:root{--gold:#e9b94f;--gold-light:#f7d987;--ink:#090a0c;--panel:#121418;--line:rgba(230,189,94,.18);--muted:#9a9995;--apple-font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue",Helvetica,Arial,sans-serif;--serif:var(--apple-font);--sans:var(--apple-font)}*{box-sizing:border-box}html,body{min-height:100%;background:var(--ink);font-family:var(--sans);color:#eee;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{margin:0;background:radial-gradient(circle at 75% 5%,#262014 0,transparent 28%),#0a0b0d}.navbar{height:68px!important;background:rgba(8,9,11,.84);backdrop-filter:blur(16px);border-color:var(--line)!important;position:relative;z-index:20}.navbar-brand{font-family:var(--serif);letter-spacing:.04em;color:var(--gold-light)!important}.brand-dot{display:inline-block;width:10px;height:10px;border:1px solid var(--gold);border-radius:50%;box-shadow:0 0 14px var(--gold)}a{color:var(--gold-light)}.btn-primary,.gold-button{border:0;background:linear-gradient(110deg,#f5d479,#c58c24);color:#15110a;font-weight:600}.btn-primary:hover,.gold-button:hover{background:linear-gradient(110deg,#ffe299,#dba33c);color:#090909;transform:translateY(-1px)}
.gold-hero{min-height:690px;position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:#08090b}.gold-hero__art{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,9,11,.98) 0%,rgba(8,9,11,.9) 29%,rgba(8,9,11,.18) 63%,rgba(8,9,11,.1)),url('images/aitalk-gold-orb.png') center/cover no-repeat;animation:heroReveal 1.4s ease-out both}.gold-grid{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:25% 100%,25% 100%;opacity:.28;mask-image:linear-gradient(to bottom,#000,transparent 88%)}.gold-hero__copy{position:relative;z-index:2;width:min(760px,60vw);padding:76px 0 80px clamp(30px,6vw,96px)}.eyebrow,.voice-heading>span{font-size:11px;font-weight:600;letter-spacing:.28em;color:var(--gold);margin-bottom:22px}.gold-hero h1{font:500 clamp(74px,9vw,138px)/.82 var(--serif);letter-spacing:-.065em;color:#f4f0e8;margin:0 0 36px}.gold-hero h1 em{color:var(--gold-light);font-weight:500}.gold-hero h2{font:500 clamp(23px,2.3vw,34px)/1.35 var(--serif);color:#e9dec3;margin:0 0 20px}.gold-hero__copy>p{max-width:690px;color:#aaa6a0;font-size:16px;line-height:1.75}.hero-actions{display:flex;align-items:center;gap:28px;margin-top:34px}.gold-button{display:inline-flex;align-items:center;justify-content:center;gap:28px;padding:15px 22px;border-radius:999px;text-decoration:none;transition:.2s}.text-link{font-size:13px;color:#aaa;text-underline-offset:5px}.hero-principles{position:absolute;right:4.5vw;bottom:42px;z-index:3;display:grid;gap:9px;color:#c0b7a4;font-size:13px}.hero-principles span::first-letter{color:var(--gold)}.gold-features{background:#eeeae1;color:#282724;padding:0 clamp(16px,5vw,72px);display:grid;grid-template-columns:repeat(3,1fr)}.gold-features article{display:flex;gap:25px;padding:30px 26px 32px;border-right:1px solid #d5ccba;border-top:1px solid #d5ccba}.gold-features article:first-child{border-left:1px solid #d5ccba}.gold-features b{font-size:10px;letter-spacing:.18em;color:#8a5d0e}.gold-features h3{font:600 15px/1.3 var(--sans);margin:0 0 8px}.gold-features p{font-size:12px;line-height:1.55;color:#76716a;margin:0}
.voice-stage{min-height:calc(100vh - 68px);position:relative;overflow:hidden;background:radial-gradient(circle at 50% 44%,rgba(179,124,24,.18),transparent 27%),linear-gradient(rgba(10,11,13,.58),rgba(10,11,13,.72)),url('images/aitalk-gold-orb.png') center/cover;color:#eee}.voice-stage::after{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px);background-size:100% 4px;pointer-events:none}.voice-stage__arc{position:absolute;width:650px;height:650px;border:1px solid rgba(230,181,71,.24);border-radius:50%;right:-250px;top:-430px}.voice-heading{position:absolute;left:clamp(24px,5vw,75px);top:45px;z-index:2}.voice-heading h1{font:500 clamp(32px,4vw,58px)/1 var(--serif);margin:0}.voice-heading h1 em{color:var(--gold-light)}.voice-switch{position:absolute;right:5vw;top:45px;z-index:3;border:1px solid #47443b;padding:5px;border-radius:99px;background:rgba(15,16,18,.65)}.voice-switch span,.voice-switch a{display:inline-block;padding:8px 15px;border-radius:99px;font-size:12px;text-decoration:none;color:#aaa}.voice-switch .active{background:linear-gradient(110deg,#f4d071,#bd8520);color:#17130c}.voice-orb{position:absolute;z-index:3;left:50%;top:47%;transform:translate(-50%,-50%);width:min(42vw,430px);aspect-ratio:1;border-radius:50%;border:0;background:url('images/aitalk-gold-orb.png') 70% 50%/205% no-repeat;box-shadow:0 0 45px rgba(235,181,54,.42),0 0 120px rgba(175,115,13,.25);cursor:pointer;transition:.3s;overflow:hidden}.voice-orb::after{content:'';position:absolute;inset:8%;border:1px solid rgba(255,224,145,.46);border-radius:50%;animation:spin 18s linear infinite}.voice-orb:hover{transform:translate(-50%,-50%) scale(1.025);filter:brightness(1.12)}.voice-orb.listening{animation:goldPulse 1.2s ease-in-out infinite}.voice-status{position:absolute;left:50%;bottom:25px;transform:translateX(-50%);text-align:center;z-index:4;width:min(94%,600px)}.voice-status h2{font:600 12px var(--sans);letter-spacing:.08em}.voice-status h2 i{display:inline-block;width:7px;height:7px;border-radius:50%;background:#a8a8a3;margin-right:8px}.voice-status p{font-size:11px;color:#8d8a83;min-height:20px}.voice-status .gold-button{margin-top:6px;cursor:pointer}
.auth-card{width:min(440px,calc(100% - 32px));margin:8vh auto;padding:32px;border:1px solid var(--line);background:#121316;border-radius:4px}.card{background:#131519;border-color:var(--line)}.action-card{min-height:140px;transition:.25s}.action-card:hover{border-color:var(--gold);transform:translateY(-2px)}.chat-shell{display:grid;grid-template-columns:280px 1fr;height:calc(100vh - 68px)}.chat-sidebar{padding:18px;border-right:1px solid var(--line);overflow:auto}.conversation{display:block;color:#aaa;padding:11px 12px;border-radius:2px;text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation:hover,.conversation.active{background:#211d15;color:var(--gold-light)}.chat-main{display:grid;grid-template-rows:58px 1fr auto;min-width:0}.chat-header{padding:13px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.chat-header select{width:190px}.messages{padding:28px max(20px,10vw);overflow-y:auto}.message{display:flex;margin:18px 0}.message.user{justify-content:flex-end}.bubble{max-width:760px;padding:14px 17px;border-radius:12px;background:#1b1d21}.user .bubble{background:#453615;color:#fff4d5}.message-actions{display:flex;gap:8px;margin:5px 8px}.message-actions button{border:0;background:transparent;color:#777;font-size:11px}.composer{margin:12px auto 22px;width:min(820px,calc(100% - 28px));border:1px solid #3c3526;background:#141518;border-radius:20px;padding:10px;display:flex;gap:8px;align-items:end}.composer textarea{flex:1;background:transparent;border:0;color:#fff;resize:none;padding:8px;outline:0}.composer button{border:0;border-radius:50%;width:40px;height:40px}.send{background:var(--gold);color:#161109}.empty-state{text-align:center;margin-top:15vh;color:#888}.orb{margin:auto;width:72px;height:72px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle,#f8db8b,#ad7618 45%,#111 70%);box-shadow:0 0 40px #b77c2366;color:#17110a}.score-ring{margin:auto;width:150px;height:150px;border-radius:50%;display:grid;place-items:center;font-size:46px;font-weight:700;background:conic-gradient(var(--gold) calc(var(--score,82)*1%),#25231e 0);border:10px solid #181713}.score-ring small{font-size:14px}@keyframes heroReveal{from{opacity:0;transform:scale(1.03)}to{opacity:1;transform:scale(1)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes goldPulse{50%{box-shadow:0 0 75px rgba(246,201,91,.78),0 0 180px rgba(190,125,15,.35)}}
@media(max-width:800px){.gold-hero{min-height:760px}.gold-hero__art{background:linear-gradient(180deg,rgba(8,9,11,.95),rgba(8,9,11,.5)),url('images/aitalk-gold-orb.png') 65% bottom/auto 70% no-repeat}.gold-hero__copy{width:100%;padding:55px 24px}.gold-hero h1{font-size:68px}.hero-principles{display:none}.gold-features{grid-template-columns:1fr}.gold-features article{border-left:1px solid #d5ccba}.chat-shell{grid-template-columns:1fr}.chat-sidebar{display:none}.messages{padding:15px}.chat-main{height:calc(100vh - 68px)}.voice-heading{top:28px}.voice-switch{top:110px;right:50%;transform:translateX(50%)}.voice-orb{width:min(82vw,360px);top:51%}.voice-status{bottom:18px}.navbar .small{display:none}}
.app-icon{display:inline-block;width:1.1em;height:1.1em;vertical-align:-.16em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}.icon-link{display:inline-flex;align-items:center;gap:.4rem}.btn .app-icon{width:1rem;height:1rem}.status-icon{width:1.35rem;height:1.35rem}.action-icon{width:1.4rem;height:1.4rem}