/* =====  Petoko 設計系統 - 統一色彩系統  ===== */
/* 使用全域 CSS 變數，這裡只定義頁面特定樣式 */

/* 基礎設定 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    padding-bottom: 90px;
}

.app-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-actions {
    display: flex;
    align-items: center;
}

.notification-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
    position: relative;
}

.notification-btn:hover {
    background: var(--bg-secondary);
    color: var(--primary);
}

.notification-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--primary);
    color: var(--white);
    font-size: 0.6rem;
    font-weight: 600;
    padding: 0.1rem 0.3rem;
    border-radius: 8px;
    min-width: 12px;
    text-align: center;
    line-height: 1;
}

/* 內容容器 */
.content-container {
    max-width: 480px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 圈圈區域 */
.home-circles-section {
    margin: 0 -1rem;
}

/* Tab 導航 */
.circles-tabs {
    display: flex;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--bg-secondary);
}

.circle-tab {
    flex: 1;
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circle-tab:hover {
    color: var(--primary);
    background: var(--accent);
}

.circle-tab.active {
    color: var(--primary);
    background: var(--accent);
}

.circle-tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

/* 圈圈內容 */
.circle-tab-content {
    display: none;
    padding: 1rem 0;
}

.circle-tab-content.active {
    display: block;
}

.circles-container {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding: 0.5rem 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.circles-container::-webkit-scrollbar {
    display: none;
}

.circle-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: inherit;
    min-width: 70px;
    transition: transform 0.2s ease;
}

.circle-item:hover {
    transform: translateY(-2px);
}

.circle-wrapper {
    position: relative;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 0.5rem;
    border: 3px solid var(--bg-secondary);
    transition: border-color 0.3s ease;
}

.circle-avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.circle-activity {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 16px;
    height: 16px;
    background: var(--success);
    border: 2px solid var(--white);
    border-radius: 50%;
}

.circle-name {
    font-size: 0.8rem;
    font-weight: 500;
    text-align: center;
    color: var(--text-secondary);
    line-height: 1.2;
}

/* 空狀態 */
.empty-circles-state {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-light);
}

.empty-circles-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.empty-circles-state p {
    margin-bottom: 1rem;
    font-size: 1rem;
}


/* 載入狀態指示器 */
.loading-indicator {
    text-align: center;
    padding: 2rem 1rem;
    margin: 1rem 0;
}

.loading-spinner {
    margin-bottom: 1rem;
}

.loading-spinner i {
    font-size: 2rem;
    color: var(--primary);
    animation: spin 1s linear infinite;
}

.loading-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 沒有更多資料提示 */
.no-more-data {
    text-align: center;
    padding: 2rem 1rem;
    margin: 1rem 0;
    color: var(--text-light);
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.no-more-icon {
    margin-bottom: 1rem;
}

.no-more-icon i {
    font-size: 2rem;
    color: var(--success);
}

/* Hover 效果 */
.no-more-data:hover {
    opacity: 1;
}

.no-more-text {
    font-size: 0.9rem;
}

/* 載入成功提示 */


/* 新載入項目動畫 */
.new-item-animation {
    animation: slideInUp 0.6s ease-out;
}

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

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* 空狀態 */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.empty-state p {
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

/* 按鈕樣式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 112, 67, 0.3);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline-primary:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

/* 響應式設計 */
@media (max-width: 480px) {
    .content-container {
        padding: 0 0.5rem;
    }
    
    .home-circles-section {
        margin: 0 -0.5rem;
    }
    
    .circle-tab {
        padding: 0.75rem 1rem;
        font-size: 0.8rem;
    }
    
    .circle-wrapper {
        width: 60px;
        height: 60px;
    }
    
    .circle-name {
        font-size: 0.75rem;
    }
    
    .loading-indicator {
        padding: 1.5rem 0.5rem;
    }
    
    .no-more-data {
        padding: 1.5rem 0.5rem;
    }
}