/* ─────────────────────────────────────────
   TOKENS
───────────────────────────────────────── */
:root {
  --bg:          #0f0f10;
  --bg-alt:      #141416;
  --bg-card:     #1a1a1e;
  --bg-hover:    #202026;
  --border:      rgba(255,255,255,0.07);
  --border-hov:  rgba(255,255,255,0.14);

  --text-primary:   #f0f0f2;
  --text-secondary: #8a8a95;
  --text-muted:     #4a4a55;

  --accent:      #7c6ff7;
  --accent-dim:  rgba(124,111,247,0.15);
  --accent-glow: rgba(124,111,247,0.35);
  --green:       #4ade80;
  --yellow:      #facc15;
  --red:         #f87171;
  --header-bg:   rgba(15,15,16,0.85);
  --chrome-subtle-bg: rgba(255,255,255,.025);
  --inline-code-bg: rgba(255,255,255,.07);
  --syntax-comment: #4a4a55;
  --syntax-cmd:     #7dd3fc;
  --syntax-param:   #a78bfa;
  --syntax-str:     #86efac;
  --theme-toggle-track: rgba(255,255,255,.08);
  --theme-toggle-thumb: #f0f0f2;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;

  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-scale-desktop: 1.067;
  --font-scale-mobile: 1.033;
  --font-scale: var(--font-scale-desktop);
  --icon-scale: 1.067;
  --badge-scale: 1.067;

  --header-h: 60px;
  --max-w:    1100px;
}

:root[data-theme='light'] {
  --bg:          #f6f8fc;
  --bg-alt:      #edf2f9;
  --bg-card:     #ffffff;
  --bg-hover:    #e7edf7;
  --border:      rgba(17,24,39,0.12);
  --border-hov:  rgba(17,24,39,0.22);

  --text-primary:   #111827;
  --text-secondary: #374151;
  --text-muted:     #6b7280;

  --accent:      #4f46e5;
  --accent-dim:  rgba(79,70,229,0.12);
  --accent-glow: rgba(79,70,229,0.28);
  --green:       #15803d;
  --yellow:      #b45309;
  --red:         #b91c1c;
  --header-bg:   rgba(246,248,252,0.86);
  --chrome-subtle-bg: rgba(17,24,39,.04);
  --inline-code-bg: rgba(17,24,39,.08);
  --syntax-comment: #6b7280;
  --syntax-cmd:     #0b5cad;
  --syntax-param:   #6d28d9;
  --syntax-str:     #166534;
  --theme-toggle-track: rgba(17,24,39,.08);
  --theme-toggle-thumb: #111827;
}

/* ─────────────────────────────────────────
   RESET & BASE
───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.65;
  font-size: calc(15px * var(--font-scale));
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

code {
  overflow-wrap: anywhere;
  word-break: break-word;
}

strong { color: var(--text-primary); font-weight: 600; }

/* ─────────────────────────────────────────
   LAYOUT
───────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ─────────────────────────────────────────
   HEADER
───────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: calc(16px * var(--font-scale));
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon { font-size: calc(20px * var(--icon-scale)); color: var(--accent); }
.logo .accent { color: var(--accent); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.main-nav a {
  color: var(--text-secondary);
  font-size: calc(13.5px * var(--font-scale));
  font-weight: 400;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: color .18s, background .18s;
  text-decoration: none;
}
.main-nav a:hover { color: var(--text-primary); background: var(--bg-card); }

.theme-toggle {
  width: 46px;
  height: 26px;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: var(--theme-toggle-track);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  padding: 2px;
  margin-right: 6px;
  flex-shrink: 0;
  transition: border-color .18s, background .18s;
}
.theme-toggle:hover { border-color: var(--border-hov); }
.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.theme-toggle-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg);
  background: var(--theme-toggle-thumb);
  font-size: calc(12px * var(--icon-scale));
  transform: translateX(0);
  transition: transform .2s, background .18s, color .18s;
}
.theme-toggle[aria-pressed='true'] .theme-toggle-thumb {
  transform: translateX(20px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform .2s, opacity .2s;
}

/* ─────────────────────────────────────────
   HERO
───────────────────────────────────────── */
.hero {
  padding-top: calc(var(--header-h) + 80px);
  padding-bottom: 80px;
  text-align: center;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: calc(11.5px * var(--badge-scale));
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(124,111,247,.25);
  border-radius: 99px;
  padding: 4px 12px;
  margin-bottom: 28px;
}

.hero-title {
  font-size: clamp(
    calc(2rem * var(--font-scale)),
    calc(5vw * var(--font-scale)),
    calc(3.25rem * var(--font-scale))
  );
  font-weight: 600;
  letter-spacing: -.025em;
  line-height: 1.18;
  max-width: 700px;
  margin-bottom: 20px;
}

.hero-desc {
  font-size: calc(16px * var(--font-scale));
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero-code-wrap {
  width: 100%;
  max-width: 620px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  overflow: hidden;
  text-align: left;
  box-shadow: 0 24px 64px rgba(0,0,0,.45);
}

.hero-code {
  padding: 24px 28px;
  font-size: calc(13.5px * var(--font-scale));
  line-height: 1.9;
  overflow-x: auto;
}

.hero-warning {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 28px;
  padding: 14px 18px;
  background: rgba(250,204,21,.06);
  border: 1px solid rgba(250,204,21,.18);
  border-radius: var(--radius-md);
  font-size: calc(13.5px * var(--font-scale));
  color: var(--text-secondary);
  max-width: 620px;
  text-align: left;
}
.warn-icon { color: var(--yellow); font-size: calc(15px * var(--icon-scale)); flex-shrink: 0; margin-top: 1px; }
.hero-warning a { color: var(--yellow); }

/* ─────────────────────────────────────────
   CODE BLOCK
───────────────────────────────────────── */
.code-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--chrome-subtle-bg);
}

.dot {
  width: 11px; height: 11px;
  border-radius: 50%;
}
.dot.red    { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green  { background: #28c840; }

.code-label {
  font-size: calc(11.5px * var(--badge-scale));
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-left: 4px;
  flex: 1;
}

.copy-btn {
  margin-left: auto;
  font-size: calc(11px * var(--badge-scale));
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: color .15s, border-color .15s;
}
.copy-btn:hover { color: var(--text-primary); border-color: var(--border-hov); }

.code-block-wrap {
  max-width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  overflow: hidden;
}

.code-block-wrap pre {
  max-width: 100%;
  padding: 16px 20px;
  font-size: calc(13px * var(--font-scale));
  line-height: 1.8;
  overflow-x: auto;
}

/* syntax tokens */
.cm-comment { color: var(--syntax-comment); }
.cm-cmd     { color: var(--syntax-cmd); }
.cm-param   { color: var(--syntax-param); }
.cm-str     { color: var(--syntax-str); }

/* ─────────────────────────────────────────
   FEATURES
───────────────────────────────────────── */
.features {
  padding: 32px 0 72px;
  border-top: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.feature-card {
  padding: 24px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color .2s, background .2s;
}
.feature-card:hover {
  border-color: var(--border-hov);
  background: var(--bg-hover);
}

.feature-icon { font-size: calc(22px * var(--icon-scale)); margin-bottom: 12px; }

.feature-card h3 {
  font-size: calc(14px * var(--font-scale));
  font-weight: 600;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: calc(13px * var(--font-scale));
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ─────────────────────────────────────────
   SECTIONS
───────────────────────────────────────── */
.section {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}
.section-alt {
  background: var(--bg-alt);
}

.section-label {
  font-size: calc(11.5px * var(--badge-scale));
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(
    calc(1.5rem * var(--font-scale)),
    calc(3vw * var(--font-scale)),
    calc(2rem * var(--font-scale))
  );
  font-weight: 600;
  letter-spacing: -.02em;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: calc(15px * var(--font-scale));
  max-width: 560px;
  margin-bottom: 48px;
}

/* ─────────────────────────────────────────
   STEPS (Install)
───────────────────────────────────────── */
.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}
.step:first-child { padding-top: 0; }

.step-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: calc(12px * var(--font-scale));
  font-weight: 500;
  color: var(--accent);
  margin-top: 2px;
}

.step-body h3 {
  font-size: calc(16px * var(--font-scale));
  font-weight: 600;
  margin-bottom: 6px;
}
.step-body p {
  color: var(--text-secondary);
  font-size: calc(14px * var(--font-scale));
  margin-bottom: 16px;
}

/* OS Tabs */
.os-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}
.os-tab {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: calc(12.5px * var(--font-scale));
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-secondary);
  transition: all .15s;
}
.os-tab.active {
  background: var(--accent-dim);
  border-color: rgba(124,111,247,.4);
  color: var(--accent);
}
.os-tab:hover:not(.active) {
  border-color: var(--border-hov);
  color: var(--text-primary);
}

.os-content { display: none; }
.os-content.active { display: block; }

.os-note {
  font-size: calc(13px * var(--font-scale));
  color: var(--text-secondary);
  margin-bottom: 12px !important;
}

/* Two col */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 16px;
}

.label-sm {
  font-size: calc(12px * var(--font-scale));
  color: var(--text-muted);
  letter-spacing: .05em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 8px !important;
}

/* ─────────────────────────────────────────
   SUBSECTION
───────────────────────────────────────── */
.subsection { margin-top: 56px; }

.sub-title {
  font-size: calc(18px * var(--font-scale));
  font-weight: 600;
  margin-bottom: 8px;
}
.sub-desc {
  color: var(--text-secondary);
  font-size: calc(14px * var(--font-scale));
  margin-bottom: 24px;
}

/* ─────────────────────────────────────────
   EXAMPLES
───────────────────────────────────────── */
.example-tabs-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.example-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}
.ex-tab {
  flex: 1;
  padding: 13px 16px;
  font-size: calc(13.5px * var(--font-scale));
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color .15s, border-color .15s;
}
.ex-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.ex-tab:hover:not(.active) { color: var(--text-primary); }

.ex-panel { display: none; }
.ex-panel.active { display: block; }

.ex-panel .code-block-wrap {
  border-radius: 0;
  border: none;
}
.ex-panel .code-block-wrap pre {
  padding: 28px 28px;
  font-size: calc(13.5px * var(--font-scale));
}

/* ─────────────────────────────────────────
   PARAM GRID
───────────────────────────────────────── */
.param-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.param-card {
  min-width: 0;
  padding: 24px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  transition: border-color .2s;
}
.param-card:hover { border-color: var(--border-hov); }

.param-badge {
  display: inline-block;
  font-size: calc(10.5px * var(--badge-scale));
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 12px;
  background: var(--accent-dim);
  color: var(--accent);
}
.param-badge.flag {
  background: rgba(74,222,128,.1);
  color: var(--green);
}
.param-badge.vault {
  background: rgba(250,204,21,.1);
  color: var(--yellow);
}
.param-badge.copy {
  background: rgba(248,113,113,.1);
  color: var(--red);
}

.param-card h3 {
  font-size: calc(15px * var(--font-scale));
  font-weight: 600;
  margin-bottom: 8px;
}
.param-card > p {
  font-size: calc(13.5px * var(--font-scale));
  color: var(--text-secondary);
  margin-bottom: 14px;
}

/* ─────────────────────────────────────────
   COMMAND REFERENCE
───────────────────────────────────────── */
.cmd-search-wrap {
  position: relative;
  margin-bottom: 28px;
}

.cmd-search {
  width: 100%;
  padding: 12px 16px 12px 44px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: calc(14px * var(--font-scale));
  font-family: var(--font-sans);
  outline: none;
  transition: border-color .15s;
}
.cmd-search:focus { border-color: rgba(124,111,247,.5); }
.cmd-search::placeholder { color: var(--text-muted); }

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: calc(18px * var(--icon-scale));
  color: var(--text-muted);
  pointer-events: none;
}

/* Command group */
.cmd-group {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 8px;
  background: var(--bg-card);
}

.cmd-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  font-size: calc(14px * var(--font-scale));
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background .15s;
}
.cmd-group-title:hover { background: var(--bg-hover); }
.cmd-group-title::marker,
.cmd-group-title::-webkit-details-marker { display: none; }

.cmd-group-title span:first-child { font-size: calc(16px * var(--icon-scale)); }

.cmd-group-title::after {
  content: '↓';
  margin-left: auto;
  font-size: calc(12px * var(--font-scale));
  color: var(--text-muted);
  transition: transform .2s;
}
details[open] .cmd-group-title::after {
  transform: rotate(180deg);
}

.cmd-list {
  border-top: 1px solid var(--border);
}

.cmd-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 16px;
  align-items: start;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  transition: background .12s;
}
.cmd-item:last-child { border-bottom: none; }
.cmd-item:hover { background: var(--bg-hover); }

.cmd-name code {
  font-size: calc(13px * var(--font-scale));
  color: var(--syntax-cmd);
  background: rgba(125,211,252,.08);
  padding: 2px 7px;
  border-radius: 4px;
  overflow-wrap: anywhere;
}

.cmd-desc {
  font-size: calc(13px * var(--font-scale));
  color: var(--text-secondary);
  line-height: 1.55;
}
.cmd-desc code {
  font-size: calc(12px * var(--font-scale));
  color: var(--text-primary);
  background: var(--inline-code-bg);
  padding: 1px 5px;
  border-radius: 3px;
}

.no-result {
  padding: 48px;
  text-align: center;
  color: var(--text-muted);
}

/* ─────────────────────────────────────────
   SHORTCUTS
───────────────────────────────────────── */
.shortcut-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.shortcut-group {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
}

.shortcut-group h3 {
  font-size: calc(13px * var(--font-scale));
  font-weight: 600;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.shortcut-group table {
  width: 100%;
  border-collapse: collapse;
}
.shortcut-group tr {
  border-bottom: 1px solid var(--border);
}
.shortcut-group tr:last-child { border-bottom: none; }

.shortcut-group td {
  padding: 9px 16px;
  font-size: calc(13px * var(--font-scale));
}
.shortcut-group td:first-child { color: var(--text-secondary); }
.shortcut-group td:last-child {
  text-align: right;
  white-space: normal;
}

kbd {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: calc(11px * var(--badge-scale));
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-hov);
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ─────────────────────────────────────────
   TROUBLESHOOTING
───────────────────────────────────────── */
.trouble-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.trouble-item {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
.trouble-item:first-child { padding-top: 0; }
.trouble-item > :last-child { min-width: 0; }

.trouble-icon {
  font-size: calc(22px * var(--icon-scale));
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-top: 2px;
}

.trouble-item h3 {
  font-size: calc(15px * var(--font-scale));
  font-weight: 600;
  margin-bottom: 8px;
}

.trouble-item p,
.trouble-item li {
  font-size: calc(14px * var(--font-scale));
  color: var(--text-secondary);
}

.trouble-item ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.trouble-item ul li::before {
  content: '→ ';
  color: var(--accent);
}

.trouble-item .code-block-wrap {
  max-width: 100%;
  margin: 12px 0;
}

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
.site-footer {
  padding: 28px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: calc(13.5px * var(--font-scale));
  color: var(--text-muted);
}
.footer-left .logo-icon { color: var(--accent); }

.footer-right {
  display: flex;
  gap: 20px;
  font-size: calc(13px * var(--font-scale));
}
.footer-right a { color: var(--text-secondary); }
.footer-right a:hover { color: var(--text-primary); }

/* ─────────────────────────────────────────
   TOAST
───────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--green);
  font-size: calc(13px * var(--font-scale));
  padding: 8px 20px;
  border-radius: 99px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
  z-index: 999;
  white-space: nowrap;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─────────────────────────────────────────
   SCROLLBAR
───────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.15); }

/* ─────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────── */
@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .param-grid {
    grid-template-columns: 1fr;
  }
  .shortcut-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  :root { --font-scale: var(--font-scale-mobile); }

  .main-nav { display: none; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    gap: 2px;
    z-index: 99;
  }
  .main-nav.open a {
    padding: 8px 12px;
    font-size: calc(14px * var(--font-scale));
  }
  .main-nav.open .theme-toggle { margin: 0 0 6px; }
  .nav-toggle { display: flex; }

  .hero { padding-top: calc(var(--header-h) + 48px); padding-bottom: 56px; }
  .hero-title { font-size: calc(2rem * var(--font-scale)); }

  .features-grid { grid-template-columns: 1fr; }

  .two-col { grid-template-columns: 1fr; }

  .step { flex-direction: column; gap: 16px; }

  .cmd-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .shortcut-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner { flex-direction: column; align-items: flex-start; }

  .toast {
    white-space: normal;
    max-width: calc(100vw - 32px);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
}