panel-2);
}

.leaderboard-table tr.highlight-row {
  background: var(--signal-bg);
}

.leaderboard-table tr.highlight-row td {
  font-weight: 600;
}

.score-bar-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}

.score-bar-track {
  width: 96px;
  height: 7px;
  background: var(--panel-3);
  border-radius: 999px;
  overflow: hidden;
}

.score-bar-fill {
  height: 100%;
  background: var(--cyan);
  border-radius: 999px;
}

.highlight-row .score-bar-fill {
  background: var(--signal);
}

/* 04: Quickstart Code Playground */
.quickstart-shell {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  overflow: hidden;
}

.quickstart-tabs {
  display: flex;
  flex-wrap: wrap;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
}

.q-tab {
  padding: 13px 18px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 140ms ease;
}

.q-tab:hover {
  color: var(--ink);
}

.q-tab.active {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  background: var(--panel);
}

.quickstart-content {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
}

.quickstart-explain {
  padding: 26px;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.quickstart-explain h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.quickstart-explain p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14.5px;
}

.quickstart-steps {
  margin: 0 0 20px;
  padding-left: 18px;
  color: var(--ink);
  font-size: 13.5px;
}

.quickstart-steps li {
  margin-bottom: 8px;
}

.quickstart-code-pane {
  padding: 22px;
  background: var(--paper);
  position: relative;
}

.code-pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.quickstart-pre {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink);
  overflow-x: auto;
}

/* Ecosystem Portal Matrix */
.portal-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.portal-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 150ms ease, transform 150ms ease;
}

.portal-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.portal-domain {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--cyan);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.portal-card h3 {
  font-size: 17px;
  margin: 0 0 8px;
}

.portal-card p {
  font-size: 13.5px;
  color: var(--muted);
  margin: 0;
}

/* Footer */
.site-footer {
  padding: 48px 0;
  background: var(--panel);
  font-size: 13.5px;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links a:hover {
  color: var(--ink);
}

@media (max-width: 980px) {
  .hero-grid,
  .rsi-interactive-grid,
  .quickstart-content {
    grid-template-columns: 1fr;
  }
  .quickstart-explain {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
  .stats-grid,
  .rsi-formula-banner,
  .arch-boundary-grid,
  .portal-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
  .asset-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav-links {
    display: none;
  }
}

@media (max-width: 600px) {
  .stats-grid,
  .rsi-formula-banner,
  .arch-boundary-grid,
  .asset-grid,
  .portal-matrix,
  .rsi-nodes-grid {
    grid-template-columns: 1fr;
  }
  .stat-cell {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
}