/* ===================================================
   SVG Viewer & Editor Tool Styles
   Theme Variables & Light Mode Support
   =================================================== */

:root {
    --svg-card-bg: var(--bg-card, #1e293b);
    --svg-panel-header-bg: rgba(15, 23, 42, 0.45);
    --svg-panel-footer-bg: rgba(15, 23, 42, 0.35);
    --svg-border-color: var(--border-color, rgba(148, 163, 184, 0.15));
    --svg-text-primary: var(--text-primary, #f1f5f9);
    --svg-text-secondary: var(--text-secondary, #94a3b8);
    --svg-stat-bg: rgba(15, 23, 42, 0.45);
    --svg-chip-bg: rgba(15, 23, 42, 0.5);
    --svg-editor-bg: rgba(15, 23, 42, 0.6);
    --svg-editor-text: #f8fafc;
    --svg-btn-outline-border: rgba(148, 163, 184, 0.25);
    --svg-btn-outline-color: var(--text-secondary, #94a3b8);
    --svg-btn-outline-hover-bg: rgba(255, 255, 255, 0.08);
    --svg-grid-line: rgba(99, 102, 241, 0.15);
}

body.light-theme,
.light-theme {
    --svg-card-bg: #ffffff;
    --svg-panel-header-bg: #f8fafc;
    --svg-panel-footer-bg: #f8fafc;
    --svg-border-color: #e2e8f0;
    --svg-text-primary: #0f172a;
    --svg-text-secondary: #64748b;
    --svg-stat-bg: #f1f5f9;
    --svg-chip-bg: #f1f5f9;
    --svg-editor-bg: #ffffff;
    --svg-editor-text: #0f172a;
    --svg-btn-outline-border: #cbd5e1;
    --svg-btn-outline-color: #475569;
    --svg-btn-outline-hover-bg: #e2e8f0;
    --svg-grid-line: rgba(99, 102, 241, 0.2);
}

.svg-tool-container {
    margin-bottom: 2rem;
}

/* Toolbar */
.svg-top-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.85rem 1.25rem;
    background: var(--svg-card-bg);
    border: 1px solid var(--svg-border-color);
    border-radius: var(--radius-md, 12px);
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.08));
}

.svg-top-toolbar .btn,
.svg-top-toolbar .input-group-text,
.svg-top-toolbar select.custom-select {
    height: 38px;
    display: inline-flex;
    align-items: center;
}

.svg-top-toolbar .input-group-text {
    background: var(--svg-panel-header-bg);
    color: var(--svg-text-secondary);
    border-color: var(--svg-border-color);
}

.svg-top-toolbar select.custom-select {
    background-color: var(--svg-card-bg);
    color: var(--svg-text-primary);
    border-color: var(--svg-border-color);
}

.card {
    background-color: var(--svg-card-bg);
    border: 1px solid var(--svg-border-color);
}

.card-header {
    border-color: var(--svg-border-color) !important;
}

.card-title {
    color: var(--svg-text-primary) !important;
}

.panel-header .btn-sm,
.panel-header #zoomLevelBadge {
    height: 32px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 12px;
}


/* Editor & Preview Split */
.editor-card, .preview-card {
    background: var(--svg-card-bg);
    border: 1px solid var(--svg-border-color);
    border-radius: var(--radius-md, 12px);
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 560px;
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.08));
    overflow: hidden;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    background: var(--svg-panel-header-bg);
    border-bottom: 1px solid var(--svg-border-color);
}

.panel-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--svg-text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.panel-badges {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.panel-badges #charCountBadge {
    background: var(--svg-stat-bg);
    color: var(--svg-text-secondary);
    border: 1px solid var(--svg-border-color);
}

/* Code Editor Textarea */
.editor-wrapper {
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0;
    background: var(--svg-editor-bg);
}

.svg-textarea {
    width: 100%;
    flex: 1;
    min-height: 440px;
    background: var(--svg-editor-bg) !important;
    color: var(--svg-editor-text) !important;
    border: none;
    border-radius: 0;
    font-family: var(--font-mono, 'Fira Code', 'Consolas', monospace);
    font-size: 0.88rem;
    line-height: 1.5;
    padding: 1rem;
    resize: vertical;
    white-space: pre;
    tab-size: 2;
    outline: none;
}

.svg-textarea:focus {
    box-shadow: none;
}

.svg-drop-zone.dragover {
    border: 2px dashed #6366f1 !important;
    background: rgba(99, 102, 241, 0.08) !important;
}

.editor-footer-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.65rem 1rem;
    background: var(--svg-panel-footer-bg);
    border-top: 1px solid var(--svg-border-color);
}

.editor-footer-bar .btn-outline-secondary,
.panel-header .btn-outline-secondary {
    border-color: var(--svg-btn-outline-border);
    color: var(--svg-btn-outline-color);
    background: var(--svg-card-bg);
}

.editor-footer-bar .btn-outline-secondary:hover,
.panel-header .btn-outline-secondary:hover,
.panel-header .btn-outline-secondary.active {
    background: var(--svg-btn-outline-hover-bg);
    color: var(--svg-text-primary);
    border-color: var(--svg-btn-outline-color);
}

/* Canvas Viewport */
.canvas-wrapper {
    position: relative;
    flex: 1;
    min-height: 440px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    cursor: grab;
    user-select: none;
    transition: background-color 0.2s ease;
}

.canvas-wrapper.is-panning {
    cursor: grabbing;
}

/* Background Patterns */
.bg-checker {
    background-color: #232936;
    background-image: 
        linear-gradient(45deg, #181d28 25%, transparent 25%), 
        linear-gradient(-45deg, #181d28 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #181d28 75%), 
        linear-gradient(-45deg, transparent 75%, #181d28 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

body.light-theme .bg-checker,
.light-theme .bg-checker {
    background-color: #ffffff !important;
    background-image: 
        linear-gradient(45deg, #e2e8f0 25%, transparent 25%), 
        linear-gradient(-45deg, #e2e8f0 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #e2e8f0 75%), 
        linear-gradient(-45deg, transparent 75%, #e2e8f0 75%) !important;
}

.bg-white {
    background-color: #ffffff !important;
    background-image: none !important;
}

.bg-dark {
    background-color: #090d16 !important;
    background-image: none !important;
}

.bg-slate {
    background-color: #1e293b !important;
    background-image: none !important;
}

/* Canvas Grid Overlay */
.canvas-grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    background-size: 25px 25px;
    background-image: 
        linear-gradient(to right, var(--svg-grid-line) 1px, transparent 1px),
        linear-gradient(to bottom, var(--svg-grid-line) 1px, transparent 1px);
    z-index: 1;
}

/* Rendered SVG Element */
.svg-viewport {
    position: relative;
    z-index: 2;
    transition: transform 0.05s ease-out;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 90%;
    max-height: 90%;
}

.rendered-svg-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
}

.rendered-svg-element {
    max-width: 100%;
    max-height: 380px;
    height: auto;
    display: block;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

/* Fullscreen Mode */
.card-fullscreen {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 99999 !important;
    border-radius: 0 !important;
    max-height: 100vh !important;
}

.card-fullscreen .canvas-wrapper {
    height: calc(100vh - 120px) !important;
}

.card-fullscreen .rendered-svg-element {
    max-height: 80vh !important;
}

/* Background Buttons Toolbar */
.bg-options-bar {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.bg-option-btn {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: 1px solid var(--svg-btn-outline-border);
    cursor: pointer;
    padding: 0;
    outline: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.bg-option-btn.active {
    outline: 2px solid #6366f1;
    outline-offset: 1px;
}

.bg-opt-checker {
    background: repeating-conic-gradient(#cbd5e1 0% 25%, #ffffff 0% 50%) 50% / 8px 8px;
}

.bg-opt-white {
    background: #ffffff;
}

.bg-opt-dark {
    background: #090d16;
}

.bg-opt-slate {
    background: #1e293b;
}

.custom-color-input-wrapper {
    position: relative;
    width: 24px;
    height: 24px;
    overflow: hidden;
    border-radius: 4px;
    border: 1px solid var(--svg-btn-outline-border);
    cursor: pointer;
}

.custom-color-input-wrapper input[type="color"] {
    position: absolute;
    top: -5px;
    left: -5px;
    width: 34px;
    height: 34px;
    border: none;
    cursor: pointer;
}

/* Inspector Metrics Card */
.stat-item {
    background: var(--svg-stat-bg);
    border: 1px solid var(--svg-border-color);
    border-radius: 8px;
    padding: 0.85rem;
    text-align: center;
}

.stat-item-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--svg-text-secondary);
    margin-bottom: 0.35rem;
}

.stat-item-value {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--svg-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Color Palette Extractor */
.palette-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-height: 140px;
    overflow-y: auto;
    padding: 0.5rem 0;
}

.color-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.65rem;
    background: var(--svg-chip-bg);
    border: 1px solid var(--svg-border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.color-chip:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: #6366f1;
    transform: translateY(-1px);
}

.color-swatch {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    border: 1px solid rgba(0, 0, 0, 0.15);
}

.color-label {
    font-family: var(--font-mono, monospace);
    font-size: 0.8rem;
    color: var(--svg-text-primary);
}

/* Forms in Export Card */
#exportScaleSelect, #jpegBgColorSelect {
    background-color: var(--svg-card-bg);
    color: var(--svg-text-primary);
    border-color: var(--svg-border-color);
}

/* Toast Notification */
.svg-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    z-index: 100000;
    display: none;
}

.toast-success { background: #10b981; }
.toast-danger { background: #ef4444; }
.toast-info { background: #6366f1; }
.toast-warning { background: #f59e0b; }

@media (max-width: 991px) {
    .editor-card, .preview-card {
        min-height: 480px;
        margin-bottom: 1.5rem;
    }
}