* { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #fff8f1;
            min-height: 100vh;
            margin: 0;
        }

        .login-shell {
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            padding: 24px 16px 32px;
        }

        .login-logo {
            display: inline-flex;
            align-items: center;
            width: fit-content;
            margin-bottom: 16px;
        }

        .login-logo img {
            height: 42px;
            width: auto;
        }

        .login-card-wrap {
            display: flex;
            justify-content: center;
            align-items: center;
            flex: 1;
        }
        
        .login-container {
            background: white;
            border-radius: 16px;
            box-shadow: 0 20px 60px rgba(255, 146, 177, 0.2);
            padding: 60px 40px;
            max-width: 420px;
            width: 100%;
            text-align: center;
        }
        
        .login-header {
            margin-bottom: 40px;
        }
        
        .login-header h1 {
            color: #ff92b1;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        
        .login-header p {
            color: #666;
            font-size: 14px;
            line-height: 1.6;
        }
        
        .login-content {
            margin-bottom: 30px;
        }
        
        .message {
            padding: 12px;
            border-radius: 8px;
            margin-bottom: 20px;
            font-size: 13px;
            display: none;
        }
        
        .message.error {
            background: #ffcdd2;
            color: #c62828;
            border: 1px solid #f44336;
            display: block;
        }
        
        .message.warning {
            background: #fff3cd;
            color: #856404;
            border: 1px solid #ffc107;
            display: block;
        }
        
        .login-btn {
            width: 100%;
            padding: 14px 20px;
            background: linear-gradient(135deg, #ff92b1 0%, #ff6b8a 100%);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(255, 146, 177, 0.3);
        }
        
        .login-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none;
        }
        
        .info-text {
            color: #999;
            font-size: 12px;
            line-height: 1.6;
            margin-top: 20px;
        }
        
        @media (max-width: 480px) {
            .login-shell {
                padding-top: 20px;
            }

            .login-logo img {
                height: 36px;
            }

            .login-container {
                padding: 40px 20px;
            }
            .login-header h1 {
                font-size: 24px;
            }
        }