:root { color-scheme: dark; font-family: Inter, ui-sans-serif, system-ui, sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; color: #ecf3ff; background: radial-gradient(circle at 15% 15%, #173a68 0, transparent 35%), #07111f; }
.shell { width: min(960px, 92vw); display: grid; grid-template-columns: 1fr 420px; gap: 64px; align-items: center; }
.eyebrow { color: #71b7ff; font-size: .72rem; font-weight: 800; letter-spacing: .2em; }
.hero h1 { margin: 12px 0 18px; font-size: clamp(3rem, 7vw, 5.6rem); line-height: .92; letter-spacing: -.06em; }
.hero > p:last-child { max-width: 470px; color: #a9bad0; line-height: 1.7; }
.card { padding: 30px; border: 1px solid #243a55; border-radius: 22px; background: rgba(13, 27, 45, .86); box-shadow: 0 24px 70px #0008; backdrop-filter: blur(16px); }
.tabs { display: grid; grid-template-columns: 1fr 1fr; padding: 4px; margin-bottom: 26px; border-radius: 12px; background: #091522; }
.tab { border: 0; padding: 11px; color: #8295ad; background: transparent; border-radius: 9px; font-weight: 700; cursor: pointer; }
.tab.active { color: #fff; background: #19304a; }
.panel { display: none; gap: 18px; }
.panel.active { display: grid; }
label { display: grid; gap: 8px; color: #c5d2e2; font-size: .88rem; font-weight: 650; }
input { width: 100%; padding: 14px; border: 1px solid #2b435e; border-radius: 10px; outline: none; color: #fff; background: #091522; font: inherit; }
input:focus { border-color: #4da7ff; box-shadow: 0 0 0 3px #4da7ff24; }
.primary, .copy { border: 0; border-radius: 10px; cursor: pointer; font-weight: 800; }
.primary { margin-top: 4px; padding: 14px; color: #06101b; background: linear-gradient(135deg, #61c5ff, #6794ff); }
.notice { padding: 13px 15px; margin-bottom: 18px; border-radius: 10px; font-size: .9rem; }
.notice.success { border: 1px solid #1f8f66; color: #a8f5d7; background: #0c493544; }
.notice.error { border: 1px solid #af4659; color: #ffc4ce; background: #5c172444; }
.password-box { display: grid; gap: 9px; padding: 14px; margin-bottom: 18px; overflow-wrap: anywhere; border: 1px solid #2b6ca5; border-radius: 10px; background: #0b2640; }
.password-box span, .hint { color: #93a9c1; font-size: .8rem; }
.password-box code { color: #82d0ff; font-size: .78rem; }
.copy { justify-self: start; padding: 7px 10px; color: #cdeaff; background: #24547c; }
.hint { margin: -4px 0 0; line-height: 1.5; }
.hint code { color: #bcd6ee; }
@media (max-width: 760px) { .shell { grid-template-columns: 1fr; gap: 30px; padding: 42px 0; } .hero h1 { font-size: 3.5rem; } }