:root{--bg:#0a0b0f;--bg-soft:#11131a;--card:#171a23;--line:#232732;--gold:#d4af37;--gold-soft:#f0d27a;--text:#eef1f6;--muted:#9aa3b2;--danger:#ef4444;--ok:#22c55e;--radius:14px;--shadow:0 18px 50px rgba(0,0,0,.45);--font:'Inter',system-ui,sans-serif;--serif:'Playfair Display',serif}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.6}
a{color:var(--gold);text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.nav{position:sticky;top:0;z-index:50;background:rgba(10,11,15,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;max-width:1180px;margin:0 auto}
.brand{font-family:var(--serif);font-size:1.5rem;font-weight:700;color:var(--gold)}.brand span{color:#fff}
.nav-links{display:flex;gap:28px;align-items:center}.nav-links a{color:var(--muted);font-size:.95rem}
.nav-toggle{display:none;background:none;border:0;color:var(--text);font-size:1.6rem;cursor:pointer}
.hero{padding:100px 0 60px;text-align:center;background:radial-gradient(circle at 50% 0%,rgba(212,175,55,.18),transparent 60%)}
.hero h1{font-family:var(--serif);font-size:clamp(2rem,5vw,3.8rem);line-height:1.15;margin-bottom:18px}
.hero h1 .gold{background:linear-gradient(120deg,var(--gold),var(--gold-soft));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);max-width:640px;margin:0 auto 32px;font-size:1.05rem}
.section{padding:70px 0}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;font-weight:600;font-size:.95rem;border:0;cursor:pointer;min-height:48px;transition:.25s}
.btn-gold{background:linear-gradient(120deg,var(--gold),var(--gold-soft));color:#1c1407}
.btn-gold:hover{transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn-block{width:100%;justify-content:center}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.grid{display:grid;gap:24px;grid-template-columns:repeat(3,1fr)}
.feature{padding:28px;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
.feature:hover{border-color:var(--gold);transform:translateY(-3px)}
.feature .icon{width:46px;height:46px;border-radius:12px;background:rgba(212,175,55,.18);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:14px;color:var(--gold)}
.feature h3{font-family:var(--serif);font-size:1.25rem;margin-bottom:8px}
.feature p{color:var(--muted);font-size:.95rem}
.form-group{margin-bottom:18px}
.form-group label{display:block;margin-bottom:8px;font-size:.9rem;color:var(--muted)}
.input,.textarea,select{width:100%;padding:13px 16px;background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;color:var(--text);font-size:1rem;font-family:inherit;min-height:48px}
.textarea{min-height:140px;resize:vertical}
.input:focus,.textarea:focus{outline:none;border-color:var(--gold)}
.auth-wrap{min-height:80vh;display:flex;align-items:center;justify-content:center;padding:40px 20px}
.auth-box{width:100%;max-width:440px}
.auth-box h2{font-family:var(--serif);font-size:1.9rem;margin-bottom:8px;text-align:center}
.alert{padding:14px 18px;border-radius:10px;margin-bottom:18px;font-size:.95rem}
.alert-error{background:rgba(239,68,68,.1);border:1px solid var(--danger);color:#fca5a5}
.alert-ok{background:rgba(34,197,94,.1);border:1px solid var(--ok);color:#86efac}
.code-block{background:#06080c;border:1px solid var(--line);border-radius:10px;padding:18px;font-family:'Consolas',monospace;font-size:.85rem;color:#9af0c0;overflow-x:auto;word-break:break-all}
.chat-preview{max-width:380px;margin:0 auto;background:#fff;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);color:#1a1f2c}
.chat-header{background:var(--gold);color:#1a1407;padding:18px;font-weight:600;font-family:var(--serif);font-size:1.1rem}
.chat-body{height:340px;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:10px;background:#fafafa}
.chat-msg{max-width:80%;padding:10px 14px;border-radius:14px;font-size:.92rem;line-height:1.5}
.chat-msg.bot{background:#eee;color:#222;border-bottom-left-radius:4px;align-self:flex-start}
.chat-msg.user{background:var(--gold);color:#1a1407;border-bottom-right-radius:4px;align-self:flex-end}
.chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid #eee;background:#fff}
.chat-input input{flex:1;padding:11px 14px;border:1px solid #ddd;border-radius:999px;font-size:.95rem;color:#222;outline:none}
.chat-input button{padding:11px 18px;background:var(--gold);color:#1a1407;border:0;border-radius:999px;font-weight:600;cursor:pointer}
.loader{display:inline-block;width:18px;height:18px;border:2px solid #fff5;border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
footer{padding:40px 20px;text-align:center;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;margin-top:50px}
@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.nav-toggle{display:block}.nav-links{position:fixed;top:64px;right:-100%;flex-direction:column;background:var(--bg-soft);width:80%;max-width:300px;height:calc(100vh - 64px);padding:30px 24px;gap:20px;align-items:flex-start;transition:right .3s;border-left:1px solid var(--line)}.nav-links.open{right:0}.grid{grid-template-columns:1fr}.section{padding:40px 0}}
@media(max-width:420px){.container{padding:0 16px}}