:root{--bg:#0b0e17;--panel:#121725;--panel2:#171d2d;--text:#f4f5fb;--muted:#8e97ad;--line:#283147;--accent:#b8f36a;--purple:#8d7bff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Vazirmatn, sans-serif;min-height:100vh}button,input{font:inherit}button{cursor:pointer}.ambient{position:fixed;border-radius:50%;filter:blur(90px);opacity:.18;pointer-events:none}.ambient-one{width:350px;height:350px;background:#6855ff;top:-150px;right:4%}.ambient-two{width:300px;height:300px;background:#a8e768;bottom:-150px;left:5%}.app-shell{max-width:1200px;margin:auto;padding:26px 34px;min-height:100vh;display:flex;flex-direction:column}.topbar,.side-brand,.chat-header,.profile{display:flex;align-items:center;justify-content:space-between}.brand{color:var(--text);font-size:22px;font-weight:800;text-decoration:none;display:flex;align-items:center;gap:10px}.brand-mark,.mini-logo{display:grid;place-items:center;color:var(--bg);background:var(--accent);width:31px;height:31px;border-radius:10px;font-size:18px}.top-actions{display:flex;align-items:center;gap:18px;color:var(--muted);font-size:12px}.secure i,.online i{display:inline-block;width:7px;height:7px;background:var(--accent);border-radius:50%;margin-left:6px}.ghost,.icon-btn{background:none;border:0;color:var(--muted);font-size:19px}.auth-layout{flex:1;display:grid;grid-template-columns:1fr 410px;gap:100px;align-items:center;max-width:1000px;width:100%;margin:30px auto}.hero .eyebrow{color:var(--accent);font-size:13px;margin-bottom:20px}.eyebrow span{display:inline-block;width:6px;height:6px;background:var(--accent);border-radius:50%;margin-left:7px}.hero h1{font-size:68px;line-height:1.2;margin:0 0 20px;letter-spacing:-3px}.hero h1 em{color:var(--accent);font-style:normal}.hero p{color:var(--muted);line-height:2;font-size:15px;max-width:430px}.trust-row{display:flex;align-items:center;gap:13px;color:var(--muted);font-size:12px;margin-top:35px}.avatar-stack{display:flex;direction:ltr}.avatar-stack b{display:grid;place-items:center;width:27px;height:27px;border:2px solid var(--bg);background:#5d63a5;border-radius:50%;font-size:10px;margin-left:-7px}.avatar-stack b:nth-child(2){background:#bc7d62}.avatar-stack b:nth-child(3){background:#8dba67}.avatar-stack b:nth-child(4){background:#363d54}.auth-card{background:rgba(18,23,37,.88);border:1px solid var(--line);border-radius:24px;padding:31px;box-shadow:0 20px 80px #0004}.card-heading{display:flex;gap:13px;align-items:center}.card-heading h2{margin:0;font-size:21px}.card-heading p{margin:3px 0 0;color:var(--muted);font-size:12px}.tabs{display:flex;border-bottom:1px solid var(--line);margin:28px 0 21px;gap:25px}.tab{background:none;border:0;color:var(--muted);padding:0 0 12px;border-bottom:2px solid transparent}.tab.active{color:var(--text);border-color:var(--accent)}label{display:block;color:#bdc4d5;font-size:12px;margin:16px 0}input{width:100%;background:#0d1220;color:var(--text);border:1px solid var(--line);border-radius:11px;padding:13px 14px;margin-top:8px;outline:none}input:focus{border-color:var(--purple)}.password-field{position:relative}.password-field input{padding-left:42px}.password-field button{position:absolute;left:10px;bottom:10px;color:var(--muted);background:none;border:0}.primary-btn,.new-chat{width:100%;border:0;background:var(--accent);color:#15200d;padding:13px;border-radius:11px;font-weight:700;display:flex;justify-content:space-between}.fine-print{color:#687187;font-size:10px;text-align:center;margin:17px 0 0}.hidden{display:none!important}.form-message{font-size:11px;color:#ffaeae;min-height:18px}.status-view{margin:auto;text-align:center;max-width:430px}.status-icon{font-size:45px;color:var(--accent)}.status-view h2{font-size:27px}.status-view p{color:var(--muted);line-height:2}.outline-btn{background:none;border:1px solid var(--line);color:var(--text);border-radius:10px;padding:11px 20px}.chat-layout{flex:1;display:grid;grid-template-columns:250px 1fr;background:var(--panel);border:1px solid var(--line);border-radius:20px;overflow:hidden;margin:28px 0}.sidebar{background:#0f1421;padding:22px;display:flex;flex-direction:column}.side-brand{font-weight:800;margin-bottom:25px}.new-chat{font-size:12px;justify-content:center;margin-bottom:28px}.side-label{font-size:11px;color:#687187;margin-bottom:12px}.chat-list{flex:1}.chat-item{padding:11px 10px;color:#afb7c9;font-size:12px;border-radius:8px;margin:3px 0}.chat-item.active{background:#1b2233;color:var(--text)}.profile{border-top:1px solid var(--line);padding-top:18px;gap:9px;justify-content:flex-start}.profile-avatar{background:#7362de;width:30px;height:30px;border-radius:50%;display:grid;place-items:center}.profile strong{display:block;font-size:11px}.profile small{color:var(--muted);font-size:9px}.profile>span{margin-right:auto;color:var(--muted)}.chat-main{display:flex;flex-direction:column;min-height:620px}.chat-header{padding:27px 32px;border-bottom:1px solid var(--line)}.chat-header h2{font-size:19px;margin:9px 0 0}.online{font-size:11px;color:var(--muted)}.messages{flex:1;padding:30px;overflow:auto}.welcome{text-align:center;max-width:520px;margin:60px auto}.welcome-spark{margin:auto;background:#292347;color:var(--accent);border-radius:14px;width:48px;height:48px;display:grid;place-items:center;font-size:24px}.welcome h3{font-size:24px;margin:15px 0 5px}.welcome p{color:var(--muted);font-size:13px}.suggestions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:25px}.suggestions button{background:#1b2233;border:1px solid var(--line);color:#c7cede;padding:9px 13px;border-radius:20px;font-size:11px}.message{max-width:75%;padding:13px 16px;border-radius:15px;margin:10px 0;line-height:1.9;font-size:13px}.message.user{background:#2b3550;margin-right:auto}.message.assistant{background:#1b2233;margin-left:auto}.composer{position:relative;padding:20px 30px}.composer input{margin:0;padding-left:50px}.composer button{position:absolute;left:42px;top:29px;border:0;border-radius:8px;background:var(--accent);width:30px;height:30px}.composer small{display:block;color:#606a80;text-align:center;font-size:9px;margin-top:10px}footer{text-align:center;color:#586278;font-size:10px;padding-top:20px}footer span{padding:0 8px}@media(max-width:800px){.app-shell{padding:20px}.auth-layout{grid-template-columns:1fr;gap:30px}.hero{text-align:center}.hero h1{font-size:48px}.hero p{margin:auto}.trust-row{justify-content:center}.chat-layout{grid-template-columns:1fr}.sidebar{display:none}}