/*
 * Form Maker - Accessibility-Focused Custom Theme
 * Designed for elderly and non-technical users
 * WCAG 2.1 AA Compliant
 */

:root {
    /* Minimum font sizes for readability */
    --base-font-size: 18px;
    --large-font-size: 20px;
    --heading-font-size: 24px;

    /* Minimum touch target sizes */
    --min-touch-target: 48px;
    --button-height: 48px;
    --input-height: 56px;

    /* High contrast colors (4.5:1 minimum) */
    --primary-color: #005fcc;
    --primary-hover: #004399;
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --background: #ffffff;
    --border-color: #cccccc;
    --focus-outline: #005fcc;

    /* Spacing */
    --element-spacing: 12px;
}

/* Global font size increase */
html {
    font-size: var(--base-font-size);
}

body {
    font-size: var(--base-font-size);
    line-height: 1.6;
    color: var(--text-primary);
}

/* Large, clear buttons */
.mud-button-root,
.mud-fab,
.mud-icon-button {
    min-height: var(--button-height) !important;
    min-width: var(--button-height) !important;
    font-size: var(--base-font-size) !important;
    font-weight: 500 !important;
}

/* Button text with icon spacing */
.mud-button-root .mud-button-label {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Large form inputs */
.mud-input-root,
.mud-select,
.mud-input-control {
    min-height: var(--input-height) !important;
}

.mud-input-root input,
.mud-input-root textarea {
    font-size: var(--base-font-size) !important;
    padding: 12px 16px !important;
}

/* Large checkboxes and radio buttons */
.mud-checkbox-root,
.mud-radio {
    min-height: var(--min-touch-target) !important;
    min-width: var(--min-touch-target) !important;
}

.mud-checkbox .mud-icon-root,
.mud-radio .mud-icon-root {
    font-size: 32px !important;
}

/* Spacing between interactive elements */
.mud-button-root + .mud-button-root,
.mud-input-control + .mud-input-control {
    margin-left: var(--element-spacing);
}

/* Clear focus indicators for keyboard navigation */
*:focus,
*:focus-visible {
    outline: 3px solid var(--focus-outline) !important;
    outline-offset: 2px !important;
}

/* Remove default MudBlazor focus outline in favor of custom */
.mud-button-root:focus,
.mud-input-root:focus-within {
    outline: 3px solid var(--focus-outline) !important;
    outline-offset: 2px !important;
}

/* High contrast for links */
a {
    color: var(--primary-color);
    text-decoration: underline;
    font-weight: 500;
}

a:hover {
    color: var(--primary-hover);
}

/* Larger tooltips */
.mud-tooltip {
    font-size: var(--base-font-size) !important;
    padding: 12px 16px !important;
    max-width: 300px;
}

/* Clear visual feedback for draggable elements */
.draggable {
    cursor: grab;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.draggable:active {
    cursor: grabbing;
}

.draggable:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Element being dragged */
.element-dragging {
    opacity: 0.7;
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    cursor: grabbing !important;
}

/* Selected element on canvas */
.element-selected {
    outline: 3px solid var(--primary-color) !important;
    outline-offset: 2px;
    box-shadow: 0 0 0 1px var(--primary-color);
}

/* Canvas grid background */
.canvas-grid {
    background-image:
        linear-gradient(rgba(0, 0, 0, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.05) 1px, transparent 1px);
    background-size: 10px 10px;
}

/* Alignment guides */
.alignment-guide {
    position: absolute;
    background-color: #ff4081;
    z-index: 1000;
    pointer-events: none;
}

.alignment-guide.vertical {
    width: 2px;
    height: 100%;
}

.alignment-guide.horizontal {
    height: 2px;
    width: 100%;
}

/* Smart spacing guides */
.spacing-guide {
    position: absolute;
    background-color: #4CAF50;
    z-index: 999;
    pointer-events: none;
    opacity: 0.8;
}

.spacing-guide.vertical {
    width: 2px;
    height: 100%;
}

.spacing-guide.horizontal {
    height: 2px;
    width: 100%;
}

/* Position indicator tooltip */
.position-indicator {
    position: fixed;
    background-color: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 14px;
    font-family: monospace;
    pointer-events: none;
    z-index: 10000;
    white-space: nowrap;
}

/* Toolbar spacing */
.toolbar {
    display: flex;
    gap: var(--element-spacing);
    padding: 16px;
    background-color: #f5f5f5;
    border-bottom: 2px solid var(--border-color);
    flex-wrap: wrap;
}

/* Element library sidebar */
.element-library {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    background-color: #fafafa;
    border-right: 2px solid var(--border-color);
    min-width: 280px;
}

.element-library-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: white;
    cursor: grab;
    transition: all 0.2s ease;
    min-height: var(--min-touch-target);
}

.element-library-item:hover {
    border-color: var(--primary-color);
    background-color: #f0f7ff;
    transform: translateX(4px);
}

.element-library-item .mud-icon-root {
    font-size: 32px;
    color: var(--primary-color);
}

.element-library-item span {
    font-size: var(--base-font-size);
    font-weight: 500;
}

/* Properties panel */
.properties-panel {
    padding: 16px;
    background-color: #fafafa;
    border-left: 2px solid var(--border-color);
    min-width: 320px;
    max-height: 100vh;
    overflow-y: auto;
}

.properties-panel .mud-input-control {
    margin-bottom: 16px;
}

/* Canvas container */
.canvas-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 32px;
    background-color: #e8e8e8;
    overflow: auto;
}

.canvas {
    background-color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    position: relative;
    min-height: 800px;
}

/* A4 page size (for print) */
.canvas.a4 {
    width: 210mm;
    height: 297mm;
}

/* US Letter page size */
.canvas.letter {
    width: 8.5in;
    height: 11in;
}

/* Safe area margins indicator */
.canvas-margins {
    position: absolute;
    top: 0.5in;
    left: 0.5in;
    right: 0.5in;
    bottom: 0.5in;
    border: 1px dashed #999;
    pointer-events: none;
}

/* Snackbar (toast notifications) */
.mud-snackbar {
    font-size: var(--base-font-size) !important;
    padding: 16px 20px !important;
}

/* Dialog boxes */
.mud-dialog {
    min-width: 400px;
}

.mud-dialog-title {
    font-size: var(--heading-font-size) !important;
    font-weight: 600;
}

.mud-dialog-content {
    font-size: var(--base-font-size) !important;
    line-height: 1.6;
}

/* Loading spinner */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

/* Accessibility: Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Print styles */
@media print {
    .toolbar,
    .element-library,
    .properties-panel {
        display: none !important;
    }

    .canvas {
        box-shadow: none;
        margin: 0;
        page-break-after: always;
    }

    .canvas-margins {
        display: none;
    }
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    :root {
        --base-font-size: 16px;
        --button-height: 44px;
        --input-height: 52px;
    }

    .element-library {
        min-width: 100%;
        border-right: none;
        border-bottom: 2px solid var(--border-color);
    }

    .properties-panel {
        min-width: 100%;
        border-left: none;
        border-top: 2px solid var(--border-color);
    }

    .toolbar {
        justify-content: center;
    }

    .canvas-container {
        padding: 16px;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --text-primary: #000000;
        --background: #ffffff;
        --border-color: #000000;
    }

    .element-library-item,
    .mud-button-root,
    .canvas {
        border-width: 3px !important;
    }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}