/* === VARIABLES CSS MODERNISÉES === */
:root {
    /* Couleurs principales */
    --primary-purple: #5017AC;
    --primary-blue: #3F3FE3;
    --secondary-blue: #0b1561;
    --accent-orange: #feca57;
    --accent-red: #ff6b6b;
    --light-peach: #FFDED4;
    --dark-blue: #1a1a2e;
    --darker-blue: #16213e;
    --dark-gray: #313131;
    --medium-gray: #707070;
    --light-gray: #f8f9fa;
    --white: #ffffff;
    --black: #1b1b1b;
    
    /* Couleurs texte pour le thème sombre */
    --text-light: rgba(255, 255, 255, 0.9);
    --text-muted: rgba(255, 255, 255, 0.7);
    --text-dim: rgba(255, 255, 255, 0.5);
    
    /* Bordures et effets glassmorphism */
    --border-light: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(45deg, var(--accent-red), var(--accent-orange));
    --gradient-purple: linear-gradient(45deg, var(--primary-purple), #8b5cf6);
    --gradient-background: linear-gradient(135deg, var(--secondary-blue) 0%, var(--dark-blue) 50%, var(--darker-blue) 100%);
    --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    
    /* Ombres */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.15);
    --shadow-strong: 0 12px 35px rgba(0, 0, 0, 0.2);
    --shadow-purple: 0 8px 25px rgba(80, 23, 172, 0.3);
    --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.25);
    
    /* Border radius */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --border-radius-xl: 25px;
    --border-radius-2xl: 30px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
}

/* === STYLES GÉNÉRAUX MODERNISÉS === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--gradient-background);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
    font-weight: 400;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="rgba(255,255,255,0.02)"><polygon points="0,0 1000,100 1000,0"/></svg>');
    pointer-events: none;
    z-index: -1;
}

/* Navbar Moderne - Compatible avec la nouvelle navbar */
.navbar {
    background: transparent !important;
    padding: 0 !important;
}

.navbar .logo {
    height: 50px;
    max-width: 200px;
    filter: brightness(1.1);
    transition: var(--transition-normal);
}

.navbar .logo:hover {
    transform: translateY(-2px);
}

.navbar .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-size: 16px;
    font-weight: 500;
    padding: 12px 20px !important;
    border-radius: var(--border-radius-md);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.navbar .nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: var(--transition-slow);
}

.navbar .nav-link:hover {
    color: white !important;
    background: rgba(255, 255, 255, 0.1) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

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


/* === CONTENEUR PRINCIPAL === */
.container {
    position: relative;
    z-index: 1;
}

.py-5 {
    padding: var(--spacing-2xl) 0;
}

/* === DESCRIPTION MODERNISÉE === */
.description {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    font-size: 1.2rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    line-height: 1.7;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-soft);
    animation: fadeInDown 0.8s ease-out;
}

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

/* === CARTES D'ÉVÉNEMENTS MODERNISÉES === */
.event-card {
    background: var(--gradient-card);
    border: none;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-normal);
    position: relative;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.6s ease-out;
}

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

.event-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(80, 23, 172, 0.3);
}

.event-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    z-index: 1;
}

.event-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition-slow);
    filter: brightness(0.9);
}

.event-card:hover img {
    transform: scale(1.05);
    filter: brightness(1);
}

.event-card .card-body {
    padding: var(--spacing-lg);
    position: relative;
    z-index: 2;
}

/* === BADGES MODERNISÉS === */
.category-badge {
    background: var(--gradient-purple);
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xs) var(--spacing-sm);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-purple);
    transition: var(--transition-normal);
    animation: slideInLeft 0.8s ease-out;
}

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

.category-badge:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 25px rgba(80, 23, 172, 0.4);
}

.category-badge i {
    font-size: 1rem;
}

/* === TITRES ET TEXTES === */
.card-title {
    font-weight: 700;
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-light);
    font-family: 'Bebas Neue', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.event-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.event-date {
    color: var(--accent-orange);
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
}

.event-date::before {
    content: '📅';
    font-size: 1.1rem;
}

/* === DÉTAILS D'ÉVÉNEMENT === */
.event-details {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

/* === BOUTONS MODERNISÉS === */
.btn-purple {
    background: var(--gradient-purple);
    color: white;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xs) var(--spacing-md);
    border: none;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-purple);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-purple:hover::before {
    left: 100%;
}

.btn-purple:hover {
    background: linear-gradient(45deg, #6a5acd, #9370db);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(80, 23, 172, 0.4);
    color: white;
    text-decoration: none;
}

.btn-register {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-xl);
    text-transform: uppercase;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 1px;
    width: 100%;
    display: block;
    text-align: center;
    text-decoration: none;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-medium);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    font-family: 'Bebas Neue', sans-serif;
}

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

.btn-register:hover::before {
    left: 100%;
}

.btn-register:hover {
    background: linear-gradient(45deg, #ff5252, #ffb300);
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 107, 107, 0.4);
    color: white;
    text-decoration: none;
}

/* === SECTIONS DE DÉTAIL === */
.event-detail-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-medium);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.event-detail-section h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-purple);
    font-family: 'Bebas Neue', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.event-detail-section p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--medium-gray);
    margin-bottom: var(--spacing-lg);
}

/* === INFORMATIONS D'ÉVÉNEMENT === */
.event-info {
    background: linear-gradient(135deg, rgba(80, 23, 172, 0.05), rgba(139, 92, 246, 0.05));
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-lg);
    border: 2px solid rgba(80, 23, 172, 0.1);
    backdrop-filter: blur(10px);
    transition: var(--transition-normal);
}

.event-info:hover {
    border-color: rgba(80, 23, 172, 0.3);
    background: linear-gradient(135deg, rgba(80, 23, 172, 0.08), rgba(139, 92, 246, 0.08));
}

.event-info ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.event-info ul li {
    font-size: 1rem;
    color: var(--primary-purple);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid rgba(80, 23, 172, 0.1);
}

.event-info ul li:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.event-info ul li::before {
    content: '✦';
    color: var(--accent-orange);
    font-weight: bold;
    font-size: 1.2rem;
}

.event-info ul li span {
    font-weight: 700;
    color: var(--black);
    min-width: 120px;
}

/* === PRIX ET FLOAT-END === */
.float-end {
    color: var(--primary-purple);
    font-weight: 700;
    font-size: 1.1rem;
    background: rgba(80, 23, 172, 0.1);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(80, 23, 172, 0.2);
}

/* === PROGRAMME === */
.program {
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.program button {
    background: rgba(255, 255, 255, 0.9);
    color: var(--medium-gray);
    border: 2px solid rgba(112, 112, 112, 0.3);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition-normal);
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.program button:hover {
    background: var(--gradient-purple);
    color: white;
    border-color: var(--primary-purple);
    transform: translateY(-2px);
    box-shadow: var(--shadow-purple);
}

/* === ALERTES MODERNISÉES === */
.alert-info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(147, 197, 253, 0.1));
    border: 2px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--border-radius-lg);
    color: #1e40af;
    padding: var(--spacing-lg);
    font-weight: 600;
    text-align: center;
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.8s ease-out;
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 1200px) {
    .col-md-6 {
        flex: 0 0 85%;
        max-width: 85%;
    }
}

@media (max-width: 992px) {
    .col-md-6 {
        flex: 0 0 95%;
        max-width: 95%;
    }
    
    .event-details {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .event-detail-section {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .py-5 {
        padding: var(--spacing-lg) 0;
    }
    
    .description {
        font-size: 1rem;
        padding: var(--spacing-md);
    }
    
    .event-card .card-body {
        padding: var(--spacing-md);
    }
    
    .event-detail-section {
        padding: var(--spacing-md);
        margin-top: var(--spacing-lg);
    }
    
    .program {
        justify-content: center;
    }
    
    .float-end {
        float: none !important;
        display: block;
        text-align: center;
        margin-top: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .category-badge {
        font-size: 0.75rem;
        padding: 0.3rem 0.8rem;
    }
    
    .card-title {
        font-size: 1.1rem;
    }
    
    .event-title {
        font-size: 1rem;
    }
    
    .btn-purple {
        font-size: 0.8rem;
        padding: 0.4rem 1rem;
    }
    
    .btn-register {
        font-size: 1rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* === ANIMATIONS SUPPLÉMENTAIRES === */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.floating {
    animation: float 3s ease-in-out infinite;
}

/* === ÉTATS DE CHARGEMENT === */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* === ACCESSIBILITÉ === */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

*:focus-visible {
    outline: 2px solid var(--primary-purple);
    outline-offset: 2px;
    border-radius: var(--border-radius-sm);
}