/**
 * FCRM Layouts - Shared Base Styles
 * 
 * Common variables, utilities, and base styles for all modern layouts
 * 
 * @package FCRM_Enhancement_Suite
 * @subpackage Layouts
 * @since 1.0.0
 */

/* CSS Custom Properties (Variables) */
:root {
    /* Color Palette */
    --fcrm-primary: #2c3e50;
    --fcrm-primary-light: #34495e;
    --fcrm-primary-dark: #1a252f;
    --fcrm-secondary: #3498db;
    --fcrm-secondary-light: #5dade2;
    --fcrm-secondary-dark: #2980b9;
    
    /* Neutral Colors */
    --fcrm-white: #ffffff;
    --fcrm-gray-50: #f8f9fa;
    --fcrm-gray-100: #f1f3f4;
    --fcrm-gray-200: #e9ecef;
    --fcrm-gray-300: #dee2e6;
    --fcrm-gray-400: #ced4da;
    --fcrm-gray-500: #adb5bd;
    --fcrm-gray-600: #6c757d;
    --fcrm-gray-700: #495057;
    --fcrm-gray-800: #343a40;
    --fcrm-gray-900: #212529;
    
    /* Semantic Colors */
    --fcrm-text-primary: var(--fcrm-gray-900);
    --fcrm-text-secondary: var(--fcrm-gray-600);
    --fcrm-text-muted: var(--fcrm-gray-500);
    --fcrm-border: var(--fcrm-gray-200);
    --fcrm-border-light: var(--fcrm-gray-100);
    --fcrm-background: var(--fcrm-white);
    --fcrm-background-alt: var(--fcrm-gray-50);
    
    /* Typography */
    --fcrm-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --fcrm-font-size-xs: 0.75rem;
    --fcrm-font-size-sm: 0.875rem;
    --fcrm-font-size-base: 1rem;
    --fcrm-font-size-lg: 1.125rem;
    --fcrm-font-size-xl: 1.25rem;
    --fcrm-font-size-2xl: 1.5rem;
    --fcrm-font-size-3xl: 1.875rem;
    
    --fcrm-font-weight-normal: 400;
    --fcrm-font-weight-medium: 500;
    --fcrm-font-weight-semibold: 600;
    --fcrm-font-weight-bold: 700;
    
    --fcrm-line-height-tight: 1.25;
    --fcrm-line-height-normal: 1.5;
    --fcrm-line-height-relaxed: 1.625;
    
    /* Spacing */
    --fcrm-space-1: 0.25rem;
    --fcrm-space-2: 0.5rem;
    --fcrm-space-3: 0.75rem;
    --fcrm-space-4: 1rem;
    --fcrm-space-5: 1.25rem;
    --fcrm-space-6: 1.5rem;
    --fcrm-space-8: 2rem;
    --fcrm-space-10: 2.5rem;
    --fcrm-space-12: 3rem;
    --fcrm-space-16: 4rem;
    --fcrm-space-20: 5rem;
    
    /* Border Radius */
    --fcrm-radius-sm: 0.25rem;
    --fcrm-radius: 0.375rem;
    --fcrm-radius-md: 0.5rem;
    --fcrm-radius-lg: 0.75rem;
    --fcrm-radius-xl: 1rem;
    --fcrm-radius-full: 9999px;
    
    /* Shadows */
    --fcrm-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --fcrm-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --fcrm-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --fcrm-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --fcrm-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --fcrm-transition-fast: 150ms ease-in-out;
    --fcrm-transition-normal: 250ms ease-in-out;
    --fcrm-transition-slow: 350ms ease-in-out;
    
    /* Z-index */
    --fcrm-z-dropdown: 1000;
    --fcrm-z-sticky: 1020;
    --fcrm-z-fixed: 1030;
    --fcrm-z-modal-backdrop: 1040;
    --fcrm-z-modal: 1050;
    --fcrm-z-popover: 1060;
    --fcrm-z-tooltip: 1070;
}

/* Base Reset and Normalisation */
.fcrm-tributes-container {
    box-sizing: border-box;
    font-family: var(--fcrm-font-family);
    line-height: var(--fcrm-line-height-normal);
    color: var(--fcrm-text-primary);
}

.fcrm-tributes-container *,
.fcrm-tributes-container *::before,
.fcrm-tributes-container *::after {
    box-sizing: inherit;
}

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

/* Focus Styles */
.fcrm-tributes-container a:focus,
.fcrm-tributes-container button:focus {
    outline: 2px solid var(--fcrm-secondary);
    outline-offset: 2px;
}

/* Button Base Styles */
.fcrm-tributes-container button,
.fcrm-tributes-container .service-button,
.fcrm-tributes-container .view-details-button,
.fcrm-tributes-container .fcrm-load-more-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--fcrm-space-2);
    padding: var(--fcrm-space-2) var(--fcrm-space-4);
    font-family: inherit;
    font-size: var(--fcrm-font-size-sm);
    font-weight: var(--fcrm-font-weight-medium);
    line-height: 1;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--fcrm-radius);
    cursor: pointer;
    transition: all var(--fcrm-transition-fast);
    user-select: none;
}

.fcrm-tributes-container button:disabled,
.fcrm-tributes-container .service-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Icon Styles */
.fcrm-tributes-container .service-icon,
.fcrm-tributes-container .button-icon {
    flex-shrink: 0;
    width: 1em;
    height: 1em;
}

/* Loading Spinner */
.fcrm-tributes-container .spinner {
    -webkit-animation: fcrm-spin 1s linear infinite;
    animation: fcrm-spin 1s linear infinite;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    will-change: transform;
}

@-webkit-keyframes fcrm-spin {
    from {
        -webkit-transform: rotate(0deg);
    }
    to {
        -webkit-transform: rotate(360deg);
    }
}

@keyframes fcrm-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* No Tributes Message */
.fcrm-no-tributes {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    padding: var(--fcrm-space-8);
    text-align: center;
}

.no-tributes-message h3 {
    margin: 0 0 var(--fcrm-space-2) 0;
    font-size: var(--fcrm-font-size-xl);
    font-weight: var(--fcrm-font-weight-semibold);
    color: var(--fcrm-text-primary);
}

.no-tributes-message p {
    margin: 0;
    font-size: var(--fcrm-font-size-base);
    color: var(--fcrm-text-secondary);
}

/* Modal Base Styles (preserve FCRM functionality) */
.fcrm-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--fcrm-z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--fcrm-space-4);
}

.fcrm-modal-content {
    background: var(--fcrm-background);
    border-radius: var(--fcrm-radius-lg);
    box-shadow: var(--fcrm-shadow-xl);
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
    position: relative;
}

.fcrm-modal-close {
    position: absolute;
    top: var(--fcrm-space-4);
    right: var(--fcrm-space-4);
    font-size: var(--fcrm-font-size-2xl);
    font-weight: var(--fcrm-font-weight-bold);
    color: var(--fcrm-text-secondary);
    cursor: pointer;
    z-index: 1;
    transition: color var(--fcrm-transition-fast);
}

.fcrm-modal-close:hover {
    color: var(--fcrm-text-primary);
}

.fcrm-modal-body {
    padding: var(--fcrm-space-6);
}

/* Responsive Utilities */
@media (max-width: 640px) {
    :root {
        --fcrm-space-4: 0.75rem;
        --fcrm-space-6: 1rem;
        --fcrm-space-8: 1.5rem;
    }
    
    .fcrm-modal {
        padding: var(--fcrm-space-2);
    }
    
    .fcrm-modal-content {
        max-width: 95vw;
    }
    
    .fcrm-modal-body {
        padding: var(--fcrm-space-4);
    }
}

/* Print Styles */
@media print {
    .fcrm-tributes-container .service-buttons,
    .fcrm-tributes-container .view-details-button,
    .fcrm-tributes-container .fcrm-load-more-container {
        display: none;
    }
    
    .fcrm-tributes-container {
        background: white !important;
        color: black !important;
    }
    
    .fcrm-tribute-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}