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

:root {
    --font-family: 'Inter', sans-serif;
    --primary-color: #4a90e2;
    --text-color: #333;
    --light-text-color: #666;
    --bg-color: #f8f9fa;
    --card-bg-color: #ffffff;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.05);
    --border-radius: 12px;
    --transition-speed: 0.3s;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

/* Header */
header {
    background-color: var(--card-bg-color);
    padding: 1.5rem;
    box-shadow: 0 4px 12px var(--shadow-color);
    border-bottom: 1px solid var(--border-color);
}

h1 {
    text-align: center;
    color: var(--text-color);
    font-weight: 700;
}

/* Main content */
main {
    max-width: 1200px;
    margin: 2.5rem auto;
    padding: 0 1.5rem;
}

/* Tabs */
.tab-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg-color);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: all var(--transition-speed) ease;
    font-weight: 500;
}

.tab-btn:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.tab-btn.active {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 4px 8px rgba(74, 144, 226, 0.2);
}

/* Tool content */
.tool-content {
    background-color: var(--card-bg-color);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: 0 8px 24px var(--shadow-color);
    border: 1px solid var(--border-color);
}

.tool-info {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1rem 2rem;
    align-items: center;
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
}

.tool-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    grid-row: 1 / span 4;
    align-self: start;
}

.tool-name {
    font-size: 2.25rem;
    color: var(--text-color);
    font-weight: 700;
    grid-column: 2;
    align-self: end;
}

.tool-keywords {
    grid-column: 2;
}

.tool-keywords span {
    display: inline-block;
    background-color: #eaf2fd;
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 16px;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.tool-category {
    display: inline-block;
    background-color: #f1f3f5;
    color: var(--light-text-color);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-weight: 500;
    margin: 0;
    grid-column: 2;
}

.tool-website {
    display: inline-flex;
    align-items: center;
    padding: 0.6rem 1.2rem;
    background-color: var(--primary-color);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-speed) ease;
    margin: 0;
    font-weight: 600;
    grid-column: 2;
    width: fit-content;
}

.tool-website:hover {
    background-color: #3a7ac8;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(74, 144, 226, 0.3);
}

.tool-description {
    display: none;
}

/* Video section */
.month-selector {
    margin-bottom: 2rem;
}

.month-selector select {
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-left: 0.5rem;
    background-color: var(--card-bg-color);
}

.video-grid h3 {
    grid-column: 1 / -1;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 600;
}

.total-views {
    grid-column: 1 / -1;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--light-text-color);
}

.video-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.video-card {
    background-color: var(--card-bg-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 12px var(--shadow-color);
    border: 1px solid var(--border-color);
    transition: all var(--transition-speed) ease;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.video-card a {
    text-decoration: none;
    color: inherit;
}

.thumbnail-container {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.video-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed) ease;
}

.video-card:hover .video-thumbnail {
    transform: scale(1.05);
}

.video-info {
    padding: 1.25rem;
}

.video-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-color);
    line-height: 1.4;
    height: 2.8em; /* Limit to 2 lines */
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--light-text-color);
}

/* Footer */
footer {
    text-align: center;
    padding: 2.5rem;
    background-color: var(--card-bg-color);
    margin-top: 2.5rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.related-topics {
    display: none !important;
}

.related-topics h3 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.related-topics ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.related-topics li {
    background-color: #f1f3f5;
    color: var(--light-text-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.resource-links {
    margin-bottom: 2rem;
}

.resource-links h3 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.resource-links ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.resource-links li a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.resource-links li a:hover {
    text-decoration: underline;
}

/* Resources page */
.resource-section {
    margin-bottom: 2.5rem;
    padding: 2rem;
    background-color: var(--card-bg-color);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 24px var(--shadow-color);
    border: 1px solid var(--border-color);
}

.resource-section h2 {
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.resource-section ul {
    list-style: none;
    padding: 0;
}

.resource-section li {
    margin-bottom: 1rem;
}

.resource-section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.resource-section a:hover {
    text-decoration: underline;
}

/* Responsive design */
@media (max-width: 768px) {
    .tab-buttons {
        flex-direction: column;
    }
    
    .tool-info {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .tool-logo {
        grid-row: 1;
        margin: 0 auto 1rem;
    }

    .tool-name, .tool-keywords, .tool-category, .tool-website {
        grid-column: 1;
    }

    .tool-website {
        margin: 0 auto;
    }
}