.auth-page { min-height: calc(100vh - 72px); display: grid; place-items: center; padding: 3rem 1.25rem; background: radial-gradient(circle at 15% 10%, rgba(242, 169, 59, .17), transparent 32%), var(--ysms-cream); }
.auth-shell { width: min(100%, 960px); display: grid; grid-template-columns: 1fr 1fr; background: var(--ysms-panel); box-shadow: 0 20px 55px rgba(22, 35, 63, .14); border: 1px solid var(--ysms-line); }
.auth-intro { padding: clamp(2rem, 6vw, 5rem); color: #fff; background: linear-gradient(145deg, var(--ysms-navy), #28506a); }
.auth-kicker, .auth-panel__eyebrow { color: var(--ysms-amber); font: 600 .7rem 'IBM Plex Mono', monospace; letter-spacing: .12em; margin-bottom: 1.25rem; }
.auth-intro h1 { font: 700 clamp(2.4rem, 5vw, 4.5rem)/.95 'Space Grotesk', sans-serif; margin: 0 0 1.5rem; }
.auth-intro > p:not(.auth-kicker):not(.auth-caption) { max-width: 28rem; color: rgba(255, 255, 255, .76); font-size: 1.05rem; line-height: 1.7; }
.auth-rule { width: 4rem; height: 3px; background: var(--ysms-amber); margin: 3rem 0 1.2rem; }
.auth-caption { color: rgba(255, 255, 255, .52); font-size: .85rem; line-height: 1.6; max-width: 18rem; }
.auth-panel { padding: clamp(2rem, 6vw, 4.5rem); }
.auth-panel__heading { display: flex; gap: 1rem; align-items: center; margin-bottom: 2.25rem; }
.auth-mark { display: grid; place-items: center; width: 2.75rem; height: 2.75rem; color: #fff; background: var(--ysms-amber); font-size: 1.25rem; }
.auth-panel__eyebrow { color: var(--ysms-mute); margin: 0 0 .25rem; }
.auth-panel h2 { color: var(--ysms-navy); font: 700 1.75rem 'Space Grotesk', sans-serif; margin: 0; }
.auth-field { margin-bottom: 1.25rem; }
.auth-field label { display: block; color: var(--ysms-navy); font: 600 .85rem 'Space Grotesk', sans-serif; margin-bottom: .5rem; }
.auth-input-shell { position: relative; display: flex; align-items: center; }
.auth-form__input { width: 100%; border: 1px solid var(--ysms-line); border-radius: 6px; padding: .85rem 1rem; color: var(--ysms-ink); background: #fcfbf8; outline: none; transition: border-color .2s, box-shadow .2s; }
.auth-form__input:focus { border-color: var(--ysms-amber); box-shadow: 0 0 0 3px rgba(242, 169, 59, .18); }
.auth-show-password { display: inline-flex; align-items: center; gap: .6rem; margin-top: .55rem; color: var(--ysms-mute); font-size: .82rem; cursor: pointer; }
.auth-show-password input { accent-color: var(--ysms-amber); width: 1rem; height: 1rem; margin: 0; }
.auth-show-password span { user-select: none; }
.auth-submit { width: 100%; border: 0; border-radius: 4px; padding: .9rem 1rem; margin-top: .6rem; background: var(--ysms-navy); color: #fff; font: 600 .95rem 'Space Grotesk', sans-serif; transition: background .2s, transform .2s; }
.auth-submit:hover { background: var(--ysms-navy-2); transform: translateY(-1px); }
.auth-submit i { margin-left: .5rem; color: var(--ysms-amber); }
.auth-alert, .auth-error { color: var(--ysms-coral); font-size: .8rem; }
.auth-alert { padding: .75rem; margin-bottom: 1.25rem; border-left: 3px solid var(--ysms-coral); background: rgba(232, 93, 78, .08); }
.auth-error { margin: .4rem 0 0; }
.auth-footer-note { color: var(--ysms-mute); font-size: .75rem; margin: 1.5rem 0 0; }
@media (max-width: 700px) { .auth-page { padding: 1.5rem 1rem; } .auth-shell { grid-template-columns: 1fr; } .auth-intro { padding: 2rem; } .auth-intro h1 { font-size: 3rem; } .auth-rule { margin: 1.75rem 0 1rem; } .auth-panel { padding: 2rem; } }