:root{--bg:#0d1117;--surface:#151b23;--surface2:#1c2430;--line:#293241;--text:#f4f7fb;--muted:#8f9bab;--accent:#ff5d39;--accent2:#ff896c;--danger:#ff5f68;--radius:16px}*{box-sizing:border-box}html{font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}body{margin:0;min-height:100vh;background:radial-gradient(circle at 15% -15%,#312017 0,transparent 32%),var(--bg)}a{color:inherit;text-decoration:none}.topbar{height:72px;padding:0 clamp(20px,5vw,72px);display:flex;align-items:center;border-bottom:1px solid var(--line);background:rgba(13,17,23,.9);backdrop-filter:blur(16px);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:12px;font-size:18px;white-space:nowrap}.brand b{color:var(--accent)}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;background:var(--accent);font-weight:900}.main-nav{display:flex;gap:6px;margin-left:42px}.main-nav a{color:var(--muted);padding:10px 12px;border-radius:9px}.main-nav a:hover{background:var(--surface2);color:var(--text)}.user-menu{margin-left:auto;display:flex;align-items:center;gap:14px;color:var(--muted)}.user-menu button{background:none;border:0;color:var(--accent2);cursor:pointer;font:inherit}.main-container{width:min(1180px,calc(100% - 40px));margin:0 auto;padding:54px 0 80px}footer{text-align:center;padding:25px;color:#657183;border-top:1px solid var(--line);font-size:12px;letter-spacing:.16em}.welcome-card{max-width:760px;margin:10vh auto;padding:64px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(135deg,rgba(255,93,57,.08),transparent 50%),var(--surface)}h1{font-size:clamp(32px,5vw,54px);line-height:1.05;margin:12px 0 18px;letter-spacing:-.04em}h2{font-size:20px;margin:0 0 22px}.welcome-card p,.page-heading p{color:var(--muted);font-size:18px;line-height:1.6}.eyebrow{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.18em}.btn{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:10px;padding:12px 18px;font-weight:700;cursor:pointer}.btn-accent{background:var(--accent);color:white}.btn-accent:hover{background:var(--accent2)}.btn-secondary-custom{background:#344052;color:white}.btn-danger-soft{background:rgba(255,95,104,.12);color:var(--danger)}.btn:disabled{opacity:.35;cursor:not-allowed}.w-100{width:100%}.auth-shell{min-height:calc(100vh - 230px);display:grid;place-items:center}.auth-card{width:min(440px,100%);padding:38px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);box-shadow:0 24px 80px rgba(0,0,0,.3)}.auth-card h1{font-size:34px}.muted{color:var(--muted);line-height:1.5}.auth-card label,.stack-form label{display:block;color:#c9d1dc;font-size:13px;font-weight:700;margin:18px 0 7px}.auth-card input,.stack-form input,.stack-form select{width:100%;background:#0f141b;border:1px solid #303b4a;border-radius:9px;color:white;padding:13px 14px;font:inherit;outline:none}.auth-card input:focus,.stack-form input:focus,.stack-form select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,93,57,.12)}.auth-card .btn{margin-top:24px}.validation{color:#ff7b83;font-size:13px;margin-top:5px}.validation ul{padding-left:18px}.page-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:30px}.page-heading h1{font-size:42px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat-card,.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}.stat-card{padding:24px}.stat-card span{display:block;color:var(--muted);font-size:13px}.stat-card strong{font-size:38px;display:block;margin-top:8px}.content-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:20px}.panel{padding:26px}.account-list{display:grid;gap:10px}.account-row{display:flex;justify-content:space-between;align-items:center;padding:15px;background:var(--surface2);border-radius:11px}.account-row small{display:block;color:var(--muted);margin-top:5px}.stack-form .btn{margin-top:20px;width:100%}.panel hr{border:0;border-top:1px solid var(--line);margin:30px 0}.notice{padding:13px 16px;background:rgba(75,210,147,.1);border:1px solid rgba(75,210,147,.3);border-radius:10px;color:#7be0ae;margin-bottom:18px}@media(max-width:900px){.main-nav{display:none}.stat-grid{grid-template-columns:repeat(2,1fr)}.content-grid{grid-template-columns:1fr}}@media(max-width:560px){.topbar{padding:0 16px}.brand span:last-child{display:none}.main-container{width:calc(100% - 24px);padding-top:30px}.welcome-card,.auth-card{padding:28px}.stat-grid{grid-template-columns:1fr}.user-menu>span{display:none}}