/* ============================================
   ULTRA MODERN FOOTER - Professional Design
   ============================================ */

.modern-footer {
    position: relative;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    color: #e2e8f0;
    overflow: hidden;
}

/* Footer Content */
.footer-content {
    position: relative;
    padding: 4rem 0 2rem;
}

.footer-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(201, 169, 97, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

/* Footer Grid */
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 3rem;
    margin-bottom: 3rem;
    position: relative;
}

/* Brand Column */
.footer-brand-col {
    padding-right: 2rem;
}

.brand-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    filter: drop-shadow(0 4px 12px rgba(201, 169, 97, 0.3));
    transition: transform 0.3s ease;
}

.footer-logo:hover {
    transform: scale(1.1) rotate(5deg);
}

.brand-name {
    font-size: 1.75rem;
    font-weight: 800;
    margin: 0;
    background: linear-gradient(135deg, #c9a961 0%, #dfc480 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-description {
    color: #94a3b8;
    line-height: 1.7;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

/* Footer Stats */
.footer-stats {
    display: flex;
    gap: 2rem;
    margin-top: 1.5rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(201, 169, 97, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(201, 169, 97, 0.15);
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(201, 169, 97, 0.1);
    transform: translateY(-3px);
}

.stat-item i {
    font-size: 1.5rem;
    color: #c9a961;
}

.stat-item strong {
    display: block;
    font-size: 1.25rem;
    color: #ffffff;
    font-weight: 700;
}

.stat-item span {
    display: block;
    font-size: 0.8rem;
    color: #94a3b8;
}

/* Footer Headings */
.footer-heading {
    font-size: 1.125rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #c9a961, transparent);
    border-radius: 2px;
}

/* Footer Links */
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 0;
}

.footer-links a i {
    font-size: 0.75rem;
    color: #c9a961;
    transition: transform 0.3s ease;
}

.footer-links a:hover {
    color: #c9a961;
    padding-left: 0.5rem;
}

.footer-links a:hover i {
    transform: translateX(3px);
}

/* Newsletter */
.newsletter-text {
    color: #94a3b8;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.newsletter-input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #ffffff;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.newsletter-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.08);
    border-color: #c9a961;
    box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.1);
}

.newsletter-input::placeholder {
    color: #64748b;
}

.newsletter-btn {
    padding: 0.75rem 1.25rem;
    background: linear-gradient(135deg, #c9a961, #dfc480);
    border: none;
    border-radius: 8px;
    color: #0f172a;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.newsletter-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(201, 169, 97, 0.3);
}

/* Social Links */
.footer-social {
    display: flex;
    gap: 0.75rem;
}

.social-btn {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    overflow: hidden;
}

.social-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #c9a961, #dfc480);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.social-btn i {
    position: relative;
    z-index: 1;
}

.social-btn:hover::before {
    opacity: 1;
}

.social-btn:hover {
    color: #0f172a;
    border-color: transparent;
    box-shadow: 0 8px 20px rgba(201, 169, 97, 0.3);
}

.social-btn.facebook:hover { background: #1877f2; }
.social-btn.instagram:hover { background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%); }
.social-btn.twitter:hover { background: #1da1f2; }
.social-btn.linkedin:hover { background: #0077b5; }

/* Footer Bottom */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.footer-bottom-left p {
    margin: 0;
    color: #94a3b8;
    font-size: 0.9rem;
}

.footer-bottom-left strong {
    color: #c9a961;
}

.footer-bottom-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-bottom-right a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-bottom-right a:hover {
    color: #c9a961;
}

.separator {
    color: #475569;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #c9a961, #dfc480);
    color: #0f172a;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(201, 169, 97, 0.3);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(201, 169, 97, 0.4);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .footer-brand-col {
        grid-column: 1 / -1;
        padding-right: 0;
    }
}

@media (max-width: 768px) {
    .footer-wave svg {
        height: 60px;
    }
    
    .footer-content {
        padding: 3rem 0 1.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* Dark Theme Adjustments */
[data-theme="dark"] .modern-footer {
    background: linear-gradient(135deg, #000000 0%, #0a0a0a 50%, #000000 100%);
}

[data-theme="dark"] .newsletter-input {
    background: rgba(255, 255, 255, 0.03);
}

[data-theme="dark"] .social-btn {
    background: rgba(255, 255, 255, 0.03);
}
/**
 * MUSEO - Professional Advanced Styles
 * Features: Day/Dark Mode, Accessibility (WCAG 2.1 AA), Responsive Design, Modern UI
 * Created: November 27, 2025
 */

/* ============================================
   CSS VARIABLES - Day & Dark Mode
   ============================================ */

:root {
    /* Light Mode Colors - High Contrast for Accessibility */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    /* Accent Colors - Sophisticated & Accessible */
    --accent-gold: #c9a961;
    --accent-gold-dark: #a88b4a;
    --accent-gold-light: #dfc480;
    --accent-blue: #1e3a5f;
    --accent-blue-light: #2c5282;
    --accent-blue-dark: #1a2f4d;
    
    /* Semantic Colors - WCAG AA Compliant */
    --success: #059669;
    --success-light: #d1fae5;
    --warning: #d97706;
    --warning-light: #fef3c7;
    --error: #dc2626;
    --error-light: #fee2e2;
    --info: #2563eb;
    --info-light: #dbeafe;
    
    /* Borders & Shadows - Subtle Depth */
    --border-color: #e2e8f0;
    --border-color-light: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* Transitions - Smooth & Responsive */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border Radius - Consistent Shapes */
    --radius-xs: 0.25rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;
    
    /* Spacing Scale - Harmonious Rhythm */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography - Professional & Readable */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-heading: 'Georgia', 'Times New Roman', serif;
    --font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
    
    /* Font Sizes - Responsive Scale */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    
    /* Z-Index Layers */
    --z-base: 0;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
}

/* Dark Mode Variables - WCAG AA Compliant */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --accent-gold: #dfc480;
    --accent-gold-dark: #c9a961;
    --accent-blue: #60a5fa;
    --accent-blue-light: #93c5fd;
    
    --border-color: #334155;
    --border-color-light: #475569;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.7);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.8);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.9);
    
    --success-light: #064e3b;
    --warning-light: #78350f;
    --error-light: #7f1d1d;
    --info-light: #1e3a8a;
}

/* ============================================
   GLOBAL RESETS & BASE STYLES
   ============================================ */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: var(--text-base);
    font-weight: 400;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* Accessibility: Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Typography Base */
h1, h2, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 0.5em;
}
h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: #ffffff;
    margin-bottom: 0.5em;
}
h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-gold);
}

a:focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 3px;
    border-radius: var(--radius-xs);
}

img,
picture,
svg,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

/* Background Image - Clear & Visible */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../public/images/louvre.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    filter: blur(1px) brightness(1.05);
    z-index: -2;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    z-index: -1;
    pointer-events: none;
}

[data-theme="dark"] body::after {
    background: linear-gradient(
        to bottom,
        rgba(15, 23, 42, 0.6) 0%,
        rgba(15, 23, 42, 0.75) 100%
    );
}

/* ============================================
   NAVIGATION / HEADER - Professional & Accessible
   ============================================ */

.navbar-advanced {
    background: rgb(255, 255, 255);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    transition: all var(--transition-normal);
}

.navbar-advanced.scrolled {
    background: rgb(255, 255, 255);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

[data-theme="dark"] .navbar-advanced {
    background: rgb(15, 23, 42);
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .navbar-advanced.scrolled {
    background: rgb(15, 23, 42);
}

.navbar-advanced .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.875rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* Logo - Clean & Professional */
.navbar-brand-advanced {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.125rem;
    letter-spacing: -0.02em;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.navbar-brand-advanced:hover {
    transform: translateY(-1px);
    opacity: 0.85;
    color: var(--text-primary);
}

.navbar-brand-advanced:focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 4px;
    border-radius: var(--radius-md);
}

.navbar-brand-advanced img {
    height: 44px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

[data-theme="dark"] .navbar-brand-advanced img {
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.5)) brightness(1.1);
}

/* Navigation Container */
.navbar-nav-advanced {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
}

/* Navigation Links - Accessible & Interactive */
.nav-link-advanced {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    padding: 0.625rem 1rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.nav-link-advanced i {
    font-size: 0.875rem;
    opacity: 0.75;
    transition: opacity var(--transition-fast);
}

.nav-link-advanced:hover {
    color: var(--accent-gold);
    background: rgba(201, 169, 97, 0.08);
    transform: translateY(-1px);
}

.nav-link-advanced:hover i {
    opacity: 1;
}

.nav-link-advanced:focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 2px;
    color: var(--accent-gold);
}

.nav-link-advanced.active {
    color: var(--accent-gold);
    font-weight: 600;
    background: rgba(201, 169, 97, 0.1);
}

.nav-link-advanced.active::after {
    content: '';
    position: absolute;
    bottom: 0.375rem;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--accent-gold);
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(201, 169, 97, 0.5);
}

/* Theme Toggle - Modern & Accessible */
.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1.1rem;
    margin-left: 0.75rem;
    position: relative;
    overflow: hidden;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--accent-gold);
    opacity: 0;
    transition: opacity var(--transition-fast);
    border-radius: inherit;
}

.theme-toggle:hover {
    color: var(--accent-gold);
    border-color: var(--accent-gold);
    transform: rotate(180deg) scale(1.05);
}

.theme-toggle:hover::before {
    opacity: 0.1;
}

.theme-toggle:active {
    transform: rotate(180deg) scale(0.95);
}

.theme-toggle:focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 3px;
}

.theme-toggle i {
    position: relative;
    z-index: 1;
    transition: transform var(--transition-fast);
}

/* Icon animation on theme change */
[data-theme="dark"] .theme-toggle i {
    transform: rotate(360deg);
}

/* Mobile Menu Toggle - Hamburger Animation */
.navbar-toggler-advanced {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    background: transparent;
    border: 2px solid var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    width: 48px;
    height: 48px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: var(--z-fixed);
}

.navbar-toggler-advanced:hover {
    background: rgba(201, 169, 97, 0.1);
    border-color: var(--accent-gold);
    transform: scale(1.05);
}

.navbar-toggler-advanced:focus {
    outline: 3px solid var(--accent-gold);
    outline-offset: 2px;
}

.navbar-toggler-advanced:active {
    transform: scale(0.95);
}

.navbar-toggler-advanced span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.navbar-toggler-advanced span:nth-child(1) {
    transform-origin: top left;
}

.navbar-toggler-advanced span:nth-child(2) {
    opacity: 1;
}

.navbar-toggler-advanced span:nth-child(3) {
    transform-origin: bottom left;
}

/* État actif du burger - transformation en X */
.navbar-toggler-advanced.active {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
}

.navbar-toggler-advanced.active span {
    background: white;
}

.navbar-toggler-advanced.active span:nth-child(1) {
    transform: rotate(45deg) translate(3px, -3px);
}

.navbar-toggler-advanced.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(20px);
}

.navbar-toggler-advanced.active span:nth-child(3) {
    transform: rotate(-45deg) translate(3px, 3px);
}

/* Dark mode burger styles */
[data-theme="dark"] .navbar-toggler-advanced {
    border-color: rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .navbar-toggler-advanced:hover {
    background: rgba(201, 169, 97, 0.2);
    border-color: var(--accent-gold);
}

[data-theme="dark"] .navbar-toggler-advanced span {
    background: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .navbar-toggler-advanced.active {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
}

[data-theme="dark"] .navbar-toggler-advanced.active span {
    background: white;
}

/* ============================================
   RESPONSIVE - MOBILE MENU
   ============================================ */

@media (max-width: 991px) {
    .navbar-toggler-advanced {
        display: flex;
    }
    
    .navbar-nav-advanced {
        position: fixed;
        top: 0;
        right: -100%;
        width: 320px;
        max-width: 85vw;
        height: 100vh;
        background: #ffffff;
        flex-direction: column;
        align-items: stretch;
        padding: 5rem 1.5rem 2rem;
        gap: 0.5rem;
        box-shadow: -8px 0 32px rgba(0, 0, 0, 0.5);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
        border-left: 3px solid #c9a961;
        z-index: 10000;
    }
    
    [data-theme="dark"] .navbar-nav-advanced {
        background: #1e293b;
        box-shadow: -8px 0 32px rgba(0, 0, 0, 0.8);
    }
    
    .navbar-nav-advanced.active {
        right: 0;
    }
    
    .nav-link-advanced {
        width: 100%;
        justify-content: flex-start;
        padding: 1rem 1.25rem;
        font-size: 1.05rem;
        border-radius: var(--radius-lg);
    }
    
    .nav-link-advanced i {
        font-size: 1.1rem;
    }
    
    .theme-toggle {
        margin-left: 0;
        width: 100%;
        height: auto;
        padding: 1rem 1.25rem;
        border-radius: var(--radius-lg);
        justify-content: flex-start;
        gap: 0.75rem;
    }
    
    .theme-toggle::after {
        content: 'Changer de thème';
        font-size: 1.05rem;
        font-weight: 500;
    }
    
    .navbar-advanced .container {
        padding: 0.75rem 1.5rem;
    }
}

/* Mobile Overlay - Backdrop for menu */
.navbar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}
    z-index: calc(var(--z-fixed) - 2);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.navbar-overlay.active {
    display: block;
    opacity: 1;
}

[data-theme="dark"] .navbar-overlay {
    background: rgba(0, 0, 0, 0.7);
}

/* ============================================
   RESPONSIVE BREAKPOINTS - Tablet & Mobile
   ============================================ */

/* Tablet (768px - 991px) */
@media (max-width: 991px) and (min-width: 768px) {
    .navbar-advanced .container {
        padding: 0.75rem 1.75rem;
    }
    
    .navbar-brand-advanced {
        font-size: 1.125rem;
    }
    
    .navbar-brand-advanced img {
        height: 42px;
    }
}

/* Mobile Large (576px - 767px) */
@media (max-width: 767px) {
    .navbar-advanced .container {
        padding: 0.625rem 1.25rem;
    }
    
    .navbar-brand-advanced {
        font-size: 1.0625rem;
    }
    
    .navbar-brand-advanced img {
        height: 38px;
    }
    
    .navbar-nav-advanced {
        width: 300px;
    }
}

/* Mobile Small (< 576px) */
@media (max-width: 575px) {
    .navbar-advanced .container {
        padding: 0.5rem 1rem;
    }
    
    .navbar-brand-advanced {
        font-size: 1rem;
        gap: 0.5rem;
    }
    
    .navbar-brand-advanced img {
        height: 36px;
    }
    
    .navbar-nav-advanced {
        width: 280px;
        padding: 4.5rem 1.25rem 1.5rem;
    }
    
    .theme-toggle {
        width: 38px;
        height: 38px;
        margin-left: 0.5rem;
    }
    
    .navbar-toggler-advanced {
        width: 40px;
        height: 40px;
        padding: 0.5rem;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Containers */
.container-fluid-advanced {
    width: 100%;
    padding-right: var(--spacing-md);
    padding-left: var(--spacing-md);
    margin-right: auto;
    margin-left: auto;
}

.container-advanced {
    max-width: 1400px;
    padding-right: var(--spacing-md);
    padding-left: var(--spacing-md);
    margin-right: auto;
    margin-left: auto;
    width: 100%;
}

@media (max-width: 768px) {
    .container-advanced,
    .container-fluid-advanced {
        padding-right: var(--spacing-sm);
        padding-left: var(--spacing-sm);
    }
}

/* Visibility Utilities */
.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;
}

.not-sr-only {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* Focus States for Accessibility (WCAG 2.1 AA) */
*:focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 3px;
    border-radius: var(--radius-xs);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 2px;
}

/* Skip to main content - Accessibility */
.skip-to-main {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent-gold);
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    font-weight: 600;
    border-radius: 0 0 var(--radius-md) 0;
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
}

.skip-to-main:focus {
    top: 0;
    outline: none;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .navbar-nav-advanced {
        transition: none;
    }
    
    .navbar-overlay {
        transition: none;
    }
    
    .theme-toggle i {
        transform: none !important;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .navbar-advanced {
        border-bottom-width: 2px;
    }
    
    .nav-link-advanced:hover,
    .nav-link-advanced:focus-visible {
        outline-width: 3px;
    }
}

/* Print Styles */
@media print {
    .navbar-advanced,
    .theme-toggle,
    .navbar-toggler-advanced {
        display: none;
    }
}

/* ============================================
   BUTTONS - Professional & Accessible
   ============================================ */

.btn-advanced {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn-advanced:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-advanced:focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 3px;
}

/* Primary Button */
.btn-primary-advanced {
    background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-light) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary-advanced:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-primary-advanced:active {
    transform: translateY(0);
}

/* Secondary Button */
.btn-secondary-advanced {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary-advanced:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

/* Outline Button */
.btn-outline-advanced {
    background: transparent;
    color: var(--accent-gold);
    border-color: var(--accent-gold);
}

.btn-outline-advanced:hover {
    background: var(--accent-gold);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Ghost Button */
.btn-ghost-advanced {
    background: transparent;
    color: var(--text-secondary);
    border-color: transparent;
}

.btn-ghost-advanced:hover {
    background: var(--bg-secondary);
    color: var(--accent-gold);
}

/* Button Sizes */
.btn-sm-advanced {
    padding: 0.5rem 1rem;
    font-size: var(--text-sm);
}

.btn-lg-advanced {
    padding: 1rem 2rem;
    font-size: var(--text-lg);
}

/* Button with Icon */
.btn-advanced i {
    font-size: 1.1em;
}

/* ============================================
   CARDS - Modern & Clean
   ============================================ */

.card-advanced {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card-advanced:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-header-advanced {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.card-body-advanced {
    padding: var(--spacing-lg);
}

.card-footer-advanced {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* Card Variants */
.card-elevated-advanced {
    border: none;
    box-shadow: var(--shadow-lg);
}

.card-bordered-advanced {
    border-width: 2px;
}

.card-glass-advanced {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .card-glass-advanced {
    background: rgba(30, 41, 59, 0.7);
    border-color: rgba(255, 255, 255, 0.1);
}

/* ============================================
   FORMS - Accessible & Beautiful
   ============================================ */

.form-group-advanced {
    margin-bottom: var(--spacing-md);
}

.form-label-advanced {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--text-primary);
}

.form-label-advanced.required::after {
    content: '*';
    color: var(--error);
    margin-left: 0.25rem;
}

.form-control-advanced {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-control-advanced:hover {
    border-color: var(--accent-blue-light);
}

.form-control-advanced:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.1);
}

.form-control-advanced:disabled {
    background-color: var(--bg-secondary);
    opacity: 0.6;
    cursor: not-allowed;
}

.form-control-advanced::placeholder {
    color: var(--text-muted);
}

/* Form Validation States */
.form-control-advanced.is-valid {
    border-color: var(--success);
}

.form-control-advanced.is-invalid {
    border-color: var(--error);
}

.form-feedback-advanced {
    margin-top: 0.5rem;
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.form-feedback-advanced.valid {
    color: var(--success);
}

.form-feedback-advanced.invalid {
    color: var(--error);
}

/* Select Dropdown */
.form-select-advanced {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23475569' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px;
    padding-right: 3rem;
}

/* Checkbox & Radio */
.form-check-advanced {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.form-check-input-advanced {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-check-input-advanced:checked {
    background-color: var(--accent-gold);
    border-color: var(--accent-gold);
}

.form-check-input-advanced[type="radio"] {
    border-radius: var(--radius-full);
}

.form-check-label-advanced {
    font-size: var(--text-base);
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
}

/* ============================================
   BADGES & TAGS
   ============================================ */

.badge-advanced {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.75rem;
    font-size: var(--text-xs);
    font-weight: 600;
    line-height: 1.5;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary-advanced {
    background: var(--accent-gold);
    color: white;
}

.badge-success-advanced {
    background: var(--success);
    color: white;
}

.badge-warning-advanced {
    background: var(--warning);
    color: white;
}

.badge-error-advanced {
    background: var(--error);
    color: white;
}

.badge-info-advanced {
    background: var(--info);
    color: white;
}

.badge-outline-advanced {
    background: transparent;
    border: 2px solid currentColor;
}

/* ============================================
   ALERTS & NOTIFICATIONS
   ============================================ */

.alert-advanced {
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-advanced i {
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.alert-success-advanced {
    background: var(--success-light);
    border-color: var(--success);
    color: var(--success);
}

.alert-warning-advanced {
    background: var(--warning-light);
    border-color: var(--warning);
    color: var(--warning);
}

.alert-error-advanced {
    background: var(--error-light);
    border-color: var(--error);
    color: var(--error);
}

.alert-info-advanced {
    background: var(--info-light);
    border-color: var(--info);
    color: var(--info);
}

/* ============================================
   LOADING & SPINNERS
   ============================================ */

.spinner-advanced {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-gold);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.spinner-sm-advanced {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner-lg-advanced {
    width: 60px;
    height: 60px;
    border-width: 6px;
}

/* ============================================
   TOOLTIPS
   ============================================ */

.tooltip-advanced {
    position: relative;
    display: inline-block;
}

.tooltip-advanced::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) scale(0);
    padding: 0.5rem 0.75rem;
    background: var(--text-primary);
    color: var(--bg-primary);
    font-size: var(--text-xs);
    font-weight: 500;
    white-space: nowrap;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-fast);
    z-index: var(--z-tooltip);
}

.tooltip-advanced::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%) scale(0);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid var(--text-primary);
    opacity: 0;
    transition: all var(--transition-fast);
}

.tooltip-advanced:hover::after,
.tooltip-advanced:hover::before {
    transform: translateX(-50%) scale(1);
    opacity: 1;
}

/* ============================================
   ANIMATIONS & TRANSITIONS
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-normal) ease-out;
}

.animate-fade-in-up {
    animation: fadeInUp var(--transition-normal) ease-out;
}

.animate-fade-in-down {
    animation: fadeInDown var(--transition-normal) ease-out;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* ============================================
   MUSEUM CARD ENHANCEMENTS
   ============================================ */

.museum-card:hover img {
    transform: scale(1.05);
}

.museum-card:hover .museum-overlay {
    opacity: 1;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-gold);
}

[data-theme="dark"] .testimonial-card:hover {
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
}

/* ============================================
   FOOTER - Professional & Visible
   ============================================ */

/* ============================================
   Footer — Global Compact Bar
   ============================================ */

.footer {
    background: linear-gradient(135deg, #0f172a 0%, #0b1220 100%);
    color: #cbd5e1;
    border-top: 1px solid rgba(201, 169, 97, 0.2);
}

.footer .container {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.footer-bar {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 0;
}

.footer-left {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.footer-brand img {
    display: block;
}

.brand-text {
    font-weight: 800;
    letter-spacing: 0.2px;
    background: linear-gradient(135deg, #c9a961 0%, #dfc480 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-divider {
    color: #475569;
}

.brand-tagline {
    color: #94a3b8;
    font-size: 0.9rem;
}

.footer-nav {
    display: inline-flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-nav a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-nav a:hover {
    color: #c9a961;
}

.footer-social {
    display: inline-flex;
    gap: 0.5rem;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(201, 169, 97, 0.12);
    color: #c9a961;
    border: 1px solid rgba(201, 169, 97, 0.25);
    transition: all 0.2s ease;
    text-decoration: none;
}

.footer-social a:hover {
    background: #c9a961;
    color: #0f172a;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(148, 163, 184, 0.15);
}

.legal-links {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.legal-links a {
    color: #7c8ea3;
    text-decoration: none;
    font-size: 0.85rem;
}

.legal-links a:hover {
    color: #c9a961;
}

.copyright {
    margin: 0;
    color: #7c8ea3;
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    .footer-bar {
        grid-template-columns: 1fr;
        text-align: center;
        justify-items: center;
    }
}

[data-theme="dark"] .footer {
    background: linear-gradient(135deg, #000000 0%, #0a0a0a 100%);
}