/* 登入卡片容器 */
.login-container {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px 50px;
    border-radius: 20px;
    width: 420px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    text-align: center;
    backdrop-filter: blur(8px);
    animation: fadeIn 0.6s ease-in-out;
}

/* Header 區塊 */
.login-header {
    margin-bottom: 30px;
}

.logo {
    width: 80px;
    margin: 10px;
}

/* 系統標題 */
.login-header h1 {
    font-size: 22px;
    font-weight: 600;
    color: #0f4c81;
    margin-top: 15px;
}

/* 登入選擇區 */
.login-select, .role-select {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

/* 按鈕樣式 */
.login-btn, .role-btn {
    padding: 14px;
    border-radius: 12px;
    border: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    background: linear-gradient(90deg, #1b6ca8, #145da0);
    color: white;
    letter-spacing: 1px;
}

/* Hover 動畫 */
.login-btn:hover, .role-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(27, 108, 168, 0.4);
    background: linear-gradient(90deg, #145da0, #0f4c81);
}

/* 點擊效果 */
.login-btn:active, .role-btn:active {
    transform: scale(0.98);
}

/* 淡入動畫 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* RWD 手機版 */
@media (max-width: 480px) {
    .login-container {
        width: 90%;
        padding: 30px;
    }

    .logo {
        width: 60px;
    }
}