.auth-body{background-color:var(--bg-primary);min-height:100vh;display:flex;flex-direction:column}.auth-bg-ambient{position:fixed;top:0;left:0;width:100vw;height:100vh;pointer-events:none;z-index:0;overflow:hidden}.ambient-glow{position:absolute;border-radius:50%;filter:blur(120px);opacity:.25}.glow-burgundy{width:600px;height:600px;background:var(--brand-burgundy);top:-200px;left:-100px}.glow-gold{width:500px;height:500px;background:var(--accent-gold);bottom:-200px;right:-100px;opacity:.12}.auth-header{position:relative;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:var(--sp-lg) var(--sp-xxl)}.back-link{font-family:var(--font-sans);font-size:.8rem;color:var(--accent-gold);letter-spacing:.1em;text-transform:uppercase;font-weight:500;transition:var(--transition-fast)}.back-link:hover{color:var(--text-primary);transform:translate(-4px)}.auth-container{position:relative;z-index:10;flex:1;display:flex;align-items:center;justify-content:center;padding:140px var(--sp-lg) var(--sp-giant)}.auth-card{width:100%;max-width:480px;background:#121212d9;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border-gold-subtle);border-radius:12px;padding:var(--sp-xl);box-shadow:var(--shadow-luxury),var(--shadow-glow-burgundy)}.auth-card-header{text-align:center;margin-bottom:var(--sp-lg)}.badge-gold{display:inline-block;font-family:var(--font-sans);font-size:.65rem;letter-spacing:.25em;color:var(--accent-gold);border:1px solid var(--border-gold-subtle);padding:4px 12px;border-radius:20px;margin-bottom:var(--sp-sm)}.auth-title{font-family:var(--font-serif);font-size:2.2rem;color:var(--text-primary);margin-bottom:var(--sp-xs)}.auth-subtitle{font-size:.88rem;color:var(--text-muted)}.auth-tabs{display:flex;border-bottom:1px solid var(--border-glass);margin-bottom:var(--sp-md)}.auth-tab{flex:1;background:none;border:none;color:var(--text-muted);font-family:var(--font-sans);font-size:.8rem;letter-spacing:.15em;padding:var(--sp-sm) 0;cursor:pointer;position:relative;transition:var(--transition-fast)}.auth-tab.active{color:var(--accent-gold);font-weight:600}.auth-tab.active:after{content:"";position:absolute;bottom:-1px;left:0;width:100%;height:2px;background:var(--accent-gold)}.auth-alert{padding:var(--sp-sm);border-radius:6px;font-size:.85rem;margin-bottom:var(--sp-md);text-align:center}.auth-alert.error{background:#b4141433;border:1px solid rgba(220,50,50,.5);color:#f88}.auth-alert.success{background:#148c3c33;border:1px solid rgba(40,180,80,.5);color:#8fa}.sso-options{display:flex;flex-direction:column;gap:var(--sp-sm);margin-bottom:var(--sp-md)}.btn-sso{display:flex;align-items:center;justify-content:center;gap:var(--sp-sm);width:100%;padding:12px 20px;border-radius:6px;background:var(--bg-tertiary);border:1px solid var(--border-glass);color:var(--text-primary);font-family:var(--font-sans);font-size:.85rem;font-weight:500;cursor:pointer;transition:var(--transition-fast)}.btn-sso:hover{border-color:var(--accent-gold);background:#d4af370d;transform:translateY(-1px)}.sso-icon{width:18px;height:18px}.auth-divider{display:flex;align-items:center;margin:var(--sp-md) 0;color:var(--text-muted);font-size:.7rem;letter-spacing:.2em}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border-glass)}.auth-divider span{padding:0 var(--sp-sm)}.form-group{margin-bottom:var(--sp-md)}.form-label{display:block;font-family:var(--font-sans);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-champagne);margin-bottom:6px}.label-row{display:flex;justify-content:space-between;align-items:center}.forgot-link{font-size:.75rem;color:var(--accent-gold)}.form-input{width:100%;background:var(--bg-tertiary);border:1px solid var(--border-gold-subtle);color:var(--text-primary);padding:14px 16px;border-radius:6px;font-family:var(--font-body);font-size:.95rem;outline:none;transition:var(--transition-fast)}.form-input:focus{border-color:var(--accent-gold);box-shadow:var(--shadow-glow-gold)}.input-hint{display:block;font-size:.75rem;color:var(--accent-gold);margin-top:6px;opacity:.9}.auth-card-footer{text-align:center;margin-top:var(--sp-lg);font-size:.75rem;color:var(--text-muted)}.auth-card-footer a{color:var(--accent-gold)}.hidden{display:none!important}.btn-spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.header-auth-btn{margin-right:12px}@media (max-width: 768px){.auth-header{padding:16px!important}.auth-container{padding:100px 16px 40px!important}.auth-card{padding:24px 16px!important}.auth-input{min-height:48px!important;font-size:16px!important}.auth-card .btn{min-height:48px!important;display:inline-flex;align-items:center;justify-content:center}}