:root { color-scheme: dark; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-synthesis: none; background: #090e18; color: #edf3ff; }
    * { box-sizing: border-box; }
    body { min-height: 100vh; min-height: 100dvh; margin: 0; display: grid; place-items: center; padding: 28px 18px; background: radial-gradient(ellipse at 50% 9%, rgba(49,110,172,.15), transparent 48%), linear-gradient(180deg,#0d1522,#090e18 68%); }
    .shell { width: min(100%,420px); }
    .brand { display: flex; align-items: center; gap: 12px; margin-bottom: 30px; }
    .mark { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid rgba(116,173,230,.45); border-radius: 12px; color: #91c9fa; background: #17273b; box-shadow: 0 0 22px rgba(61,140,219,.12); }
    .brand-name { font-size: 14px; font-weight: 700; letter-spacing: .035em; }
    .brand-type { margin-top: 3px; color: #8294ab; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
    .card { padding: clamp(26px,7vw,38px); background: rgba(18,27,42,.95); border: 1px solid #2a3a50; border-radius: 20px; box-shadow: 0 28px 72px rgba(0,0,0,.32), inset 0 1px rgba(255,255,255,.035); }
    .eyebrow { margin: 0 0 12px; color: #74b7ed; font-size: 11px; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
    h1 { margin: 0; font-size: clamp(26px,7vw,32px); letter-spacing: -.045em; line-height: 1.2; font-weight: 650; }
    .intro { margin: 12px 0 30px; color: #a1b1c5; line-height: 1.6; font-size: 14px; }
    .field { margin-top: 20px; }
    label { display: block; margin-bottom: 9px; font-size: 13px; font-weight: 600; color: #d6e2f0; }
    input { display: block; width: 100%; height: 48px; padding: 0 14px; border: 1px solid #36485e; border-radius: 9px; outline: none; background: #0c1523; color: #eff6ff; font: inherit; font-size: 14px; transition: border-color .18s, box-shadow .18s; }
    input::placeholder { color: #75869b; }
    input:focus-visible { border-color: #7abef1; box-shadow: 0 0 0 3px rgba(86,159,223,.18); }
    button { width: 100%; min-height: 48px; margin-top: 27px; border: 1px solid #9bd1ff; border-radius: 9px; background: #7dbdf3; color: #102033; font: inherit; font-size: 14px; font-weight: 700; cursor: pointer; transition: background .18s, transform .18s; }
    button:hover { background: #add8fa; }
    button:active { transform: translateY(1px); }
    button:focus-visible { outline: 3px solid #fff; outline-offset: 3px; }
    .error { display: none; margin: 19px 0 0; padding: 12px 14px; border: 1px solid #895260; border-radius: 8px; background: #30202b; color: #ffcad2; font-size: 13px; line-height: 1.5; }
    .error.visible { display: block; }
    .foot { margin: 25px 0 0; color: #8294ab; text-align: center; font-size: 12px; }
    @media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; } }