body{background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.login-container{background:#fff;border-radius:28px;padding:48px 40px;width:100%;max-width:420px;box-shadow:0 32px 64px #0003}.logo{text-align:center;margin-bottom:32px}.logo h1{font-size:28px;font-weight:700;color:var(--text-primary);margin-bottom:8px}.logo p{font-size:14px;color:var(--text-secondary)}.form-group{margin-bottom:24px}.form-group label{display:block;font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:8px}.form-group input{width:100%;padding:14px 16px;border:2px solid #e5e7eb;border-radius:12px;font-size:15px;font-family:inherit;transition:all .2s ease;background:#fafafa}.form-group input:focus{outline:none;border-color:var(--accent);background:#fff}.login-btn{width:100%;background:var(--accent);color:#fff;border:none;padding:16px;font-size:16px;font-weight:600;border-radius:14px;cursor:pointer;transition:all .2s ease;font-family:inherit;margin-top:8px}.login-btn:active:not(:disabled){transform:scale(.98)}.login-btn:disabled{background:#d1d5db;cursor:not-allowed}.error-message{background:#fee2e2;color:var(--error);padding:12px 16px;border-radius:10px;font-size:14px;margin-bottom:20px;display:none}.error-message.show{display:block}.hint{text-align:center;margin-top:24px;font-size:13px;color:var(--text-secondary)}.loading{display:inline-block;width:16px;height:16px;border:2px solid white;border-radius:50%;border-top-color:transparent;animation:spin .8s linear infinite;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}