/* ===================================
   Theme Slider Switch
   =================================== */

header {
    position: relative;
}

.theme-switch {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 28px;
    background: #252639;
    border-radius: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 7px;
    z-index: 10;
    border: 2px solid #3a3b52;
    transition: background 0.3s ease, border-color 0.3s ease;
    user-select: none;
}

.theme-switch i {
    font-size: 0.7rem;
    z-index: 2;
    transition: color 0.3s ease;
    line-height: 1;
}

.theme-switch .fa-moon {
    color: #e2e8f0;
}

.theme-switch .fa-sun {
    color: #94a3b8;
}

.theme-switch-thumb {
    position: absolute;
    left: 3px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background: #4ade80;
    border-radius: 50%;
    transition: left 0.3s ease, background 0.3s ease;
    box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

/* Light mode slider */
html:not(.dark) .theme-switch {
    background: #e2e8f0;
    border-color: #bdc3c7;
}

html:not(.dark) .theme-switch .fa-moon {
    color: #bdc3c7;
}

html:not(.dark) .theme-switch .fa-sun {
    color: #f59e0b;
}

html:not(.dark) .theme-switch-thumb {
    left: calc(100% - 23px);
    background: #f59e0b;
}

/* ===================================
   Dark Theme Overrides
   =================================== */

/* Body */
.dark body {
    background: linear-gradient(135deg, #0f1117 0%, #1a1b2e 100%);
}

/* Header */
.dark header {
    background: linear-gradient(135deg, #0f1117 0%, #1a1b2e 100%);
    color: #e2e8f0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.4);
}

.dark header h1 {
    color: #4ade80;
}

.dark header h2 {
    color: #94a3b8;
}

/* Panels */
.dark .left-panel,
.dark .right-panel {
    background: #1a1b2e;
    box-shadow: 0 8px 16px rgba(0,0,0,0.4);
}

.dark .left-panel h3,
.dark .right-panel h3 {
    color: #e2e8f0;
    border-bottom-color: #4ade80;
}

.dark .left-panel::-webkit-scrollbar-thumb,
.dark .right-panel::-webkit-scrollbar-thumb {
    background: #3a3b52;
}

.dark .category-title {
    color: #94a3b8;
}

/* Canvas */
.dark .canvas {
    background: #12131f;
    border-color: #3a3b52;
    box-shadow: 0 8px 16px rgba(0,0,0,0.4);
}

.dark .canvas.drag-over {
    background: #1a2035;
    border-color: #4ade80;
    box-shadow: 0 8px 24px rgba(74, 222, 128, 0.15);
}

.dark .canvas-empty {
    color: #64748b;
}

.dark .canvas-hint {
    color: #475569;
}

/* Preview & Code sections */
.dark .preview-inline,
.dark .code-inline {
    background: #1a1b2e;
    box-shadow: 0 8px 16px rgba(0,0,0,0.4);
}

.dark .preview-inline h3,
.dark .code-inline h3 {
    color: #e2e8f0;
    border-bottom-color: #4ade80;
}

.dark .code-output {
    background: #0d0e18;
    border-color: #2d2e42;
    color: #e2e8f0;
}

/* Special Characters */
.dark .special-chars-section {
    background: #1a1b2e;
    box-shadow: 0 8px 16px rgba(0,0,0,0.4);
}

.dark .special-chars-title {
    color: #e2e8f0;
}

.dark .char-btn {
    background: #252639;
    border-color: #3a3b52;
    color: #e2e8f0;
}

.dark .char-btn:hover {
    background: #2d2e42;
    border-color: #4a4b62;
}

/* Element buttons (left panel) */
.dark .element-btn {
    background: #252639;
    color: #e2e8f0;
    border: 1px solid #3a3b52;
}

.dark .element-btn:hover {
    box-shadow: 0 4px 12px rgba(74, 222, 128, 0.3);
    border-color: #4ade80;
}

/* Element items on canvas */
.dark .element-item {
    background: #252639;
    color: #e2e8f0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.dark .element-item:hover {
    box-shadow: 0 6px 16px rgba(0,0,0,0.5);
}

.dark .element-item.selected {
    background: #22c55e;
    color: #0a0a0a;
    box-shadow: 0 6px 20px rgba(74, 222, 128, 0.35);
}

.dark .element-item.selected .btn-icon {
    background: rgba(0,0,0,0.2);
    color: #0a0a0a;
}

.dark .element-item.selected .btn-icon:hover {
    background: rgba(0,0,0,0.3);
}

/* Properties panel inputs */
.dark .property-label {
    color: #94a3b8;
}

.dark .color-input {
    border-color: #3a3b52;
    background: #252639;
}

.dark .color-value {
    background: #252639;
    border-color: #3a3b52;
    color: #e2e8f0;
}

.dark .color-select {
    background: #252639;
    border-color: #3a3b52;
    color: #e2e8f0;
}

.dark .attr-checkbox input[type="checkbox"] {
    accent-color: #4ade80;
}

.dark .attr-checkbox label {
    color: #e2e8f0;
}

.dark .no-selection {
    color: #64748b;
}

/* Color mode tabs */
.dark .color-mode-tabs button {
    background: #252639;
    border-color: #3a3b52;
    color: #94a3b8;
}

.dark .color-mode-tabs button.active {
    background: #4ade80;
    color: #0f1117;
    border-color: #4ade80;
}

.dark .color-swatch:hover {
    border-color: #e2e8f0;
}

/* Color palette */
.dark .color-palette {
    border-color: #2d2e42;
}

/* Action Buttons */
.dark .btn-primary {
    background: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
    color: #0f1117;
}

.dark .btn-primary:hover {
    box-shadow: 0 4px 12px rgba(74, 222, 128, 0.4);
}

.dark .btn-secondary {
    background: #3a3b52;
    color: #e2e8f0;
}

.dark .btn-secondary:hover {
    background: #4a4b62;
}

.dark .btn-danger {
    background: #dc2626;
    color: white;
}

.dark .btn-danger:hover {
    background: #b91c1c;
}

.dark .copy-btn {
    background: #4ade80;
    color: #0f1117;
}

.dark .copy-btn:hover {
    background: #22c55e;
}

.dark .copy-btn.copied {
    background: #3b82f6;
    color: white;
}

.dark .reset-btn {
    background: #3a3b52;
    color: #e2e8f0;
}

.dark .reset-btn:hover {
    background: #4a4b62;
}

.dark .delete-btn {
    background: #dc2626;
}

.dark .delete-btn:hover {
    background: #b91c1c;
}

/* Panel toggle */
.dark .panel-toggle {
    background: #252639;
    color: #e2e8f0;
}

.dark .panel-toggle:hover {
    background: #2d2e42;
}

/* Mobile close button */
.dark .mobile-close-btn {
    background: #252639;
    color: #e2e8f0;
}

/* Scrollbars */
.dark ::-webkit-scrollbar-track {
    background: #1a1b2e;
}

.dark ::-webkit-scrollbar-thumb {
    background: #3a3b52;
}

.dark ::-webkit-scrollbar-thumb:hover {
    background: #4a4b62;
}

/* About sections */
.dark .about-bash p {
    color: #94a3b8;
}

.dark .about-bash h2 {
    color: #e2e8f0;
}

.dark .about-bash ul,
.dark .about-bash ol {
    color: #94a3b8;
}

.dark .about-bash li {
    color: #94a3b8;
}

.dark .about-bash pre {
    background: #0d0e18;
    border-color: #2d2e42;
}

.dark .about-bash code {
    color: #4ade80;
}

/* Footer */
.dark .site-footer {
    color: #94a3b8;
}

.dark .site-footer .divider {
    color: #4a4b62;
}

/* ===================================
   Responsive overrides for slider
   =================================== */

@media (max-width: 768px) {
    .theme-switch {
        position: relative;
        left: auto;
        top: auto;
        transform: none;
        order: 3;
        margin-top: 4px;
        width: 50px;
        height: 24px;
    }

    .theme-switch i {
        font-size: 0.6rem;
    }

    .theme-switch-thumb {
        width: 18px;
        height: 18px;
    }

    html:not(.dark) .theme-switch-thumb {
        left: calc(100% - 21px);
    }
}

@media (max-width: 480px) {
    .theme-switch {
        width: 46px;
        height: 22px;
        padding: 0 6px;
    }

    .theme-switch i {
        font-size: 0.55rem;
    }

    .theme-switch-thumb {
        width: 16px;
        height: 16px;
    }

    html:not(.dark) .theme-switch-thumb {
        left: calc(100% - 19px);
    }
}