* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { font-family: "Inter", system-ui, sans-serif; background: #f5f4f2; color: #0c0c14; -webkit-font-smoothing: antialiased; font-size: 14px; }
.wrap { min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 24px 16px calc(24px + env(safe-area-inset-bottom)); }
.card { width: 100%; max-width: 420px; background: #fff; border-radius: 24px; padding: 40px 40px 36px; box-shadow: 0 8px 32px rgb(12 12 20 / .08); position: relative; }
.logo { display: flex; align-items: center; justify-content: center; gap: 10px; font-weight: 700; font-size: 22px; margin-bottom: 28px; letter-spacing: -0.02em; }
h1 { font-size: 26px; margin: 0; text-align: center; letter-spacing: -0.02em; }
.sub { text-align: center; color: #5c5958; margin: 6px 0 28px; }
label { display: block; font-weight: 600; margin-bottom: 6px; }
input { width: 100%; height: 44px; border: 1px solid #adaba8; border-radius: 8px; padding: 0 14px; font: inherit; font-size: 16px; outline: 0; background: #fff; color: inherit; }
input:hover { border-color: #8f8d8a; }
input:focus { border-color: #6d4aff; box-shadow: 0 0 0 3px rgb(109 74 255 / .2); }
#c { letter-spacing: .5em; text-align: center; font-size: 22px; font-weight: 600; height: 52px; }
.btn { width: 100%; height: 44px; margin-top: 24px; border: 0; border-radius: 8px; background: #6d4aff; color: #fff; font: inherit; font-weight: 600; font-size: 15px; cursor: pointer; transition: background .15s; }
.btn:hover { background: #6243e6; }
.btn:active { background: #573bcc; }
.btn:disabled { opacity: .7; cursor: default; }
.back { position: absolute; top: 24px; left: 24px; width: 36px; height: 36px; border-radius: 8px; border: 0; background: none; cursor: pointer; display: flex; align-items: center; justify-content: center; color: #0c0c14; }
.back:hover { background: rgb(194 193 192 / .25); }
.who { text-align: center; margin: -14px 0 20px; color: #5c5958; }
.who b { color: #0c0c14; }
.err { color: #dc3251; min-height: 20px; margin: 14px 0 0; text-align: center; }
.foot { color: #8f8d8a; font-size: 12.5px; margin-top: 24px; }
@media (max-width: 480px) { .card { padding: 32px 22px 28px; border-radius: 18px; } .back { top: 16px; left: 12px; } }