.banner {
    position: relative;
    background: url('https://res.cloudinary.com/robinsupernice/image/upload/v1738914924/housecare/banner_bg3.jpg') no-repeat center center;
    background-size: cover;
    min-height: 120px;
    width: 100%;
    align-content: center;
}

.footer {
    background: linear-gradient(120deg, var(--secondary-color), var(--primary-color), var(--secondary-color));
    color: white;
    padding: 10px 0;
    text-align: center;
    margin-top: 20px;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3); 
    z-index: 1;
} 

.banner-content {
    position: relative;
    z-index: 2; /* 確保內容在遮罩層上方 */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
}

.site-title {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.8rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5); /* 為標題添加陰影效果 */
}

.nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-menu li a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5); /* 為導航文字添加陰影效果 */
}

.nav-menu li a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-menu li a.btn {
    background-color: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu li a.btn:hover {
    background-color: rgba(255, 255, 255, 0.25);
}


.navi-menubar {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--banner-color);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.menu {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    /*filter: brightness(1.2); *//* 1.2 表示增加 20% 的亮度 */
    background: linear-gradient(120deg, var(--secondary-color), var(--primary-color), var(--secondary-color));
}

.menu-item {
    position: relative;
    padding: 10px;
    color: white;
    cursor: pointer;
    margin-right: 10px;
    white-space: nowrap; /* 防止文字換行 */
}

.menu-item:hover {
    background-color: var(--banner-color);
}

.submenu {
    display: none;
    list-style-type: none;
    position: absolute;
    top: 100%;
    left: 0;
    padding: 0;
    margin: 0;
    background-color: #f9f9f9;
    box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.2);
    z-index: 5;
    min-width: 200px;
}

.menu-item:hover > .submenu {
    display: block;
}

.submenu li {
    padding: 10px;
    background-color: #fff;
}

.submenu li:hover {
    background-color: #ddd;
}

.submenu a {
    text-decoration: none;
    color: #000;
    display: block;
}

/* New styles for nested submenu */
.menu-item .submenu .menu-item {
    position: relative;
}

.menu-item .submenu .menu-item:hover > .nested-submenu {
    display: block;
}

.nested-submenu {
    display: none;
    position: absolute;
    top: 0;
    left: 100%;
    background-color: #f9f9f9;
    box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.2);
    min-width: 200px;
    z-index: 5;
}

.error-message {
    margin-bottom: 20px;
    font-size: 1.2rem;
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
    padding: 10px;
    border-radius: 5px;
    text-align: center;
}
.success-message {
    margin-bottom: 20px;
    font-size: 1.2rem;
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
    padding: 10px;
    border-radius: 5px;
    text-align: center;
}
.message {
    padding: 10px;
    margin: 10px 0;
    border-radius: 4px;
    transition: opacity 0.5s ease-in-out;
}
.fade-out {
    opacity: 0;
}

.main-content {
    padding: 20px 0;
}

/* Grid Layout 和容器樣式 */
.container {
    margin-right: auto;
    margin-left: auto;
    padding-right: 1rem;
    padding-left: 1rem;
}

.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin-bottom: 20px;
}

.card-title {
    font-size: 18px;
    margin: 0 0 15px 0;
    color: #2c3e50;
}

.scroll-buttons {
    position: fixed;
    right: 20px;
    top: 70%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.scroll-button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background-color: var(--primary-color);
    filter: brightness(120%);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s, transform 0.2s;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.scroll-button:hover {
    background-color: var(--primary-color);
    filter: brightness(140%);
    transform: scale(1.1);
}

.scroll-button:active {
    transform: scale(0.95);
}

/* ------ message animation ------ */

.message-container {
    position: fixed;
    top: 200px;  /* 改為頂部固定距離 */
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;  /* 訊息之間的間距 */
    z-index: 9999;
    pointer-events: none;
}

.message {
    padding: 15px 30px;
    border-radius: 12px;
    background-color: #fff;
    color: #333;
    font-family: Arial, sans-serif;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    transform: translateX(100%);
    opacity: 0;
    transition: transform 0.5s ease-out, opacity 0.5s ease-out;
    pointer-events: auto;  /* 允許訊息可以被點擊 */
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 300px;
    max-width: 500px;
}

.message.show {
    transform: translateX(0);
    opacity: 1;
}

.message.hide {
    transform: translateX(100vw);
    opacity: 0;
}

/* 關閉按鈕 */
.message .close-btn {
    margin-left: 15px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.message .close-btn:hover {
    opacity: 1;
}

/* 訊息類型樣式 */
.message.success {
    background-color: #E7FFE8FF;
    border: 2px solid #4CAF50;
}

.message.error {
    background-color: #FFD0CDFF;
    border : 2px solid #f44336;
}

.message.info {
    background-color: #C5E3FBFF;
    border : 2px solid #2196F3;
}