*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #6366f1;--primary-hover: #4f46e5;--bg-page: #f8f9fb;--bg-card: #ffffff;--border: #e5e7eb;--text: #111827;--text-muted: #6b7280;--danger: #ef4444;--success: #22c55e}@media(prefers-color-scheme:dark){:root{--primary: #818cf8;--bg-page: #0f1117;--bg-card: #1a1d27;--border: #2d3148;--text: #e5e7eb;--text-muted: #9ca3af}}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-page);color:var(--text);line-height:1.6}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem;background:linear-gradient(135deg,#6366f1,#4f46e5)}.auth-card{background:var(--bg-card);border-radius:16px;padding:2rem;width:100%;max-width:420px;box-shadow:0 20px 60px #0003}.auth-logo{text-align:center;margin-bottom:1.5rem}.auth-logo .logo-icon{font-size:2.5rem;display:block;margin-bottom:.5rem}.auth-logo h1{font-size:1.5rem;font-weight:800;color:var(--primary);margin-bottom:.25rem}.auth-logo p{font-size:.875rem;color:var(--text-muted)}h2{font-size:1.25rem;margin-bottom:1rem}.twofa-hint{font-size:.875rem;color:var(--text-muted);margin-bottom:1rem}.form-group{margin-bottom:1rem}.form-group label{display:block;font-size:.8rem;font-weight:600;margin-bottom:.375rem;color:var(--text)}.form-group label .hint{font-weight:400;color:var(--text-muted)}.form-group input{width:100%;padding:.625rem .875rem;border:1.5px solid var(--border);border-radius:8px;font-size:.9rem;background:var(--bg-page);color:var(--text);outline:none;transition:border-color .15s}.form-group input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #6366f11a}.btn-primary{width:100%;padding:.75rem;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:background .15s}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-primary.btn-sm{width:auto;padding:.4rem 1rem;font-size:.8rem}.btn-ghost{width:100%;padding:.625rem;background:transparent;color:var(--text-muted);border:1.5px solid var(--border);border-radius:8px;font-size:.875rem;cursor:pointer;margin-top:.5rem;transition:all .15s}.btn-ghost:hover{color:var(--text);border-color:var(--text-muted)}.btn-ghost.btn-sm{width:auto;padding:.4rem .75rem;font-size:.8rem;margin-top:0}.btn-copy{padding:.3rem .75rem;background:transparent;border:1.5px solid var(--primary);color:var(--primary);border-radius:6px;font-size:.8rem;cursor:pointer;white-space:nowrap}.btn-copy:hover{background:var(--primary);color:#fff}.alert{padding:.75rem 1rem;border-radius:8px;margin-bottom:1rem;font-size:.875rem}.alert-error{background:#fef2f2;border:1px solid #fca5a5;color:#991b1b}.alert-success{background:#f0fdf4;border:1px solid #86efac;color:#166534}.auth-link{text-align:center;font-size:.85rem;margin-top:1rem;color:var(--text-muted)}.auth-link a{color:var(--primary);text-decoration:none;font-weight:600}.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:inline-block}.spinner-lg{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}