:root{--primary-color: #6366f1;--primary-hover: #4f46e5;--bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);--card-bg: rgba(30, 41, 59, .7);--text-main: #f8fafc;--text-muted: #94a3b8;--input-bg: rgba(15, 23, 42, .6);--border-color: rgba(148, 163, 184, .1);--error-color: #ef4444}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-gradient);color:var(--text-main);min-height:100vh;-webkit-font-smoothing:antialiased}.auth-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1rem}.auth-card{background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:1rem;padding:2.5rem;width:100%;max-width:420px;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.auth-header{text-align:center;margin-bottom:2rem}.auth-header h2{font-size:1.875rem;font-weight:700;margin:0 0 .5rem;background:linear-gradient(to right,#818cf8,#c084fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.auth-header p{color:var(--text-muted);margin:0}.form-group{margin-bottom:1.5rem}label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.5rem;color:var(--text-muted)}input{width:100%;padding:.75rem 1rem;background:var(--input-bg);border:1px solid var(--border-color);border-radius:.5rem;color:var(--text-main);font-size:1rem;transition:all .2s;box-sizing:border-box}input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px #6366f133}input.invalid{border-color:var(--error-color)}.error-msg{display:block;font-size:.75rem;color:var(--error-color);margin-top:.25rem}.error-alert{padding:.75rem;background:#ef44441a;border:1px solid rgba(239,68,68,.2);border-radius:.5rem;color:#fca5a5;font-size:.875rem;margin-bottom:1.5rem;text-align:center}.btn-primary{width:100%;padding:.75rem;background:var(--primary-color);color:#fff;border:none;border-radius:.5rem;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s;display:flex;justify-content:center;align-items:center}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-primary:disabled{opacity:.7;cursor:not-allowed}.auth-footer{margin-top:1.5rem;text-align:center;font-size:.875rem;color:var(--text-muted)}.auth-footer a{color:var(--primary-color);text-decoration:none;font-weight:500}.auth-footer a:hover{text-decoration:underline}.spinner{width:1.25rem;height:1.25rem;border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}