/* Variables globales */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #2c3e50;
    --background-color: #f5f6fa;
    --light-bg: #f5f5f7;
    --gradient-start: #1d1d1f;
    --gradient-end: #0071e3;
    --card-bg: rgba(255, 255, 255, 0.8);
    --border-radius: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --card-background: rgba(255, 255, 255, 0.9);
}

/* Reset et styles de base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

@import url('https://fonts.googleapis.com/css2?family=SF+Pro+Display:wght@400;500;600;700&display=swap');

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-weight: 600;
    letter-spacing: -0.5px;
}

/* Header et Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
}

nav {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 20px;
}

.nav-menu li a {
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-menu li a:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.nav-menu li a.active {
    background-color: rgba(0, 0, 0, 0.1);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.5rem;
}

/* Sections principales */
main {
    margin: 0;
    padding: 0;
}

section {
    padding: 6rem 2rem;
}

section h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 4rem;
    color: var(--text-color);
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--secondary-color);
    margin: 1.5rem auto;
    border-radius: 3px;
}

.hero {
    margin: 0;
    padding: 0;
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(29, 29, 31, 0.7), rgba(0, 113, 227, 0.7));
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    font-weight: 700;
}

.hero p {
    font-size: 1.8rem;
    position: relative;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    font-weight: 400;
    opacity: 0.9;
}

/* Section Vidéos */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
    padding: 0 2rem;
}

.video-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.video-card h3 {
    color: var(--text-color);
    margin-bottom: 2rem;
    font-size: 1.8rem;
    font-weight: 600;
}

.video-card video {
    width: 100%;
    border-radius: calc(var(--border-radius) - 10px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Section Informations */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
    padding: 0 2rem;
}

.info-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.info-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.info-card h3 {
    color: var(--text-color);
    margin-bottom: 2rem;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
}

.info-card h3 i {
    color: var(--secondary-color);
    font-size: 2rem;
}

.info-card ul {
    list-style: none;
}

.info-card li {
    margin-bottom: 1.2rem;
    padding-left: 1.5rem;
    position: relative;
    font-size: 1.1rem;
}

.info-card li::before {
    content: '•';
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    font-size: 1.5rem;
}

.code {
    font-family: 'SF Mono', monospace;
    background: rgba(0, 113, 227, 0.1);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-weight: 500;
    color: var(--secondary-color);
    font-size: 0.9rem;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 3rem;
    margin-top: 4rem;
}

footer p {
    font-size: 1.1rem;
    opacity: 0.8;
}

/* Widget Météo */
.weather-widget {
    position: fixed;
    right: 20px;
    top: 80px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
    border-radius: 15px;
    padding: 10px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    z-index: 1001;
}

.weather-temp {
    color: white;
    font-size: 1.4em;
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Système d'onglets */
.tabs-container {
    margin-top: 2rem;
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.tab-button {
    background: var(--card-bg);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.tab-button:hover {
    background: var(--secondary-color);
    color: white;
}

.tab-button.active {
    background: var(--secondary-color);
    color: white;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-pane.active {
    display: block;
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        padding: 0.5rem;
    }
    
    .nav-menu {
        gap: 5px;
        padding: 0 10px;
    }
    
    .nav-menu li a {
        font-size: 0.85rem;
        padding: 5px 10px;
        white-space: nowrap;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero p {
        font-size: 1.4rem;
    }

    section {
        padding: 4rem 1rem;
    }

    section h2 {
        font-size: 2.5rem;
    }

    .video-grid,
    .info-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 1rem;
    }

    .video-card,
    .info-card {
        padding: 2rem;
    }

    .weather-widget {
        right: 10px;
        top: 70px;
        width: 50px;
        height: 50px;
    }
    
    .weather-temp {
        font-size: 1.2em;
    }

    .tabs {
        flex-direction: column;
        align-items: center;
    }

    .tab-button {
        width: 100%;
        max-width: 300px;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.video-card,
.info-card {
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Effet de glassmorphisme */
.glass-effect {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Application Météo */
.weather-app {
    position: relative;
    margin-top: 100px;
    z-index: 1;
    padding: 0 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: calc(100vh - 100px);
}

.weather-header {
    margin-top: 30px;
    padding: 25px;
    background: var(--card-background);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.weather-header h1 {
    color: var(--primary-color);
    font-size: 2.5em;
    margin-bottom: 15px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.current-temp {
    font-size: 3.5em;
    color: var(--accent-color);
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.weather-description {
    font-size: 1.4em;
    color: var(--primary-color);
    margin: 10px 0;
    font-weight: 500;
}

.temp-range {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 1.2em;
}

.weather-main {
    margin-top: 20px;
}

.detail-card {
    margin-bottom: 20px;
    padding: 20px;
    background: var(--card-background);
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: transform 0.3s ease;
}

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

.detail-card h2 {
    color: var(--primary-color);
    font-size: 1.3em;
    margin-bottom: 15px;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 8px;
}

.hourly-scroll {
    background: rgba(255, 255, 255, 0.7);
    border-radius: 15px;
    padding: 15px;
    margin: 20px 0;
}

.hourly-scroll::-webkit-scrollbar {
    height: 8px;
}

.hourly-scroll::-webkit-scrollbar-track {
    background: #f0f0f0;
    border-radius: 4px;
}

.hourly-scroll::-webkit-scrollbar-thumb {
    background: #666;
    border-radius: 4px;
}

.hourly-item {
    background: var(--card-background);
    border-radius: 10px;
    padding: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: transform 0.3s ease;
}

.hourly-item:hover {
    transform: scale(1.05);
}

.hourly-item .temp {
    color: var(--accent-color);
    font-weight: bold;
    font-size: 1.2em;
}

.hourly-item .hour {
    color: var(--secondary-color);
    font-weight: 500;
}

.hourly-item img {
    width: 40px;
    height: 40px;
    margin: 0.5rem 0;
}

/* Ajustements responsifs */
@media (max-width: 768px) {
    .weather-app {
        margin-top: 80px;
    }
    
    .weather-header {
        margin-top: 20px;
        padding: 15px;
    }
    
    .weather-header h1 {
        font-size: 2em;
    }
}