/* ═══════════════════════════════════════════════════════════════════════════
   Arka – AI Diagram Generator v2.1.0
   Theme: Monochrome, Brutalist, High-Contrast
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── CSS Custom Properties ──────────────────────────────────────────────── */
:root {
    --bg: #000000;
    --fg: #ffffff;
    --fg-muted: #888888;
    --border: #222222;
    --border-light: #444444;
    --accent: #E52E2E;
    /* Signature Nothing Red */
    --accent-hover: #ff4444;

    --font-body: 'Space Grotesk', sans-serif;
    --font-logo: 'Orbitron', sans-serif;
    --font-mono: 'Space Mono', monospace;

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-pill: 9999px;

    --sidebar-width: 380px;

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

/* ── Resets ──────────────────────────────────────────────────────────────── */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--fg);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

/* ── Typography ─────────────────────────────────────────────────────────── */
h1,
h2,
h3 {
    font-weight: 500;
    text-transform: uppercase;
}

label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--fg-muted);
    margin-bottom: 8px;
}

/* ── Scrollbar Styling ──────────────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 4px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

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

/* ── Animated Background ────────────────────────────────────────────────── */
.bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: radial-gradient(var(--border-light) 1px, transparent 1px);
    background-size: 24px 24px;
    z-index: 0;
    opacity: 0.3;
    pointer-events: none;
}

button {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border-light);
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    -webkit-tap-highlight-color: transparent !important;
}

a {
    -webkit-tap-highlight-color: transparent !important;
}

button:hover {
    background: var(--fg);
    color: var(--bg);
}

button:active {
    transform: scale(0.98);
    transition-duration: 0.1s;
}

button:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

button.primary {
    background: var(--accent);
    color: var(--fg);
    border-color: var(--accent);
}

button.primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: var(--fg);
}

input[type="text"],
textarea,
select {
    width: 100%;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-light);
    color: var(--fg);
    padding: 16px;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color 0.2s;
    backdrop-filter: blur(10px);
    outline: none;
    appearance: none;
}

textarea {
    resize: vertical;
}

input[type="text"]:focus,
textarea:focus,
select:focus {
    border-color: var(--fg);
}

input::placeholder,
textarea::placeholder {
    color: var(--border-light);
}

/* ── App Layout ─────────────────────────────────────────────────────────── */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
}

/* ── Sidebar ────────────────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100vh;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    z-index: 10;
    transition: transform var(--transition-base);
    overflow-y: auto;
}

.sidebar-header {
    padding: 32px 24px 24px;
    border-bottom: 1px solid var(--border);
}

.logo-text h1 {
    font-family: var(--font-logo);
    font-weight: 700;
    font-size: 2.8rem;
    letter-spacing: 2px;
    margin-bottom: 4px;
    color: var(--fg);
}

.logo-text span {
    font-size: 0.75rem;
    color: var(--fg-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ── Mode Toggle ────────────────────────────────────────────────────────── */
.mode-toggle-section {
    padding: 16px 24px 0;
    flex-shrink: 0;
}

.mode-toggle {
    display: flex;
    position: relative;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    padding: 3px;
    gap: 0;
}

.mode-toggle-indicator {
    position: absolute;
    top: 3px;
    left: 3px;
    width: calc(50% - 3px);
    height: calc(100% - 6px);
    background: var(--accent);
    border-radius: var(--radius-pill);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 0;
    box-shadow: 0 0 12px rgba(229, 46, 46, 0.3);
}

.mode-toggle-indicator.right {
    transform: translateX(100%);
}

.mode-toggle-btn {
    flex: 1;
    position: relative;
    z-index: 1;
    padding: 8px 12px;
    font-size: 0.75rem;
    font-family: var(--font-body);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--fg-muted);
    background: transparent;
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
}

.mode-toggle-btn:hover {
    color: var(--fg);
    background: transparent;
}

.mode-toggle-btn.active {
    color: var(--fg);
}

.mode-toggle-btn svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

/* ── Prompt Section ─────────────────────────────────────────────────────── */
.prompt-section {
    padding: 24px;
    flex-shrink: 0;
}

.prompt-input {
    height: 120px;
    margin-bottom: 12px;
}

.generate-btn {
    width: 100%;
}

.generate-btn .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    display: none;
}

.generate-btn.loading .spinner {
    display: block;
}

.generate-btn.loading .btn-text {
    display: none;
}

.btn-loading-text {
    display: none;
}

.generate-btn.loading .btn-loading-text {
    display: block;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ── Quick Examples ─────────────────────────────────────────────────────── */
.examples-section {
    padding: 0 24px 24px;
    flex-shrink: 0;
}

.example-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.example-chip {
    padding: 6px 12px;
    font-size: 0.75rem;
    border-color: var(--border);
    color: var(--fg-muted);
    text-transform: none;
    letter-spacing: 0;
}

/* ── Refine Section ─────────────────────────────────────────────────────── */
.refine-section {
    padding: 0 24px 24px;
    flex-shrink: 0;
}

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

.refine-input {
    border-radius: var(--radius-pill) !important;
    padding: 10px 16px !important;
}

.refine-btn {
    white-space: nowrap;
    min-width: 80px;
}

/* ── Properties Panel ──────────────────────────────────────────────────── */
.properties-panel {
    padding: 0 24px 24px;
    border-top: 1px solid var(--border);
    margin-top: 8px;
    padding-top: 16px;
}

.prop-group {
    margin-bottom: 14px;
}

.prop-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--fg-muted);
    margin-bottom: 6px;
}

.prop-value {
    font-size: 0.85rem;
    color: var(--fg);
    padding: 6px 0;
    word-break: break-word;
}

.prop-shape-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.prop-shape-btn {
    padding: 4px 10px;
    font-size: 0.7rem;
    border-radius: 6px;
    text-transform: none;
    letter-spacing: 0;
    color: var(--fg-muted);
    border-color: var(--border);
}

.prop-shape-btn.active {
    border-color: var(--fg);
    color: var(--fg);
    background: rgba(255, 255, 255, 0.08);
}

.prop-shape-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--fg);
}

.prop-color-row {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.prop-color-swatch {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 2px solid transparent;
    padding: 0;
    cursor: pointer;
    transition: transform 0.15s ease, border-color 0.15s ease;
}

.prop-color-swatch:hover {
    transform: scale(1.2);
    border-color: var(--fg);
    background: inherit !important;
    color: inherit;
}

.prop-size-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.prop-size-btn {
    width: 28px;
    height: 28px;
    padding: 0;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--fg-muted);
    border-color: var(--border);
}

.prop-size-btn:hover {
    color: var(--fg);
    background: rgba(255, 255, 255, 0.05);
}

.prop-size-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--fg-muted);
    min-width: 70px;
    text-align: center;
}

.prop-action-btn {
    width: 100%;
    margin-bottom: 8px;
    padding: 8px 16px;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.prop-action-btn.danger {
    border-color: #ef4444;
    color: #ef4444;
}

.prop-action-btn.danger:hover {
    background: #ef4444;
    color: #fff;
}

/* ── Main Canvas Area ───────────────────────────────────────────────────── */
.main-area {
    flex: 1;
    position: relative;
    display: flex;
    flex-direction: column;
}

/* ── Top Navigation Bar ─────────────────────────────────────────────────── */
.top-nav-bar {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 30;
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ── Floating Toolbar ───────────────────────────────────────────────────── */
.toolbar {
    position: absolute;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    padding: 6px 12px;
    border-radius: var(--radius-pill);
    z-index: 20;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    transition: box-shadow 0.3s ease;
}

.toolbar:hover {
    box-shadow: 0 6px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 4px;
}

.theme-download-tray {
    display: contents;
}

.zoom-controls {
    display: flex;
    align-items: center;
    gap: 4px;
}

.toolbar-divider {
    width: 1px;
    height: 20px;
    background: var(--border-light);
    margin: 0 4px;
}

.icon-btn {
    width: 34px;
    height: 34px;
    padding: 0;
    border-radius: 50%;
    border: 1px solid transparent;
    color: var(--fg-muted);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.icon-btn:hover {
    border-color: var(--border-light);
    background: rgba(255, 255, 255, 0.06);
    color: var(--fg);
    transform: scale(1.08);
}

.icon-btn:active {
    transform: scale(0.96);
    background: rgba(255, 255, 255, 0.1);
    transition-duration: 0.1s;
}

.icon-btn svg {
    width: 16px;
    height: 16px;
    transition: transform 0.15s ease;
}

.zoom-level {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    min-width: 40px;
    text-align: center;
    color: var(--fg-muted);
}

/* ── Canvas Container ──────────────────────────────────────────────────── */
.canvas-container {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    cursor: grab;
}

.canvas-container:active {
    cursor: grabbing;
}

/* SVG Flowchart Styles */
.flowchart-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.node-group {
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.node-group rect,
.node-group circle,
.node-group ellipse,
.node-group polygon,
.node-group path {
    filter: drop-shadow(4px 4px 0px rgba(0, 0, 0, 0.4));
    stroke-width: 2px !important;
    rx: 8px;
    /* Rounded corners for rectangles */
    ry: 8px;
    transition: all 0.2s ease-in-out;
}

.node-group:hover {
    cursor: pointer;
}

.node-group:hover rect,
.node-group:hover polygon,
.node-group:hover circle,
.node-group:hover ellipse,
.node-group:hover path {
    stroke-width: 3px !important;
    filter: drop-shadow(6px 6px 0px rgba(255, 255, 255, 0.2)) brightness(1.1);
    transform: translateY(-2px);
}

.edge-path {
    transition: stroke-width 0.15s ease;
}

.edgePath .path {
    stroke-width: 2px !important;
    filter: drop-shadow(2px 2px 2px rgba(0, 0, 0, 0.3));
}

.edge-group:hover .edge-path {
    stroke-width: 4px !important;
}

.selection-indicator {
    animation: dash-rotate 2s linear infinite;
}

@keyframes dash-rotate {
    0% {
        stroke-dashoffset: 0;
    }

    100% {
        stroke-dashoffset: 18;
    }
}

/* ── Inline Editor ─────────────────────────────────────────────────────── */
.inline-editor {
    font-family: Inter, system-ui, sans-serif !important;
}

/* ── Empty State ────────────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    color: var(--fg-muted);
    max-width: 400px;
    position: absolute;
    pointer-events: none;
    z-index: 5;
}

.empty-state .bracket-text {
    font-family: var(--font-mono);
    font-size: 4rem;
    color: var(--border-light);
    margin-bottom: 16px;
    display: block;
}

.empty-state h2 {
    font-size: 1.2rem;
    color: var(--fg);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.empty-state p {
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.empty-state .hint-text {
    font-size: 0.75rem;
    color: var(--border-light);
    margin-top: 16px;
    font-family: var(--font-mono);
}

/* ── Status Bar ─────────────────────────────────────────────────────────── */
.status-bar {
    position: absolute;
    bottom: 24px;
    left: 24px;
    right: 24px;
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--fg-muted);
    text-transform: uppercase;
    pointer-events: none;
    z-index: 15;
}

.status-left,
.status-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--fg-muted);
    border-radius: 50%;
    display: inline-block;
}

.status-dot.active {
    background: var(--fg);
    box-shadow: 0 0 10px var(--fg);
}

.status-dot.loading {
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

.status-dot.error {
    background: #ffaa00;
}

/* ── Modals ─────────────────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg);
    border: 1px solid var(--border-light);
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.modal-body {
    padding: 24px;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-body .form-group {
    margin-bottom: 16px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.modal-footer button {
    padding: 10px 20px;
}

.modal-cancel {
    border-color: var(--border-light);
    color: var(--fg-muted);
}

.modal-cancel:hover {
    color: var(--fg);
}

/* ── Saved Flowcharts List ──────────────────────────────────────────────── */
#saved-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.saved-item {
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.saved-item:hover {
    border-color: var(--fg);
}

.saved-item-name {
    font-size: 0.9rem;
}

.saved-item-date {
    font-size: 0.7rem;
    color: var(--fg-muted);
    font-family: var(--font-mono);
}

.saved-item-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.saved-item-btn {
    padding: 6px 12px;
    font-size: 0.7rem;
    border-radius: 6px;
}

.saved-item-btn.delete {
    width: 28px;
    height: 28px;
    padding: 0;
    border-radius: 50%;
    border-color: transparent;
    color: var(--fg-muted);
}

.saved-item-btn.delete:hover {
    background: #ef4444;
    color: #fff;
    border-color: #ef4444;
}

.primary:hover {
    background: var(--fg);
    color: var(--bg);
}

.secondary:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* ── Dropdowns ──────────────────────────────────────────────────────────── */
.toast-container {
    position: fixed;
    bottom: 60px;
    right: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    background: var(--bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-pill);
    color: var(--fg);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    animation: toast-in 0.3s ease-out;
    display: flex;
    align-items: center;
    gap: 8px;
}

.toast.success {
    border-color: #22c55e;
}

.toast.error {
    border-color: #ef4444;
}

.toast-icon {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.toast-exit {
    animation: toast-out 0.3s ease-in forwards;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toast-out {
    from {
        opacity: 1;
        transform: translateY(0);
    }

    to {
        opacity: 0;
        transform: translateY(16px);
    }
}

/* Mobile-specific toast from top */
@keyframes toast-in-top {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toast-out-top {
    from {
        opacity: 1;
        transform: translateY(0);
    }

    to {
        opacity: 0;
        transform: translateY(40px);
    }
}

/* ── Download Dropdown ──────────────────────────────────────────────────── */
.dropdown-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 180px;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 6px;
    display: none;
    flex-direction: column;
    gap: 2px;
    z-index: 100;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
    animation: dropdown-in 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    max-height: 400px;
    overflow-y: auto;
}

.dropdown-menu::-webkit-scrollbar {
    width: 6px;
}

.dropdown-menu::-webkit-scrollbar-track {
    background: transparent;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.dropdown-menu::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.dropdown-menu::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.4);
}

.dropdown-menu.active {
    display: flex;
}

@keyframes dropdown-in {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.96);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border: none;
    border-radius: 6px;
    font-size: 0.8rem;
    text-transform: none;
    letter-spacing: 0.3px;
    color: var(--fg-muted);
    background: transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    width: 100%;
    justify-content: flex-start;
    position: relative;
    border: none;
}

.dropdown-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--fg);
}

.dropdown-item:active {
    background: rgba(255, 255, 255, 0.12);
    transform: scale(0.98);
    transition-duration: 0.05s;
}

.dropdown-item svg {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
}

.dropdown-item:hover svg {
    transform: scale(1.1);
}

/* ── Code Editor Modal ─────────────────────────────────────────────────── */
.code-editor-modal-content {
    max-width: 700px !important;
    width: 90vw;
}

.code-editor-body {
    padding: 16px 24px 24px !important;
}

.code-editor-hint {
    font-size: 0.8rem;
    color: var(--fg-muted);
    margin-bottom: 12px;
    font-family: var(--font-mono);
    letter-spacing: 0.3px;
}

.code-editor-textarea {
    width: 100%;
    min-height: 320px;
    max-height: 55vh;
    background: rgba(0, 0, 0, 0.7) !important;
    border: 1px solid var(--border-light) !important;
    border-radius: var(--radius-sm) !important;
    color: #a5f3fc !important;
    font-family: 'Space Mono', 'Fira Code', 'Consolas', monospace !important;
    font-size: 0.85rem !important;
    line-height: 1.6 !important;
    padding: 16px !important;
    resize: vertical;
    tab-size: 4;
    white-space: pre;
    overflow-x: auto;
    transition: border-color 0.2s;
}

.code-editor-textarea:focus {
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 2px rgba(229, 46, 46, 0.15);
    outline: none;
}

.code-editor-textarea::placeholder {
    color: var(--border-light) !important;
    font-style: italic;
}

/* ── Edge Drag Indicator ───────────────────────────────────────────────── */
.edge-drag-handle {
    cursor: move;
    transition: r 0.15s ease, fill 0.15s ease;
}

.edge-drag-handle:hover {
    r: 7;
    fill: var(--accent, #E52E2E);
}

/* ── Glass Button Utility ──────────────────────────────────────────────── */
.glass-btn {
    width: 44px;
    height: 44px;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--fg);
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.glass-btn:active {
    transform: scale(0.96);
    background: rgba(255, 255, 255, 0.15);
    transition-duration: 0.1s;
}

.sidebar-toggle {
    display: none;
    position: fixed;
    bottom: 96px;
    right: 80px;
    z-index: 50;
    box-shadow: none;
}

.hamburger-icon {
    width: 26px;
    height: 18px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    margin: auto;
    flex-shrink: 0;
}

.hamburger-icon span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--fg);
    border-radius: 2px;
    /* No transition in default state to prevent visual collapse */
    transition: none;
    transform-origin: center;
}

/* Animation removed per user request */
/* .sidebar-toggle.open .hamburger-icon span { transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); } */
/* .sidebar-toggle.open .hl-top { transform: translateY(7.5px) rotate(45deg); } */
/* .sidebar-toggle.open .hl-mid { opacity: 0; } */
/* .sidebar-toggle.open .hl-bot { transform: translateY(-7.5px) rotate(-45deg); } */

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar {
        position: absolute;
        transform: translateX(-100%);
        z-index: 100010;
        /* Make sure it's above the canvas, top-nav, and toolbar */
        width: 85%;
        min-width: unset;
        max-width: 320px;
    }

    /* Mode dropdown inside sidebar: regular inline dropdown on mobile (same as desktop) */
    #mode-dropdown-wrapper .dropdown-menu {
        position: absolute !important;
        top: calc(100% + 4px) !important;
        left: 0 !important;
        right: 0 !important;
        bottom: auto !important;
        width: 100% !important;
        min-width: unset !important;
        max-height: 50vh !important;
        overflow-y: auto;
        background: rgba(10, 10, 15, 0.98) !important;
        border: 1px solid var(--border-light) !important;
        border-radius: var(--radius-sm) !important;
        padding: 6px !important;
        z-index: 100020 !important;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.7) !important;
        animation: dropdown-in 0.15s ease-out forwards !important;
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .mobile-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(4px);
        z-index: 100009;
        /* Above canvas, below sidebar */
        opacity: 0;
        transition: opacity var(--transition-base);
    }

    .mobile-overlay.active {
        display: block;
        opacity: 1;
    }

    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Unified style for all individual floating buttons to perfectly match the .toolbar base */
    .glass-btn {
        background: rgba(0, 0, 0, 0.2) !important;
        backdrop-filter: blur(8px) !important;
        -webkit-backdrop-filter: blur(8px) !important;
        border: 1px solid var(--border) !important;
        border-radius: var(--radius-pill) !important;
        color: var(--fg-muted) !important;
        transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
    }

    .hamburger-icon span {
        background-color: var(--fg-muted) !important;
    }

    .glass-btn:hover {
        background: rgba(255, 255, 255, 0.06) !important;
        border-color: var(--border-light) !important;
        color: var(--fg) !important;
    }

    .glass-btn:hover .hamburger-icon span {
        background-color: var(--fg) !important;
    }

    .glass-btn:active {
        transform: scale(0.96) !important;
        background: rgba(255, 255, 255, 0.1) !important;
        transition-duration: 0.1s !important;
    }

    .status-bar {
        display: none;
        /* Hide status bar on small screens to save space */
    }

    .top-nav-bar {
        position: fixed;
        top: auto;
        bottom: 96px;
        right: 24px;
        z-index: 100005;
        /* Ensures profile dropdown shows over toolbar */
    }

    .toolbar-left,
    .toolbar-right {
        display: contents;
    }

    .toolbar-divider {
        display: none !important;
    }

    .mobile-tray-break {
        display: block !important;
        flex-basis: 100%;
        height: 0;
        margin: 0;
    }

    .theme-download-tray {
        position: absolute;
        bottom: 72px;
        right: 120px;
        left: auto;
        background: transparent;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        border: none;
        padding: 0;
        border-radius: 0;
        box-shadow: none;
        z-index: 100005;
        display: flex;
        align-items: center;
        gap: 12px;
        height: 44px;
    }

    .theme-download-tray .toolbar-btn {
        width: 44px !important;
        height: 44px !important;
        background: rgba(0, 0, 0, 0.2) !important;
        backdrop-filter: blur(8px) !important;
        -webkit-backdrop-filter: blur(8px) !important;
        border: 1px solid var(--border) !important;
        border-radius: var(--radius-pill) !important;
        box-shadow: none !important;
        color: var(--fg-muted) !important;
        padding: 0 !important;
        justify-content: center !important;
        transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
    }

    .theme-download-tray .toolbar-btn:hover {
        background: rgba(255, 255, 255, 0.06) !important;
        border-color: var(--border-light) !important;
        color: var(--fg) !important;
    }

    .theme-download-tray .toolbar-btn:active {
        transform: scale(0.96) !important;
        background: rgba(255, 255, 255, 0.1) !important;
        transition-duration: 0.1s !important;
    }

    /* Toast from top on mobile */
    .toast-container {
        top: 24px;
        bottom: auto;
        right: 24px;
        left: 24px;
        align-items: center;
    }

    .toast {
        animation: toast-in-top 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .toast-exit {
        animation: toast-out-top 0.4s ease-in forwards;
    }

    .toolbar {
        position: fixed;
        top: auto;
        bottom: 24px;
        left: 16px;
        right: 16px;
        transform: none;
        flex-wrap: nowrap;
        justify-content: space-between;
        border-radius: var(--radius-md);
        padding: 8px 16px;
        width: auto;
        max-width: none;
        gap: 4px;
        overflow: visible;
        margin-top: 0;
        z-index: 100000;
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        background: rgba(0, 0, 0, 0.2);
    }

    #btn-undo,
    #btn-redo,
    #btn-delete-selected,
    #btn-clear-canvas,
    #btn-auto-layout,
    #btn-code-view,
    #btn-save,
    #btn-load,
    #zoom-fit {
        order: 3;
    }

    .mobile-break-row-1 {
        order: 2;
    }

    .zoom-controls {
        display: none !important;
    }

    #btn-delete-selected,
    #btn-code-view {
        display: none !important;
    }

    #btn-edit-text,
    #theme-dropdown-wrapper,
    #download-dropdown-wrapper {
        order: 1;
    }

    .dropdown-wrapper .dropdown-menu {
        position: absolute;
        top: auto;
        bottom: calc(100% + 8px);
        left: 0;
        right: auto;
        width: max-content;
        min-width: 160px;
        background: rgba(10, 10, 15, 0.98);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-md);
        padding: 6px;
        z-index: 9999;
        max-height: 40vh;
        overflow-y: auto;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
        animation: dropdown-in 0.15s ease-out forwards;
    }

    .dropdown-wrapper .dropdown-item {
        padding: 10px 14px;
        font-size: 0.9rem;
    }

    /* Override specifically for the Profile menu bottom-sheet */
    #profile-dropdown-wrapper .dropdown-menu {
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        top: auto !important;
        right: auto !important;
        width: 100vw !important;
        min-width: 100vw !important;
        background: rgba(10, 10, 15, 0.98) !important;
        border: none !important;
        border-top: 1px solid var(--border-light) !important;
        border-radius: 20px 20px 0 0 !important;
        padding: 24px 16px 32px 16px !important;
        z-index: 100005 !important;
        max-height: 80vh !important;
        box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.8) !important;
        animation: slide-up-mobile 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards !important;
    }

    @keyframes slide-up-mobile {
        from {
            transform: translateY(100%);
            opacity: 0;
        }

        to {
            transform: translateY(0);
            opacity: 1;
        }
    }

    #btn-theme {
        width: auto !important;
        padding: 0 16px !important;
        height: 44px !important;
        justify-content: center !important;
        border-radius: var(--radius-pill) !important;
        background: rgba(0, 0, 0, 0.2) !important;
        border: 1px solid var(--border) !important;
        backdrop-filter: blur(8px) !important;
        -webkit-backdrop-filter: blur(8px) !important;
        color: var(--fg-muted) !important;
        transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
    }

    #btn-theme:hover {
        background: rgba(255, 255, 255, 0.06) !important;
        border-color: var(--border-light) !important;
        color: var(--fg) !important;
    }

    #btn-theme:active {
        transform: scale(0.96) !important;
        background: rgba(255, 255, 255, 0.1) !important;
        transition-duration: 0.1s !important;
    }

    #btn-theme-text {
        display: inline-block !important;
        /* show theme text on mobile */
    }

    .toolbar .icon-btn,
    .theme-download-tray .icon-btn {
        width: 38px;
        height: 38px;
    }

    .toolbar-divider {
        display: none;
    }

    .zoom-level {
        display: none;
        /* Hide percentage text on mobile to save space */
    }
}

/* ── Floating Color Tray Animation ──────────────────────────────────────── */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-6px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ── Floating Color Tray used by editing ────────────────────────────────── */
#floating-color-tray {
    white-space: nowrap;
}