/* ============================================
   LCARS UI Generator — Stylesheet
   ============================================ */

:root {
    /* LCARS palette */
    --lcars-orange: #FF9900;
    --lcars-tangerine: #FF7700;
    --lcars-butterscotch: #FFCC66;
    --lcars-sunflower: #FFCC00;
    --lcars-lavender: #CC99CC;
    --lcars-violet: #9977AA;
    --lcars-lilac: #CC66FF;
    --lcars-peach: #FF9966;
    --lcars-blue: #99CCFF;
    --lcars-ice: #CCDDFF;
    --lcars-sky: #6688CC;
    --lcars-red: #CC6666;
    --lcars-magenta: #CC6699;
    --lcars-beige: #DDBBAA;
    --lcars-tomato: #EE5500;
    --lcars-white: #FFFFFF;

    /* App chrome */
    --bg-dark: #0A0A0A;
    --bg-panel: #111111;
    --bg-panel-header: #1A1A1A;
    --border-color: #2A2A2A;
    --text-primary: #FF9900;
    --text-secondary: #AAAAAA;
    --text-muted: #666666;
    --accent: #FF9900;
    --danger: #CC6666;

    /* Sizes */
    --toolbar-height: 56px;
    --panel-width: 320px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Antonio', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    user-select: none;
}

/* ---- Toolbar ---- */
#toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--toolbar-height);
    background: var(--bg-panel);
    border-bottom: 2px solid var(--lcars-orange);
    padding: 0 16px;
}

.app-title {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--lcars-orange);
}

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

.toolbar-btn {
    background: var(--bg-panel-header);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 6px 18px;
    border-radius: 14px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.toolbar-btn:hover {
    background: #222;
    border-color: var(--lcars-orange);
}

.toolbar-btn.accent {
    background: var(--lcars-orange);
    color: #000;
    border-color: var(--lcars-orange);
}

.toolbar-btn.accent:hover {
    background: var(--lcars-tangerine);
}

.toolbar-separator {
    width: 1px;
    height: 28px;
    background: var(--border-color);
    margin: 0 6px;
}

#zoom-level {
    font-size: 16px;
    color: var(--text-secondary);
    min-width: 50px;
    text-align: center;
}

/* ---- Main layout ---- */
#main-content {
    display: flex;
    height: calc(100vh - var(--toolbar-height));
}

/* ---- Side panels ---- */
#elements-panel,
#properties-panel {
    width: var(--panel-width);
    background: var(--bg-panel);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    flex-shrink: 0;
}

#properties-panel {
    border-right: none;
    border-left: 1px solid var(--border-color);
}

.panel-header {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--lcars-butterscotch);
    padding: 14px 18px 10px;
    background: var(--bg-panel-header);
    border-bottom: 2px solid var(--lcars-butterscotch);
}

/* ---- Elements palette ---- */
.element-category {
    border-bottom: 1px solid var(--border-color);
}

.element-category-title {
    font-size: 14px;
    letter-spacing: 2px;
    color: var(--text-muted);
    padding: 12px 18px 6px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.element-category-title:hover {
    color: var(--text-secondary);
}

.element-category-title::after {
    content: '▼';
    font-size: 10px;
    transition: transform 0.2s;
}

.element-category.collapsed .element-category-title::after {
    transform: rotate(-90deg);
}

.element-category.collapsed .element-items {
    display: none;
}

.element-items {
    padding: 6px 12px 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.element-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 90px;
    padding: 8px 6px;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: grab;
    transition: border-color 0.15s, background 0.15s;
}

.element-item:hover {
    border-color: var(--lcars-orange);
    background: rgba(255, 153, 0, 0.08);
}

.element-item.dragging {
    opacity: 0.5;
}

.element-thumb {
    width: 72px;
    height: 48px;
    border-radius: 4px;
    margin-bottom: 5px;
    overflow: hidden;
}

.element-thumb canvas {
    width: 100%;
    height: 100%;
}

.element-name {
    font-size: 12px;
    letter-spacing: 1px;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.2;
}

/* ---- Canvas workspace ---- */
#canvas-workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    background: #090909;
    overflow: hidden;
}

#canvas-container {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

#lcars-canvas,
#interaction-canvas {
    position: absolute;
    image-rendering: pixelated;
}

#interaction-canvas {
    cursor: crosshair;
}

#canvas-info {
    display: flex;
    justify-content: space-between;
    padding: 6px 16px;
    font-size: 14px;
    color: var(--text-muted);
    background: var(--bg-panel);
    border-top: 1px solid var(--border-color);
}

/* ---- Properties panel ---- */
.prop-section {
    padding: 12px 18px;
    border-bottom: 1px solid var(--border-color);
}

.prop-section-title {
    font-size: 14px;
    letter-spacing: 2px;
    color: var(--lcars-lavender);
    margin-bottom: 10px;
    margin-top: 4px;
}

.prop-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.prop-row label {
    font-size: 14px;
    color: var(--text-secondary);
    letter-spacing: 1px;
    flex-shrink: 0;
    width: 110px;
}

.prop-row input[type="number"],
.prop-row input[type="text"],
.prop-row select {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 15px;
    padding: 5px 10px;
    border-radius: 4px;
    width: 120px;
    outline: none;
}

.prop-row input[type="number"]:focus,
.prop-row input[type="text"]:focus,
.prop-row select:focus {
    border-color: var(--lcars-orange);
}

.prop-row input[type="color"] {
    width: 48px;
    height: 30px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    background: transparent;
    padding: 0;
}

.prop-row input[type="checkbox"] {
    accent-color: var(--lcars-orange);
    width: 20px;
    height: 20px;
}

.prop-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.prop-btn {
    background: var(--bg-panel-header);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 13px;
    letter-spacing: 1px;
    padding: 6px 14px;
    border-radius: 10px;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

.prop-btn:hover {
    border-color: var(--lcars-orange);
    color: var(--text-primary);
}

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

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

/* ---- Color swatches ---- */
#color-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.color-swatch {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color 0.15s, transform 0.1s;
}

.color-swatch:hover {
    border-color: #FFF;
    transform: scale(1.15);
}

.color-swatch.active {
    border-color: #FFF;
}

/* ---- Layers list ---- */
#layers-list {
    max-height: 200px;
    overflow-y: auto;
}

.layer-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    transition: background 0.1s;
}

.layer-item:hover {
    background: rgba(255, 153, 0, 0.08);
}

.layer-item.selected {
    background: rgba(255, 153, 0, 0.15);
    color: var(--text-primary);
}

.layer-color-dot {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    flex-shrink: 0;
}

.layer-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.layer-visibility {
    opacity: 0.5;
    cursor: pointer;
    font-size: 13px;
}

.layer-visibility:hover {
    opacity: 1;
}

/* ---- Modal ---- */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--bg-panel);
    border: 2px solid var(--lcars-orange);
    border-radius: 16px;
    width: 640px;
    max-width: 90vw;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: var(--bg-panel-header);
    border-bottom: 2px solid var(--lcars-orange);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 22px;
    cursor: pointer;
    line-height: 1;
}

.modal-close-btn:hover {
    color: var(--lcars-orange);
}

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

.export-options {
    display: flex;
    gap: 12px;
}

.export-btn {
    flex: 1;
    background: var(--bg-panel-header);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 12px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: border-color 0.15s, background 0.15s;
}

.export-btn:hover {
    border-color: var(--lcars-orange);
    background: rgba(255, 153, 0, 0.06);
}

.export-icon {
    font-size: 28px;
    color: var(--lcars-orange);
    font-weight: 700;
}

.export-label {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 1px;
    font-family: 'Antonio', sans-serif;
}

.export-desc {
    font-size: 14px;
    color: var(--text-muted);
    letter-spacing: 1px;
    font-family: 'Antonio', sans-serif;
}

#export-preview {
    margin-top: 16px;
}

#export-preview pre {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 14px;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 14px;
    color: var(--text-secondary);
    max-height: 400px;
    overflow: auto;
    white-space: pre;
    tab-size: 4;
}

.export-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    justify-content: flex-end;
}

/* ---- Scrollbar styling ---- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

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

/* ---- Drag preview ---- */
.drag-preview {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.8;
}

/* ---- Welcome overlay ---- */
.welcome-content {
    background: var(--bg-panel);
    border: 2px solid var(--lcars-orange);
    border-radius: 20px;
    width: 560px;
    max-width: 90vw;
    overflow: hidden;
}

.welcome-header {
    background: var(--bg-panel-header);
    padding: 24px 30px 20px;
    border-bottom: 3px solid var(--lcars-butterscotch);
}

.welcome-bar {
    height: 8px;
    background: var(--lcars-orange);
    border-radius: 4px;
    margin-bottom: 16px;
}

.welcome-header h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--lcars-orange);
    margin: 0;
}

.welcome-subtitle {
    font-size: 14px;
    letter-spacing: 3px;
    color: var(--lcars-butterscotch);
    margin-top: 4px;
}

.welcome-body {
    padding: 24px 30px;
}

.welcome-section {
    margin-bottom: 20px;
}

.welcome-section h2 {
    font-size: 14px;
    letter-spacing: 2px;
    color: var(--lcars-lavender);
    margin-bottom: 10px;
}

.welcome-section ul {
    list-style: none;
    padding: 0;
}

.welcome-section li {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 4px 0 4px 16px;
    position: relative;
}

.welcome-section li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--lcars-orange);
    font-size: 8px;
    top: 8px;
}

.welcome-section li strong {
    color: var(--text-primary);
    font-weight: 700;
}

.welcome-shortcuts {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 6px 16px;
    align-items: center;
}

.shortcut-key {
    font-size: 13px;
    font-weight: 700;
    color: var(--lcars-butterscotch);
    letter-spacing: 1px;
    background: var(--bg-dark);
    padding: 3px 10px;
    border-radius: 6px;
    text-align: center;
}

.welcome-shortcuts > span:not(.shortcut-key) {
    font-size: 14px;
    color: var(--text-secondary);
}

.welcome-engage {
    display: block;
    margin: 10px auto 0;
    padding: 10px 40px !important;
    font-size: 18px !important;
    border-radius: 20px !important;
}

.welcome-alpha {
    background: var(--bg-dark);
    border: 1px solid var(--lcars-sky);
    border-radius: 10px;
    padding: 14px 18px;
}

.welcome-alpha p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.welcome-alpha a {
    color: var(--lcars-sky);
    text-decoration: none;
    font-weight: 700;
}

.welcome-alpha a:hover {
    text-decoration: underline;
}

/* ---- View-only / Tab-lock banners ---- */
#viewonly-banner,
#tablock-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 10px 16px;
    background: var(--bg-panel-header);
    border-bottom: 2px solid var(--lcars-sky);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--lcars-sky);
    flex-shrink: 0;
}

#tablock-banner {
    border-bottom-color: var(--lcars-red);
    color: var(--lcars-red);
}

.tablock-sub {
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 1px;
    color: var(--text-muted);
}

/* ---- Confirm dialog ---- */
.confirm-content {
    width: 480px;
}

#confirm-message {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.confirm-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.toolbar-btn.danger-btn {
    color: var(--danger);
    border-color: var(--danger);
}

.toolbar-btn.danger-btn:hover {
    background: rgba(204, 102, 102, 0.12);
}

/* ---- Recent layouts ---- */
.recent-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 8px;
    transition: border-color 0.15s, background 0.15s;
}

.recent-item:hover {
    border-color: var(--lcars-orange);
    background: rgba(255, 153, 0, 0.06);
}

.recent-item-draft {
    border-color: var(--lcars-butterscotch);
}

.recent-item-info {
    flex: 1;
}

.recent-item-id {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.recent-item-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.recent-item-actions {
    display: flex;
    gap: 6px;
}

/* ---- RECENT button indicator ---- */
#btn-recent {
    position: relative;
}

#btn-recent.has-history::after {
    content: '';
    position: absolute;
    top: 4px;
    right: 4px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--lcars-orange);
}

/* ---- Read-only UI state ---- */
.app-readonly #elements-panel .element-item,
.app-readonly #properties-panel input,
.app-readonly #properties-panel select,
.app-readonly #properties-panel .prop-btn,
.app-readonly #color-swatches .color-swatch {
    pointer-events: none;
    opacity: 0.5;
}