/* Epoch-in-a-Box — design system (lean rebuild) */
:root{
  --cream:#f4f0e7; --paper:#fbf9f3; --card:#ffffff;
  --ink:#1b1712; --ink-2:#4a4239; --ink-3:#8a8175; --line:#e6dfd1; --line-2:#d8cfbd;
  --purple:#6a3df0; --purple-2:#5a2fd8; --purple-soft:#efeaff;
  --green:#1a7f4b; --green-soft:#e6f3ec; --amber:#c0791a; --red:#c0392b;
  --serif:'Newsreader',Georgia,'Times New Roman',serif;
  --mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,monospace;
  --maxw:1180px; --radius:14px; --radius-sm:10px;
  --shadow:0 1px 2px rgba(27,23,18,.04),0 8px 30px rgba(27,23,18,.06);
  --shadow-lg:0 2px 6px rgba(27,23,18,.06),0 24px 60px rgba(27,23,18,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--serif);background:var(--cream);color:var(--ink);line-height:1.6;font-size:17px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:var(--mono)}
.eyebrow{font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.eyebrow .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--green);margin-right:7px;vertical-align:1px}
.accent{color:var(--purple)}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.08;letter-spacing:-.01em}
h1{font-size:clamp(44px,6.4vw,82px)}
h2{font-size:clamp(30px,3.6vw,46px)}
h3{font-size:22px;line-height:1.2}
p{color:var(--ink-2)}
.serif-it{font-style:italic;color:var(--purple)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:13px;font-weight:600;
  letter-spacing:.04em;text-transform:uppercase;padding:13px 22px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,background .2s ease;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--purple);color:#fff;box-shadow:0 6px 18px rgba(106,61,240,.28)}
.btn-primary:hover{background:var(--purple-2);box-shadow:0 10px 26px rgba(106,61,240,.36)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(27,23,18,.03)}
.btn-dark{background:var(--ink);color:var(--cream)}
.btn-sm{padding:9px 16px;font-size:12px}

/* top utility bar (operator console strip) */
.opbar{background:var(--ink);color:#d9d2c6;font-family:var(--mono);font-size:11.5px;letter-spacing:.04em}
.opbar .wrap{display:flex;align-items:center;gap:16px;height:38px}
.opbar b{color:#fff;font-weight:600}
.opbar .sp{flex:1}
.opbar .pill{display:inline-flex;align-items:center;gap:6px}
.opbar .live{width:6px;height:6px;border-radius:50%;background:#39d98a;box-shadow:0 0 0 3px rgba(57,217,138,.18)}
.opbar a{opacity:.7}.opbar a:hover{opacity:1}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:rgba(244,240,231,.86);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;gap:28px;height:66px}
.brand{display:flex;align-items:center;gap:11px;font-weight:600;font-size:19px;letter-spacing:-.01em;white-space:nowrap;flex:0 0 auto}
.brand img{width:30px;height:30px;border-radius:7px;flex:0 0 auto}
.nav{display:flex;align-items:center;gap:26px;margin-left:10px}
.nav a{font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-2)}
.nav a:hover{color:var(--purple)}
.head-cta{margin-left:auto;display:flex;align-items:center;gap:12px}

/* hero */
.hero{padding:72px 0 36px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.hero h1{margin:18px 0 22px}
.hero .lede{font-size:19px;max-width:30em;margin-bottom:26px}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.note{font-family:var(--mono);font-size:12px;color:var(--ink-3);margin-top:14px}

/* chat demo panel */
.chat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);overflow:hidden}
.chat-top{display:flex;align-items:center;gap:10px;padding:13px 16px;border-bottom:1px solid var(--line);background:var(--paper)}
.chat-top .ava{width:30px;height:30px;border-radius:8px;background:var(--purple);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:13px;font-weight:700}
.chat-top .who{font-weight:600;font-size:15px}
.chat-top .st{font-family:var(--mono);font-size:10.5px;color:var(--green);letter-spacing:.06em;text-transform:uppercase}
.chat-body{padding:18px 16px;display:flex;flex-direction:column;gap:12px;min-height:260px;background:linear-gradient(180deg,#fff,#fbf9f3)}
.bub{max-width:82%;padding:11px 14px;border-radius:14px;font-size:15px;line-height:1.5}
.bub.them{background:var(--cream);color:var(--ink);border-bottom-left-radius:4px;align-self:flex-start;border:1px solid var(--line)}
.bub.me{background:var(--purple);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}
.chat-input{display:flex;gap:8px;padding:12px 14px;border-top:1px solid var(--line);background:var(--card)}
.chat-input input{flex:1;border:1px solid var(--line-2);border-radius:999px;padding:11px 16px;font-family:var(--serif);font-size:15px;outline:none}
.chat-input input:focus{border-color:var(--purple)}
.chat-send{border:none;background:var(--ink);color:#fff;border-radius:999px;width:40px;height:40px;cursor:pointer;font-size:16px}

/* stat band */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);margin:34px 0;overflow:hidden}
.stat{padding:22px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat .k{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
.stat .v{font-size:30px;font-weight:600;margin-top:4px}
.stat .v small{font-size:15px;color:var(--ink-3)}

/* sections */
.section{padding:74px 0;border-top:1px solid var(--line)}
.section-head{max-width:40rem;margin-bottom:42px}
.section-head h2{margin:14px 0}
.lead{font-size:18px}
.cols-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cols-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .18s ease,box-shadow .2s ease}
.feature:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.feature .ic{width:42px;height:42px;border-radius:11px;background:var(--purple-soft);color:var(--purple);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px}
.feature h3{margin-bottom:8px}
.feature p{font-size:15px}
.step-num{font-family:var(--mono);font-size:12px;color:var(--purple);font-weight:600;letter-spacing:.1em}

/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.price{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;position:relative}
.price.feat{border-color:var(--purple);box-shadow:0 18px 50px rgba(106,61,240,.14)}
.price .tag{position:absolute;top:-12px;left:30px;background:var(--purple);color:#fff;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;padding:5px 11px;border-radius:999px}
.price .pname{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
.price .amt{font-size:46px;font-weight:600;margin:10px 0 2px}
.price .amt small{font-size:16px;color:var(--ink-3);font-weight:400}
.price ul{list-style:none;margin:20px 0 24px;display:flex;flex-direction:column;gap:11px}
.price li{font-size:15px;padding-left:26px;position:relative;color:var(--ink-2)}
.price li::before{content:"✓";position:absolute;left:0;color:var(--green);font-family:var(--mono);font-weight:700}
.price .btn{width:100%;justify-content:center}

/* CTA + footer */
.cta-band{background:var(--ink);color:var(--cream);border-radius:20px;padding:60px;text-align:center;margin:24px 0}
.cta-band h2{color:#fff}.cta-band p{color:#c9c1b4;max-width:36rem;margin:14px auto 28px}
.footer{border-top:1px solid var(--line);padding:48px 0 60px;color:var(--ink-3)}
.footer .wrap{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:center}
.footer .mono{font-size:12px;letter-spacing:.04em}

/* generic page shell (tools/configure/dashboard share) */
.app-bar{background:var(--ink);color:#d9d2c6}
.app-bar .wrap{display:flex;align-items:center;gap:14px;height:46px;font-family:var(--mono);font-size:12px;letter-spacing:.05em}
.app-bar .sp{flex:1}
.app-bar .ok{color:#9b8cff}

@media(max-width:900px){
  body{font-size:16px}
  .nav{display:none}
  .brand{font-size:15px}.brand img{width:24px;height:24px}
  .site-head .wrap{gap:12px}
  .head-cta .btn-ghost{display:none}
  .hero{padding:44px 0 12px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:none}.stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .cols-3,.cols-4,.price-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .cta-band{padding:40px 24px}
  .opbar .hide-sm{display:none}
}