/* Modern UI Enhancements - Professional UX Design */

/* Variables CSS pour cohérence */
:root {
    --primary-gold: #FFD700;
    --primary-orange: #FF8C00;
    --primary-blue: #0a1c3a;
    --secondary-blue: #1e3a5f;
    --accent-light: #f8f9fa;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 8px 25px rgba(0,0,0,0.15);
    --shadow-heavy: 0 15px 35px rgba(0,0,0,0.2);
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Typographie moderne */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Playfair+Display:wght@400;500;600;700&display=swap');

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-dark);
    scroll-behavior: smooth;
}

/* Amélioration de la navigation */
.navbar {
    background: rgba(10, 28, 58, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 215, 0, 0.2);
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-light);
}

.navbar.scrolled {
    background: rgba(10, 28, 58, 0.98) !important;
    box-shadow: var(--shadow-medium);
}

.navbar-brand {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--primary-gold) !important;
    transition: all var(--transition-fast);
}

.navbar-brand:hover {
    transform: scale(1.05);
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.navbar-nav .nav-link {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9) !important;
    padding: 0.8rem 1.2rem !important;
    margin: 0 0.2rem;
    border-radius: var(--border-radius);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.navbar-nav .nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.2), transparent);
    transition: left var(--transition-medium);
}

.navbar-nav .nav-link:hover::before {
    left: 100%;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-gold) !important;
    background: rgba(255, 215, 0, 0.1);
    transform: translateY(-2px);
}

/* Boutons modernes */
.btn-modern {
    padding: 12px 32px;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary-modern {
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-orange));
    color: var(--primary-blue);
    box-shadow: var(--shadow-medium);
}

.btn-primary-modern:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(255, 215, 0, 0.4);
    color: var(--primary-blue);
}

.btn-secondary-modern {
    background: transparent;
    border: 2px solid var(--primary-gold);
    color: var(--primary-gold);
}

.btn-secondary-modern:hover {
    background: var(--primary-gold);
    color: var(--primary-blue);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* Cards modernes */
.card-modern {
    background: white;
    border-radius: var(--border-radius-lg);
    border: none;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-medium);
    overflow: hidden;
    position: relative;
}

.card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-gold), var(--primary-orange));
    transform: scaleX(0);
    transition: transform var(--transition-medium);
}

.card-modern:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
}

.card-modern:hover::before {
    transform: scaleX(1);
}

.card-modern .card-body {
    padding: 2rem;
}

.card-modern .card-title {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.card-modern .card-text {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

/* Sections modernes */
.section-modern {
    padding: 6rem 0;
    position: relative;
}

.section-modern.bg-light {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.section-modern .container {
    position: relative;
    z-index: 2;
}

/* Titres modernes */
.title-modern {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.title-modern::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-gold), var(--primary-orange));
    border-radius: 2px;
}

.subtitle-modern {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Animations et micro-interactions */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-fade-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-slide-left {
    animation: slideInLeft 0.6s ease-out;
}

.animate-slide-right {
    animation: slideInRight 0.6s ease-out;
}

.animate-scale {
    animation: scaleIn 0.6s ease-out;
}

/* Intersection Observer classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s ease-out;
}

.slide-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.6s ease-out;
}

.slide-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Loading states */
.loading-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Hover effects modernes */
.hover-lift {
    transition: transform var(--transition-medium);
}

.hover-lift:hover {
    transform: translateY(-5px);
}

.hover-glow {
    transition: all var(--transition-medium);
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
}

/* Focus states pour accessibilité */
.btn-modern:focus,
.nav-link:focus {
    outline: 3px solid rgba(255, 215, 0, 0.5);
    outline-offset: 2px;
}

/* Responsive design */
@media (max-width: 768px) {
    .section-modern {
        padding: 4rem 0;
    }
    
    .card-modern .card-body {
        padding: 1.5rem;
    }
    
    .btn-modern {
        padding: 10px 24px;
        font-size: 0.9rem;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .card-modern {
        background: #1a1a1a;
        color: #e0e0e0;
    }
    
    .card-modern .card-title {
        color: var(--primary-gold);
    }
}

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