/* 全局樣式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #475569;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* 導航欄 */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: 1920px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.75rem;
}

.nav-menu {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

/* 主容器 */
.main-container {
    max-width: 1920px;
    margin: 0 auto;
    padding: 2rem;
}

/* 視圖切換 */
.view-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.view-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 區塊標題 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* 按鈕樣式 */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--border-color);
}

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

.btn-danger:hover {
    background: #dc2626;
}

/* 項目網格 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.project-thumbnail {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-thumbnail i {
    font-size: 3rem;
    color: white;
    opacity: 0.8;
}

.project-info {
    padding: 1.25rem;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.project-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.project-actions {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    background: var(--bg-tertiary);
    border: none;
    border-radius: 0.375rem;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.icon-btn:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.icon-btn.delete:hover {
    background: var(--danger-color);
    color: white;
}

/* 模板過濾器 */
.template-filters {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    border-radius: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

/* 模板網格 */
.templates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.template-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.template-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.template-preview {
    width: 100%;
    height: 160px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.template-badge {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
}

.template-info {
    padding: 1rem;
}

.template-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.template-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.template-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 素材標籤 */
.asset-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

/* 素材內容 */
.assets-content {
    margin-top: 2rem;
}

.assets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.asset-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.asset-item:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.asset-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.asset-name {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 編輯器佈局 */
.editor-layout {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-color);
    z-index: 2000;
    display: flex;
    flex-direction: column;
}

.editor-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.editor-header h2 {
    flex: 1;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
}

.editor-actions {
    display: flex;
    gap: 0.5rem;
}

.editor-workspace {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* 側邊欄 */
.editor-sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.sidebar-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-tab {
    flex: 1;
    padding: 1rem 0.5rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
}

.sidebar-tab i {
    font-size: 1.25rem;
}

.sidebar-tab:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.sidebar-tab.active {
    background: var(--bg-color);
    color: var(--primary-color);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

/* 畫布區域 */
.editor-canvas {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-color);
}

.canvas-toolbar {
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.zoom-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.zoom-level {
    min-width: 50px;
    text-align: center;
    color: var(--text-secondary);
}

.tool-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.tool-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.canvas-size select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

.canvas-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    overflow: auto;
}

.canvas-stage {
    background: #1a1a2e;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    width: 960px;
    height: 540px;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.canvas-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    gap: 1rem;
}

.canvas-placeholder i {
    font-size: 4rem;
    opacity: 0.5;
}

/* 屬性面板 */
.properties-panel {
    width: 280px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    padding: 1.5rem;
    overflow-y: auto;
}

.properties-panel h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.properties-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.no-selection {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-muted);
    gap: 1rem;
}

.no-selection i {
    font-size: 3rem;
    opacity: 0.5;
}

/* 時間軸 */
.timeline-container {
    height: 200px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.timeline-toolbar {
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.timeline-time {
    color: var(--text-secondary);
    font-size: 0.875rem;
    min-width: 100px;
}

.timeline-zoom {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

.timeline-zoom i {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.timeline-zoom input[type="range"] {
    width: 100px;
}

.timeline-tracks {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

/* 模態框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 3000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-large {
    max-width: 900px;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    transition: color 0.3s ease;
}

.close-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* 表單樣式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* 預覽播放器 */
.preview-body {
    padding: 0 !important;
}

.preview-player {
    width: 100%;
    height: 500px;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-controls {
    padding: 1rem;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.preview-timeline {
    flex: 1;
}

.preview-timeline input[type="range"] {
    width: 100%;
}

/* 場景卡片 */
.scene-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.scene-item:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.scene-item.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* 響應式設計 */
@media (max-width: 1200px) {
    .editor-sidebar,
    .properties-panel {
        width: 240px;
    }
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .projects-grid,
    .templates-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .editor-sidebar,
    .properties-panel {
        display: none;
    }

    .canvas-stage {
        width: 100%;
        height: auto;
        aspect-ratio: 16/9;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* 滾動條樣式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* 空狀態 */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

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

/* 拖拽相關樣式 */
.dragging {
    opacity: 0.7;
    cursor: grabbing !important;
    z-index: 1000;
}

.multi-selected {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.resize-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--primary-color);
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
}

.resize-nw { top: -5px; left: -5px; cursor: nw-resize; }
.resize-ne { top: -5px; right: -5px; cursor: ne-resize; }
.resize-sw { bottom: -5px; left: -5px; cursor: sw-resize; }
.resize-se { bottom: -5px; right: -5px; cursor: se-resize; }
.resize-n { top: -5px; left: 50%; transform: translateX(-50%); cursor: n-resize; }
.resize-s { bottom: -5px; left: 50%; transform: translateX(-50%); cursor: s-resize; }
.resize-e { right: -5px; top: 50%; transform: translateY(-50%); cursor: e-resize; }
.resize-w { left: -5px; top: 50%; transform: translateY(-50%); cursor: w-resize; }

.selection-box {
    position: absolute;
    border: 2px dashed var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
    pointer-events: none;
}

/* 動畫樣式 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translate(-100%, -50%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translate(0%, -50%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

@keyframes slideInTop {
    from {
        opacity: 0;
        transform: translate(-50%, -100%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

@keyframes slideInBottom {
    from {
        opacity: 0;
        transform: translate(-50%, 0%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.3);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

@keyframes zoomOut {
    from {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    to {
        opacity: 0;
        transform: translate(-50%, -50%) scale(1.5);
    }
}

@keyframes rotate {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.1); }
}

@keyframes shake {
    0%, 100% { transform: translate(-50%, -50%) translateX(0); }
    25% { transform: translate(-50%, -50%) translateX(-10px); }
    75% { transform: translate(-50%, -50%) translateX(10px); }
}

@keyframes bounce {
    0%, 100% { transform: translate(-50%, -50%) translateY(0); }
    50% { transform: translate(-50%, -50%) translateY(-20px); }
}

@keyframes flash {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* 轉場選項樣式 */
.transition-option {
    transition: all 0.3s ease;
}

.transition-option:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color) !important;
    transform: translateY(-2px);
}

.transition-option.active {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary-color) !important;
}