:root{--ink:#f5f3ff;--muted:#a7a4b4;--panel:#0d0c14;--line:#282239;--purple:#8b5cf6;--purple2:#b88cff;--lime:#c9ff38;--black:#050508}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--black);color:var(--ink);font-family:Geist,Arial,sans-serif}body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.18;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:36px 36px;mask-image:linear-gradient(to bottom,#000,transparent 85%)}button,textarea{font:inherit}.twin-shell{position:relative;min-height:100vh;max-width:1440px;margin:auto;padding:clamp(28px,5vw,76px);display:grid;grid-template-columns:.82fr 1.18fr;gap:8%;align-items:center}.twin-intro{position:relative}.twin-intro:after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(139,92,246,.18),transparent 67%);inset:50% auto auto 30%;transform:translate(-50%,-50%);z-index:-1}.eyebrow{color:#c7c2d0;text-transform:uppercase;letter-spacing:.15em;font-size:11px;font-weight:700;display:flex;align-items:center;gap:10px}.eyebrow span{width:22px;height:1px;background:var(--lime);box-shadow:0 0 10px var(--lime)}h1{font-size:clamp(50px,5.4vw,82px);line-height:.94;letter-spacing:-.063em;margin:24px 0;font-weight:650}h1 em{display:block;color:var(--purple2);font-style:normal;text-shadow:0 0 30px rgba(139,92,246,.23)}.twin-intro>p:not(.eyebrow){color:var(--muted);font-size:18px;line-height:1.7;max-width:550px}.signals{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}.signals span,.signals b{border:1px solid #373041;border-radius:8px;padding:10px 12px;font-size:12px}.signals span{color:var(--lime)}.signals b{color:#bbb6c6;font-weight:500}.chat-card{height:min(760px,88vh);min-height:590px;display:grid;grid-template-rows:auto 1fr auto auto auto;overflow:hidden;border:1px solid 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#373041;border-radius:8px;background:#0a090e;color:#aaa4b4;width:36px;height:36px;cursor:pointer}.messages{padding:22px;overflow-y:auto;display:flex;flex-direction:column;gap:13px;scrollbar-color:#493663 transparent}.message{max-width:84%;padding:13px 15px;border-radius:13px;font-size:14px;line-height:1.55;white-space:pre-wrap}.message.assistant{align-self:flex-start;color:#ded9e8;border:1px solid #352a44;background:#12101a;border-bottom-left-radius:4px}.message.user{align-self:flex-end;background:linear-gradient(120deg,#5530dd,#8258e9);border-bottom-right-radius:4px}.message.error{color:#ffd4d4;border-color:#6f3535}.typing{display:flex;gap:5px;width:max-content}.typing i{width:6px;height:6px;border-radius:50%;background:#b88cff;animation:blink 1s infinite alternate}.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}@keyframes blink{to{opacity:.25;transform:translateY(-2px)}}.suggestions{padding:8px 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13px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:900px){.twin-shell{grid-template-columns:1fr;padding:36px 20px;gap:36px}.twin-intro{text-align:center}.eyebrow,.signals{justify-content:center}.twin-intro>p:not(.eyebrow){margin-left:auto;margin-right:auto}.chat-card{height:720px;max-height:76vh}}@media(max-width:520px){.twin-shell{padding:24px 12px}.twin-intro{display:none}.chat-card{height:calc(100vh - 48px);max-height:none;min-height:520px;border-radius:14px}.message{max-width:92%}.suggestions{padding-left:12px}.chat-card header{padding:12px 14px}form{margin-left:12px;margin-right:12px}}