/*
Theme Name: CSDocs
Theme URI: https://getcsdocs.com/
Author: Cloud Steward, LLC
Description: Custom theme for the CSDocs marketing site — ported from the Claude Design handoff. Serves the landing page and the waitlist form.
Version: 1.0.0
License: All rights reserved
Text Domain: csdocs
*/

  /* ------- theme tokens ------- */
  :root {
    --bg:         #f5f7f6;
    --bg-elev:    #ffffff;
    --bg-soft:    #eaf2f1;
    --ink:        #0f2a2e;
    --ink-dim:    #4a6369;
    --ink-faint:  #8a9ea2;
    --rule:       #d8e2e2;
    --rule-soft:  #e8eeed;
    --accent:     #0f8a8d;
    --accent-2:   #d19f3f;
    --accent-ink: #ffffff;
    --danger:     #d97060;
    --ok:         #4fa86e;

    --font-display: "Google Sans", -apple-system, system-ui, sans-serif;
    --font-ui:      "Google Sans Text", "Google Sans", sans-serif;
    --font-mono:    "Fira Code", ui-monospace, Menlo, monospace;

    --step: 1;
    --pad: calc(22px * var(--step));
    --gap: calc(14px * var(--step));
  }
  :root[data-theme="dark"] {
    --bg:         #0b1618;
    --bg-elev:    #122224;
    --bg-soft:    #19302f;
    --ink:        #e6f0ee;
    --ink-dim:    #9db3b2;
    --ink-faint:  #637878;
    --rule:       #254041;
    --rule-soft:  #1b3132;
    --accent:     #4fd1c5;
    --accent-2:   #e4b557;
    --accent-ink: #0b1618;
  }
  :root[data-accent="teal"]    { --accent:#0f8a8d; }
  :root[data-accent="cyan"]    { --accent:#0f8a8d; }
  :root[data-accent="forest"]  { --accent:#2f7a5b; }
  :root[data-accent="indigo"]  { --accent:#4b62c9; }
  :root[data-accent="coral"]   { --accent:#e07a5f; }
  :root[data-accent="amber"]   { --accent:#c79a2a; }
  :root[data-accent="magenta"] { --accent:#b8478c; }
  :root[data-accent="lime"]    { --accent:#5aa04a; }
  :root[data-accent="orange"]  { --accent:#e07a5f; }
  :root[data-theme="dark"][data-accent="teal"]   { --accent:#4fd1c5; --accent-ink:#0b1618; }
  :root[data-theme="dark"][data-accent="cyan"]   { --accent:#4fd1c5; --accent-ink:#0b1618; }
  :root[data-theme="dark"][data-accent="forest"] { --accent:#6dd4a8; --accent-ink:#0b1618; }
  :root[data-theme="dark"][data-accent="indigo"] { --accent:#8fa2ff; --accent-ink:#0b1618; }
  :root[data-theme="dark"][data-accent="coral"]  { --accent:#f2a58d; --accent-ink:#0b1618; }
  :root[data-theme="dark"][data-accent="amber"]  { --accent:#e8c064; --accent-ink:#0b1618; }

  :root[data-pairing="plex"]  { --font-display:"Google Sans",sans-serif; --font-ui:"Google Sans Text",sans-serif; --font-mono:"Fira Code",monospace; }
  :root[data-pairing="google"]{ --font-display:"Google Sans",sans-serif; --font-ui:"Google Sans Text",sans-serif; --font-mono:"Fira Code",monospace; }
  :root[data-pairing="serif"] { --font-display:"IBM Plex Serif",serif; --font-ui:"Google Sans Text",sans-serif; --font-mono:"Fira Code",monospace; }
  :root[data-pairing="fraunces"] { --font-display:"Fraunces",serif; --font-ui:"Google Sans Text",sans-serif; --font-mono:"Fira Code",monospace; }
  :root[data-pairing="mono"]  { --font-display:"Fira Code",monospace; --font-ui:"Fira Code",monospace; --font-mono:"Fira Code",monospace; }

  :root[data-density="compact"] { --step: .82; }
  :root[data-density="cozy"]    { --step: 1; }
  :root[data-density="roomy"]   { --step: 1.18; }

  html { scroll-behavior: smooth; }
  * { box-sizing: border-box; }
  html, body { margin:0; padding:0; background:var(--bg); color:var(--ink); }
  body {
    font-family: var(--font-ui);
    font-size: calc(15px * var(--step));
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration: none; }
  button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

  /* ------- layout ------- */
  .page { max-width: 1320px; margin: 0 auto; padding: 0 var(--pad); }

  /* ------- top nav ------- */
  .nav {
    position: sticky; top: 0; z-index: 60;
    background: color-mix(in oklab, var(--bg) 88%, transparent);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--rule-soft);
  }
  .nav-inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 28px;
    padding: 16px 0;
  }
  .brand { display:flex; align-items:center; gap:10px; font-family: var(--font-display); font-weight: 500; font-size: 20px; letter-spacing: -.01em; }
  .brand-mark {
    width: 30px; height: 30px;
    display: inline-flex; align-items:center; justify-content:center;
  }
  .brand-mark img, .brand-mark svg { width:100%; height:100%; display:block; }
  .brand em { font-style: italic; color: var(--ink-dim); font-weight: 400; }
  .nav-links { display:flex; gap:4px; justify-self:center; font-size: 13.5px; color: var(--ink-dim); }
  .nav-links a { padding: 7px 12px; border-radius: 6px; transition: .15s; }
  .nav-links a:hover { color: var(--ink); background: var(--bg-soft); }

  /* hamburger — hidden on desktop */
  .nav-burger {
    display: none;
    width: 40px; height: 40px; align-items: center; justify-content: center;
    background: transparent; border: 1px solid var(--rule); border-radius: 8px;
    color: var(--ink); cursor: pointer; transition: .15s;
  }
  .nav-burger:hover { border-color: var(--ink-faint); }
  .nav-burger svg { display: block; }

  .mobile-menu {
    position: fixed; inset: 56px 0 auto 0;
    background: var(--bg);
    border-bottom: 1px solid var(--rule);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform .25s ease, opacity .2s ease;
    z-index: 49;
    max-height: calc(100vh - 56px);
    overflow-y: auto;
  }
  .mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .mobile-menu-inner {
    padding: 20px 24px 28px;
    display: flex; flex-direction: column;
  }
  .mobile-menu a {
    display: block;
    padding: 14px 4px;
    font-size: 15px;
    color: var(--ink-dim);
    border-bottom: 1px solid var(--rule-soft);
    transition: color .12s;
  }
  .mobile-menu a:hover { color: var(--ink); }
  .mobile-menu a:last-of-type { border-bottom: 0; }
  .mobile-menu .btn { margin-top: 16px; justify-content: center; }
  .mobile-menu-scrim {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.35);
    opacity: 0; pointer-events: none;
    transition: opacity .2s ease;
    z-index: 48;
  }
  .mobile-menu-scrim.open { opacity: 1; pointer-events: auto; }

  /* ------- AI chat section ------- */
  .chat-wrap {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 48px;
    align-items: center;
  }
  .chat-ui {
    border: 1px solid var(--rule);
    border-radius: 14px;
    background: var(--bg-elev);
    overflow: hidden;
    box-shadow: 0 24px 48px -24px rgba(0,0,0,.35);
  }
  .chat-head {
    display:flex; align-items:center; justify-content:space-between;
    padding: 12px 16px; border-bottom: 1px solid var(--rule-soft);
    font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-faint);
  }
  .chat-head .lock {
    display:inline-flex; align-items:center; gap:8px; color: var(--ink-dim);
  }
  .chat-head .lock .pip { width:6px; height:6px; border-radius:50%; background: var(--ok, #8fb36a); box-shadow: 0 0 10px currentColor; }
  .chat-body { padding: 20px 22px; display: grid; gap: 14px; }
  .msg {
    display: grid; grid-template-columns: 28px 1fr; gap: 12px;
    align-items: start;
  }
  .msg .av {
    width: 24px; height: 24px; border-radius: 6px;
    border: 1px solid var(--rule);
    font-family: var(--font-mono); font-size: 10px; color: var(--ink-dim);
    display:inline-flex; align-items:center; justify-content:center;
    margin-top: 2px;
  }
  .msg.ai .av { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
  .msg .bubble { font-size: 14px; line-height: 1.55; color: var(--ink); }
  .msg.user .bubble { color: var(--ink-dim); font-style: italic; }
  .msg .src {
    margin-top: 10px; display:flex; flex-wrap:wrap; gap: 6px;
    font-family: var(--font-mono); font-size: 11px;
  }
  .msg .src a {
    padding: 3px 8px; border: 1px solid var(--rule); border-radius: 999px;
    color: var(--ink-dim);
  }
  .msg .src a:hover { color: var(--ink); border-color: var(--ink-faint); }
  .chat-input {
    display:flex; align-items:center; gap: 12px;
    padding: 12px 16px; border-top: 1px solid var(--rule-soft);
    font-family: var(--font-mono); font-size: 13px; color: var(--ink-faint);
  }
  .chat-input .bar {
    flex: 1; padding: 9px 12px; border: 1px solid var(--rule); border-radius: 8px;
    background: var(--bg); color: var(--ink-faint);
  }
  .chat-input .bar .caret {
    display:inline-block; width: 1px; height: 13px; background: var(--accent);
    margin-left: 2px; vertical-align: -2px;
    animation: blink 1.1s steps(2) infinite;
  }
  @keyframes blink { 50% { opacity: 0; } }
  .chat-input .send {
    width: 30px; height: 30px; border-radius: 7px;
    background: var(--accent); color: var(--accent-ink);
    display:inline-flex; align-items:center; justify-content:center;
  }
  .chat-trust {
    margin-top: 22px;
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 1px; background: var(--rule-soft);
    border: 1px solid var(--rule-soft); border-radius: 10px; overflow: hidden;
  }
  .chat-trust .cell {
    background: var(--bg); padding: 16px 18px;
    font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-faint);
  }
  .chat-trust .cell b { display:block; color: var(--ink); font-family: var(--font-ui); font-size: 14px; font-weight: 500; margin-bottom: 4px; }
  .nav-cta { display:flex; gap:8px; align-items:center; }
  .kbd {
    font-family: var(--font-mono); font-size: 11px;
    border: 1px solid var(--rule); padding: 2px 6px; border-radius: 4px;
    color: var(--ink-dim); background: var(--bg-elev);
  }
.btn {
    display:inline-flex; align-items:center; gap:8px;
    padding: 9px 14px; border-radius: 8px;
    background: var(--accent); color: var(--accent-ink);
    font-weight: 600; font-size: 13.5px; letter-spacing: -.005em;
    transition: .15s;
  }
  .btn:hover { transform: translateY(-1px); }
  .btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--rule); }
  .btn-ghost:hover { border-color: var(--ink-faint); }

  /* ------- hero ------- */
  .hero {
    padding: 72px 0 32px;
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 56px;
    align-items: center;
  }
  .eyebrow {
    display:inline-flex; align-items:center; gap:10px;
    font-family: var(--font-mono); font-size: 12px;
    color: var(--ink-dim); text-transform: uppercase; letter-spacing: .08em;
    padding: 6px 10px; border: 1px solid var(--rule); border-radius: 999px;
    background: var(--bg-elev);
  }
  .eyebrow .dot { width:6px; height:6px; border-radius:50%; background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2); animation: pulse 2.4s infinite; }
  @keyframes pulse { 50% { opacity: .4; } }

  h1.hero-title {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(44px, 5.4vw, 76px);
    line-height: 1.02;
    letter-spacing: -.022em;
    margin: 22px 0 20px;
    text-wrap: balance;
  }
  h1.hero-title em {
    font-style: italic;
    color: var(--accent);
    font-weight: 400;
  }
  .hero-sub {
    font-size: clamp(16px, 1.4vw, 18px);
    color: var(--ink-dim);
    max-width: 52ch;
    line-height: 1.55;
    margin: 0 0 30px;
  }
  .hero-cta { display:flex; gap: 12px; align-items:center; margin-bottom: 34px; }
  .hero-meta {
    display:flex; flex-wrap: wrap; gap: 4px 28px;
    font-family: var(--font-mono); font-size: 12px;
    color: var(--ink-faint); letter-spacing: .02em;
  }
  .hero-meta b { color: var(--ink-dim); font-weight: 500; }

  /* ------- graph canvas ------- */
  .graph-shell {
    position: relative;
    aspect-ratio: 1 / 1;
    border: 1px solid var(--rule);
    border-radius: 14px;
    background:
      radial-gradient(ellipse at 30% 20%, color-mix(in oklab, var(--accent) 10%, transparent), transparent 55%),
      var(--bg-elev);
    overflow: hidden;
  }
  .graph-shell::before {
    content:"";
    position: absolute; inset: 0;
    background-image:
      linear-gradient(var(--rule-soft) 1px, transparent 1px),
      linear-gradient(90deg, var(--rule-soft) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: radial-gradient(circle at center, #000 30%, transparent 75%);
    opacity: .6;
  }
  .graph-shell svg { position: absolute; inset: 0; width: 100%; height: 100%; }
  .graph-head {
    position: absolute; top: 14px; left: 16px; right: 16px;
    display:flex; justify-content:space-between; align-items:center;
    font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-faint);
    pointer-events:none;
    z-index: 3;
  }
  .graph-head .chip {
    display:inline-flex; align-items:center; gap:6px;
    padding: 4px 8px; border: 1px solid var(--rule); border-radius: 999px;
    background: color-mix(in oklab, var(--bg) 70%, transparent);
    pointer-events: auto;
  }
  .graph-head .chip .sw { width:8px; height:8px; border-radius:2px; }
  .graph-foot {
    position: absolute; bottom: 14px; left: 16px; right: 16px;
    display:flex; justify-content:space-between; align-items:flex-end; gap: 12px;
    z-index: 3;
    pointer-events:none;
    opacity: .28;
    transition: opacity .5s ease;
  }
  .graph-shell:hover .graph-foot,
  .graph-shell:focus-within .graph-foot { opacity: 1; }
  .node-card {
    background: color-mix(in oklab, var(--bg) 92%, transparent);
    backdrop-filter: blur(8px);
    border: 1px solid var(--rule);
    border-radius: 10px;
    padding: 10px 12px;
    min-width: 230px;
    font-family: var(--font-mono); font-size: 12px; color: var(--ink-dim);
    pointer-events: auto;
  }
  .node-card .nc-title { color: var(--ink); font-size: 13px; margin-bottom: 4px; font-family: var(--font-ui); font-weight: 500; }
  .node-card .nc-row { display:flex; justify-content:space-between; gap: 12px; line-height: 1.7; }
  .node-card .nc-row span:first-child { color: var(--ink-faint); }

  /* ------- strip of stats (value strip, not metrics) ------- */
  .stat-strip {
    margin-top: 44px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
  }
  .stat-strip .stat {
    padding: 22px 20px;
    border-right: 1px solid var(--rule-soft);
  }
  .stat-strip .stat:last-child { border-right: 0; }
  .stat .n {
    font-family: var(--font-ui); font-weight: 500;
    color: var(--ink); font-size: 15px; line-height: 1.25;
    letter-spacing: -.005em;
    margin-bottom: 6px;
  }
  .stat .l {
    font-family: var(--font-mono); font-size: 11.5px;
    color: var(--ink-faint); letter-spacing: .04em; line-height: 1.5;
  }

  /* keep all four cells the same height regardless of wrap */
  .stat-strip .stat { display: flex; flex-direction: column; justify-content: flex-start; min-height: 86px; }

  /* intermediate breakpoint: 2x2 before the main mobile break */
  @media (max-width: 1100px) {
    .stat-strip { grid-template-columns: 1fr 1fr; }
    .stat-strip .stat { border-right: 1px solid var(--rule-soft); min-height: 78px; }
    .stat-strip .stat:nth-child(2n) { border-right: 0; }
    .stat-strip .stat:nth-child(-n+2) { border-bottom: 1px solid var(--rule-soft); }
  }

  /* ------- section heading ------- */
  .section { padding: 96px 0; border-top: 1px solid var(--rule-soft); scroll-margin-top: 88px; }
  .graph-shell { scroll-margin-top: 88px; }
  .section-head {
    display: grid; grid-template-columns: 1fr 2fr; gap: 40px;
    margin-bottom: 56px; align-items: end;
  }
  .section-label {
    font-family: var(--font-mono); font-size: 12px;
    color: var(--ink-faint); letter-spacing: .1em; text-transform: uppercase;
  }
  .section-label::before {
    content: "§ "; color: var(--accent-2);
  }
  .section h2 {
    font-family: var(--font-display); font-weight: 500;
    font-size: clamp(30px, 3.4vw, 48px); line-height: 1.05; letter-spacing: -.02em;
    margin: 0;
    text-wrap: balance;
  }
  .section h2 em { font-style: italic; color: var(--ink-dim); }

  /* ------- feature grid ------- */
  .features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--rule-soft);
    border: 1px solid var(--rule-soft);
    border-radius: 12px;
    overflow: hidden;
  }
  .feat {
    background: var(--bg);
    padding: 26px 24px 30px;
    grid-column: span 2;
    position: relative;
    min-height: 200px;
  }
  .feat.wide { grid-column: span 2; }
  .feat.tall { grid-column: span 2; grid-row: span 2; }
  .feat.full { grid-column: span 4; }
  .feat-num {
    font-family: var(--font-mono); font-size: 11px;
    color: var(--ink-faint); letter-spacing: .06em;
  }
  .feat-num .num { color: var(--accent-2); font-weight: 500; }
  .feat h3 {
    font-family: var(--font-display); font-weight: 500;
    font-size: 22px; line-height: 1.2; letter-spacing: -.01em;
    margin: 18px 0 8px;
  }
  .feat p { color: var(--ink-dim); margin: 0; font-size: 14px; line-height: 1.55; }
  .feat .feat-art {
    margin-top: 18px; height: 84px;
    border: 1px dashed var(--rule);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
  }

  /* mini viz inside feat cards */
  .viz-bars { display:flex; align-items:flex-end; gap:4px; padding: 10px; height: 100%; }
  .viz-bars i { flex:1; background: var(--accent); opacity:.65; border-radius: 2px 2px 0 0; display:block; }
  .viz-tree {
    padding: 10px 14px; height: 100%;
    display: flex; flex-direction: column; justify-content: center;
    font-family: var(--font-mono); font-size: 11px; color: var(--ink-dim);
    line-height: 1.55;
  }
  .viz-tree .kw { color: var(--accent); }
  .viz-pills { display:flex; flex-wrap:wrap; gap:6px; padding: 12px; }
  .viz-pills span {
    font-family: var(--font-mono); font-size: 11px;
    padding: 3px 8px; border-radius: 999px;
    border: 1px solid var(--rule); color: var(--ink-dim);
  }
  .viz-pills span.hot { color: var(--accent-ink); background: var(--accent); border-color: transparent; }

  .viz-clarity {
    padding: 10px 12px; display:flex; flex-direction: column; justify-content: center; gap: 6px;
  }
  .viz-clarity .clr-code {
    font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint);
    padding: 4px 8px; border: 1px solid var(--rule-soft); border-radius: 4px;
    background: var(--bg-soft); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  }
  .viz-clarity .clr-kw { color: var(--accent); }
  .viz-clarity .clr-fn { color: var(--ink-dim); }
  .viz-clarity .clr-arrow { color: var(--ink-faint); font-family: var(--font-mono); font-size: 10px; text-align: center; line-height: 1; }
  .viz-clarity .clr-prose {
    font-family: var(--font-display); font-size: 12.5px; line-height: 1.4;
    color: var(--ink); font-weight: 400; letter-spacing: -.005em;
  }
  .viz-clarity .clr-hl {
    font-family: var(--font-mono); font-size: 11px; color: var(--accent-2); font-weight: 500;
  }

  /* ------- code & docs example ------- */
  .split {
    display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
    background: var(--rule-soft);
    border: 1px solid var(--rule-soft);
    border-radius: 14px;
    overflow: hidden;
  }
  .split > div { background: var(--bg-elev); padding: 24px 26px; }
  .split-head {
    display:flex; justify-content:space-between; align-items:center;
    margin-bottom: 14px;
    font-family: var(--font-mono); font-size: 11.5px;
    color: var(--ink-faint); letter-spacing: .06em;
  }
  .split-head .filename { color: var(--ink); }
  pre.code {
    margin: 0; font-family: var(--font-mono); font-size: 12.5px;
    line-height: 1.65; color: var(--ink);
    white-space: pre; overflow-x: auto;
  }
  pre.code .c { color: var(--ink-faint); font-style: italic; }
  pre.code .k { color: var(--accent); }
  pre.code .s { color: color-mix(in oklab, var(--accent) 70%, var(--ink)); }
  pre.code .t { color: color-mix(in oklab, var(--accent) 45%, var(--ink)); }
  pre.code .p { color: var(--ink-dim); }

  .doc h4 {
    font-family: var(--font-display); font-weight: 500;
    font-size: 24px; letter-spacing: -.01em; margin: 0 0 2px;
  }
  .doc .doc-sub { font-family: var(--font-mono); font-size: 12px; color: var(--ink-faint); margin-bottom: 18px; }
  .doc p { color: var(--ink-dim); font-size: 14px; line-height: 1.6; margin: 0 0 14px; }
  .doc ul.deps { list-style: none; padding: 0; margin: 14px 0; font-family: var(--font-mono); font-size: 12px; }
  .doc ul.deps li {
    display:flex; justify-content:space-between; gap: 12px;
    padding: 7px 0; border-bottom: 1px dashed var(--rule);
  }
  .doc ul.deps li span:first-child { color: var(--ink); }
  .doc ul.deps li span:last-child { color: var(--ink-faint); }
  .doc .tags { display:flex; gap:6px; flex-wrap:wrap; margin-top: 10px; }
  .doc .tags span {
    font-family: var(--font-mono); font-size: 11px; padding: 3px 8px; border-radius: 4px;
    background: var(--bg-soft); color: var(--ink-dim);
  }

  /* ------- records table ------- */
  .rt {
    width: 100%; border-collapse: collapse;
    font-size: 13.5px;
  }
  .rt th, .rt td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--rule-soft); }
  .rt thead th {
    font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .08em;
    color: var(--ink-faint); font-weight: 500; border-bottom: 1px solid var(--rule);
  }
  .rt tbody tr { transition: background .12s; cursor: pointer; }
  .rt tbody tr:hover { background: var(--bg-soft); }
  .rt .rt-name { font-family: var(--font-mono); color: var(--ink); }
  .rt .rt-name .badge {
    display:inline-block; font-size: 10px; padding: 2px 6px; border-radius: 3px;
    background: var(--bg-soft); color: var(--ink-dim); margin-right: 8px; vertical-align: 1px;
  }
  .rt .rt-cov {
    display:inline-flex; align-items:center; gap:8px; font-family: var(--font-mono); font-size: 12px;
  }
  .rt .rt-cov .bar { width: 70px; height: 6px; background: var(--bg-soft); border-radius: 999px; overflow: hidden; }
  .rt .rt-cov .bar i { display:block; height: 100%; background: var(--accent); }
  .rt .rt-date { color: var(--ink-faint); font-family: var(--font-mono); font-size: 12px; }
  .rt-wrap {
    border: 1px solid var(--rule-soft); border-radius: 12px; overflow: hidden; background: var(--bg-elev);
  }
  .rt-toolbar {
    display:flex; justify-content:space-between; align-items:center;
    padding: 14px 18px; border-bottom: 1px solid var(--rule-soft);
    font-family: var(--font-mono); font-size: 12px; color: var(--ink-dim);
  }
  .rt-toolbar .tabs { display:flex; gap: 2px; }
  .rt-toolbar .tabs button {
    padding: 5px 10px; border-radius: 6px; font-size: 12px; color: var(--ink-dim);
  }
  .rt-toolbar .tabs button[aria-selected="true"] { background: var(--bg-soft); color: var(--ink); }

  /* ------- pipeline ------- */
  .pipe {
    display:grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
    margin-top: 12px;
  }
  .pipe .step {
    border: 1px solid var(--rule); border-radius: 10px;
    padding: 20px; background: var(--bg-elev);
    position: relative;
  }
  .pipe .step .sn {
    font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint);
    margin-bottom: 10px;
  }
  .pipe .step h5 {
    font-family: var(--font-display); font-weight: 500; margin: 0 0 6px;
    font-size: 18px; letter-spacing: -.01em;
  }
  .pipe .step p { color: var(--ink-dim); font-size: 13px; line-height: 1.5; margin: 0; }
  .pipe .step .pulse {
    position: absolute; top: 18px; right: 18px;
    width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  }

  /* ------- footer ------- */
  footer { padding: 60px 0 40px; border-top: 1px solid var(--rule-soft); color: var(--ink-faint); font-size: 13px; }
  footer .f-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 40px; }
  footer h6 { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-dim); margin: 0 0 14px; font-weight: 500; }
  footer ul { list-style: none; padding: 0; margin: 0; }
  footer ul li { padding: 5px 0; }
  footer ul li a:hover { color: var(--ink); }
  footer .f-soon { color: var(--ink-faint); opacity: .55; cursor: default; font-size: 13px; }
  footer .f-soon::after { content: " · soon"; font-family: var(--font-mono); font-size: 10px; letter-spacing: .05em; color: var(--ink-faint); opacity: .7; }
  footer .f-wm {
    font-family: var(--font-display); font-style: italic; font-size: 15px;
    color: var(--ink-dim); margin-top: 16px; max-width: 32ch;
  }
  footer .f-bar {
    margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--rule-soft);
    display:flex; justify-content:space-between; font-family: var(--font-mono); font-size: 11.5px;
  }

/* ------- tweaks panel ------- */
  .tweaks {
    position: fixed; bottom: 20px; right: 20px; z-index: 80;
    width: 280px;
    background: var(--bg-elev);
    border: 1px solid var(--rule);
    border-radius: 12px;
    box-shadow: 0 14px 36px -8px rgba(0,0,0,.45);
    font-family: var(--font-ui); font-size: 13px;
    transform: translateY(120%); opacity: 0; pointer-events: none;
    transition: transform .25s, opacity .25s;
  }
  .tweaks.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .tweaks header {
    display:flex; justify-content:space-between; align-items:center;
    padding: 12px 14px; border-bottom: 1px solid var(--rule-soft);
    font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint);
    text-transform: uppercase; letter-spacing: .08em;
  }
  .tweaks header strong { color: var(--ink); font-weight: 500; }
  .tweaks .body { padding: 12px 14px; display: grid; gap: 14px; }
  .tweaks .row { display: grid; gap: 6px; }
  .tweaks .row label { font-size: 11px; color: var(--ink-faint); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .06em; }
  .tweaks .seg {
    display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
    border: 1px solid var(--rule); border-radius: 7px; overflow: hidden;
  }
  .tweaks .seg button {
    padding: 7px 0; font-size: 12px; color: var(--ink-dim);
    border-right: 1px solid var(--rule);
  }
  .tweaks .seg button:last-child { border-right: 0; }
  .tweaks .seg button[aria-pressed="true"] { background: var(--bg-soft); color: var(--ink); }
  .tweaks .swatches { display:flex; gap: 8px; }
  .tweaks .swatches button {
    width: 24px; height: 24px; border-radius: 6px; border: 1px solid var(--rule);
    position: relative;
  }
  .tweaks .swatches button[aria-pressed="true"]::after {
    content:""; position: absolute; inset: -3px; border: 1px solid var(--ink); border-radius: 8px;
  }

  /* ------- features section band ------- */
  .features-band {
    position: relative;
    padding: 0;
    margin: 0 calc(50% - 50vw);
    background: var(--bg-elev);
    border-top: 1px solid var(--rule-soft);
    border-bottom: 1px solid var(--rule-soft);
  }
  :root[data-theme="light"] .features-band {
    background: #ffffff;
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,.8),
      0 1px 0 rgba(15, 42, 46, .02);
  }
  :root[data-theme="dark"] .features-band {
    background: #162729;
  }
  .features-band > .page { padding-top: 96px; padding-bottom: 96px; }
  .features-band .section-head { margin-bottom: 8px; }

  /* ------- feature rows ------- */
  .feat-rows { display: grid; gap: 0; border-top: 1px solid var(--rule-soft); margin-top: 24px; }
  .feat-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    padding: 72px 0;
    border-bottom: 1px solid var(--rule);
    align-items: center;
  }
  .feat-row.reverse .feat-copy { order: 2; }
  .feat-row.reverse .feat-media { order: 1; }
  .feat-copy .fr-num {
    font-family: var(--font-mono); font-size: 11px;
    color: var(--ink-faint); letter-spacing: .12em; text-transform: uppercase;
    margin-bottom: 22px;
  }
  .feat-copy .fr-num b { color: var(--accent-2); font-weight: 500; margin-right: 6px; }
  .feat-copy h3 {
    font-family: var(--font-display); font-weight: 500;
    font-size: clamp(26px, 2.6vw, 34px);
    line-height: 1.1; letter-spacing: -.015em;
    margin: 0 0 18px;
    text-wrap: balance;
  }
  .feat-copy h3 em { font-style: italic; color: var(--ink-dim); }
  .feat-copy p.lede { color: var(--ink-dim); font-size: 16px; line-height: 1.6; margin: 0 0 20px; max-width: 46ch; }
  .feat-copy ul.pts { list-style: none; padding: 0; margin: 0; }
  .feat-copy ul.pts li {
    display: grid; grid-template-columns: 14px 1fr; gap: 10px;
    padding: 9px 0; border-top: 1px solid var(--rule-soft);
    font-size: 14px; color: var(--ink-dim); line-height: 1.55;
  }
  .feat-copy ul.pts li::before {
    content: "→"; color: var(--accent); font-family: var(--font-mono); font-size: 13px;
    grid-column: 1; margin-top: 2px;
  }
  .feat-copy ul.pts li b { color: var(--ink); font-weight: 500; }

  .feat-media {
    background: var(--bg-elev);
    border: 1px solid var(--rule);
    border-radius: 14px;
    overflow: hidden;
    min-height: 320px;
    display: flex; flex-direction: column;
  }
  .fm-head {
    display:flex; justify-content:space-between; align-items:center;
    padding: 10px 14px; border-bottom: 1px solid var(--rule-soft);
    font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint); letter-spacing: .04em;
  }
  .fm-body { padding: 22px 24px; flex: 1; display: flex; flex-direction: column; justify-content: center; }

  .fm-graph { position: relative; padding: 22px; flex: 1; min-height: 280px;
    background:
      radial-gradient(ellipse at 30% 40%, color-mix(in oklab, var(--accent) 10%, transparent), transparent 60%),
      var(--bg-elev);
  }
  .fm-graph svg { width: 100%; height: 100%; display: block; }

  .fm-cov { padding: 22px 24px; display: grid; gap: 12px; flex: 1; align-content: center; }
  .fm-cov .row { display: grid; grid-template-columns: 140px 1fr 64px; gap: 14px; align-items: center; font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-dim); }
  .fm-cov .row .lbl { color: var(--ink); }
  .fm-cov .row .bar { height: 8px; background: var(--bg-soft); border-radius: 999px; overflow: hidden; }
  .fm-cov .row .bar i { display:block; height: 100%; background: var(--accent); }
  .fm-cov .row .pct { text-align: right; color: var(--ink-faint); }

  .fm-clarity { padding: 22px 24px; display: grid; gap: 14px; flex:1; align-content: center; }
  .fm-clarity .blk { border: 1px solid var(--rule-soft); border-radius: 8px; padding: 14px 16px; }
  .fm-clarity .blk .tag { font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-faint); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 8px; }
  .fm-clarity .blk.code { background: var(--bg-soft); }
  .fm-clarity .blk.code pre { margin: 0; font-family: var(--font-mono); font-size: 12.5px; color: var(--ink); line-height: 1.55; white-space: pre-wrap; }
  .fm-clarity .blk.code .c { color: var(--ink-faint); }
  .fm-clarity .blk.code .k { color: var(--accent); }
  .fm-clarity .blk.prose { font-family: var(--font-display); font-size: 15px; line-height: 1.5; color: var(--ink); }
  .fm-clarity .blk.prose .hl { color: var(--accent-2); font-weight: 500; }

  .fm-links { padding: 22px 26px; font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-dim); line-height: 1.9; flex:1; display: grid; align-content: center; gap: 10px; }
  .fm-links .group .ghead { color: var(--ink-faint); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 4px; font-family: var(--font-mono); }
  .fm-links .node { color: var(--ink); }
  .fm-links .arrow { color: var(--accent); margin: 0 6px; }

  @media (max-width: 960px) {
    .feat-row { grid-template-columns: 1fr; gap: 28px; padding: 48px 0; }
    .feat-row .feat-copy { order: 1 !important; }
    .feat-row .feat-media { order: 2 !important; min-height: 260px; }

    .chat-wrap { grid-template-columns: 1fr; gap: 28px; }
    .chat-trust { grid-template-columns: 1fr; }
    .sec-grid { grid-template-columns: 1fr 1fr; }
    .stat-strip { grid-template-columns: 1fr 1fr; }
    .stat-strip .stat { border-right: 1px solid var(--rule-soft); }
    .stat-strip .stat:nth-child(2n) { border-right: 0; }
    .stat-strip .stat:nth-child(-n+2) { border-bottom: 1px solid var(--rule-soft); }
    .pipeline { grid-template-columns: 1fr 1fr !important; gap: 20px; }
    .rt-wrap { overflow-x: auto; }
    .rt { min-width: 640px; }
    .rt-toolbar { flex-wrap: wrap; gap: 10px; }
    .features-band > .page { padding-top: 64px; padding-bottom: 64px; }
    .section { padding: 72px 0; }
  }

  @media (max-width: 560px) {
    .stat-strip { grid-template-columns: 1fr; }
    .stat-strip .stat { border-right: 0; border-bottom: 1px solid var(--rule-soft); }
    .stat-strip .stat:last-child { border-bottom: 0; }
    .sec-grid { grid-template-columns: 1fr; }
    .pipeline { grid-template-columns: 1fr !important; }
  }

  /* pipeline timeline */
  .pipeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 8px;
  }
  .pipeline::before {
    content: "";
    position: absolute; top: 22px; left: 22px; right: 22px; height: 1px;
    background: repeating-linear-gradient(to right, var(--rule) 0 6px, transparent 6px 12px);
    z-index: 0;
  }
  .pipe-step { position: relative; z-index: 1; padding-right: 18px; }
  .pipe-step .dot {
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--bg); border: 1px solid var(--rule);
    display: inline-flex; align-items: center; justify-content: center;
    font-family: var(--font-mono); font-size: 12.5px; color: var(--ink); font-weight: 500;
    margin-bottom: 18px;
  }
  .pipe-step .label {
    font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint);
    letter-spacing: .12em; text-transform: uppercase; margin-bottom: 8px;
  }
  .pipe-step h5 { font-family: var(--font-display); font-weight: 500; font-size: 18px; letter-spacing: -.01em; margin: 0 0 8px; }
  .pipe-step p { color: var(--ink-dim); font-size: 13.5px; line-height: 1.55; margin: 0; max-width: 28ch; }
  @media (max-width: 960px) {
    .pipeline { grid-template-columns: 1fr; gap: 24px; }
    .pipeline::before { display: none; }
  }

  /* graph caption */
  .graph-cap {
    margin-top: 10px;
    font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-faint);
    text-align: right; letter-spacing: .04em;
  }

  /* waitlist + requirements */
  .waitlist-grid {
    display: grid; grid-template-columns: 1.3fr .9fr; gap: 40px; align-items: stretch;
  }
  .waitlist-card, .req-card {
    border: 1px solid var(--rule); border-radius: 14px;
    padding: 48px 44px; background: var(--bg-elev);
  }
  .req-card {
    padding: 36px 32px; background: var(--bg-soft);
    display: flex; flex-direction: column;
  }
  .req-card h5 {
    font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint);
    letter-spacing: .1em; text-transform: uppercase; margin: 0 0 28px; font-weight: 500;
  }
  .req-list { display: flex; flex-direction: column; gap: 0; flex: 1; }
  .req-item {
    display: grid; grid-template-columns: 22px 1fr; gap: 16px;
    padding: 22px 0; border-top: 1px solid var(--rule-soft);
  }
  .req-item:first-child { border-top: 0; padding-top: 4px; }
  .req-item:last-child { padding-bottom: 4px; }
  .req-num {
    font-family: var(--font-mono); font-size: 11px;
    color: var(--ink-faint); letter-spacing: .04em;
    padding-top: 6px;
  }
  .req-body .req-headline {
    font-family: var(--font-display); font-weight: 500;
    font-size: 26px; line-height: 1.1; letter-spacing: -.015em;
    color: var(--ink); margin: 0 0 6px;
  }
  .req-body .req-headline em {
    color: var(--accent); font-style: italic;
  }
  .req-body .req-sub {
    color: var(--ink-dim); font-size: 14px; line-height: 1.5;
    margin: 0;
  }
  .req-footnote {
    margin-top: 22px; padding-top: 18px;
    border-top: 1px solid var(--rule-soft);
    font-family: var(--font-mono); font-size: 11px;
    color: var(--ink-faint); letter-spacing: .04em; line-height: 1.55;
  }
  .req-footnote::before {
    content: "→ "; color: var(--accent);
  }
  @media (max-width: 960px) { .waitlist-grid { grid-template-columns: 1fr; } }

  /* security footnote */
  .sec-foot {
    margin-top: 18px; padding: 14px 18px;
    font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-faint);
    border-left: 2px solid var(--accent-2); background: var(--bg-soft);
    line-height: 1.5;
  }
  .sec-foot b { color: var(--ink-dim); font-weight: 500; }

  /* density adjustments */
  :root[data-density="compact"] .hero { padding: 48px 0 20px; }
  :root[data-density="compact"] .section { padding: 64px 0; }
  :root[data-density="compact"] .feat { min-height: 170px; padding: 20px 18px 22px; }
  :root[data-density="compact"] h1.hero-title { font-size: clamp(36px, 4.4vw, 60px); }

  :root[data-density="roomy"] .section { padding: 130px 0; }
  :root[data-density="roomy"] .feat { min-height: 240px; padding: 32px 30px; }

  /* security grid */
  .sec-grid { display:grid; grid-template-columns: repeat(4, 1fr); gap:1px; background:var(--rule-soft); border:1px solid var(--rule-soft); border-radius:12px; overflow:hidden; }
  .sec-grid > .cell { background: var(--bg-elev); padding: 24px; }
  .sec-grid .cell-label { font-family:var(--font-mono); font-size:11px; color:var(--ink-faint); letter-spacing:.08em; text-transform:uppercase; margin-bottom:10px; }
  .sec-grid .cell-head { font-family:var(--font-display); font-size:18px; font-weight:500; margin-bottom:8px; color: var(--ink); }
  .sec-grid .cell-body { color:var(--ink-dim); font-size:13.5px; line-height:1.55; margin:0; }

  /* -- reusable content classes (lifted from inline styles) -- */
  .section-deck {
    grid-column: 2;
    color: var(--ink-dim);
    margin: 14px 0 0;
    max-width: 58ch;
    font-size: 15px;
    line-height: 1.55;
  }
  .section-deck.narrow { max-width: 56ch; }
  .inline-code {
    font-family: var(--font-mono);
    color: var(--accent);
  }
  .btn-row {
    display: flex; gap: 12px; margin-top: 26px;
  }
  .waitlist-h2 {
    font-family: var(--font-display); font-weight: 500;
    font-size: clamp(28px, 3vw, 40px);
    line-height: 1.05; letter-spacing: -.02em;
    margin: 0 0 18px;
  }
  .waitlist-h2 em {
    color: var(--accent); font-style: italic;
  }
  .waitlist-lede {
    color: var(--ink-dim); max-width: 48ch;
    font-size: 15px; line-height: 1.55;
  }
  .rt-muted { color: var(--ink-dim); }
  .rt-num { font-family: var(--font-mono); font-size: 12.5px; }
  .rt-num-dim { font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-dim); }

  @media (max-width: 960px) {
    .hero, .section-head, .split, .features, .f-grid { grid-template-columns: 1fr !important; }
    .feat, .feat.wide, .feat.tall { grid-column: span 1; grid-row: auto; }
    .nav-links { display: none; }
    .nav-cta { display: none; }
    .nav-burger { display: inline-flex; }
  }

/* ============ WAITLIST PAGE OVERRIDES + UNIQUE STYLES ============ */