.auth-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    background:
        radial-gradient(circle at 20% 10%, rgba(72,238,134,.16), transparent 28%),
        radial-gradient(circle at 90% 85%, rgba(82,144,255,.16), transparent 32%),
        linear-gradient(135deg,#050b14 0%,#091426 55%,#050b14 100%);
    color: #f5f8fc;
}
.auth-brand-side { padding: 48px; display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid rgba(128,166,215,.16); }
.auth-brand { display: flex; align-items: center; gap: 14px; font-size: 28px; font-weight: 900; }
.auth-logo { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; font-size: 28px; font-weight: 900; color: #082316; background: linear-gradient(145deg,#30e48d,#eafff7); }
.auth-hero h1 { font-size: clamp(42px,5vw,74px); line-height: .98; margin: 0 0 20px; letter-spacing: -2px; }
.auth-hero h1 span { color: #48ee86; }
.auth-hero p { max-width: 500px; color: #a9b8ca; line-height: 1.7; font-size: 17px; }
.auth-pill { display: inline-flex; padding: 10px 14px; border-radius: 999px; color: #60ead8; border: 1px solid rgba(96,234,216,.28); background: rgba(96,234,216,.07); margin-bottom: 22px; }
.auth-features { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; margin-top: 34px; max-width: 560px; }
.auth-feature { padding: 18px; border-radius: 16px; border: 1px solid rgba(128,166,215,.18); background: linear-gradient(145deg,rgba(23,36,56,.62),rgba(8,16,29,.72)); }
.auth-feature i { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 12px; font-style: normal; background: rgba(72,238,134,.14); color: #48ee86; }
.auth-feature b { display: block; margin-bottom: 6px; }
.auth-feature span { color: #9fb0c5; font-size: 13px; line-height: 1.45; }
.auth-form-side { min-height: 100vh; display: grid; place-items: center; padding: 32px; }
.auth-card { width: min(470px,100%); border-radius: 28px; padding: 34px; border: 1px solid rgba(128,166,215,.24); background: radial-gradient(circle at 100% 0%,rgba(72,238,134,.12),transparent 35%), linear-gradient(145deg,rgba(23,36,56,.78),rgba(8,16,29,.92)); box-shadow: 0 28px 90px rgba(0,0,0,.44); }
.auth-card h2 { margin: 0; font-size: 32px; }
.auth-card > p { margin: 10px 0 28px; color: #a9b8ca; line-height: 1.55; }
.auth-alert, .auth-success { padding: 14px 16px; border-radius: 14px; margin-bottom: 18px; border: 1px solid rgba(255,80,99,.32); color: #ff9daa; background: rgba(255,80,99,.09); }
.auth-success { border-color: rgba(72,238,134,.32); color: #48ee86; background: rgba(72,238,134,.09); }
.auth-field { margin-bottom: 18px; }
.auth-field label { display: block; color: #cbd7e6; margin-bottom: 8px; font-weight: 700; }
.auth-input { width: 100%; height: 54px; border-radius: 14px; padding: 0 16px; color: #f5f8fc; outline: none; border: 1px solid rgba(128,166,215,.32); background: rgba(7,15,28,.72); }
.auth-input:focus { border-color: rgba(96,234,216,.8); box-shadow: 0 0 0 4px rgba(96,234,216,.1); }
.auth-row { display: flex; justify-content: space-between; gap: 14px; margin: 4px 0 22px; color: #a9b8ca; font-size: 14px; }
.auth-check { display: inline-flex; align-items: center; gap: 8px; }
.auth-link { color: #60ead8; text-decoration: none; }
.auth-button { width: 100%; height: 56px; border: 0; border-radius: 16px; color: #fff; cursor: pointer; font-weight: 900; font-size: 16px; background: linear-gradient(135deg,#1fb766,#43ee8c); }
.auth-divider { display: flex; align-items: center; gap: 12px; color: #7f90a6; margin: 24px 0; font-size: 13px; }
.auth-divider:before, .auth-divider:after { content: ""; height: 1px; flex: 1; background: rgba(128,166,215,.18); }
.mobile-signup-box { padding: 18px; border-radius: 18px; border: 1px solid rgba(96,234,216,.24); background: rgba(96,234,216,.07); color: #cbd7e6; }
.mobile-signup-box b { display: block; color: #f5f8fc; margin-bottom: 6px; }
.mobile-signup-box p { margin: 0; color: #9fb0c5; line-height: 1.55; font-size: 14px; }
.auth-meta { margin-top: 22px; text-align: center; color: #7f90a6; font-size: 13px; }
.logout-card { text-align: center; }
.logout-icon { width: 74px; height: 74px; margin: 0 auto 18px; border-radius: 24px; display: grid; place-items: center; font-size: 32px; color: #48ee86; background: rgba(72,238,134,.12); border: 1px solid rgba(72,238,134,.24); }
@media(max-width:980px) { .auth-shell { grid-template-columns: 1fr; } .auth-brand-side { display: none; } .auth-card { padding: 26px; } }