/* =============================================================
   Codex CLI 指南 — "Connection Status" design system
   Concept: the site embodies network/connection states.
   green = connected / solution, amber = reconnecting / warning,
   red = error. Terminal motif throughout.
   ============================================================= */

/* ---------- Tokens ---------- */
:root {
  --paper:      #FAF8F2;
  --paper-2:    #F1ECE0;
  --surface:    #FFFFFF;
  --surface-2:  #FBF9F4;
  --ink:        #15171C;
  --ink-soft:   #3C4047;
  --muted:      #6E6A60;
  --line:       #E7E1D4;
  --line-soft:  #EFEADF;

  --accent:       #0E9F6E;   /* connected / jade */
  --accent-strong:#0A7E56;
  --accent-wash:  #E5F5EE;
  --amber:        #D9870A;   /* reconnecting */
  --amber-wash:   #FBF0DA;
  --red:          #D63B43;   /* error */
  --red-wash:     #FBE6E7;
  --blue:         #2C6BE3;   /* info */
  --blue-wash:    #E6EEFB;

  --term-bg:    #14171C;
  --term-bg-2:  #1B1F26;
  --term-green: #46E39B;
  --term-amber: #F2B340;
  --term-red:   #FF6B72;
  --term-dim:   #7B8694;
  --term-text:  #D8DEE6;

  --font-display: "Bricolage Grotesque", "Noto Sans SC", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(20,23,28,.05), 0 2px 6px rgba(20,23,28,.04);
  --shadow:    0 4px 14px rgba(20,23,28,.07), 0 12px 34px rgba(20,23,28,.06);
  --shadow-lg: 0 18px 50px rgba(20,23,28,.13);

  --maxw: 1180px;
  --readw: 760px;
  --ease: cubic-bezier(.21,.78,.32,1);
}

[data-theme="dark"] {
  --paper:      #0C0E12;
  --paper-2:    #101319;
  --surface:    #14171D;
  --surface-2:  #181C23;
  --ink:        #ECEAE2;
  --ink-soft:   #C2BFB6;
  --muted:      #8A857A;
  --line:       #262A32;
  --line-soft:  #20242B;

  --accent:       #2FD18C;
  --accent-strong:#54E0A4;
  --accent-wash:  #11231C;
  --amber:        #F0B24A;
  --amber-wash:   #271E0E;
  --red:          #FF6B72;
  --red-wash:     #2A1416;
  --blue:         #6CA0FF;
  --blue-wash:    #121A2A;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow:    0 8px 30px rgba(0,0,0,.5);
  --shadow-lg: 0 24px 60px rgba(0,0,0,.6);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 86px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.68;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
}

/* grain overlay */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none; z-index: 9999;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}
[data-theme="dark"] body::before { mix-blend-mode: screen; opacity: .05; }

img, svg { display: block; max-width: 100%; }
a { color: var(--accent-strong); text-decoration: none; }
a:hover { color: var(--accent); }
::selection { background: var(--accent); color: #fff; }

/* ---------- Layout ---------- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(18px, 4vw, 40px); }
.section { padding-block: clamp(56px, 8vw, 104px); }
.eyebrow {
  font-family: var(--font-mono);
  font-size: .76rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-strong); font-weight: 600;
  display: inline-flex; align-items: center; gap: .5em;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--accent); display: inline-block; }

/* ---------- Typography ---------- */
h1,h2,h3,h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.08; letter-spacing: -.015em; color: var(--ink); }
h1 { font-size: clamp(2.1rem, 5.4vw, 3.9rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
p { color: var(--ink-soft); }
strong { color: var(--ink); font-weight: 650; }
.lede { font-size: clamp(1.05rem, 1.6vw, 1.28rem); color: var(--ink-soft); line-height: 1.6; }

/* ---------- Status dot motif ---------- */
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; flex: none; }
.dot.ok  { background: var(--accent); box-shadow: 0 0 0 0 var(--accent); }
.dot.warn{ background: var(--amber); }
.dot.err { background: var(--red); }
.dot.live { animation: pulse 1.8s var(--ease) infinite; }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--amber) 60%, transparent); }
  70%  { box-shadow: 0 0 0 10px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.nav { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-mono); font-weight: 700; color: var(--ink); font-size: 1rem; letter-spacing: -.02em; }
.brand .mark {
  width: 30px; height: 30px; border-radius: 8px; flex: none;
  background: var(--term-bg); color: var(--term-green);
  display: grid; place-items: center; font-size: .78rem; font-weight: 700;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.06);
}
.brand b { color: var(--accent-strong); }
.nav-links { display: flex; gap: 4px; margin-left: 12px; }
.nav-links a {
  color: var(--ink-soft); font-size: .92rem; font-weight: 500;
  padding: 7px 12px; border-radius: 8px; transition: background .18s, color .18s;
}
.nav-links a:hover { background: var(--paper-2); color: var(--ink); }
.nav-links a[aria-current="page"] { color: var(--accent-strong); background: var(--accent-wash); }
.nav-spacer { flex: 1; }
.nav-tools { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 9px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink-soft); cursor: pointer;
  display: grid; place-items: center; transition: all .18s; font-size: .9rem;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent-strong); }
.lang-toggle {
  display: inline-flex; border: 1px solid var(--line); border-radius: 9px; overflow: hidden;
  font-family: var(--font-mono); font-size: .78rem; background: var(--surface);
}
.lang-toggle a { padding: 8px 11px; color: var(--muted); font-weight: 600; transition: all .16s; }
.lang-toggle a[aria-current="true"] { background: var(--ink); color: var(--paper); }
.nav-toggle { display: none; }

@media (max-width: 900px) {
  .nav-links {
    position: fixed; inset: 64px 0 auto 0; flex-direction: column; gap: 2px;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 14px clamp(18px,4vw,40px) 22px; margin: 0;
    transform: translateY(-12px); opacity: 0; pointer-events: none; transition: all .22s var(--ease);
    box-shadow: var(--shadow);
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 11px 12px; font-size: 1rem; }
  .nav-toggle { display: grid; }
}

/* tighten header so tools never clip on small phones */
@media (max-width: 560px) {
  .nav { gap: 8px; }
  .brand { font-size: .82rem; gap: 7px; }
  .brand .mark { width: 26px; height: 26px; font-size: .72rem; }
  .nav-tools { gap: 6px; }
  .icon-btn { width: 34px; height: 34px; }
  .lang-toggle a { padding: 6px 9px; font-size: .72rem; }
}
@media (max-width: 380px) {
  .brand b, .brand { font-size: .76rem; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 22px; border-radius: 11px; font-weight: 600; font-size: .96rem;
  border: 1px solid transparent; cursor: pointer; transition: transform .15s var(--ease), box-shadow .2s, background .2s;
  font-family: var(--font-body);
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--paper); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--accent-strong); color: #fff; box-shadow: var(--shadow); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-strong); }
.btn .arrow { transition: transform .2s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Hero ---------- */
.hero { position: relative; padding-top: clamp(48px, 7vw, 88px); padding-bottom: clamp(40px, 6vw, 72px); overflow: hidden; }
.hero-grid {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image: linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(110% 80% at 70% 0%, #000 0%, transparent 72%);
  opacity: .7;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(30px, 5vw, 64px); align-items: center; }
.hero h1 { margin-top: 18px; }
.hero h1 .hl { color: var(--accent-strong); position: relative; white-space: nowrap; }
.hero .lede { margin-top: 20px; max-width: 33ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-meta { margin-top: 26px; display: flex; gap: 20px; flex-wrap: wrap; font-family: var(--font-mono); font-size: .8rem; color: var(--muted); }
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }

@media (max-width: 880px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero .lede { max-width: 46ch; }
}

/* ---------- Terminal card ---------- */
.terminal {
  background: var(--term-bg); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); overflow: hidden; color: var(--term-text);
  font-family: var(--font-mono); font-size: .86rem; line-height: 1.7;
  border: 1px solid rgba(255,255,255,.07);
}
.terminal .bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; background: var(--term-bg-2); border-bottom: 1px solid rgba(255,255,255,.06); }
.terminal .bar i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.terminal .bar i:nth-child(1){ background:#ff5f57; } .terminal .bar i:nth-child(2){ background:#febc2e; } .terminal .bar i:nth-child(3){ background:#28c840; }
.terminal .bar .title { margin-left: 10px; color: var(--term-dim); font-size: .76rem; }
.terminal .body { padding: 18px 20px; min-height: 248px; }
.terminal .ln { display: block; white-space: pre-wrap; }
.terminal .pr { color: var(--term-green); }
.terminal .cmd { color: #fff; }
.terminal .cm { color: var(--term-dim); }
.terminal .ok { color: var(--term-green); }
.terminal .warn { color: var(--term-amber); }
.terminal .err { color: var(--term-red); }
.terminal .cursor { display: inline-block; width: 9px; height: 1.05em; background: var(--term-green); vertical-align: -2px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.reveal-line { opacity: 0; transform: translateY(4px); animation: lineIn .4s var(--ease) forwards; }
@keyframes lineIn { to { opacity: 1; transform: none; } }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 18px; }
.grid.cols-2 { grid-template-columns: repeat(2,1fr); }
.grid.cols-3 { grid-template-columns: repeat(3,1fr); }
.grid.cols-4 { grid-template-columns: repeat(4,1fr); }
@media (max-width: 920px){ .grid.cols-3,.grid.cols-4 { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px){ .grid.cols-2,.grid.cols-3,.grid.cols-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; transition: transform .22s var(--ease), box-shadow .22s, border-color .22s;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.card .num { font-family: var(--font-mono); font-size: .78rem; color: var(--muted); }
.card h3 { margin: 12px 0 8px; font-size: 1.18rem; }
.card p { font-size: .95rem; color: var(--muted); }
.card .tag-row { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px; }

/* topic card with status accent bar */
.topic { display: flex; flex-direction: column; }
.topic::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.topic:hover::before { transform: scaleX(1); }
.topic.is-warn::before { background: var(--amber); }
.topic.is-err::before { background: var(--red); }
.topic .ico { font-family: var(--font-mono); font-size: 1.4rem; }
.topic .more { margin-top: auto; padding-top: 14px; font-family: var(--font-mono); font-size: .8rem; color: var(--accent-strong); display: inline-flex; align-items: center; gap: 6px; }

/* ---------- Pills / badges ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: .72rem; font-weight: 600;
  padding: 4px 9px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface-2); color: var(--ink-soft); letter-spacing: .01em;
}
.pill.ok  { color: var(--accent-strong); background: var(--accent-wash); border-color: color-mix(in srgb,var(--accent) 30%, transparent); }
.pill.warn{ color: var(--amber); background: var(--amber-wash); border-color: color-mix(in srgb,var(--amber) 30%, transparent); }
.pill.err { color: var(--red); background: var(--red-wash); border-color: color-mix(in srgb,var(--red) 30%, transparent); }

/* ---------- Callouts (connection-state styled) ---------- */
.callout {
  border: 1px solid var(--line); border-left-width: 3px; border-radius: var(--radius-sm);
  padding: 16px 18px; margin: 22px 0; background: var(--surface-2); font-size: .96rem;
  display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start;
}
.callout .ci { font-family: var(--font-mono); font-weight: 700; line-height: 1.5; }
.callout p { color: var(--ink-soft); margin: 0; }
.callout p + p { margin-top: 8px; }
.callout strong { color: var(--ink); }
.callout.ok   { border-left-color: var(--accent); background: var(--accent-wash); } .callout.ok .ci { color: var(--accent-strong); }
.callout.warn { border-left-color: var(--amber); background: var(--amber-wash); } .callout.warn .ci { color: var(--amber); }
.callout.err  { border-left-color: var(--red); background: var(--red-wash); } .callout.err .ci { color: var(--red); }
.callout.info { border-left-color: var(--blue); background: var(--blue-wash); } .callout.info .ci { color: var(--blue); }

/* ---------- Code blocks ---------- */
.code {
  position: relative; background: var(--term-bg); border-radius: var(--radius-sm);
  margin: 18px 0; overflow: hidden; border: 1px solid rgba(255,255,255,.06);
}
.code .code-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 14px; background: var(--term-bg-2); border-bottom: 1px solid rgba(255,255,255,.06);
  font-family: var(--font-mono); font-size: .72rem; color: var(--term-dim);
}
.code .copy {
  background: transparent; border: 1px solid rgba(255,255,255,.14); color: var(--term-dim);
  border-radius: 6px; padding: 3px 9px; font-size: .68rem; cursor: pointer; font-family: var(--font-mono);
  transition: all .16s;
}
.code .copy:hover { color: var(--term-green); border-color: var(--term-green); }
.code .copy.done { color: var(--term-green); border-color: var(--term-green); }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; }
.code code { font-family: var(--font-mono); font-size: .84rem; line-height: 1.72; color: var(--term-text); }
.code .c-cm { color: var(--term-dim); }
.code .c-pr { color: var(--term-green); }
.code .c-st { color: #FFD79A; }
.code .c-kw { color: #8AB4FF; }
.code .c-nu { color: #F2B340; }

/* inline code */
:not(pre) > code {
  font-family: var(--font-mono); font-size: .86em; padding: .12em .42em;
  background: var(--paper-2); border: 1px solid var(--line-soft); border-radius: 5px; color: var(--accent-strong);
}
[data-theme="dark"] :not(pre) > code { background: var(--surface-2); }

/* ---------- Article layout ---------- */
.article-head { padding-top: clamp(28px, 4vw, 48px); padding-bottom: 8px; }
.breadcrumb { font-family: var(--font-mono); font-size: .78rem; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; }
.breadcrumb a { color: var(--muted); } .breadcrumb a:hover { color: var(--accent-strong); }
.breadcrumb .sep { opacity: .5; }
.article-head h1 { margin: 16px 0 14px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; font-family: var(--font-mono); font-size: .8rem; color: var(--muted); margin-top: 4px; }

.layout { display: grid; grid-template-columns: 1fr; gap: 48px; padding-bottom: 80px; }
.layout.with-toc { grid-template-columns: minmax(0,1fr) 232px; }
@media (max-width: 980px){ .layout.with-toc { grid-template-columns: 1fr; } .toc { display: none; } }

.prose { max-width: var(--readw); }
.prose > * + * { margin-top: 1.15rem; }
.prose h2 { margin-top: 2.4rem; padding-top: 1.2rem; border-top: 1px solid var(--line-soft); scroll-margin-top: 88px; }
.prose h2:first-of-type { border-top: none; padding-top: 0; }
.prose h3 { margin-top: 1.8rem; scroll-margin-top: 88px; }
.prose ul, .prose ol { padding-left: 1.3em; color: var(--ink-soft); }
.prose li { margin: .4em 0; }
.prose li::marker { color: var(--accent); }
.prose a { border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); }
.prose a:hover { border-bottom-color: var(--accent); }
.prose blockquote { border-left: 3px solid var(--line); padding-left: 16px; color: var(--muted); font-style: italic; }

/* steps */
.steps { counter-reset: step; list-style: none; padding: 0; }
.steps > li { position: relative; padding-left: 46px; margin: 18px 0; }
.steps > li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: -2px; width: 30px; height: 30px; border-radius: 8px;
  background: var(--ink); color: var(--paper); font-family: var(--font-mono); font-weight: 700; font-size: .85rem;
  display: grid; place-items: center;
}

/* data table */
.table-wrap { overflow-x: auto; margin: 20px 0; border: 1px solid var(--line); border-radius: var(--radius-sm); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 460px; }
thead th { background: var(--paper-2); text-align: left; font-family: var(--font-mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-soft); padding: 11px 14px; }
tbody td { padding: 11px 14px; border-top: 1px solid var(--line-soft); color: var(--ink-soft); vertical-align: top; }
tbody tr:hover { background: var(--surface-2); }

/* ---------- TOC ---------- */
.toc { position: sticky; top: 88px; align-self: start; font-size: .86rem; }
.toc .toc-title { font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 12px; }
.toc ul { list-style: none; padding: 0; border-left: 1px solid var(--line); }
.toc li a { display: block; padding: 6px 14px; color: var(--muted); border-left: 2px solid transparent; margin-left: -1px; transition: all .16s; }
.toc li a:hover { color: var(--ink); }
.toc li a.active { color: var(--accent-strong); border-left-color: var(--accent); font-weight: 600; }

/* ---------- FAQ ---------- */
.faq { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.faq details { border-top: 1px solid var(--line-soft); }
.faq details:first-child { border-top: none; }
.faq summary {
  list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 600; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 16px; font-size: 1.02rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--font-mono); font-size: 1.3rem; color: var(--accent); transition: transform .25s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .ans { padding: 0 22px 20px; color: var(--ink-soft); font-size: .96rem; }
.faq .ans > * + * { margin-top: .8rem; }

/* ---------- Next/prev nav ---------- */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 36px; }
.pager a { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 18px; background: var(--surface); transition: all .2s; }
.pager a:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.pager .dir { font-family: var(--font-mono); font-size: .72rem; color: var(--muted); }
.pager .ttl { color: var(--ink); font-weight: 600; margin-top: 4px; display: block; }
.pager a.next { text-align: right; }
@media (max-width: 560px){ .pager { grid-template-columns: 1fr; } }

/* ---------- CTA band ---------- */
.band {
  background: var(--term-bg); color: var(--term-text); border-radius: var(--radius-lg);
  padding: clamp(32px, 5vw, 56px); position: relative; overflow: hidden;
  border: 1px solid rgba(255,255,255,.07);
}
.band::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 38px 38px; mask-image: radial-gradient(80% 120% at 100% 0, #000, transparent 70%);
}
.band h2 { color: #fff; position: relative; }
.band p { color: var(--term-dim); position: relative; max-width: 52ch; }
.band .hero-cta { position: relative; }
.band .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.25); }
.band .btn-ghost:hover { border-color: var(--term-green); color: var(--term-green); }
.band .btn-primary { background: var(--term-green); color: #07130d; }
.band .btn-primary:hover { background: #fff; color: #07130d; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--surface-2); padding-block: 52px 36px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
@media (max-width: 760px){ .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h4 { font-family: var(--font-mono); font-size: .76rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 14px; }
.footer-grid a { display: block; color: var(--ink-soft); font-size: .92rem; padding: 4px 0; }
.footer-grid a:hover { color: var(--accent-strong); }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line-soft); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: var(--muted); font-size: .82rem; font-family: var(--font-mono); }
.footer-note { color: var(--muted); font-size: .86rem; max-width: 34ch; margin-top: 10px; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } .reveal-line { animation: none; opacity: 1; transform: none; } }

/* stagger helpers */
.d1{transition-delay:.06s}.d2{transition-delay:.12s}.d3{transition-delay:.18s}.d4{transition-delay:.24s}.d5{transition-delay:.3s}.d6{transition-delay:.36s}

/* misc */
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); }
.center { text-align: center; }
.maxw-prose { max-width: 60ch; }
hr.rule { border: none; border-top: 1px solid var(--line); margin: 40px 0; }
.kbd { font-family: var(--font-mono); font-size: .8em; padding: 2px 7px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 6px; background: var(--surface); color: var(--ink); }