/* ============================================================
   OreAcle — design system
   Fonts: Space Grotesk (display) · Inter (body) · JetBrains Mono (data)
   ============================================================ */

:root{
  --bg:#0a0e14; --surface:#0f1622; --surface-2:#131c2b; --surface-3:#18232f;
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.055);
  --text:#e8eef6; --muted:#9aabbd; --faint:#6b7c8f;
  --accent:#ffb020; --accent-2:#36d6e7; --accent-3:#8b6cff;
  --ok:#2fbf71; --watch:#f5a623; --alert:#ff4d5e; --info:#36d6e7;
  --grad:linear-gradient(100deg,#ffd790,#ffb020 38%,#36d6e7);
  --grad-soft:linear-gradient(135deg,rgba(255,176,32,.16),rgba(54,214,231,.14));
  --r:14px; --r-sm:10px; --r-lg:22px; --r-pill:999px;
  --shadow:0 16px 50px rgba(0,0,0,.40); --shadow-sm:0 6px 22px rgba(0,0,0,.30);
  --f-display:'Space Grotesk',var(--f-body); --f-body:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --maxw:1200px; --nav-h:66px;
}
[data-theme="light"]{
  --bg:#eef2f8; --surface:#ffffff; --surface-2:#f3f6fb; --surface-3:#eaf0f8;
  --line:rgba(12,22,40,.12); --line-2:rgba(12,22,40,.07);
  --text:#0c1320; --muted:#54657c; --faint:#8595a8;
  --shadow:0 16px 44px rgba(20,40,80,.12); --shadow-sm:0 6px 20px rgba(20,40,80,.10);
  --grad:linear-gradient(100deg,#e0901a,#ff7a45 45%,#1aa6c4);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 14px)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--f-body);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--f-display);font-weight:600;line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h2{font-size:clamp(1.6rem,3.2vw,2.5rem)}
h3{font-size:1.18rem}
p{margin:0 0 1rem}
a{color:inherit;text-decoration:none}
em{font-style:normal;color:var(--accent)}
code{font-family:var(--f-mono);font-size:.86em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:600;font-size:.95rem;
  padding:.72em 1.25em;border-radius:var(--r-pill);border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease,border-color .2s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:.5em .9em;font-size:.85rem}
.btn-primary{background:var(--accent);color:#1a1206;box-shadow:0 8px 24px rgba(255,176,32,.30)}
.btn-primary:hover{box-shadow:0 10px 30px rgba(255,176,32,.45);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent);background:rgba(255,176,32,.07)}
.icon-btn{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--text);cursor:pointer;transition:.2s}
.icon-btn:hover{border-color:var(--accent);color:var(--accent)}
.i-sun{display:none}
[data-theme="light"] .i-moon{display:none}
[data-theme="light"] .i-sun{display:block}

/* ---------- navbar ---------- */
.navbar{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;
  background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-2);transition:background .3s,box-shadow .3s}
.navbar.scrolled{background:color-mix(in srgb,var(--bg) 92%,transparent);box-shadow:var(--shadow-sm)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:9px;font-family:var(--f-display);font-weight:700;font-size:1.15rem}
.brand-mark{display:grid;place-items:center;filter:drop-shadow(0 2px 8px rgba(255,176,32,.4))}
.brand-accent{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:.5em .8em;border-radius:8px;color:var(--muted);font-weight:500;font-size:.92rem;transition:.18s}
.nav-link:hover{color:var(--text);background:var(--surface-2)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{content:"";display:block;height:2px;border-radius:2px;background:var(--accent);margin-top:3px}
.nav-cta-soft{color:var(--accent);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px}
.hamburger{display:none;flex-direction:column;gap:5px;width:40px;height:40px;border:1px solid var(--line);
  border-radius:10px;background:transparent;cursor:pointer;padding:0;align-items:center;justify-content:center}
.hamburger span{width:18px;height:2px;background:var(--text);border-radius:2px;transition:.25s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- views ---------- */
.view{display:none}
.view.view-active{display:block}
main{padding-top:var(--nav-h)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(56px,9vw,120px) 0 clamp(40px,6vw,80px);isolation:isolate}
.hero-bg{position:absolute;inset:-20% -10% auto;height:120%;z-index:-2;
  background:
    radial-gradient(50% 50% at 18% 12%,rgba(255,176,32,.22),transparent 60%),
    radial-gradient(45% 45% at 85% 18%,rgba(54,214,231,.18),transparent 60%),
    radial-gradient(40% 50% at 60% 90%,rgba(139,108,255,.14),transparent 60%)}
.hero-grid{position:absolute;inset:0;z-index:-1;opacity:.5;
  background-image:linear-gradient(var(--line-2) 1px,transparent 1px),linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 35%,transparent 75%);
          mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 35%,transparent 75%)}
.hero-inner{max-width:960px;margin:0 auto;padding:0 24px;text-align:center}
.hero-badges{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:22px}
.pill{display:inline-flex;align-items:center;gap:.5em;font-size:.78rem;font-weight:600;letter-spacing:.02em;
  padding:.45em .9em;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--surface);color:var(--muted)}
.pill-accent{border-color:rgba(255,176,32,.4);color:var(--accent);background:rgba(255,176,32,.08)}
.hero-title{font-size:clamp(2.1rem,5.4vw,4rem);letter-spacing:-.02em;margin-bottom:.4em}
.hero-sub{font-size:clamp(1rem,1.6vw,1.22rem);color:var(--muted);max-width:680px;margin:0 auto 2rem}
.hero-sub strong{color:var(--text)}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:46px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:760px;margin:0 auto}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 12px}
.stat-num{font-family:var(--f-display);font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{font-size:.8rem;color:var(--muted)}

/* ---------- sections ---------- */
.section{padding:clamp(56px,8vw,104px) 0}
.section-alt{background:var(--surface)}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px}
.lead{font-size:1.08rem;color:var(--muted)}
.section-head h2 em{color:var(--accent)}

/* cards grid */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;
  transition:transform .25s,border-color .25s,box-shadow .25s}
.section-alt .card{background:var(--bg)}
.card:hover{transform:translateY(-4px);border-color:rgba(255,176,32,.35);box-shadow:var(--shadow)}
.card h3{margin-bottom:.4em}
.card p{color:var(--muted);margin:0}
.card-ic{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;font-size:1.5rem;margin-bottom:16px;
  background:var(--grad-soft);border:1px solid var(--line)}

/* split */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:46px;align-items:center;margin-top:64px}
.split-text h3{font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:.5em}
.split-text p{color:var(--muted)}
.split-text strong{color:var(--text)}
.quote-line{margin-top:22px;padding:18px 22px;border-left:3px solid var(--accent);background:var(--surface-2);
  border-radius:0 var(--r) var(--r) 0;font-family:var(--f-display);font-size:1.05rem;color:var(--text)}
.section .split-visual{display:flex;flex-direction:column;gap:16px;align-items:center;text-align:center}
.flow-mini{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:center;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 22px;width:100%}
.fm-step{display:flex;align-items:center;gap:8px;font-family:var(--f-display);font-weight:600}
.fm-dot{width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,176,32,.16)}
.fm-arrow{color:var(--faint)}
.fm-cap{color:var(--muted);font-size:.95rem;max-width:340px}

/* ---------- architecture ---------- */
.arch{display:grid;grid-template-columns:1fr auto 1.25fr auto 1fr;gap:14px;align-items:stretch;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}
.section-alt .arch{background:var(--bg)}
.arch-lane{display:flex;flex-direction:column;gap:10px}
.lane-head{display:flex;align-items:center;gap:10px;padding-bottom:6px;margin-bottom:4px;border-bottom:1px dashed var(--line)}
.lane-ic{font-size:1.4rem}
.lane-title{font-family:var(--f-display);font-weight:700;font-size:1rem}
.lane-sub{font-size:.74rem;color:var(--faint)}
.node{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:11px 13px;transition:.2s}
.node b{display:block;font-size:.9rem}
.node span{font-size:.74rem;color:var(--muted)}
.node:hover{border-color:var(--accent);transform:translateX(2px)}
.node-sense{border-left:3px solid var(--info)}
.node-out{border-left:3px solid var(--watch)}
.node-act{border-left:3px solid var(--accent)}
.node-brain{border-left:3px solid var(--accent-3)}
.node-llm{background:linear-gradient(135deg,rgba(139,108,255,.14),rgba(54,214,231,.08))}
.node-ui{border-left:3px solid var(--ok)}
.arch-lane-brain .lane-title{color:var(--accent)}
.arch-flow{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-width:62px}
.flow-arrow{font-size:1.6rem;color:var(--accent)}
.flow-label{font-size:.68rem;color:var(--faint);text-align:center;font-family:var(--f-mono);line-height:1.3}
.arch-ribbon{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:18px;
  padding:14px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--grad-soft);font-size:.9rem}
.arch-ribbon .dotsep{color:var(--accent)}
.note{margin-top:24px;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;font-size:.92rem;color:var(--muted)}
.section-alt .note{background:var(--bg)}
.note b{color:var(--text)}
.code{background:#06090f;border:1px solid var(--line);border-radius:10px;padding:14px 16px;overflow-x:auto;margin:12px 0;
  font-family:var(--f-mono);font-size:.82rem;color:#d6e1f0;line-height:1.55}
[data-theme="light"] .code{background:#0e1726;color:#d6e1f0}
.sim-note{display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.85rem}
.sim-badge,.badge-sample{font-family:var(--f-mono);font-size:.66rem;font-weight:600;letter-spacing:.04em;
  padding:.15em .5em;border-radius:5px;background:rgba(245,166,35,.16);color:var(--watch);border:1px solid rgba(245,166,35,.4);vertical-align:middle}

/* ---------- hardware ---------- */
.hw-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px}
.hw-board{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;position:relative;overflow:hidden}
.hw-board::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 50% at 80% 0%,rgba(54,214,231,.12),transparent 60%);pointer-events:none}
.chip{display:inline-block;font-family:var(--f-mono);font-size:.7rem;font-weight:600;color:var(--accent-2);
  border:1px solid rgba(54,214,231,.4);background:rgba(54,214,231,.08);padding:.2em .6em;border-radius:6px;margin-bottom:12px}
.hw-sub{color:var(--muted);margin:.2em 0 18px}
.hw-specs{list-style:none;padding:0;margin:0 0 18px}
.hw-specs li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-top:1px solid var(--line-2);font-size:.9rem}
.hw-specs span{color:var(--faint)}
.hw-specs b{text-align:right}
.hw-myth{font-size:.85rem;color:var(--muted);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin:0}
.hw-myth b{color:var(--accent)}
.hw-table-wrap{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:8px 8px 0;overflow:hidden}
.hw-table{width:100%;border-collapse:collapse;font-size:.9rem}
.hw-table th,.hw-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line-2)}
.hw-table th{font-family:var(--f-display);font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--faint)}
.hw-table td b{font-weight:600}
.hw-table tr:hover td{background:var(--bg)}
.hw-cost{padding:16px 14px;margin:0;font-size:.95rem;color:var(--muted)}

/* ---------- ai stack ---------- */
.ai-card{display:flex;flex-direction:column}
.ai-tag{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-2);margin-bottom:10px}
.ai-lib{font-family:var(--f-mono);font-size:.82rem;color:var(--accent);margin:-.4em 0 .8em}
.ai-card-hero{border-color:rgba(255,176,32,.4);background:linear-gradient(160deg,rgba(255,176,32,.10),var(--bg) 70%)}
.section-alt .ai-card-hero{background:linear-gradient(160deg,rgba(255,176,32,.10),var(--surface-2) 70%)}
.ticks{list-style:none;padding:0;margin:14px 0 0;display:flex;flex-direction:column;gap:7px}
.ticks li{position:relative;padding-left:22px;font-size:.88rem;color:var(--muted)}
.ticks li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:700}
.why-free{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.wf-item{display:flex;gap:14px;align-items:flex-start;background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.section-alt .wf-item{background:var(--surface-2)}
.wf-num{font-family:var(--f-display);font-weight:700;font-size:1.4rem;color:var(--accent);min-width:36px}
.wf-item p{margin:0;font-size:.9rem;color:var(--muted)}

/* ---------- cta band + footer ---------- */
.cta-band{background:var(--grad-soft)}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-inner h2{margin-bottom:.3em}
.cta-inner .lead{max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.footer{background:var(--surface);border-top:1px solid var(--line)}
.footer-inner{display:flex;justify-content:space-between;gap:40px;padding:54px 24px;flex-wrap:wrap}
.footer-brand{max-width:420px}
.footer-brand .brand-text{font-family:var(--f-display);font-weight:700;font-size:1.2rem}
.footer-brand p{color:var(--muted);font-size:.9rem;margin-top:10px}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:8px 30px}
.footer-links a{color:var(--muted);font-size:.9rem;transition:.18s}
.footer-links a:hover{color:var(--accent)}
.footer-base{border-top:1px solid var(--line-2);padding:18px 0;font-size:.82rem;color:var(--faint);text-align:center}

/* ============================================================
   CONSOLE (mock dashboard)
   ============================================================ */
.console{max-width:1320px;margin:0 auto;padding:18px 18px 60px}
.console-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 16px;margin-bottom:12px}
.cb-left,.cb-right{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.cb-title{font-family:var(--f-display);font-weight:700;font-size:1.05rem}
.cb-zone{color:var(--muted);font-size:.9rem}
.cb-clock{font-family:var(--f-mono);color:var(--muted);font-size:.9rem}
.live-dot{display:inline-flex;align-items:center;gap:7px;font-size:.78rem;font-weight:600;color:var(--ok);letter-spacing:.05em}
.live-dot span{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(47,191,113,.6);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(47,191,113,.55)}70%{box-shadow:0 0 0 8px rgba(47,191,113,0)}100%{box-shadow:0 0 0 0 rgba(47,191,113,0)}}

.scenario-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 16px;margin-bottom:12px}
.sc-label{font-weight:600;font-size:.86rem;color:var(--muted)}
.sc-btn{font-family:var(--f-body);font-weight:600;font-size:.86rem;color:var(--text);cursor:pointer;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-pill);padding:.5em 1em;transition:.18s}
.sc-btn:hover{border-color:var(--accent);color:var(--accent)}
.sc-btn.is-active{background:var(--accent);color:#1a1206;border-color:var(--accent)}
.sc-reset{margin-left:0}
.sc-hint{flex:1;min-width:240px;text-align:right;font-size:.76rem;color:var(--faint)}

/* alert banner */
.alert-banner{display:flex;align-items:center;gap:18px;border-radius:var(--r);padding:16px 20px;margin-bottom:14px;
  border:1px solid var(--line);background:var(--surface);transition:.4s}
.ab-state{font-family:var(--f-display);font-weight:700;font-size:1.05rem;letter-spacing:.04em;padding:.4em .9em;border-radius:10px;white-space:nowrap}
.ab-body{flex:1;min-width:0}
.ab-headline{font-size:1.02rem;font-weight:600}
.ab-action{margin-top:6px}
.ab-action-chip{display:inline-flex;align-items:center;gap:7px;font-size:.82rem;font-weight:600;
  padding:.32em .8em;border-radius:var(--r-pill);background:var(--bg);border:1px solid var(--line)}
.ab-action-chip::before{content:"➤";color:var(--accent)}
.ab-ack{background:transparent;border:1px solid var(--line);color:var(--text);border-radius:10px;padding:.55em 1em;cursor:pointer;font-weight:600;font-size:.85rem;transition:.18s}
.ab-ack:hover{border-color:var(--accent)}
.status-ok .ab-state{background:rgba(47,191,113,.16);color:var(--ok)}
.status-watch .ab-state{background:rgba(245,166,35,.16);color:var(--watch)}
.status-alert .ab-state{background:rgba(255,77,94,.16);color:var(--alert)}
.alert-banner.status-watch{border-color:rgba(245,166,35,.45);background:linear-gradient(90deg,rgba(245,166,35,.10),var(--surface) 60%)}
.alert-banner.status-alert{border-color:rgba(255,77,94,.5);background:linear-gradient(90deg,rgba(255,77,94,.14),var(--surface) 60%);animation:alertpulse 1.6s infinite}
@keyframes alertpulse{0%,100%{box-shadow:0 0 0 0 rgba(255,77,94,0)}50%{box-shadow:0 0 26px -4px rgba(255,77,94,.5)}}

/* console grid */
.console-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px}
.panel-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px}
.panel-head h3{margin:0;font-size:1rem}
.panel-sub{font-size:.74rem;color:var(--faint);font-family:var(--f-mono)}
.panel-zones{grid-column:span 8}
.panel-vent{grid-column:span 4}
.panel-gauges{grid-column:span 12}
.panel-trends{grid-column:span 7}
.panel-feed{grid-column:span 5}
.panel-copilot{grid-column:span 12}

/* zones */
.zones{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.zone-card{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:14px;transition:.25s;cursor:default;border-top:3px solid var(--ok)}
.zone-card.status-watch{border-top-color:var(--watch)}
.zone-card.status-alert{border-top-color:var(--alert)}
.zone-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.zone-name{font-family:var(--f-display);font-weight:700}
.zone-dot{width:10px;height:10px;border-radius:50%;background:var(--ok)}
.status-watch .zone-dot{background:var(--watch)}
.status-alert .zone-dot{background:var(--alert);animation:pulse 1.4s infinite}
.zone-state{font-size:.74rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--ok)}
.status-watch .zone-state{color:var(--watch)}
.status-alert .zone-state{color:var(--alert)}
.zone-metrics{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:.78rem;color:var(--muted);font-family:var(--f-mono)}
.zone-metrics b{color:var(--text);font-weight:600}

/* ventilation */
.vent{display:flex;gap:18px;align-items:center}
.fan-wrap{position:relative;display:grid;place-items:center;flex-shrink:0}
.fan-ring{fill:none;stroke:var(--line);stroke-width:2}
.fan-blades{fill:var(--accent);transform-origin:50px 50px;animation:spin 2s linear infinite}
.fan-hub{fill:var(--text)}
@keyframes spin{to{transform:rotate(360deg)}}
.fan-readout{position:absolute;font-family:var(--f-display);font-weight:700;font-size:1.3rem;display:flex;align-items:baseline}
.fan-readout small{font-size:.7rem;color:var(--muted);margin-left:1px}
.vent-controls{flex:1;min-width:0}
.seg{display:inline-flex;background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:3px;margin-bottom:12px}
.seg-btn{border:none;background:transparent;color:var(--muted);font-weight:600;font-size:.82rem;padding:.45em .8em;border-radius:7px;cursor:pointer;transition:.18s;font-family:var(--f-body)}
.seg-btn.is-active{background:var(--accent);color:#1a1206}
.slider-label{display:block;font-size:.78rem;color:var(--muted);margin-bottom:12px}
.slider-label input[type=range]{display:block;width:100%;margin-top:8px;accent-color:var(--accent);cursor:pointer}
.slider-label input:disabled{opacity:.5;cursor:not-allowed}
.vent-meta{display:flex;gap:18px;flex-wrap:wrap}
.vent-meta div{font-size:.74rem}
.vent-meta span{color:var(--faint);display:flex;align-items:center;gap:5px}
.vent-meta b{font-family:var(--f-mono);font-size:.9rem}

/* gauges */
.gauges{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.gauge{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:12px 8px 10px;text-align:center}
.gauge svg{width:100%;height:auto;max-width:120px}
.gauge-val{font-family:var(--f-display);font-weight:700;font-size:1.15rem;margin-top:-6px}
.gauge-val small{font-size:.62rem;color:var(--muted);font-weight:500}
.gauge-label{font-size:.72rem;color:var(--muted);margin-top:2px;display:flex;align-items:center;justify-content:center;gap:4px}

/* trends */
.chart-legend{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:8px}
.lg-item{display:inline-flex;align-items:center;gap:6px;font-size:.76rem;color:var(--muted);font-family:var(--f-mono)}
.lg-swatch{width:14px;height:3px;border-radius:2px}
.chart-wrap{width:100%;height:220px}
#trendChart{width:100%;height:100%;display:block}
.grid-line{stroke:var(--line-2);stroke-width:1}
.axis-label{fill:var(--faint);font-size:10px;font-family:var(--f-mono)}

/* feed */
.feed{list-style:none;margin:0;padding:0;max-height:300px;overflow-y:auto;display:flex;flex-direction:column;gap:8px}
.feed-item{display:flex;gap:10px;background:var(--surface-2);border:1px solid var(--line);border-left-width:3px;border-radius:9px;padding:10px 12px;animation:slidein .35s ease}
@keyframes slidein{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.feed-item.sev-ok{border-left-color:var(--ok)}
.feed-item.sev-watch{border-left-color:var(--watch)}
.feed-item.sev-alert{border-left-color:var(--alert)}
.feed-time{font-family:var(--f-mono);font-size:.72rem;color:var(--faint);white-space:nowrap}
.feed-text{font-size:.86rem}
.feed-text b{color:var(--text)}
.feed-empty{color:var(--faint);font-size:.86rem;text-align:center;padding:24px}

/* copilot */
.copilot{display:flex;flex-direction:column;gap:12px}
.cp-messages{display:flex;flex-direction:column;gap:10px;max-height:320px;overflow-y:auto;padding:4px}
.cp-msg{max-width:80%;padding:11px 14px;border-radius:14px;font-size:.9rem;animation:slidein .3s ease}
.cp-user{align-self:flex-end;background:var(--accent);color:#1a1206;border-bottom-right-radius:4px}
.cp-ai{align-self:flex-start;background:var(--surface-2);border:1px solid var(--line);border-bottom-left-radius:4px}
.cp-ai .cp-who{font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);margin-bottom:4px}
.cp-ai .cp-typing span{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--muted);margin-right:3px;animation:blink 1.2s infinite}
.cp-ai .cp-typing span:nth-child(2){animation-delay:.2s}
.cp-ai .cp-typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.3}40%{opacity:1}}
.cp-suggest{display:flex;gap:8px;flex-wrap:wrap}
.cp-chip{font-size:.78rem;color:var(--muted);background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-pill);padding:.4em .8em;cursor:pointer;transition:.18s}
.cp-chip:hover{border-color:var(--accent);color:var(--accent)}
.cp-form{display:flex;gap:8px}
.cp-form input{flex:1;background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:.7em .9em;color:var(--text);font-family:var(--f-body);font-size:.9rem}
.cp-form input:focus{outline:none;border-color:var(--accent)}
.cp-disclaimer{font-size:.74rem;color:var(--faint);margin:0}

/* ============================================================
   DOCS
   ============================================================ */
.docs{display:grid;grid-template-columns:280px 1fr;gap:30px;max-width:1180px;margin:0 auto;padding:30px 24px 90px;align-items:start}
.docs-toc{position:sticky;top:calc(var(--nav-h) + 20px);max-height:calc(100vh - var(--nav-h) - 50px);overflow-y:auto;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.toc-head{font-family:var(--f-display);font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--faint);margin-bottom:12px}
#tocNav{display:flex;flex-direction:column;gap:2px}
#tocNav a{font-size:.85rem;color:var(--muted);padding:5px 10px;border-radius:7px;border-left:2px solid transparent;transition:.15s;line-height:1.35}
#tocNav a:hover{color:var(--text);background:var(--surface-2)}
#tocNav a.toc-h3{padding-left:22px;font-size:.8rem}
#tocNav a.active{color:var(--accent);border-left-color:var(--accent);background:rgba(255,176,32,.07)}
.docs-content{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(22px,4vw,52px)}
.docs-loading{color:var(--muted);text-align:center;padding:60px}
/* rendered markdown */
.docs-content h1{font-size:clamp(1.8rem,4vw,2.6rem);margin:.2em 0 .5em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.docs-content h2{font-size:clamp(1.4rem,2.6vw,1.9rem);margin:1.8em 0 .6em;padding-top:.4em;border-top:1px solid var(--line-2)}
.docs-content h2:first-of-type{border-top:none}
.docs-content h3{font-size:1.18rem;margin:1.5em 0 .5em;color:var(--accent)}
.docs-content h4{font-size:1rem;margin:1.2em 0 .4em}
.docs-content p,.docs-content li{color:var(--muted)}
.docs-content strong{color:var(--text)}
.docs-content a{color:var(--accent-2);text-decoration:underline;text-underline-offset:2px}
.docs-content ul,.docs-content ol{padding-left:1.3em}
.docs-content li{margin:.3em 0}
.docs-content blockquote{margin:1.2em 0;padding:14px 20px;border-left:3px solid var(--accent);background:var(--surface-2);border-radius:0 var(--r) var(--r) 0;color:var(--text)}
.docs-content blockquote p{color:var(--text);margin:.3em 0}
.docs-content code{background:var(--surface-3);border:1px solid var(--line-2);border-radius:5px;padding:.12em .4em;color:var(--accent)}
.docs-content pre{background:#06090f;border:1px solid var(--line);border-radius:10px;padding:16px 18px;overflow-x:auto;margin:1.2em 0}
.docs-content pre code{background:none;border:none;color:#d6e1f0;padding:0}
.docs-content hr{border:none;border-top:1px solid var(--line);margin:2.4em 0}
.docs-content table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.9rem;display:block;overflow-x:auto}
.docs-content th,.docs-content td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.docs-content th{background:var(--surface-2);font-family:var(--f-display);color:var(--text)}
.docs-content td{color:var(--muted)}
.docs-mermaid-note{margin:1.2em 0;padding:16px 20px;border:1px dashed var(--accent);border-radius:var(--r);background:var(--grad-soft);color:var(--text);font-size:.92rem}
.docs-mermaid-note a{color:var(--accent);font-weight:600}
.to-top{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:var(--surface);color:var(--text);font-size:1.2rem;cursor:pointer;box-shadow:var(--shadow-sm);opacity:0;pointer-events:none;transition:.25s;z-index:50}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.fan-blades,.live-dot span,.zone-dot{animation:none!important}}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:980px){
  .nav-links{position:fixed;top:var(--nav-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--bg);border-bottom:1px solid var(--line);padding:12px 16px 18px;transform:translateY(-130%);
    transition:transform .3s ease;box-shadow:var(--shadow)}
  .nav-links.open{transform:none}
  .nav-link{padding:.8em 1em}
  .hamburger{display:flex}
  .nav-github{display:none}
  .split{grid-template-columns:1fr;gap:30px}
  .hw-grid{grid-template-columns:1fr}
  .arch{grid-template-columns:1fr;gap:10px}
  .arch-flow{flex-direction:row;min-height:40px;gap:10px}
  .arch-flow .flow-arrow{transform:rotate(90deg)}
  .panel-zones,.panel-vent,.panel-gauges,.panel-trends,.panel-feed,.panel-copilot{grid-column:span 12}
  .gauges{grid-template-columns:repeat(3,1fr)}
  .docs{grid-template-columns:1fr}
  .docs-toc{display:none}
}
@media (max-width:680px){
  .cards-3,.why-free{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .zones{grid-template-columns:repeat(2,1fr)}
  .gauges{grid-template-columns:repeat(2,1fr)}
  .footer-inner{flex-direction:column;gap:24px}
  .vent{flex-direction:column;align-items:stretch}
  .sc-hint{display:none}
  .alert-banner{flex-wrap:wrap}
  .ab-ack{order:3}
}

/* ============================================================
   CONTEXT DIAGRAM
   ============================================================ */
.ctx-diagram{margin:0 0 8px;border:0;padding:0}
.ctx-inner{display:grid;grid-template-columns:1fr 72px 1fr 72px 1fr;gap:10px;align-items:center;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 18px}
.ctx-zone{display:flex;flex-direction:column;gap:10px}
.ctx-zone-label{font-family:var(--f-display);font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--faint);margin-bottom:4px;padding-bottom:6px;border-bottom:1px dashed var(--line)}
.ctx-items{display:flex;flex-direction:column;gap:8px}
.ctx-item{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);
  border-radius:10px;padding:8px 10px;font-size:.82rem;color:var(--muted)}
.ctx-item-miner{border-left:3px solid var(--accent)}
.ctx-item-supervisor{border-left:3px solid var(--ok)}
.ctx-item-hazard{border-left:3px solid var(--watch)}
.ctx-item-node{border-left:3px solid var(--accent-2)}
.ctx-icon{width:36px;height:36px;flex-shrink:0}
.ctx-persona{font-weight:700;color:var(--text);font-family:var(--f-display)}
.ctx-hazard{font-weight:600;color:var(--watch)}
.ctx-badge-row{display:flex;gap:5px;flex-wrap:wrap;padding:4px 0}
.ctx-badge{font-size:.68rem;font-weight:700;letter-spacing:.04em;padding:.2em .55em;border-radius:var(--r-pill)}
.ctx-badge-offline{background:rgba(139,108,255,.14);color:var(--accent-3);border:1px solid rgba(139,108,255,.3)}
.ctx-badge-free{background:rgba(255,176,32,.12);color:var(--accent);border:1px solid rgba(255,176,32,.3)}
.ctx-badge-oss{background:rgba(54,214,231,.12);color:var(--accent-2);border:1px solid rgba(54,214,231,.3)}
.ctx-connector{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-width:60px}
.ctx-conn-line{position:relative;width:100%;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-2));
  border-radius:2px;overflow:hidden}
.ctx-conn-line-return{background:linear-gradient(90deg,var(--ok),var(--accent))}
.ctx-conn-pulse{position:absolute;top:-2px;left:-20%;width:20%;height:7px;background:rgba(255,255,255,.7);
  border-radius:4px;animation:ctx-move 1.8s linear infinite}
.ctx-conn-pulse-return{animation-direction:reverse}
@keyframes ctx-move{0%{left:-20%}100%{left:110%}}
.ctx-conn-label{font-size:.66rem;color:var(--faint);text-align:center;font-family:var(--f-mono);line-height:1.35}
.ctx-caption{margin-top:14px;font-size:.84rem;color:var(--muted);text-align:center;font-style:italic;padding:0 8px}

/* ============================================================
   INDUSTRY IN ACTION
   ============================================================ */
.industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:22px}
.industry-card{display:flex;flex-direction:column;gap:8px}
.ind-tag{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-2);margin-bottom:2px}
.ind-company{font-family:var(--f-mono);font-size:.8rem;color:var(--accent);margin:0}
.industry-card p{color:var(--muted);font-size:.9rem;margin:0;flex:1}
.ind-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:10px}
.ind-link{font-size:.78rem;font-weight:600;color:var(--accent-2);text-decoration:underline;text-underline-offset:2px;transition:.15s}
.ind-link:hover{color:var(--accent)}
.industry-note{background:var(--surface-2);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:0 var(--r) var(--r) 0;padding:14px 18px;font-size:.9rem;color:var(--muted)}
.industry-note b{color:var(--text)}
.industry-card a{color:var(--accent-2);text-underline-offset:2px}
.industry-card a:hover{color:var(--accent)}

/* ---------- light theme polish ---------- */
[data-theme="light"] .ctx-inner{background:var(--surface);border-color:var(--line)}
[data-theme="light"] .ctx-item{background:var(--surface-2)}
[data-theme="light"] .arch{background:var(--surface)}
[data-theme="light"] .node{background:var(--surface-2)}
[data-theme="light"] .arch-lane-brain .node-llm{background:linear-gradient(135deg,rgba(139,108,255,.10),rgba(54,214,231,.06))}
[data-theme="light"] .hero-bg{opacity:.55}
[data-theme="light"] .docs-content pre,[data-theme="light"] .code{background:#1a2236}

@media (max-width:980px){
  .ctx-inner{grid-template-columns:1fr;gap:8px}
  .ctx-connector{flex-direction:row;min-width:auto;min-height:40px;padding:0 8px}
  .ctx-conn-line{height:100%;width:3px;flex:1}
  .ctx-conn-pulse{top:-20%;left:-2px;width:7px;height:20%;animation-name:ctx-move-v}
  @keyframes ctx-move-v{0%{top:-20%}100%{top:110%}}
  .industry-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .industry-grid{grid-template-columns:1fr}
}

/* ============================================================
   BACKEND CONNECTION STATUS BADGE
   ============================================================ */
.conn-status{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  font-size:.74rem;font-weight:600;letter-spacing:.03em;font-family:var(--f-mono);
  white-space:nowrap;transition:background .3s,color .3s,border-color .3s;
}
.conn-status::before{
  content:"";width:7px;height:7px;border-radius:50%;flex-shrink:0;
}
.conn-online{
  background:rgba(47,191,113,.14);color:var(--ok);border:1px solid rgba(47,191,113,.28);
}
.conn-online::before{background:var(--ok);animation:conn-pulse 1.6s ease infinite}
.conn-offline{
  background:rgba(255,77,94,.10);color:var(--alert);border:1px solid rgba(255,77,94,.22);
}
.conn-offline::before{background:var(--alert)}
@keyframes conn-pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.75)}}

/* ============================================================
   ZONE CARD OCCUPANCY LINE
   ============================================================ */
.zone-occ{
  font-size:.76rem;color:var(--muted);margin-top:4px;
  padding-top:5px;border-top:1px solid var(--line-2);
}

/* ============================================================
   LIGHT THEME: CONSOLE OVERRIDES
   ============================================================ */
[data-theme="light"] .conn-online{background:rgba(0,160,80,.10);border-color:rgba(0,160,80,.25)}
[data-theme="light"] .conn-offline{background:rgba(200,0,30,.08);border-color:rgba(200,0,30,.20)}

/* ============================================================
   BUILD TRACKER
   ============================================================ */
.tracker{min-height:100vh;padding-bottom:80px}
.tracker-hero{padding:60px 0 40px;background:var(--surface-2);border-bottom:1px solid var(--line)}
.tracker-hero .eyebrow{margin-bottom:14px}
.tracker-hero h1{font-size:clamp(1.8rem,4vw,2.8rem);margin-bottom:12px}
.tracker-hero .lead{color:var(--muted);max-width:660px;margin-bottom:24px}
.tracker-status-pills{display:flex;gap:8px;flex-wrap:wrap}
.tracker-body{padding-top:48px}
.tracker-back{display:flex;gap:12px;padding-top:16px;padding-bottom:16px}

/* sections */
.tk-section{margin-bottom:56px}
.tk-sec-head{display:flex;align-items:center;gap:14px;margin-bottom:20px;padding-bottom:12px;
  border-bottom:1px solid var(--line)}
.tk-sec-head h2{margin:0;font-size:1.35rem}
.tk-sec-lead{color:var(--muted);margin-bottom:20px;max-width:720px}

/* status badges */
.tk-badge{display:inline-flex;align-items:center;font-size:.68rem;font-weight:700;
  letter-spacing:.05em;text-transform:uppercase;padding:.22em .65em;border-radius:var(--r-pill);
  white-space:nowrap;flex-shrink:0}
.tk-done{background:rgba(47,191,113,.14);color:var(--ok);border:1px solid rgba(47,191,113,.28)}
.tk-inprog{background:rgba(255,176,32,.12);color:var(--accent);border:1px solid rgba(255,176,32,.28)}
.tk-optional{background:rgba(139,108,255,.14);color:var(--accent-3);border:1px solid rgba(139,108,255,.28)}
.tk-pending{background:var(--surface-2);color:var(--muted);border:1px solid var(--line)}

/* pill variants */
.pill-ok{border-color:rgba(47,191,113,.3);color:var(--ok);background:rgba(47,191,113,.10)}

/* overall status card */
.tk-status-card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px}
.tk-big-status{display:flex;align-items:flex-start;gap:16px;margin-bottom:20px;
  padding-bottom:20px;border-bottom:1px solid var(--line)}
.tk-status-dot{width:16px;height:16px;border-radius:50%;flex-shrink:0;margin-top:3px}
.tk-dot-ok{background:var(--ok);box-shadow:0 0 0 4px rgba(47,191,113,.18)}
.tk-dot-warn{background:var(--watch);box-shadow:0 0 0 4px rgba(255,176,32,.18)}
.tk-status-title{font-family:var(--f-display);font-weight:700;font-size:1.1rem;margin-bottom:4px}
.tk-status-sub{font-size:.88rem;color:var(--muted)}
.tk-meta-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.tk-meta{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:10px 14px}
.tk-meta span{display:block;font-size:.72rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  color:var(--faint);margin-bottom:3px}
.tk-meta b{font-size:.88rem;color:var(--text)}

/* grouped checklist */
.tk-group{margin-bottom:20px}
.tk-group:last-child{margin-bottom:0}
.tk-group-title{font-family:var(--f-display);font-size:.78rem;font-weight:700;letter-spacing:.09em;
  text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.tk-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.tk-list li{display:flex;align-items:flex-start;gap:10px;background:var(--surface-2);
  border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-size:.9rem;
  line-height:1.5;color:var(--muted)}
.tk-list li code{font-family:var(--f-mono);font-size:.82em;background:var(--bg);
  border:1px solid var(--line);border-radius:5px;padding:.1em .4em;color:var(--text)}

/* hardware note */
.tk-hw-note{background:var(--surface-2);border:1px solid rgba(255,176,32,.25);
  border-left:4px solid var(--accent);border-radius:var(--r);padding:18px 20px;margin-bottom:24px}
.tk-hw-note p{color:var(--muted);margin:0 0 8px;font-size:.92rem}
.tk-hw-note p:last-child{margin-bottom:0}
.tk-hw-note b{color:var(--text)}
.tk-hw-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:14px;
  font-family:var(--f-mono);font-size:.72rem;font-weight:700;letter-spacing:.04em;
  background:rgba(139,108,255,.12);color:var(--accent-3);border:1px solid rgba(139,108,255,.2)}
.tk-hw-pending{margin-top:24px}

/* demo walk-through */
.tk-demo-steps{display:flex;flex-direction:column;gap:10px}
.tk-step{display:flex;align-items:flex-start;gap:14px;background:var(--surface-2);
  border:1px solid var(--line);border-radius:12px;padding:14px 18px}
.tk-step-num{width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--bg);
  font-family:var(--f-display);font-weight:700;font-size:.85rem;display:grid;place-items:center;
  flex-shrink:0;margin-top:1px}
.tk-step div{font-size:.92rem;color:var(--muted);line-height:1.55}
.tk-step div b{color:var(--text)}
.tk-step div code{font-family:var(--f-mono);font-size:.82em;background:var(--bg);
  border:1px solid var(--line);border-radius:5px;padding:.1em .4em;color:var(--text)}

/* two-column card grid */
.cards-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.tk-card-label{margin-bottom:10px;display:inline-flex}

/* responsive */
@media (max-width:680px){
  .cards-2,.tk-meta-row{grid-template-columns:1fr}
  .tracker-status-pills,.tracker-back{flex-direction:column;align-items:flex-start}
}
[data-theme="light"] .tk-meta{background:var(--surface)}
[data-theme="light"] .tk-hw-note{background:rgba(255,176,32,.04)}

/* demo recording row */
.tk-demo-rec{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}
.tk-demo-rec-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:8px}
.tk-demo-rec-note{font-size:.8rem;color:var(--faint)}

/* ============================================================
   VISUAL POLISH
   ============================================================ */
/* docs h3 hierarchy — less amber, cleaner structure */
.docs-content h3{color:var(--text)}
/* stat cards get a gentle hover lift */
.stat{transition:border-color .22s,transform .22s,box-shadow .22s;cursor:default}
.stat:hover{border-color:rgba(255,176,32,.28);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
/* slightly tighter hero title */
.hero-title{letter-spacing:-.025em}
/* card hover: accent glow instead of just border change */
.card:hover{border-color:rgba(255,176,32,.3);box-shadow:0 8px 32px rgba(0,0,0,.3),0 0 0 1px rgba(255,176,32,.08)}
/* cleaner section eyebrow on non-hero sections */
.section .eyebrow,.tracker-hero .eyebrow,.deck-hero .eyebrow{letter-spacing:.1em}

/* ============================================================
   PITCH DECK
   ============================================================ */
.deck{min-height:100vh}
.deck-hero{padding:64px 0 44px;background:var(--surface-2);border-bottom:1px solid var(--line);text-align:center}
.deck-hero .eyebrow{margin-bottom:14px;display:block}
.deck-hero h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:14px}
.deck-hero .lead{color:var(--muted);max-width:680px;margin:0 auto 28px}
.deck-nav-pills{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

/* individual slides */
.deck-slide{padding:72px 0;border-bottom:1px solid var(--line)}
.deck-slide:last-child{border-bottom:none}
.deck-slide-alt{background:var(--surface)}
.deck-slide-inner{display:grid;grid-template-columns:88px 1fr;gap:32px;align-items:start}
.deck-slide-num{font-family:var(--f-display);font-size:3.8rem;font-weight:700;
  color:var(--line);letter-spacing:-.03em;line-height:1;padding-top:4px;
  user-select:none;transition:color .3s}
.deck-slide:hover .deck-slide-num{color:rgba(255,176,32,.18)}
.deck-h2{font-size:clamp(1.45rem,2.6vw,2rem);margin-bottom:16px;line-height:1.22;letter-spacing:-.015em}
.deck-body{color:var(--muted);font-size:1.02rem;max-width:720px;margin-bottom:26px;line-height:1.65}

/* problem cards (3-col) */
.deck-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.deck-card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r);padding:18px 16px}
.deck-slide-alt .deck-card{background:var(--bg)}
.deck-card-label{font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--accent);margin-bottom:8px}
.deck-card p{font-size:.88rem;color:var(--muted);margin:0;line-height:1.55}

/* industry grid (3+2) */
.deck-industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.deck-ind-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);
  padding:16px;display:flex;flex-direction:column;gap:5px}
.deck-slide-alt .deck-ind-card{background:var(--surface-2)}
.deck-ind-tag{font-size:.66rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--accent-2)}
.deck-ind-card b{font-family:var(--f-display);font-size:.94rem;color:var(--text)}
.deck-ind-card p{font-size:.83rem;color:var(--muted);margin:0;flex:1;line-height:1.5}
.deck-ind-card a{font-size:.78rem;font-weight:600;color:var(--accent-2);
  text-decoration:underline;text-underline-offset:2px;transition:.15s;margin-top:6px}
.deck-ind-card a:hover{color:var(--accent)}

/* gap quote + columns */
.deck-quote{margin:0 0 26px;padding:18px 22px;border-left:4px solid var(--accent);
  background:var(--surface-2);border-radius:0 var(--r) var(--r) 0;
  font-family:var(--f-display);font-size:1.02rem;color:var(--text);font-style:normal;line-height:1.55}
.deck-gap-cols{display:flex;flex-direction:column;gap:12px}
.deck-gap-item{display:flex;gap:14px;align-items:flex-start;background:var(--surface-2);
  border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.deck-gap-num{width:30px;height:30px;border-radius:50%;background:rgba(255,176,32,.12);
  color:var(--accent);font-family:var(--f-display);font-weight:700;font-size:.88rem;
  display:grid;place-items:center;flex-shrink:0;border:1px solid rgba(255,176,32,.22)}
.deck-gap-item b{display:block;font-family:var(--f-display);font-size:.95rem;margin-bottom:4px;color:var(--text)}
.deck-gap-item p{font-size:.88rem;color:var(--muted);margin:0;line-height:1.5}

/* approach pillars (2x2) */
.deck-pillars{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.deck-pillar{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.deck-slide-alt .deck-pillar{background:var(--surface-2)}
.deck-pillar-ic{font-family:var(--f-mono);font-size:.7rem;font-weight:700;color:var(--accent);
  background:rgba(255,176,32,.10);border:1px solid rgba(255,176,32,.2);border-radius:6px;
  display:inline-block;padding:.2em .55em;margin-bottom:10px;letter-spacing:.03em}
.deck-pillar h3{font-size:1rem;margin-bottom:.4em;color:var(--text)}
.deck-pillar p{font-size:.88rem;color:var(--muted);margin:0;line-height:1.55}

/* comparison two-column */
.deck-compare{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.deck-compare-col{border:1px solid var(--line);border-radius:var(--r);padding:20px}
.deck-compare-old{background:var(--surface-2)}
.deck-compare-new{border-color:rgba(47,191,113,.28);background:rgba(47,191,113,.06)}
.deck-compare-head{font-family:var(--f-display);font-weight:700;margin-bottom:14px;font-size:.98rem}
.deck-compare-old .deck-compare-head{color:var(--muted)}
.deck-compare-new .deck-compare-head{color:var(--ok)}
.deck-compare-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px}
.deck-compare-list li{font-size:.88rem;color:var(--muted);padding-left:20px;position:relative;line-height:1.45}
.deck-compare-list li::before{content:"–";position:absolute;left:0;color:var(--faint)}
.deck-compare-new .deck-compare-list li::before{content:"✓";color:var(--ok)}
.deck-compare-new .deck-compare-list li{color:var(--text)}
.deck-compare-new .deck-compare-list li b{color:var(--ok)}

/* poc items grid */
.deck-poc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:22px}
.deck-poc-item{display:flex;align-items:center;gap:10px;background:var(--bg);border:1px solid var(--line);
  border-radius:10px;padding:12px 14px;font-size:.88rem;color:var(--muted);line-height:1.45}
.deck-slide-alt .deck-poc-item{background:var(--surface-2)}
.deck-poc-cta{display:flex;gap:12px;flex-wrap:wrap}

/* hardware phase cards */
.deck-hw-phases{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.deck-hw-phase{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.deck-slide .deck-hw-phase{background:var(--surface-2)}
.deck-phase-head{margin-bottom:14px}
.deck-hw-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px}
.deck-hw-list li{font-size:.88rem;color:var(--muted);padding-left:20px;position:relative;line-height:1.45}
.deck-hw-list li::before{content:"→";position:absolute;left:0;color:var(--accent-3);font-size:.82em}

/* hardware comparison table */
.deck-hw-table{border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.deck-hw-table-head{display:grid;grid-template-columns:1fr 1fr;background:var(--surface-2);
  padding:11px 16px;font-family:var(--f-display);font-size:.78rem;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;color:var(--faint);border-bottom:1px solid var(--line)}
.deck-hw-row{display:grid;grid-template-columns:1fr 1fr;padding:11px 16px;
  border-bottom:1px solid var(--line-2);font-size:.88rem}
.deck-hw-row:last-child{border-bottom:none}
.deck-hw-row span:first-child{color:var(--muted)}
.deck-hw-row span:last-child{color:var(--text);font-weight:500}
.deck-slide-alt .deck-hw-table{background:var(--bg)}
.deck-slide-alt .deck-hw-table-head{background:var(--surface-2)}

/* final CTA slide */
.deck-cta-slide{background:var(--grad-soft)}
.deck-final-ctas{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.deck-footer-note{font-size:.9rem;color:var(--muted);margin:0;max-width:540px;line-height:1.55}
.deck-footer-note code{font-family:var(--f-mono);font-size:.85em;background:var(--surface-2);
  border:1px solid var(--line);border-radius:5px;padding:.1em .4em}

/* deck responsive */
@media (max-width:980px){
  .deck-slide-inner{grid-template-columns:1fr;gap:20px}
  .deck-slide-num{font-size:2.4rem;padding-top:0}
  .deck-industry-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .deck-slide{padding:48px 0}
  .deck-cards,.deck-pillars,.deck-compare,.deck-poc-grid,.deck-hw-phases{grid-template-columns:1fr}
  .deck-industry-grid{grid-template-columns:1fr}
  .deck-slide-num{display:none}
  .deck-hw-table-head,.deck-hw-row{grid-template-columns:1fr}
  .deck-hw-table-head span:last-child,.deck-hw-row span:last-child{display:none}
}
[data-theme="light"] .deck-gap-item{background:var(--surface)}
[data-theme="light"] .deck-hw-phase{background:var(--surface)}
[data-theme="light"] .deck-compare-old{background:var(--surface)}
[data-theme="light"] .deck-ind-card{background:var(--surface)}

/* ============================================================
   DECK MODE — hides navbar for full-screen presentation
   ============================================================ */
.deck-mode .navbar{display:none}
.deck-mode #main{padding-top:0}

/* ============================================================
   PITCH DECK v2 — Presentation Stage (.ds-*)
   Always dark regardless of site theme
   ============================================================ */
.ds-wrap{min-height:100vh;display:flex;flex-direction:column;background:#0b1018;color:#eef2f7;position:relative}

/* progress rail */
.ds-progress-rail{position:fixed;top:0;left:0;right:0;height:3px;background:rgba(255,255,255,.06);z-index:200}
.ds-progress-bar{height:100%;background:linear-gradient(90deg,#f6a623 0%,#36d6e7 100%);transform-origin:left;transform:scaleX(0);transition:transform .4s cubic-bezier(.4,0,.2,1)}

/* top chrome */
.ds-chrome{position:fixed;top:0;left:0;right:0;height:52px;display:flex;align-items:center;
  justify-content:space-between;padding:0 28px;background:rgba(11,16,24,.9);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06);z-index:150;gap:16px}
.ds-logo{font-family:var(--f-display);font-weight:700;font-size:1.05rem;color:#eef2f7;display:flex;align-items:center;gap:7px}
.ds-logo-amber{color:#f6a623}
.ds-counter-txt{font-family:var(--f-mono);font-size:.8rem;color:rgba(238,242,247,.35);white-space:nowrap}
.ds-chrome-btns{display:flex;align-items:center;gap:8px}
.ds-btn-sm{font-family:var(--f-body);font-weight:600;font-size:.8rem;padding:.4em .9em;border-radius:7px;
  border:1px solid rgba(255,255,255,.14);background:transparent;color:rgba(238,242,247,.65);cursor:pointer;
  transition:.18s;text-decoration:none;display:inline-flex;align-items:center;gap:5px}
.ds-btn-sm:hover{border-color:#f6a623;color:#f6a623}

/* slide container */
.ds-slides{flex:1;position:relative;padding-top:52px;padding-bottom:56px}
.ds-slide{position:absolute;inset:0;top:52px;bottom:56px;overflow-y:auto;
  opacity:0;pointer-events:none;transform:translateY(14px);
  transition:opacity .32s ease,transform .32s ease}
.ds-slide.ds-active{opacity:1;pointer-events:auto;transform:none}
.ds-inner{max-width:960px;margin:0 auto;padding:clamp(28px,6vh,68px) clamp(20px,4vw,44px)}
.ds-inner-wide{max-width:1100px;margin:0 auto;padding:clamp(24px,5vh,60px) clamp(20px,4vw,44px)}

/* bottom nav bar */
.ds-nav-bar{position:fixed;bottom:0;left:0;right:0;height:56px;display:flex;align-items:center;
  justify-content:space-between;padding:0 28px;background:rgba(11,16,24,.92);
  border-top:1px solid rgba(255,255,255,.06);z-index:150}
.ds-nav-btn{font-family:var(--f-display);font-weight:600;font-size:.86rem;padding:.48em 1.2em;border-radius:8px;
  border:1px solid rgba(255,255,255,.12);background:transparent;color:rgba(238,242,247,.65);cursor:pointer;transition:.18s}
.ds-nav-btn:hover:not(:disabled){border-color:#f6a623;color:#f6a623}
.ds-nav-btn:disabled{opacity:.22;cursor:not-allowed}
.ds-hint{font-family:var(--f-mono);font-size:.68rem;color:rgba(238,242,247,.2);text-align:center}

/* entrance animation atoms */
.ds-anim{opacity:0;transform:translateY(18px);transition:opacity .45s ease,transform .45s ease}
.ds-anim.ds-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.ds-anim{opacity:1;transform:none;transition:none}}

/* ---- typography ---- */
.ds-kicker{font-family:var(--f-mono);font-size:.72rem;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:#f6a623;margin-bottom:14px}
.ds-h1{font-size:clamp(1.9rem,4.2vw,3.1rem);font-weight:700;letter-spacing:-.025em;line-height:1.12;
  margin:0 0 .5em;color:#eef2f7;font-family:var(--f-display)}
.ds-h2{font-size:clamp(1.45rem,2.8vw,2.1rem);font-weight:700;letter-spacing:-.02em;line-height:1.18;
  margin:0 0 .5em;color:#eef2f7;font-family:var(--f-display)}
.ds-body{color:#9aa7b6;font-size:.98rem;line-height:1.65;max-width:720px;margin-bottom:22px}
.ds-amber{color:#f6a623}
.ds-ok-text{color:#3ecf8e}
.ds-alert-text{color:#ef5d60}

/* title slide hero */
.ds-title-brand{font-size:clamp(3.2rem,7.5vw,5.8rem);font-weight:700;letter-spacing:-.04em;line-height:1;
  margin:0 0 .2em;font-family:var(--f-display);color:#eef2f7}
.ds-tagline{font-size:clamp(1rem,2vw,1.4rem);color:#9aa7b6;margin:0 0 1.2em;font-weight:400}

/* chips / status pills */
.ds-chips{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 22px}
.ds-chip{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:600;letter-spacing:.02em;
  padding:.38em .95em;border-radius:999px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.05);color:#9aa7b6}
.ds-chip::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.55}
.ds-chip-ok{color:#3ecf8e;border-color:rgba(62,207,142,.28);background:rgba(62,207,142,.08)}
.ds-chip-info{color:#62a8f0;border-color:rgba(98,168,240,.28);background:rgba(98,168,240,.08)}
.ds-chip-amber{color:#f6a623;border-color:rgba(246,166,35,.28);background:rgba(246,166,35,.08)}
.ds-chip-alert{color:#ef5d60;border-color:rgba(239,93,96,.28);background:rgba(239,93,96,.08)}

/* grid layouts */
.ds-g2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.ds-g3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.ds-g4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.ds-g2-wide{display:grid;grid-template-columns:1.4fr 1fr;gap:20px;align-items:start}
.ds-g5{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}

/* cards */
.ds-card{background:#151c25;border:1px solid #28323e;border-radius:12px;padding:20px}
.ds-card-tag{font-family:var(--f-mono);font-size:.66rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:#62a8f0;margin-bottom:8px}
.ds-card h3{font-size:.98rem;color:#eef2f7;margin:0 0 .4em;font-family:var(--f-display);font-weight:600}
.ds-card p{font-size:.86rem;color:#9aa7b6;margin:0;line-height:1.55}
.ds-card-amber{border-color:rgba(246,166,35,.28);background:linear-gradient(160deg,rgba(246,166,35,.09),#151c25 60%)}
.ds-card-ok{border-color:rgba(62,207,142,.22);background:rgba(62,207,142,.05)}
.ds-card-alert{border-color:rgba(239,93,96,.22);background:rgba(239,93,96,.04)}
.ds-card-info{border-color:rgba(98,168,240,.22);background:rgba(98,168,240,.04)}
.ds-card-num{font-family:var(--f-mono);font-size:.68rem;font-weight:700;color:#f6a623;
  background:rgba(246,166,35,.12);border:1px solid rgba(246,166,35,.2);border-radius:5px;
  padding:.15em .5em;display:inline-block;margin-bottom:10px;letter-spacing:.04em}
.ds-card ul{list-style:none;padding:0;margin:8px 0 0;display:flex;flex-direction:column;gap:5px}
.ds-card li{font-size:.83rem;color:#9aa7b6;padding-left:18px;position:relative;line-height:1.45}
.ds-card li::before{content:"→";position:absolute;left:0;color:#f6a623;font-size:.78em}

/* solution steps */
.ds-step-num{width:36px;height:36px;border-radius:50%;background:rgba(246,166,35,.12);
  border:1px solid rgba(246,166,35,.25);color:#f6a623;font-family:var(--f-display);font-weight:700;
  font-size:.9rem;display:grid;place-items:center;margin-bottom:12px;flex-shrink:0}

/* architecture flow */
.ds-flow{display:flex;align-items:stretch;gap:0;overflow-x:auto;
  background:#0d1520;border:1px solid #1e2a38;border-radius:12px;padding:20px}
.ds-flow-node{background:#151c25;border:1px solid #28323e;border-radius:10px;padding:14px 16px;
  min-width:130px;flex-shrink:0;display:flex;flex-direction:column;gap:4px}
.ds-flow-node-label{font-family:var(--f-mono);font-size:.66rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:#f6a623;margin-bottom:6px}
.ds-flow-node-title{font-family:var(--f-display);font-weight:600;font-size:.88rem;color:#eef2f7;margin-bottom:4px}
.ds-flow-node-sub{font-size:.74rem;color:#9aa7b6;line-height:1.4}
.ds-flow-node-items{display:flex;flex-direction:column;gap:3px;margin-top:6px}
.ds-flow-node-item{font-size:.72rem;color:rgba(154,167,182,.7);padding-left:12px;position:relative;line-height:1.35}
.ds-flow-node-item::before{content:"·";position:absolute;left:0;color:#f6a623}
.ds-flow-conn{display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:0 6px;gap:4px;min-width:50px;flex-shrink:0}
.ds-flow-arrow{color:#f6a623;font-size:1.1rem;opacity:.8}
.ds-flow-conn-label{font-family:var(--f-mono);font-size:.62rem;color:rgba(154,167,182,.4);text-align:center;line-height:1.3}

/* JSON block */
.ds-json{background:#06090f;border:1px solid #1e2a38;border-radius:10px;padding:14px 16px;
  font-family:var(--f-mono);font-size:.76rem;color:#d6e1f0;line-height:1.65;overflow-x:auto;margin:14px 0}

/* table */
.ds-tbl{width:100%;border-collapse:collapse;margin:12px 0;font-size:.87rem}
.ds-tbl th{text-align:left;padding:9px 12px;font-family:var(--f-mono);font-size:.68rem;
  letter-spacing:.08em;text-transform:uppercase;color:rgba(154,167,182,.5);
  border-bottom:1px solid #28323e;font-weight:600;white-space:nowrap}
.ds-tbl td{padding:10px 12px;border-bottom:1px solid rgba(40,50,62,.6);color:#9aa7b6;line-height:1.45;vertical-align:top}
.ds-tbl tr:last-child td{border-bottom:none}
.ds-tbl td b,.ds-tbl td strong{color:#eef2f7;font-weight:600}
.ds-tbl-done td:first-child{color:#3ecf8e}
.ds-tbl-progress td:first-child{color:#f6a623}
.ds-tbl-no td:first-child{color:rgba(154,167,182,.4)}

/* zone demo cards (title slide + demo slide) */
.ds-zones-demo{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.ds-zdemo{background:#1a222c;border:1px solid #28323e;border-top:3px solid;border-radius:10px;padding:12px}
.ds-zdemo.z-ok{border-top-color:#3ecf8e}
.ds-zdemo.z-watch{border-top-color:#f6a623}
.ds-zdemo.z-alert{border-top-color:#ef5d60}
.ds-zdemo-name{font-family:var(--f-display);font-weight:700;font-size:.85rem;color:#eef2f7;margin-bottom:3px}
.ds-zdemo-status{font-size:.68rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase}
.z-ok .ds-zdemo-status{color:#3ecf8e}
.z-watch .ds-zdemo-status{color:#f6a623}
.z-alert .ds-zdemo-status{color:#ef5d60}
.ds-zdemo-metrics{font-family:var(--f-mono);font-size:.68rem;color:rgba(154,167,182,.55);margin-top:6px;display:flex;flex-direction:column;gap:2px}

/* demo screen frame */
.ds-screen-frame{background:#0d1520;border:1px solid #28323e;border-radius:12px;padding:14px;margin-top:18px}
.ds-screen-topbar{display:flex;align-items:center;gap:8px;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid #1e2a38}
.ds-screen-title{font-family:var(--f-display);font-weight:700;font-size:.88rem;color:#eef2f7}
.ds-screen-dot{width:8px;height:8px;border-radius:50%;background:#3ecf8e;box-shadow:0 0 0 3px rgba(62,207,142,.2)}

/* quote / highlight blocks */
.ds-quote{margin:0 0 20px;padding:16px 22px;border-left:3px solid #f6a623;background:#151c25;
  border-radius:0 10px 10px 0;font-family:var(--f-display);font-size:1rem;color:#eef2f7;line-height:1.55}
.ds-highlight{background:linear-gradient(135deg,rgba(246,166,35,.10),rgba(98,168,240,.06));
  border:1px solid rgba(246,166,35,.22);border-radius:12px;padding:20px 22px;margin:14px 0}
.ds-highlight-label{font-family:var(--f-mono);font-size:.68rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:#f6a623;margin-bottom:8px}
.ds-highlight p{font-size:.88rem;color:#9aa7b6;margin:0;line-height:1.55}

/* Q&A */
.ds-qa-card{background:#151c25;border:1px solid #28323e;border-radius:12px;padding:18px}
.ds-qa-q{font-family:var(--f-display);font-weight:600;font-size:.93rem;color:#f6a623;margin-bottom:8px;line-height:1.35}
.ds-qa-a{font-size:.85rem;color:#9aa7b6;line-height:1.55;margin:0}

/* glossary */
.ds-gloss{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ds-gloss-item{background:#151c25;border:1px solid #28323e;border-radius:10px;padding:14px}
.ds-gloss-term{font-family:var(--f-mono);font-size:.79rem;font-weight:700;color:#f6a623;margin-bottom:4px}
.ds-gloss-def{font-size:.82rem;color:#9aa7b6;margin:0;line-height:1.5}

/* divider slide */
.ds-divider-slide{display:flex;align-items:center;justify-content:center;min-height:100%;
  background:linear-gradient(135deg,rgba(246,166,35,.07),rgba(54,214,231,.05))}

/* appendix label */
.ds-appendix-label{font-family:var(--f-mono);font-size:.68rem;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:rgba(154,167,182,.4);border:1px solid rgba(255,255,255,.06);
  border-radius:5px;padding:.2em .6em;display:inline-block;margin-bottom:12px}

/* responsive */
@media (max-width:900px){
  .ds-chrome{padding:0 16px}
  .ds-nav-bar{padding:0 16px}
  .ds-g3{grid-template-columns:1fr 1fr}
  .ds-g4{grid-template-columns:repeat(2,1fr)}
  .ds-g5{grid-template-columns:repeat(2,1fr)}
  .ds-zones-demo{grid-template-columns:repeat(2,1fr)}
  .ds-flow{flex-direction:column}
  .ds-flow-conn{flex-direction:row;padding:4px 0}
  .ds-flow-arrow{transform:rotate(90deg)}
  .ds-gloss{grid-template-columns:1fr}
}
@media (max-width:560px){
  .ds-g2,.ds-g2-wide,.ds-g3{grid-template-columns:1fr}
  .ds-g4{grid-template-columns:1fr}
  .ds-title-brand{font-size:clamp(2.4rem,12vw,4rem)}
  .ds-hint{display:none}
}

/* ============================================================
   HOW IT WORKS SECTION (.hiw-*)
   ============================================================ */
.hiw-section{padding:clamp(56px,8vw,104px) 0;background:var(--surface)}

/* persona cards */
.hiw-personas{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:40px}
.hiw-persona{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;position:relative;overflow:hidden}
.hiw-persona::before{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;opacity:.12}
.hiw-persona-ug::before{background:radial-gradient(70% 50% at 100% 0%,var(--accent),transparent)}
.hiw-persona-sf::before{background:radial-gradient(70% 50% at 0% 0%,var(--ok),transparent)}
.hiw-persona > *{position:relative;z-index:1}
.hiw-persona-icon{width:54px;height:54px;border-radius:16px;display:flex;align-items:center;
  justify-content:center;font-size:1.55rem;margin-bottom:14px}
.hiw-persona-ug .hiw-persona-icon{background:rgba(255,176,32,.12);border:1px solid rgba(255,176,32,.2)}
.hiw-persona-sf .hiw-persona-icon{background:rgba(47,191,113,.10);border:1px solid rgba(47,191,113,.16)}
.hiw-persona-role{font-size:.68rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:8px}
.hiw-persona-ug .hiw-persona-role{color:var(--accent)}
.hiw-persona-sf .hiw-persona-role{color:var(--ok)}
.hiw-persona h3{font-size:1.15rem;margin-bottom:.25em;color:var(--text)}
.hiw-persona-where{font-family:var(--f-mono);font-size:.8rem;color:var(--faint);margin-bottom:14px}
.hiw-persona-uses{font-size:.9rem;color:var(--muted);margin-bottom:16px;line-height:1.55}
.hiw-sees{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.hiw-sees li{display:flex;align-items:flex-start;gap:9px;font-size:.88rem;color:var(--muted);
  padding:8px 12px;background:var(--surface);border:1px solid var(--line);border-radius:9px;line-height:1.45}
.hiw-sees li::before{content:"";width:7px;height:7px;border-radius:50%;flex-shrink:0;margin-top:5px}
.hiw-persona-ug .hiw-sees li::before{background:var(--accent)}
.hiw-persona-sf .hiw-sees li::before{background:var(--ok)}

/* 5-step technical flow */
.hiw-flow-wrap{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}
.hiw-flow-head{font-family:var(--f-display);font-size:.78rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--faint);margin-bottom:22px}
.hiw-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;align-items:stretch}
.hiw-flow-step{display:flex;flex-direction:column;align-items:center;text-align:center;
  padding:16px 10px;background:var(--bg);border:1px solid var(--line);border-radius:12px;
  position:relative;transition:border-color .22s}
.hiw-flow-step:hover{border-color:rgba(255,176,32,.3)}
.hiw-flow-step:not(:last-child)::after{content:"→";position:absolute;right:-16px;top:50%;
  transform:translateY(-50%);color:var(--accent);font-size:.9rem;z-index:1;opacity:.6}
.hiw-step-num{width:28px;height:28px;border-radius:50%;background:rgba(255,176,32,.14);
  border:1px solid rgba(255,176,32,.28);font-family:var(--f-display);font-weight:700;
  font-size:.82rem;color:var(--accent);display:grid;place-items:center;margin-bottom:10px;flex-shrink:0}
.hiw-step-icon{font-size:1.25rem;margin-bottom:8px}
.hiw-step-title{font-family:var(--f-display);font-weight:700;font-size:.9rem;color:var(--text);margin-bottom:5px}
.hiw-step-sub{font-size:.78rem;color:var(--muted);line-height:1.45;margin-bottom:10px}
.hiw-step-tags{display:flex;flex-direction:column;gap:4px;width:100%}
.hiw-tag{font-size:.65rem;font-weight:600;letter-spacing:.03em;padding:.18em .55em;
  border-radius:5px;display:inline-block;text-align:center}
.hiw-tag-hw{background:rgba(255,176,32,.12);color:var(--accent);border:1px solid rgba(255,176,32,.18)}
.hiw-tag-sw{background:rgba(139,108,255,.10);color:var(--accent-3);border:1px solid rgba(139,108,255,.16)}
.hiw-tag-ai{background:rgba(54,214,231,.10);color:var(--accent-2);border:1px solid rgba(54,214,231,.16)}
.hiw-tag-sim{background:rgba(245,166,35,.10);color:var(--watch);border:1px solid rgba(245,166,35,.18)}
.hiw-tag-ui{background:rgba(47,191,113,.10);color:var(--ok);border:1px solid rgba(47,191,113,.16)}

/* clarify note */
.hiw-clarify{margin-top:20px;padding:14px 18px;background:var(--grad-soft);border:1px solid rgba(255,176,32,.14);
  border-radius:var(--r);font-size:.88rem;color:var(--muted);line-height:1.6}
.hiw-clarify b{color:var(--text)}

/* responsive */
@media (max-width:980px){
  .hiw-personas{grid-template-columns:1fr}
  .hiw-flow{grid-template-columns:repeat(2,1fr)}
  .hiw-flow-step:not(:last-child)::after{display:none}
}
@media (max-width:680px){
  .hiw-flow{grid-template-columns:1fr}
}
[data-theme="light"] .hiw-persona{background:var(--surface-2)}
[data-theme="light"] .hiw-sees li{background:var(--surface)}
[data-theme="light"] .hiw-flow-step{background:var(--surface)}

/* ── Hardware POC view (.hw-*) ─────────────────────────────────────────── */
.hw-conn-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:20px}
.hw-dot{width:10px;height:10px;border-radius:50%;background:var(--faint);
  display:inline-block;margin-right:6px;transition:background .3s}
.hw-dot.hw-dot-on{background:var(--ok);box-shadow:0 0 0 3px rgba(47,191,113,.25)}
.hw-src-badge{font-size:.7rem;font-weight:700;letter-spacing:.05em;background:rgba(54,214,231,.12);
  color:var(--accent-2);border:1px solid rgba(54,214,231,.3);padding:.25em .65em;border-radius:20px}
.hw-big{font-size:clamp(3rem,8vw,5rem);font-weight:700;line-height:1;font-family:var(--f-display)}
.hw-gauge{height:14px;background:var(--bg);border:1px solid var(--line);border-radius:8px;
  overflow:hidden;margin-top:16px}
.hw-gauge>div{height:100%;width:0%;background:var(--ok);transition:width .25s ease,background .25s ease}
.hw-status-row{display:flex;align-items:center;gap:12px;margin-top:16px}
.hw-light{width:22px;height:22px;border-radius:50%;background:var(--faint);
  transition:background .3s,box-shadow .3s;flex-shrink:0}
.hw-status-text{font-size:2rem;font-weight:700;font-family:var(--f-display);transition:color .3s}
.hw-fan{width:110px;height:110px;animation:hw-spin 2s linear infinite}
@keyframes hw-spin{to{transform:rotate(360deg)}}
.hw-conn-text{color:var(--muted);font-size:.875rem}
@media(prefers-reduced-motion:reduce){.hw-fan{animation:none}}