:root{--bg-gradient: linear-gradient(135deg, #0a0f1d 0%, #151d33 50%, #0d1222 100%);--panel-bg: rgba(18, 24, 43, .85);--panel-border: rgba(64, 93, 148, .3);--primary-color: #3b82f6;--primary-hover: #2563eb;--accent-color: #10b981;--text-main: #f3f4f6;--text-muted: #9ca3af;--error-color: #ef4444;--success-color: #10b981;--font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background:var(--bg-gradient);min-height:100vh;display:flex;justify-content:center;align-items:center;color:var(--text-main);overflow:hidden}.login-container{background:var(--panel-bg);border:1px solid var(--panel-border);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-radius:16px;padding:40px;width:100%;max-width:440px;box-shadow:0 20px 50px #0009,0 0 30px #3b82f626;display:flex;flex-direction:column;gap:20px;position:relative}.login-header{text-align:center}.login-header h1{font-size:28px;font-weight:800;letter-spacing:2px;background:linear-gradient(90deg,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:6px}.login-header p{font-size:13px;color:var(--text-muted)}.lang-selector{display:flex;justify-content:center;gap:8px}.lang-btn{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);color:var(--text-muted);padding:4px 12px;border-radius:20px;font-size:12px;cursor:pointer;transition:all .2s ease}.lang-btn:hover,.lang-btn.active{background:#3b82f633;border-color:var(--primary-color);color:var(--text-main)}.tab-buttons{display:flex;background:#0000004d;border-radius:8px;padding:4px;gap:4px}.tab-btn{flex:1;background:transparent;border:none;color:var(--text-muted);padding:10px;border-radius:6px;font-weight:600;font-size:14px;cursor:pointer;transition:all .2s ease}.tab-btn.active{background:var(--primary-color);color:#fff;box-shadow:0 2px 10px #3b82f666}.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.form-group label{font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);font-weight:600}.form-group input{background:#0006;border:1px solid rgba(255,255,255,.15);border-radius:8px;padding:12px 14px;color:var(--text-main);font-size:14px;outline:none;transition:border-color .2s ease}.form-group input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #3b82f633}.btn-primary{background:linear-gradient(135deg,var(--primary-color),#1d4ed8);border:none;color:#fff;padding:14px;border-radius:8px;font-weight:700;font-size:15px;cursor:pointer;width:100%;display:flex;justify-content:center;align-items:center;gap:10px;transition:transform .1s ease,box-shadow .2s ease;box-shadow:0 4px 15px #3b82f64d}.btn-primary:hover{box-shadow:0 6px 20px #3b82f680;transform:translateY(-1px)}.btn-primary:active{transform:translateY(1px)}.divider{display:flex;align-items:center;text-align:center;color:var(--text-muted);font-size:12px;margin:5px 0}.divider:before,.divider:after{content:"";flex:1;border-bottom:1px solid rgba(255,255,255,.1)}.divider span{padding:0 10px}.btn-secondary{background:#ffffff12;border:1px solid rgba(255,255,255,.15);color:var(--text-main);padding:12px;border-radius:8px;font-weight:600;font-size:14px;cursor:pointer;width:100%;transition:background .2s ease}.btn-secondary:hover{background:#ffffff1f}.btn-google{display:flex;justify-content:center;align-items:center;gap:10px;background:#ffffff0d;border:1px solid rgba(255,255,255,.2)}.btn-google:hover{background:#ffffff1f;border-color:#ffffff59}.auth-status{padding:10px 14px;border-radius:8px;font-size:13px;text-align:center}.auth-status.error{background:#ef444433;border:1px solid var(--error-color);color:#fca5a5}.auth-status.success{background:#10b98133;border:1px solid var(--success-color);color:#6ee7b7}.spinner{width:18px;height:18px;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)}}.hidden{display:none!important}