/* Variables */
:root {
    --primary-color: #4CAF50;
    --primary-dark: #45a049;
    --secondary-color: #2196F3;
    --text-color: #333;
    --text-light: #666;
    --background-light: #f5f5f5;
    --white: #ffffff;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
    --spacing-mobile: 1rem;
    --border-radius: 8px;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--background-light);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Enhanced Mobile Menu */
.menu {
    background-color: var(--white);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.logo i {
    font-size: 1.8rem;
}

/* Improved Mobile Menu */
.menu-icons {
    display: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.menu-icons:active {
    background-color: rgba(0, 0, 0, 0.05);
}

.menu-links {
    display: flex;
    gap: 2rem;
}

.menu-links a {
    text-decoration: none;
    color: var(--text-light);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-radius: var(--border-radius);
}

.menu-links a:hover {
    color: var(--primary-color);
    background-color: rgba(76, 175, 80, 0.1);
}

.admin-link {
    color: var(--secondary-color) !important;
    font-weight: 500;
}

/* Enhanced Mobile Hero Section */
.hero-section {
    text-align: center;
    padding: 3rem var(--spacing-mobile);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    margin-bottom: 2rem;
    border-radius: 0 0 50% 50% / 20px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    animation: rotate 20s linear infinite;
    pointer-events: none;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-section h1 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.hero-section p {
    font-size: clamp(1rem, 3vw, 1.2rem);
    opacity: 0.9;
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

/* Improved Upload Container */
.upload-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-mobile);
}

.upload-area {
    border: 2px dashed var(--primary-color);
    border-radius: var(--border-radius);
    padding: clamp(1rem, 5vw, 2rem);
    text-align: center;
    background-color: var(--white);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.upload-area:hover {
    border-color: var(--primary-dark);
    background-color: rgba(76, 175, 80, 0.05);
}

.upload-area i {
    font-size: clamp(2rem, 8vw, 3rem);
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.upload-area:hover i {
    transform: translateY(-5px);
}

/* Enhanced URL Input */
.url-input-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: var(--white);
    padding: 0.5rem;
    border-radius: var(--border-radius);
    margin-top: 2rem;
    box-shadow: var(--shadow);
    flex-wrap: wrap;
}

.url-input {
    flex: 1;
    min-width: 200px;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.url-input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

/* Improved Buttons */
.upload-btn {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    -webkit-tap-highlight-color: transparent;
    position: relative;
    overflow: hidden;
}

.upload-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%) scale(0);
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.upload-btn:active::after {
    transform: translate(-50%, -50%) scale(2);
}

/* Enhanced Video Section */
.video-section {
    max-width: 800px;
    margin: 2rem auto;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    padding: var(--spacing-mobile);
}

.video-container {
    position: relative;
    padding-top: 56.25%;
    background-color: #000;
    border-radius: var(--border-radius);
    overflow: hidden;
}

#uploadedVideo {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius);
}

/* Enhanced Share Container */
.share-container {
    padding: 1.5rem var(--spacing-mobile);
    border-top: 1px solid #eee;
}

.share-container h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: clamp(1.1rem, 4vw, 1.3rem);
}

.share-link {
    background-color: #f8f8f8;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    word-break: break-all;
    font-family: monospace;
    font-size: 0.9rem;
    border: 1px solid #eee;
}

/* Improved Social Share */
.social-share {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.social-btn {
    width: clamp(40px, 12vw, 50px);
    height: clamp(40px, 12vw, 50px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.social-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%) scale(0);
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.social-btn:active::after {
    transform: translate(-50%, -50%) scale(2);
}

.facebook { background-color: #1877F2; }
.twitter { background-color: #1DA1F2; }
.whatsapp { background-color: #25D366; }

/* Enhanced Features Section */
.features-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: clamp(1rem, 5vw, 2rem);
    padding: clamp(2rem, 8vw, 4rem) var(--spacing-mobile);
    background-color: var(--white);
    margin-top: 4rem;
}

.feature {
    text-align: center;
    padding: clamp(1.5rem, 5vw, 2rem);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.feature i {
    font-size: clamp(2rem, 8vw, 2.5rem);
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Enhanced Footer */
.footer {
    background-color: #333;
    color: var(--white);
    margin-top: auto;
    padding-bottom: env(safe-area-inset-bottom);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: clamp(1.5rem, 5vw, 2rem);
    padding: clamp(2rem, 8vw, 3rem) var(--spacing-mobile);
    max-width: 1200px;
    margin: 0 auto;
}

/* Mobile-First Media Queries */
@media (max-width: 768px) {
    .menu {
        padding: 1rem var(--spacing-mobile);
    }

    .menu-icons {
        display: block;
    }

    .menu-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow);
        gap: 0.5rem;
    }

    .menu-links.active {
        display: flex;
        animation: slideDown 0.3s ease;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .menu-links a {
        padding: 0.8rem;
        width: 100%;
    }

    .url-input-container {
        flex-direction: column;
    }

    .url-input {
        width: 100%;
    }

    .upload-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Safe Area Insets for Modern Mobile Devices */
@supports (padding: max(0px)) {
    .menu {
        padding-left: max(var(--spacing-mobile), env(safe-area-inset-left));
        padding-right: max(var(--spacing-mobile), env(safe-area-inset-right));
    }

    .footer {
        padding-bottom: max(var(--spacing-mobile), env(safe-area-inset-bottom));
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --background-light: #1a1a1a;
        --text-color: #ffffff;
        --text-light: #cccccc;
        --white: #2d2d2d;
    }

    .upload-area {
        border-color: var(--primary-color);
    }

    .share-link {
        background-color: #333;
        border-color: #444;
    }

    .url-input {
        background-color: #333;
        border-color: #444;
        color: var(--text-color);
    }
}

/* Touch Device Optimizations */
@media (hover: none) {
    .upload-btn:hover {
        transform: none;
    }

    .feature:hover {
        transform: none;
    }

    .social-btn:hover {
        transform: none;
    }
}