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

:root {
    --primary-color: #ff6b6b;
    --secondary-color: #4ecdc4;
    --dark-bg: #1a1a1a;
    --light-bg: #f5f5f5;
    --card-bg: #ffffff;
    --text-dark: #333333;
    --text-light: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    transition: var(--transition);
}

body.dark-mode {
    --light-bg: #0d0d0d;
    --card-bg: #1a1a1a;
    --text-dark: #f5f5f5;
    --shadow: 0 4px 6px rgba(255, 255, 255, 0.1);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.main-content .container {
    max-width: none;
    padding: 0;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-light);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.control-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.control-btn.active {
    background: rgba(255, 255, 255, 0.4);
    border-color: var(--text-light);
}

.scroll-speed-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    backdrop-filter: blur(10px);
}

.scroll-speed-control label {
    font-size: 0.9rem;
}

#scrollSpeed {
    width: 80px;
}

#speedValue {
    min-width: 20px;
    text-align: center;
}

/* Main Content */
.main-content {
    padding: 0;
    min-height: 100vh;
    background: #000;
}

/* Loader */
.loader-container {
    text-align: center;
    padding: 3rem 0;
}

.loader {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-left-color: var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

/* Videos Container */
.videos-container {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding-top: 90px;
    scroll-snap-type: y mandatory;
}

/* Video Card */
.video-card {
    background: #000;
    border-radius: 0;
    overflow: hidden;
    box-shadow: none;
    transition: var(--transition);
    animation: fadeIn 0.5s ease;
    min-height: calc(100vh - 110px);
    display: flex;
    flex-direction: column;
    scroll-snap-align: start;
    scroll-snap-stop: always;
}

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

.video-card:hover {
    transform: none;
    box-shadow: none;
}

.video-wrapper {
    position: relative;
    width: 100%;
    flex: 1;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-player {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.video-card:hover .video-overlay {
    opacity: 1;
    pointer-events: all;
}

.play-pause-btn {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.play-pause-btn:hover {
    transform: scale(1.1);
    background: rgba(255, 255, 255, 1);
}

/* Video Controls */
.video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 1rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.video-card:hover .video-controls {
    opacity: 1;
}

.video-controls-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.video-title {
    color: white;
    font-size: 0.9rem;
    max-width: 70%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.fullscreen-btn {
    background: transparent;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}

.fullscreen-btn:hover {
    transform: scale(1.2);
}

.video-controls-bottom {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sound-btn {
    background: transparent;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}

.sound-btn:hover {
    transform: scale(1.2);
}

.sound-btn.active {
    color: var(--primary-color);
}

.volume-slider-container {
    display: none;
    align-items: center;
}

.volume-slider-container.show {
    display: flex;
}

.volume-slider {
    width: 80px;
    cursor: pointer;
}

.video-progress {
    flex: 1;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    overflow: hidden;
    cursor: pointer;
}

.progress-bar {
    height: 100%;
    position: relative;
}

.progress-filled {
    height: 100%;
    background: var(--primary-color);
    width: 0%;
    transition: width 0.1s;
}

/* Video Info */
.video-info {
    margin-top: auto;
    padding: 1.2rem 1.5rem 1.6rem;
    background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.85) 90%);
    color: var(--text-light);
}

.video-title-full {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
}

.video-stats {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9rem;
}

.video-stats i {
    margin-right: 0.3rem;
    color: inherit;
}

.like-btn, .share-btn {
    background: rgba(0, 0, 0, 0.4);
    border: none;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
    padding: 0.4rem 0.6rem;
    border-radius: 999px;
}

.like-btn:hover {
    color: var(--primary-color);
    transform: scale(1.2);
}

.like-btn.liked {
    color: var(--primary-color);
}

.share-btn:hover {
    color: var(--secondary-color);
    transform: scale(1.2);
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-color);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    z-index: 999;
}

.scroll-to-top.show {
    display: flex;
}

.scroll-to-top:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s;
}

.modal.show {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    animation: slideIn 0.3s;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: var(--primary-color);
}

.share-options {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.share-option {
    flex: 1;
    min-width: 120px;
    padding: 0.8rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.share-option:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        text-align: center;
    }
    
    .nav-controls {
        justify-content: center;
        width: 100%;
    }
    
    .control-btn span {
        display: none;
    }
    
    .control-btn {
        padding: 0.5rem 0.8rem;
    }
    
    .scroll-speed-control {
        padding: 0.5rem;
    }
    
    .scroll-speed-control label {
        display: none;
    }
    
    #scrollSpeed {
        width: 60px;
    }
    
    .videos-container {
        padding-top: 80px;
    }
    
    .video-card {
        min-height: calc(100vh - 90px);
        border-radius: 0;
    }
    
    .video-controls {
        opacity: 1;
        background: linear-gradient(to top, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.7));
    }
    
    .video-overlay {
        opacity: 1;
        pointer-events: all;
        background: rgba(0, 0, 0, 0.1);
    }
    
    .volume-slider-container {
        display: none !important;
    }
    
    .scroll-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .video-stats {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .share-options {
        flex-direction: column;
    }
    
    .share-option {
        width: 100%;
    }
}

/* Animation des éléments au scroll */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Style pour les navigateurs WebKit */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}