/* ==========================================
   CSS 變數與色彩主題系統
========================================== */
:root {
    --bg-color: #f5f5f5;
    --card-bg: #ffffff;
    --text-color: #333333;
    --primary-color: #2196F3;
    --primary-dark: #1976D2;
    --tab-bar-bg: #2196F3;
    --border-color: #ccc;
}

/* 質感綠主題 */
body.theme-green {
    --bg-color: #f1f8f5;
    --card-bg: #ffffff;
    --text-color: #2c3e50;
    --primary-color: #4CAF50;
    --primary-dark: #388E3C;
    --tab-bar-bg: #4CAF50;
    --border-color: #c8e6c9;
}

/* 溫馨粉紅主題 */
body.theme-pink {
    --bg-color: #fdf2f4;
    --card-bg: #ffffff;
    --text-color: #4a2c3d;
    --primary-color: #E91E63;
    --primary-dark: #C2185B;
    --tab-bar-bg: #E91E63;
    --border-color: #f8bbd0;
}

/* 極簡深色主題 (Dark Mode) */
body.theme-dark {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --primary-color: #90caf9;
    --primary-dark: #64b5f6;
    --tab-bar-bg: #1f1f1f;
    --border-color: #333333;
}

/* ==========================================
   基礎樣式與變數套用
========================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.tab-bar {
    display: flex;
    background-color: var(--tab-bar-bg);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.tab-btn {
    flex: 1;
    padding: 14px 0;
    text-align: center;
    color: white;
    font-weight: bold;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.2s;
}

.tab-btn.active {
    background-color: var(--primary-dark);
    border-bottom: 3px solid #ffeb3b;
}

.content-container {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.tab-content {
    display: none;
}

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

select, input[type="text"], button {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 15px;
    background: var(--card-bg);
    color: var(--text-color);
}

button.action-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    font-weight: bold;
    cursor: pointer;
}

button.action-btn:active {
    background-color: var(--primary-dark);
}

.filter-group {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.card {
    background: var(--card-bg);
    color: var(--text-color);
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.card-header {
    font-size: 16px;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-meta {
    font-size: 12px;
    color: #777;
    margin-top: 4px;
}

.card-body {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
    display: none;
}

textarea {
    width: 100%;
    height: 250px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    resize: none;
    margin-bottom: 12px;
    background: var(--card-bg);
    color: var(--text-color);
}

.settings-section {
    background: var(--card-bg);
    color: var(--text-color);
    padding: 14px;
    border-radius: 8px;
    margin-bottom: 14px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.settings-section h3 {
    font-size: 15px;
    margin-bottom: 8px;
    color: var(--text-color);
}

/* 卡片右上角三橫線選單樣式 */
.card-action-wrapper {
    position: relative;
    display: inline-block;
}

.menu-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    padding: 4px 10px;
    color: var(--text-color);
}

.menu-btn:hover {
    background: rgba(0,0,0,0.05);
}

.card-dropdown-menu {
    display: none; 
    position: absolute;
    right: 0;
    top: 36px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border-radius: 4px;
    z-index: 100;
    min-width: 90px;
    overflow: hidden;
}

.card-dropdown-menu.show {
    display: block;
}

.card-dropdown-menu button {
    display: block;
    width: 100%;
    padding: 10px 14px;
    text-align: left;
    background: none;
    border: none;
    font-size: 14px;
    cursor: pointer;
    color: var(--text-color);
}

.card-dropdown-menu button:hover {
    background: rgba(0,0,0,0.05);
}

.inline-input-group {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.settings-section.reset-section {
    margin-top: 50px;
    padding-top: 20px;
    padding-bottom: 20px;
    border: 1px dashed #ffcdd2;
}

.settings-section.reset-section button.action-btn {
    margin-top: 8px;
    padding: 14px;
}

.inline-input-group input[type="text"] {
    flex: 1;
    margin-bottom: 0;
}

.inline-input-group button.action-btn {
    width: auto;
    white-space: nowrap;
    margin-bottom: 0;
    padding: 0 16px;
}

/* Toast 頂部自動消失訊息樣式 */
#toast-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
    width: 90%;
    max-width: 360px;
}

.toast-item {
    background: rgba(33, 33, 33, 0.92);
    color: #fff;
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 14px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    transform: translateY(-10px);
    pointer-events: auto;
}

.toast-item.show {
    opacity: 1;
    transform: translateY(0);
}