:root {
    --bg-color: #1c1c1e;
    --surface-color: #2c2c2e;
    --primary-color: #0a84ff;
    --primary-hover-color: #3f9dff;
    --secondary-color: #5856d6;
    --text-color: #f2f2f7;
    --text-secondary-color: #8e8e93;
    --border-color: #3a3a3c;
    --success-color: #34c759;
    --error-color: #ff3b30;
    --panel-bg: #222224;
}

/* --- 全域 & 基礎樣式 --- */
body { 
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; 
    background-color: var(--bg-color); 
    color: var(--text-color); 
    margin: 0;
    overflow-x: hidden; 
}

html, body, #app {
    height: 100%;
}

.hidden { display: none !important; }
.btn { border: none; border-radius: 8px; padding: 10px 20px; font-size: 1rem; cursor: pointer; transition: all 0.2s ease; font-weight: 500; }
.btn-primary { background-color: var(--primary-color); color: white; }
.btn-primary:hover { background-color: var(--primary-hover-color); transform: translateY(-1px); }
.btn-primary:disabled { background-color: #2b3a5b; color: #888; cursor: not-allowed; }
.btn-secondary { background-color: var(--border-color); color: white; }
.btn-secondary:hover { background-color: #4a4a4c; }

/* --- 頂部導覽列 --- */
.main-header {
    background-color: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0 24px;
    height: 60px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
}
.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}
.header-logo {
    height: 32px;
}
.main-nav {
    display: flex;
    gap: 5px;
}
.nav-tab {
    color: var(--text-secondary-color);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-weight: 500;
}
.nav-tab:hover {
    color: var(--text-color);
    background-color: var(--surface-color);
}
.nav-tab.active {
    color: var(--primary-color);
    background-color: rgba(10, 132, 255, 0.15);
}
.user-actions {
    display: flex;
    align-items: center;
}
.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}
.user-info .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
}
.user-info #user-name {
    font-weight: 600;
}

/* --- 主內容區域 --- */
main#app-content {
    padding-top: 80px;
    padding-bottom: 2rem;
}

#login-view {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

#login-view .container {
    max-width: 500px;
}


/* --- 上傳視圖樣式 --- */
#upload-view {
    padding: 2rem;
    display: flex;
    justify-content: center;
}

.container { 
    width: 100%; 
    max-width: 900px; 
    background-color: var(--surface-color); 
    border-radius: 12px; 
    padding: 2rem; 
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); 
}

h1, h2 { text-align: center; margin-top: 0; color: var(--text-color); }
h2 { margin-bottom: 1.5rem; }
#upload-area { border: 2px dashed var(--border-color); border-radius: 8px; padding: 4rem 2rem; text-align: center; transition: all 0.3s ease; cursor: pointer; }
#upload-area.dragover { border-color: var(--primary-color); background-color: rgba(10, 132, 255, 0.1); }
#upload-area .small-text { color: var(--text-secondary-color); font-size: 0.9rem; }

#image-queue-container { text-align: center; }

/* 【核心修改】讓佇列和「新增」按鈕在同一行顯示 */
.queue-and-add-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); 
    gap: 1.5rem; 
    margin-top: 1rem;
    margin-bottom: 2rem; 
}
#image-queue { 
    display: contents; /* 讓子項目直接成為父層 grid 的一部分 */
}
.queue-item { 
    background-color: var(--bg-color); 
    border: 1px solid var(--border-color); 
    border-radius: 8px; 
    padding: 1rem; 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    text-align: center; 
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.queue-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

.queue-item-preview { width: 100px; height: 100px; object-fit: cover; border-radius: 6px; margin-bottom: 0.5rem; }
.queue-item-name { font-size: 0.8rem; word-break: break-all; margin-bottom: 0.5rem; color: var(--text-secondary-color); width: 100%; height: 2.4em; overflow: hidden; }
.queue-item-status { font-size: 0.8rem; font-weight: bold; margin: 0.5rem 0; }
.status-pending { color: var(--text-secondary-color); } .status-edited { color: #ff9500; } .status-uploading { color: var(--primary-color); } .status-done { color: var(--success-color); }
.status-error { color: var(--error-color); font-size: 0.75rem; word-break: break-word; margin-top: 4px; max-height: 50px; overflow: auto; text-align: left; background: rgba(255, 59, 48, 0.1); padding: 5px; border-radius: 4px; }
.queue-item-actions { margin-top: auto; }
.queue-item-actions button { font-size: 0.8rem; padding: 5px 10px; margin: 0 2px; }
.result-input { width: calc(100% - 10px); background-color: var(--bg-color); border: 1px solid var(--border-color); color: var(--text-color); border-radius: 4px; padding: 5px; font-size: 0.75rem; margin-top: 5px; }
.brand-logo { display: block; max-width: 200px; height: auto; margin: 0 auto 1.5rem; }
#upload-all-button {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
}

/* 【核心修改】「新增更多」區塊的樣式 */
.add-more-item {
    cursor: pointer;
    border-style: dashed;
    justify-content: center;
}
.add-more-item:hover, .add-more-item.dragover {
    border-color: var(--primary-color);
    background-color: rgba(10, 132, 255, 0.05);
}
.add-more-content span {
    font-size: 3rem;
    color: var(--text-secondary-color);
    line-height: 1;
}
.add-more-content p {
    margin: 0.5rem 0 0 0;
    color: var(--text-secondary-color);
}

/* --- 歷史紀錄視圖 --- */
#history-view {
    padding: 2rem;
    justify-content: center;
    align-items: flex-start;
    display: flex;
}
#history-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}
.history-item {
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
}
.history-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.4);
}
.history-item-thumbnail {
    width: 100%;
    height: 150px;
    object-fit: cover;
    cursor: pointer;
}
.history-item-info {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}
.history-item-filename {
    font-size: 0.9rem;
    font-weight: 500;
    word-break: break-all;
    margin-bottom: 0.5rem;
}
.history-item-date {
    font-size: 0.8rem;
    color: var(--text-secondary-color);
    margin-bottom: 1rem;
}
.history-item-actions {
    margin-top: auto;
    display: flex;
    gap: 8px;
    align-items: center;
}
.history-item-actions .action-group {
    display: flex;
    gap: 8px;
    flex-grow: 1;
}
.history-item-actions .action-group .btn {
    flex-grow: 1;
    font-size: 0.85rem;
    padding: 8px 10px;
}
.btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary-color);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 5px;
    line-height: 1;
    transition: color 0.2s;
}
.btn-icon:hover {
    color: var(--text-color);
}
.btn-icon.favorite {
    color: #ffcc00; /* 已收藏的顏色 */
}

/* --- 歷史紀錄控制項樣式 --- */
.history-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}
.history-controls h2 { margin: 0; text-align: left; }
.history-filters { display: flex; gap: 10px; }
.btn-filter {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary-color);
    padding: 6px 14px;
    font-size: 0.9rem;
}
.btn-filter.active, .btn-filter:hover {
    background-color: var(--surface-color);
    color: var(--text-color);
    border-color: var(--primary-color);
}

/* --- 分頁器樣式 --- */
.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 2rem;
    user-select: none;
}
.pagination-numbers {
    display: flex;
    gap: 8px;
}
.btn-pager {
    min-width: 32px;
    height: 32px;
    padding: 0 10px;
    background-color: var(--surface-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
    font-weight: 500;
}
.btn-pager:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}
.btn-pager:disabled {
    color: var(--text-secondary-color);
    cursor: not-allowed;
    opacity: 0.5;
}
.btn-pager.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}
.btn-pager.ellipsis {
    border: none;
    background: none;
    cursor: default;
    opacity: 1;
    color: var(--text-secondary-color);
}
.btn-pager.ellipsis:hover {
    color: var(--text-secondary-color);
}


/* --- 編輯器視圖樣式 --- */
#editor-view { display: grid; grid-template-areas: "header header" "sidebar main"; grid-template-columns: 280px 1fr; grid-template-rows: 60px 1fr; width: 100vw; height: 100vh; background-color: var(--bg-color); position: fixed; top: 0; left: 0; z-index: 1001; }
.editor-top-bar { grid-area: header; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; background-color: var(--panel-bg); border-bottom: 1px solid var(--border-color); }
#editor-filename { color: var(--text-secondary-color); font-size: 0.9rem; font-weight: 400; }
.top-bar-actions { display: flex; gap: 10px; }
.editor-tool-panel { grid-area: sidebar; background-color: var(--panel-bg); padding: 20px; overflow-y: auto; border-right: 1px solid var(--border-color); }
.tool-group { margin-bottom: 25px; }
.tool-group-title { margin: 0 0 15px 0; font-size: 1rem; font-weight: 600; color: var(--text-secondary-color); border-bottom: 1px solid var(--border-color); padding-bottom: 10px; }
.tool-group-content { display: flex; flex-direction: column; gap: 15px; }
.tool-group-content.scrollable { max-height: 300px; overflow-y: auto; overflow-x: hidden; padding-right: 5px; }
.tool-row { display: flex; gap: 10px; }
.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tool-btn-icon { flex: 1; background-color: var(--surface-color); color: var(--text-color); border: 1px solid var(--border-color); border-radius: 6px; padding: 10px; cursor: pointer; transition: background-color 0.2s; text-align: center; }
.tool-btn-icon:hover { background-color: var(--border-color); }
.tool-btn-aspect { background-color: var(--surface-color); color: var(--text-color); border: 1px solid var(--border-color); border-radius: 6px; padding: 10px; cursor: pointer; transition: background-color 0.2s, border-color 0.2s; }
.tool-btn-aspect.active { background-color: var(--primary-color); border-color: var(--primary-color); color: white; }
.tool-group label { font-size: 0.9rem; color: var(--text-secondary-color); }
#filters-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.filter-item { cursor: pointer; text-align: center; }
.filter-preview { width: 100%; padding-bottom: 100%; background-size: cover; background-position: center; border: 2px solid transparent; border-radius: 6px; transition: border-color 0.2s; margin-bottom: 5px; }
.filter-item:hover .filter-preview { border-color: var(--text-secondary-color); }
.filter-item.active .filter-preview { border-color: var(--primary-color); }
.filter-item span { font-size: 0.8rem; }
.editor-canvas-area { grid-area: main; display: flex; justify-content: center; align-items: center; padding: 20px; overflow: auto; }
.canvas-wrapper { max-width: 100%; max-height: 100%; box-shadow: 0 0 20px rgba(0,0,0,0.5); }
.editor-tool-panel::-webkit-scrollbar,
.tool-group-content.scrollable::-webkit-scrollbar { width: 6px; }
.editor-tool-panel::-webkit-scrollbar-track,
.tool-group-content.scrollable::-webkit-scrollbar-track { background: transparent; }
.editor-tool-panel::-webkit-scrollbar-thumb,
.tool-group-content.scrollable::-webkit-scrollbar-thumb { background-color: var(--border-color); border-radius: 3px; }

/* --- Modal 樣式 (for Share) --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background-color: var(--surface-color);
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transform: scale(1);
    transition: transform 0.3s ease;
}

.modal-overlay.hidden .modal-content {
    transform: scale(0.9);
}

.modal-content h2 {
    margin-top: 0;
    text-align: left;
}

.modal-content p {
    color: var(--text-secondary-color);
    margin-bottom: 1rem;
}

.modal-content textarea {
    width: 100%;
    box-sizing: border-box;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 8px;
    padding: 10px;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    resize: vertical;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}