/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4A90D9;
    --primary-dark: #357ABD;
    --primary-light: #6BA5E7;
    --bg-dark: #1a1a2e;
    --bg-panel: #16213e;
    --bg-card: #0f3460;
    --bg-input: #1a1a3e;
    --text-primary: #e4e6eb;
    --text-secondary: #a8adb7;
    --text-muted: #6c757d;
    --border: #2a2a4a;
    --danger: #e74c3c;
    --success: #27ae60;
    --warning: #f39c12;
    --shadow: 0 4px 20px rgba(0,0,0,0.3);
    --radius: 8px;
    --radius-sm: 4px;
    --header-h: 52px;
    --panel-w: 240px;
    --toolbar-h: 60px;
    --canvas-bg: #2c2c3e;
}

html, body {
    height: 100%;
    font-family: 'Inter', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ===== HEADER ===== */
.header {
    height: var(--header-h);
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 100;
}

.header-left, .header-center, .header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-right: 12px;
}

.logo i {
    font-size: 22px;
}

.presentation-title {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-primary);
    font-size: 14px;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    width: 200px;
    transition: all 0.2s;
}

.presentation-title:hover {
    border-color: var(--border);
}

.presentation-title:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-input);
}

.header-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    transition: all 0.2s;
    font-family: inherit;
}

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

.header-btn.primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.header-btn.primary:hover {
    background: var(--primary-dark);
}

.divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 4px;
}

/* ===== MAIN CONTAINER ===== */
.main-container {
    display: flex;
    height: calc(100vh - var(--header-h) - var(--toolbar-h));
}

/* ===== SLIDE PANEL ===== */
.slide-panel {
    width: var(--panel-w);
    min-width: var(--panel-w);
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.add-slide-btn {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: background 0.2s;
}

.add-slide-btn:hover {
    background: var(--primary-dark);
}

.slide-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.slide-thumb {
    position: relative;
    background: #fff;
    border-radius: var(--radius-sm);
    aspect-ratio: 16/9;
    cursor: pointer;
    border: 2px solid transparent;
    overflow: hidden;
    transition: all 0.2s;
    flex-shrink: 0;
}

.slide-thumb:hover {
    border-color: var(--primary-light);
}

.slide-thumb.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(74, 144, 217, 0.3);
}

.slide-thumb-number {
    position: absolute;
    top: 4px;
    left: 4px;
    background: rgba(0,0,0,0.6);
    color: #fff;
    font-size: 10px;
    padding: 1px 5px;
    border-radius: 2px;
    font-weight: 600;
}

.slide-thumb-actions {
    position: absolute;
    top: 4px;
    right: 4px;
    display: none;
    gap: 2px;
}

.slide-thumb:hover .slide-thumb-actions {
    display: flex;
}

.thumb-action-btn {
    width: 20px;
    height: 20px;
    border-radius: 2px;
    background: rgba(0,0,0,0.6);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide-thumb-content {
    width: 100%;
    height: 100%;
    transform-origin: top left;
    pointer-events: none;
}

/* ===== CANVAS AREA ===== */
.canvas-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--canvas-bg);
    overflow: hidden;
}

.canvas-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    padding: 40px;
}

.slide-canvas {
    width: 960px;
    height: 540px;
    background: #ffffff;
    border-radius: 4px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    cursor: default;
}

.canvas-footer {
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    background: var(--bg-panel);
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-secondary);
}

.zoom-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.zoom-btn {
    width: 24px;
    height: 24px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    transition: all 0.2s;
}

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

.zoom-level {
    min-width: 40px;
    text-align: center;
    font-weight: 500;
}

/* ===== PROPERTIES PANEL ===== */
.properties-panel {
    width: 280px;
    min-width: 280px;
    background: var(--bg-panel);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.properties-content {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.panel-toggle {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 12px;
}

.prop-section {
    margin-bottom: 16px;
}

.prop-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
}

.prop-group {
    margin-bottom: 10px;
}

.prop-group label {
    display: block;
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 4px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.prop-group input[type="text"],
.prop-group input[type="number"],
.prop-group select {
    width: 100%;
    padding: 6px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.prop-group input:focus,
.prop-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.prop-group input[type="range"] {
    width: 100%;
    margin-top: 4px;
}

.color-picker-wrap {
    display: flex;
    gap: 6px;
    align-items: center;
}

.color-picker-wrap input[type="color"] {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 2px;
    background: var(--bg-input);
}

.color-text {
    flex: 1;
}

.prop-btn {
    padding: 6px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
    font-family: inherit;
    width: 100%;
    justify-content: center;
    margin-bottom: 4px;
}

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

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

.prop-btn.primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.prop-btn.primary:hover {
    background: var(--primary-dark);
}

.text-style-btns {
    display: flex;
    gap: 4px;
}

.style-btn {
    width: 32px;
    height: 32px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    transition: all 0.2s;
}

.style-btn:hover,
.style-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.prop-group.actions {
    display: flex;
    gap: 6px;
}

.prop-group.actions .prop-btn {
    flex: 1;
}

/* Layout Grid */
.layout-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.layout-btn {
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    cursor: pointer;
    padding: 6px;
    aspect-ratio: 16/10;
    transition: all 0.2s;
}

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

.layout-btn.active {
    border-color: var(--primary);
    background: rgba(74,144,217,0.1);
}

.layout-preview {
    width: 100%;
    height: 100%;
    position: relative;
}

.layout-preview.title .lp-title {
    width: 60%;
    height: 12%;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 35%;
    left: 20%;
}
.layout-preview.title .lp-subtitle {
    width: 40%;
    height: 8%;
    background: var(--border);
    border-radius: 2px;
    position: absolute;
    top: 55%;
    left: 30%;
}

.layout-preview.title-content .lp-title {
    width: 70%;
    height: 12%;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 10%;
    left: 15%;
}
.layout-preview.title-content .lp-body {
    width: 80%;
    height: 55%;
    background: var(--border);
    border-radius: 2px;
    position: absolute;
    top: 30%;
    left: 10%;
}

.layout-preview.two-column .lp-title {
    width: 70%;
    height: 12%;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 8%;
    left: 15%;
}
.layout-preview.two-column .lp-cols {
    position: absolute;
    top: 28%;
    left: 8%;
    width: 84%;
    height: 60%;
    display: flex;
    gap: 4%;
}
.layout-preview.two-column .lp-col {
    flex: 1;
    background: var(--border);
    border-radius: 2px;
}

/* ===== TOOLBAR ===== */
.toolbar {
    height: var(--toolbar-h);
    background: var(--bg-panel);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 0 16px;
}

.tool-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 8px 16px;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 11px;
    transition: all 0.2s;
    font-family: inherit;
}

.tool-btn i {
    font-size: 18px;
}

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

.tool-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ===== SLIDE ELEMENTS ===== */
.slide-element {
    position: absolute;
    cursor: move;
    user-select: none;
}

.slide-element:hover {
    outline: 2px solid var(--primary-light);
    outline-offset: -1px;
}

.slide-element.selected {
    outline: 2px solid var(--primary);
    outline-offset: -1px;
}

.slide-element.selected .resize-handles {
    display: block;
}

.resize-handles {
    display: none;
}

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

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

.rotate-handle {
    position: absolute;
    top: -28px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 18px;
    background: var(--primary);
    border: 2px solid #fff;
    border-radius: 50%;
    cursor: grab;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    color: #fff;
}

.text-element {
    min-width: 50px;
    min-height: 24px;
    padding: 8px;
    outline: none;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: pre-wrap;
}

.text-element:focus {
    cursor: text;
}

.shape-element {
    border-radius: 0;
}

.image-element img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

.icon-element {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.line-element {
    background: transparent !important;
}

.line-element .line-inner {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 3px;
    background: #333;
    transform: translateY(-50%);
}

/* ===== MODALS ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 500px;
    max-width: 90vw;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    animation: modalIn 0.2s ease;
}

.modal-lg {
    width: 700px;
}

@keyframes modalIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
}

/* Export Modal */
.export-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.export-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--text-primary);
    transition: all 0.2s;
    font-family: inherit;
}

.export-option i {
    font-size: 28px;
    color: var(--primary);
}

.export-option span {
    font-weight: 600;
    font-size: 14px;
}

.export-option small {
    font-size: 11px;
    color: var(--text-secondary);
}

.export-option:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.import-section {
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

.import-section h3 {
    font-size: 14px;
    margin-bottom: 10px;
    color: var(--text-secondary);
}

/* Share Modal */
.share-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.share-options {
    margin-bottom: 16px;
}

.share-option {
    margin-bottom: 8px;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
}

.toggle-label input[type="checkbox"] {
    display: none;
}

.toggle-slider {
    width: 44px;
    height: 24px;
    background: var(--border);
    border-radius: 12px;
    position: relative;
    transition: background 0.3s;
    flex-shrink: 0;
}

.toggle-slider::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.3s;
}

.toggle-label input:checked + .toggle-slider {
    background: var(--success);
}

.toggle-label input:checked + .toggle-slider::after {
    transform: translateX(20px);
}

.share-link-section {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 16px;
    border: 1px solid var(--border);
}

.share-link-section label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.share-link-row {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.share-link-input {
    flex: 1;
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--primary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: 'Courier New', monospace;
}

.share-link-row .prop-btn {
    width: auto;
    margin-bottom: 0;
    white-space: nowrap;
}

.share-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.share-actions .prop-btn {
    flex: 1;
    min-width: 100px;
}

.share-stats {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.share-stats small {
    color: var(--text-muted);
    font-size: 11px;
    line-height: 1.5;
}

/* Icon Picker */
.icon-search {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 16px;
    font-family: inherit;
}

.icon-search:focus {
    outline: none;
    border-color: var(--primary);
}

.icon-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 6px;
    max-height: 400px;
    overflow-y: auto;
}

.icon-grid-item {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 20px;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.icon-grid-item:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: scale(1.1);
}

/* ===== PRESENTATION MODE ===== */
.presentation-mode {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 9999;
    display: flex;
    flex-direction: column;
}

.presentation-slide {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.presentation-slide .slide-canvas {
    box-shadow: none;
    border-radius: 0;
}

.presentation-controls {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(0,0,0,0.7);
    padding: 8px 20px;
    border-radius: 30px;
    opacity: 0;
    transition: opacity 0.3s;
}

.presentation-mode:hover .presentation-controls {
    opacity: 1;
}

.presentation-controls button {
    background: transparent;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 16px;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.presentation-controls button:hover {
    background: rgba(255,255,255,0.2);
}

.presentation-controls span {
    color: #fff;
    font-size: 14px;
    min-width: 50px;
    text-align: center;
}

/* ===== CONTEXT MENU ===== */
.context-menu {
    position: fixed;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px;
    z-index: 2000;
    min-width: 180px;
    box-shadow: var(--shadow);
}

.ctx-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 13px;
    width: 100%;
    text-align: left;
    border-radius: var(--radius-sm);
    transition: background 0.15s;
    font-family: inherit;
}

.ctx-item:hover {
    background: var(--primary);
    color: #fff;
}

.ctx-item i {
    width: 16px;
    text-align: center;
    font-size: 12px;
}

.ctx-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 8px;
}

/* ===== TOAST ===== */
.toast-container {
    position: fixed;
    bottom: 80px;
    right: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 12px 20px;
    border-radius: var(--radius);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow);
    animation: toastIn 0.3s ease;
    min-width: 250px;
}

.toast.success {
    border-left: 3px solid var(--success);
}

.toast.error {
    border-left: 3px solid var(--danger);
}

.toast.info {
    border-left: 3px solid var(--primary);
}

@keyframes toastIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes toastOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* ===== TRANSITIONS ===== */
.slide-transition-fade-enter {
    opacity: 0;
}
.slide-transition-fade-enter-active {
    transition: opacity 0.5s;
}

.slide-transition-slide-left-enter {
    transform: translateX(100%);
}
.slide-transition-slide-left-enter-active {
    transition: transform 0.5s;
}

.slide-transition-slide-right-enter {
    transform: translateX(-100%);
}
.slide-transition-slide-right-enter-active {
    transition: transform 0.5s;
}

.slide-transition-slide-up-enter {
    transform: translateY(100%);
}
.slide-transition-slide-up-enter-active {
    transition: transform 0.5s;
}

.slide-transition-zoom-enter {
    transform: scale(0.5);
    opacity: 0;
}
.slide-transition-zoom-enter-active {
    transition: all 0.5s;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .properties-panel {
        width: 240px;
        min-width: 240px;
    }
    .slide-panel {
        width: 180px;
        min-width: 180px;
    }
    .header-btn span {
        display: none;
    }
}

@media (max-width: 768px) {
    .properties-panel {
        display: none;
    }
    .slide-panel {
        width: 120px;
        min-width: 120px;
    }
}