:root{--bg:#f4f6f9;--surface:#ffffff;--text:#0f172a;--text-muted:#64748b;--primary:#0d9488;--primary-soft:#ccfbf1;--radius-lg:20px;--radius-md:14px;--shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px -12px rgba(15,23,42,.12);--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
:root[data-theme="dark"]{--bg:#0b1120;--surface:#131b2e;--text:#e6e9f2;--text-muted:#94a3b8;--primary:#2dd4bf;--primary-soft:#0f3d38;--shadow:0 1px 2px rgba(0,0,0,.3),0 12px 28px -12px rgba(0,0,0,.55)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0b1120;--surface:#131b2e;--text:#e6e9f2;--text-muted:#94a3b8;--primary:#2dd4bf;--primary-soft:#0f3d38;--shadow:0 1px 2px rgba(0,0,0,.3),0 12px 28px -12px rgba(0,0,0,.55)}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;color:inherit}
.mt-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:999px;padding:12px 20px;font-weight:600;font-size:15px;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}
.mt-btn:active{transform:scale(.97)}
.mt-btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px -8px var(--primary)}
.mt-welcome{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 20px;text-align:center;background:radial-gradient(circle at 50% 0%,var(--primary-soft),var(--bg) 60%)}
.mt-welcome-badge{width:64px;height:64px;border-radius:20px;background:var(--primary);color:#fff;font-weight:700;font-size:20px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;box-shadow:0 12px 30px -10px var(--primary)}
.mt-welcome h1{font-size:32px;margin:0 0 12px;letter-spacing:-.02em}
.mt-welcome p{color:var(--text-muted);max-width:420px;margin:0 auto 28px;font-size:16px;line-height:1.5}
.mt-welcome-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.mt-topbar-sub{font-size:13px;color:var(--text-muted)}
.mt-feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;max-width:680px;margin-top:40px;width:100%}
.mt-feature{background:var(--surface);border-radius:var(--radius-md);padding:18px;box-shadow:var(--shadow);text-align:left}
.mt-feature i{font-size:22px;color:var(--primary)}
.mt-feature h3{font-size:14px;margin:10px 0 4px}
.mt-feature p{font-size:13px;color:var(--text-muted);margin:0;line-height:1.4}
.mt-welcome-logo{max-height:72px;max-width:240px;object-fit:contain;margin-bottom:20px}