/* ==========================================================================
   PEPADB SHARED DESIGN SYSTEM
   ========================================================================== */

/* Enhanced Design System */
:root {
    /* Brand Colors - Modernized for lighter, more contemporary feel */
    --color-primary: #475569;
    --color-primary-light: #64748b;
    --color-primary-dark: #334155;
    --color-accent: #dc2626;
    --color-accent-light: #ef4444;
    --color-accent-dark: #b91c1c;

    /* Neutral Colors - Essential grays only */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* Semantic Colors */
    --color-success: #059669;
    --color-success-light: #10b981;
    --color-warning: #d97706;
    --color-warning-light: #f59e0b;
    --color-info: #2563eb;
    --color-info-light: #3b82f6;
    --color-error: #dc2626;
    --color-error-light: #ef4444;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;

    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #334155;
    --text-tertiary: #64748b;

    /* Border Colors */
    --border-light: rgba(0, 0, 0, 0.04);
    --border-medium: rgba(0, 0, 0, 0.08);

    /* Simplified Shadow System */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.08), 0 1px 2px -1px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

    /* Simplified Border Radius System */
    --radius-sm: 6px;
    --radius-base: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Essential Spacing Scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-12: 48px;
    --space-16: 64px;

    /* Simplified Transition System */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Font Stack Variables (matches shared/css/fonts.css) */
    --font-brand: 'Nasalization', sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'SF Mono', Monaco, Inconsolata, 'Roboto Mono', 'Source Code Pro', Menlo, Consolas, 'DejaVu Sans Mono', monospace;
}

/* ==========================================================================
   ESSENTIAL UTILITY CLASSES ONLY
   ========================================================================== */

/* Essential Spacing Utilities - Keep only commonly used ones */
.py-sm {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.py-md {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

.py-lg {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.py-xl {
    padding-top: 3rem;
    padding-bottom: 3rem;
}

.mt-sm {
    margin-top: 1rem;
}

.mt-md {
    margin-top: 1.5rem;
}

.mb-sm {
    margin-bottom: 1rem;
}

.mb-md {
    margin-bottom: 1.5rem;
}

/* ==========================================================================
   UNIFIED BUTTON SYSTEM - SINGLE SOURCE OF TRUTH
   ========================================================================== */

.btn,
.button-meta,
.admin-link,
.btn-control,
.btn-secondary {
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-base);
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.025em;
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    line-height: 1;
    min-height: 2.25rem;
}

.btn:hover,
.button-meta:hover,
.admin-link:hover,
.btn-control:hover,
.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.btn:active,
.button-meta:active,
.admin-link:active,
.btn-control:active,
.btn-secondary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-base);
    transition: all var(--transition-fast);
}

.btn:focus,
.button-meta:focus,
.admin-link:focus,
.btn-control:focus,
.btn-secondary:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    box-shadow: var(--shadow-base), 0 0 0 4px rgba(220, 38, 38, 0.1);
}

/* Primary Button Variant */
.btn-primary,
.btn,
.btn-control {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.btn-primary:hover,
.btn:hover,
.btn-control:hover {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-gray-900) 100%);
    color: var(--color-white);
}

/* Secondary Button Variant */
.btn-secondary {
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-gray-100) 100%);
    color: var(--color-primary);
    border: 1px solid var(--color-gray-300);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-gray-200) 100%);
    color: var(--color-primary-dark);
    border-color: var(--color-gray-500);
}

/* Accent Button Variant */
.btn-accent {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-white);
}

.btn-accent:hover {
    background: linear-gradient(135deg, var(--color-accent-dark) 0%, var(--color-accent-dark) 100%);
    color: var(--color-white);
}

/* Success Button Variant */
.btn-success {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-light) 100%);
    color: var(--color-white);
}

.btn-success:hover {
    background: var(--color-success);
    color: var(--color-white);
}

/* Warning Button Variant */
.btn-warning {
    background: var(--color-warning);
    color: var(--color-white);
}

.btn-warning:hover {
    background: var(--color-warning-light);
    color: var(--color-white);
}

/* Info Button Variant */
.btn-info {
    background: var(--color-info);
    color: var(--color-white);
}

.btn-info:hover {
    background: var(--color-info-light);
    color: var(--color-white);
}

/* Meta Button Specific Styling */
.button-meta {
    background: linear-gradient(135deg, var(--color-info) 0%, var(--color-info-light) 100%);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    font-size: 0.75rem;
    width: 100%;
    margin-top: auto;
}

.button-meta:hover {
    background: linear-gradient(135deg, var(--color-info-light) 0%, var(--color-info) 100%);
    color: var(--color-white);
}

.button-meta i {
    margin-right: 0.5em;
    opacity: 0.4;
}

/* ==========================================================================
   SHARED LOADING STATES
   ========================================================================== */

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-gray-200);
    border-top: 3px solid var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.loading-skeleton {
    background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
    border-radius: 8px;
}

@keyframes loading-shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

/* ==========================================================================
   ACCESSIBILITY ENHANCEMENTS
   ========================================================================== */

.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 8px 16px;
    text-decoration: none;
    border-radius: 0 0 8px 8px;
    font-weight: 500;
    z-index: 1100;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
    color: var(--color-white);
    text-decoration: none;
}

.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;
}

/* Enhanced Focus Indicators */
*:focus {
    transition: outline 0.2s ease, box-shadow 0.2s ease;
}

/* ==========================================================================
   RESPONSIVE UTILITIES
   ========================================================================== */

/* Prevent horizontal overflow on all devices */
html {
    overflow-x: hidden;
}

main {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

/* Ensure images don't cause overflow */
img {
    max-width: 100%;
    height: auto;
}

/* Prevent text from overflowing */
p,
span,
div,
h1,
h2,
h3,
h4,
h5,
h6 {
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Bootstrap row/column mobile fixes */
.row {
    margin: 0;
    width: 100%;
    max-width: 100%;
}

/* ==========================================================================
   MOBILE RESPONSIVE ADJUSTMENTS
   ========================================================================== */

@media (max-width: 768px) {
    .py-lg {
        padding-top: 1.5rem;
        padding-bottom: 1.5rem;
    }

    .py-xl {
        padding-top: 2rem;
        padding-bottom: 2rem;
    }
}

/* ==========================================================================
   FOOTER STYLES - ALIGNED WITH METADATA SECTION (SHARED ACROSS ALL PAGES)
   ========================================================================== */

#container-logos-footer {
    background-color: var(--color-primary) !important;
    /* Override Bootstrap p-4 class completely */
    padding: 0 !important;
    margin: 0 !important;
}

/* Create an inner wrapper that matches .container-meta structure exactly */
#container-logos-footer .container-fluid.row {
    max-width: 1280px !important;
    margin: 0 auto !important;
    /* Match .container-meta padding exactly: 3rem 2rem on desktop */
    padding: 3rem 2rem !important;
    /* Remove Bootstrap row negative margins */
    margin-left: auto !important;
    margin-right: auto !important;
    width: 100% !important;
}

@media (min-width: 768px) {
    footer .row>* {
        margin: 0;
    }
}

/* Responsive footer alignment - EXACTLY MATCHES .container-meta responsive breakpoints */
@media (max-width: 1024px) {
    #container-logos-footer .container-fluid.row {
        /* Match container-meta: padding: 2.5rem 1.5rem */
        padding: 2.5rem 1.5rem !important;
    }
}

@media (max-width: 768px) {
    #container-logos-footer .container-fluid.row {
        /* Match container-meta: padding: 2rem 1.5rem */
        padding: 2rem 1.5rem !important;
    }
}

@media (max-width: 480px) {
    #container-logos-footer .container-fluid.row {
        /* Match container-meta: padding: 1.5rem 1rem */
        padding: 1.5rem 1rem !important;
    }
}