* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 30px;
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.header-content h1 {
    font-size: 2.5rem;
    color: #FF0000;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.header-content p {
    font-size: 1.1rem;
    color: #666;
}

/* Share Section */
.share-section {
    margin-bottom: 30px;
}

.share-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.share-card h2 {
    color: #333;
    margin-bottom: 25px;
    font-size: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.9);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #FF0000;
    box-shadow: 0 0 0 3px rgba(255, 0, 0, 0.1);
    transform: translateY(-2px);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.btn-share {
    width: 100%;
    padding: 15px;
    background: linear-gradient(45deg, #FF0000, #CC0000);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-share:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 0, 0, 0.3);
}

.btn-share:active {
    transform: translateY(0);
}

/* Feed Section */
.feed-section {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.feed-section h2 {
    color: #333;
    margin-bottom: 25px;
    font-size: 1.5rem;
    text-align: center;
}

/* Link Card */
.link-card {
    background: #fff;
    border: 1px solid #e1e5e9;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.link-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.link-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.link-header .user-name {
    font-weight: 600;
    color: #333;
    margin-right: 10px;
}

.link-header .timestamp {
    color: #888;
    font-size: 0.9rem;
}

.link-note {
    margin-bottom: 15px;
    color: #555;
    line-height: 1.5;
}

.youtube-embed {
    margin-bottom: 15px;
    border-radius: 8px;
    overflow: hidden;
}

.youtube-embed iframe {
    width: 100%;
    height: 315px;
    border: none;
}

.link-actions {
    display: flex;
    gap: 15px;
    padding-top: 15px;
    border-top: 1px solid #e1e5e9;
}

.action-btn {
    background: none;
    border: none;
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.like-btn {
    color: #666;
}

.like-btn:hover,
.like-btn.liked {
    background: rgba(255, 0, 0, 0.1);
    color: #FF0000;
}

.comment-btn {
    color: #666;
}

.comment-btn:hover {
    background: rgba(0, 123, 255, 0.1);
    color: #007bff;
}

/* Comments Section */
.comments-section {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #e1e5e9;
}

.comment-form {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.comment-form input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 20px;
    font-size: 0.9rem;
}

.comment-form button {
    padding: 8px 15px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
}

.comment-form button:hover {
    background: #0056b3;
}

.comment {
    background: #f8f9fa;
    padding: 10px 15px;
    border-radius: 10px;
    margin-bottom: 10px;
}

.comment-author {
    font-weight: 600;
    color: #333;
    margin-bottom: 5px;
}

.comment-text {
    color: #555;
    font-size: 0.9rem;
}

/* Loading Spinner */
.loading-spinner {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    display: none;
}

.loading-spinner i {
    font-size: 2rem;
    color: #FF0000;
    margin-bottom: 10px;
}

/* Success Message */
.success-message {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #28a745;
    color: white;
    padding: 15px 20px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    display: none;
    align-items: center;
    gap: 10px;
    z-index: 1000;
}

.success-message i {
    font-size: 1.2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header-content h1 {
        font-size: 2rem;
    }
    
    .share-card,
    .feed-section {
        padding: 20px;
    }
    
    .youtube-embed iframe {
        height: 200px;
    }
    
    .link-actions {
        flex-wrap: wrap;
    }
}

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

.link-card {
    animation: fadeInUp 0.5s ease;
}