/* 顏色變數定義 */
:root {
    --primary-bg: #010010;
    --secondary-bg: #181818;
    --card-bg: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #f0f0f0;
    --text-muted: #888;
    --border-color: #455b76;
    --accent-color: #6887ae;
    --accent-hover: #cd2f47;
    --success-color: #4ade80;
    --warning-color: #fbbf24;
    --error-color: #ef4444;
    --shadow: rgba(0, 0, 0, 0.3);
    --gradient-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    --hover-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: var(--primary-bg);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 右側選單 */
.sidebar-menu {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.menu-item {
    border-radius: 10px;
    padding: 15px 15px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 5px;
    backdrop-filter: blur(10px);
    box-shadow: var(--card-shadow);

}

.menu-item:hover {
    background: var(--card-bg);
    transform: translateX(-5px) scale(1.05);
    box-shadow: var(--hover-shadow);
}

.menu-icon {
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.menu-text {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
}

/* 搜尋彈出框 */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: fadeIn 0.3s ease;
}

.search-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    width: 90%;
    max-width: 500px;
    box-shadow: var(--hover-shadow);
}

.search-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.search-header h3 {
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 28px;
    cursor: pointer;
    transition: color 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close-btn:hover {
    color: var(--accent-hover);
    background: rgba(255, 255, 255, 0.1);
}

.search-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.search-form select,
.search-form input,
.search-form button {
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--secondary-bg);
    color: var(--text-primary);
    font-size: 16px;
    transition: all 0.3s ease;
}

.search-form select:focus,
.search-form input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(104, 135, 174, 0.1);
}

.search-form button {
    background: var(--accent-color);
    color: var(--text-primary);
    border: none;
    cursor: pointer;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.search-form button:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

/* 主要內容區域 */
.Pmain-container {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    padding: 40px 20px;
}

.header {
    text-align: center;
    margin-bottom: 40px;
}

.header h1 {
    font-size: 36px;
    font-weight: 700;
    background: var(--gradient-bg);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.post-count {
    color: var(--text-muted);
    font-size: 16px;
}

/* 載入動畫 */
.loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 貼文卡片 */
.post-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 25px;
    margin-bottom: 20px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
    animation: slideUp 0.6s ease;
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
    border-color: var(--accent-color);
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-bg);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.post-card:hover::before {
    opacity: 1;
}

.post-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    object-fit: cover;
    transition: transform 0.3s ease;
}

.avatar:hover {
    transform: scale(1.1);
}

.user-info {
    flex-grow: 1;
}

.username {
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.post-time {
    color: var(--text-muted);
    font-size: 14px;
}

.anonymous-badge {
    background: var(--warning-color);
    color: var(--primary-bg);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.post-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
    line-height: 1.4;
}

.post-content {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.post-content a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.post-content a:hover {
    color: var(--accent-hover);
    border-bottom-color: var(--accent-hover);
}

/* 圖片展示 */
.post-images {
    display: grid;
    gap: 22px;
    margin-bottom: 15px;
    border-radius: 15px;
    overflow-x: scroll;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none;  /* IE 10+ */
}


.post-images.single {
    grid-template-columns: 1fr;
}

.post-images.double {
    grid-template-columns: 1fr 1fr;
}

.post-images.triple {
    grid-template-columns: repeat(3, 1fr);
}

.post-image {
    width: auto;
    height: 200px;
    object-fit: cover;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 10px;
}

.post-image:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-muted);
}

.hash-info {
    font-family: 'Courier New', monospace;
    background: var(--secondary-bg);
    padding: 4px 8px;
    border-radius: 6px;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 載入更多 */
.load-more,
.no-more {
    text-align: center;
    margin: 40px 0;
}

.load-more button {
    background: var(--accent-color);
    color: var(--text-primary);
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.load-more button:hover {
    background: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(104, 135, 174, 0.3);
}

.load-more button:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
}

.no-more div {
    color: var(--text-muted);
    font-style: italic;
    font-size: 16px;
}

/* 響應式設計 */
@media (max-width: 1024px) {
    .Pmain-container {
        padding-right: 20px;
    }
    
    .sidebar-menu {
        right: 20px;
    }
}

@media (max-width: 768px) {

    .post-card{

            border: 0px solid var(--border-color);

    }


    .publish-section{

        margin-top: 60px;
    }

    
        /* 調整主要內容 */
        .main-content {
            padding: 5px;
        }

    .Pmain-container {
        padding: 0px 0px;
        
    }
    
    .sidebar-menu {
        position: fixed;
        bottom: 30px;
        right: 20px;
        top: auto;
        transform: none;
        flex-direction: row;
        background: var(--card-bg);
        border-radius: 25px;
        padding: 10px;
        border: 1px solid var(--border-color);
    }
    
    .menu-item {
        border: none;
        background: transparent;
        padding: 10px;
        border-radius: 50%;
    }
    
    .menu-text {
        display: none;
    }
    
    .header h1 {
        font-size: 28px;
    }
    
    .post-card {
        padding: 20px;
        margin-bottom: 15px;
    }
    

    
    .search-container {
        margin: 20px;
        width: calc(100% - 40px);
    }
}

@media (max-width: 480px) {

    .post-header {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .avatar {
        width: 40px;
        height: 40px;
    }
    
    .post-title {
        font-size: 18px;
    }
    
    .post-content {
        font-size: 15px;
    }
}

/* 圖片放大疊加層樣式 */
#imageOverlay {
    position: fixed; /* 固定定位，覆蓋整個視窗 */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7); /* 半透明黑色背景 */
    display: flex; /* 使用 Flexbox 實現置中 */
    justify-content: center; /* 水平置中 */
    align-items: center; /* 垂直置中 */
    z-index: 1000; /* 確保在最上層 */
    cursor: zoom-out; /* 鼠標顯示為縮小，表示點擊可關閉 */
    transition: background-color 0.3s ease; /* 背景色漸變 */
}

#imageOverlay #enlargedImage {
    max-width: 500px; /* 限制最大寬度為視窗的90% */
    max-height: 70%; /* 限制最大高度為視窗的90% */
    object-fit: contain; /* 保持圖片原始比例，並適應容器 */
    transform: scale(1); /* 初始狀態不放大 */
    transition: transform 0.3s ease-out; /* 圖片放大縮小的過渡效果 */
    cursor: zoom-out; /* 鼠標顯示為縮小 */
}

#imageOverlay #enlargedImage.active {
    transform: scale(2); /* 點擊後放大兩倍 */
}

/* 讓貼文中的圖片可點擊（視覺提示） */
.post-image {
    cursor: zoom-in; /* 鼠標顯示為放大，表示圖片可點擊放大 */
}

img {
    max-height: 500px !important;
    max-width: 1500px !important;

}










/*留言*/

.post-actions {
    display: flex;
    gap: 10px;
    margin: 15px 0;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.comment-btn, .expand-btn {
    padding: 8px 16px;
    border: 1px solid #01001000;
    border-radius: 20px;
    background: var(--secondary-bg);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: var(--card-shadow);
}

.comment-btn:hover {
    background: var(--card-bg);
    color: var(--text-primary);
    box-shadow: var(--hover-shadow);
    border-color: var(--success-color);
    transform: translateY(-2px);
}

.expand-btn:hover {
    background: var(--success-color);
    color: var(--text-primary);
    border-color: var(--success-color);
    box-shadow: var(--hover-shadow);
    transform: translateY(-2px);
}

/* 額外的互動效果 */
.comment-btn:active, .expand-btn:active {
    transform: translateY(0);
    box-shadow: var(--card-shadow);
}

/* 焦點狀態 */
.comment-btn:focus, .expand-btn:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}