/* CSS Variables */
:root {
    --primary-bg: #fdfbf7;
    --secondary-bg: #f5f2ea;
    --card-bg: rgba(255, 255, 255, 0.98);
    --search-bg: rgba(255, 255, 255, 0.85);
    --input-bg: #ffffff;
    --border-color: #e8e5de;
    --border-subtle: rgba(0, 0, 0, 0.06);
    --shadow-light: 0 2px 12px rgba(0, 0, 0, 0.04);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --text-description: #4a5568;
    --text-date: #a0aec0;
    
    --button-primary: #4a5568;
    --button-primary-hover: #2d3748;
    --accent-color: #667eea;
    --link-color: #007bff;
    --link-hover: #0056b3;
    
    --error-bg: #fed7d7;
    --error-border: #feb2b2;
    --error-text: #742a2a;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

.wide-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Header */
h1 {
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

h2 {
    color: var(--text-primary);
    margin-top: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

h3 {
    color: var(--text-primary);
    margin-top: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.container > p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

/* Links */
a {
    color: var(--link-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

/* Back Link */
.back-link {
    display: inline-block;
    margin-bottom: 20px;
    color: var(--link-color);
    text-decoration: none;
    padding: 12px 20px;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-light);
    transition: var(--transition-fast);
    font-weight: 500;
}

.back-link:hover {
    background: var(--search-bg);
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
    text-decoration: none;
}

/* Search Bar */
.search-bar {
    display: flex;
    margin-bottom: 30px;
    gap: 12px;
    background: var(--search-bg);
    padding: 20px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-light);
}

.search-bar input {
    flex: 1;
    padding: 16px 20px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--input-bg);
    transition: var(--transition);
    outline: none;
}

.search-bar input:focus {
    border-color: var(--button-primary);
    box-shadow: 0 0 0 3px rgba(73,80,87,0.1);
    transform: translateY(-1px);
}

.search-bar button {
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    background: var(--button-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.search-bar button:hover {
    background: var(--button-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

.search-bar button:active {
    transform: translateY(0);
}

.search-bar .clear-button {
    background: var(--text-muted);
    color: white;
    padding: 16px 24px;
    font-size: 14px;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
}

.search-bar .clear-button:hover {
    background: var(--text-secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

/* Cards */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-light);
    transition: var(--transition-fast);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* Video Container */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    margin-bottom: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
    background: var(--card-bg);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
}

/* Video Info */
.video-info {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    padding: 24px;
    border-radius: var(--radius-xl);
    margin-bottom: 24px;
    box-shadow: var(--shadow-light);
}

.video-info p {
    margin: 12px 0;
    color: var(--text-secondary);
}

.video-info .description {
    font-weight: 500;
    margin-bottom: 15px;
    color: var(--text-description);
    font-size: 1.1rem;
}

/* Transcript Section */
.transcript-section {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    padding: 24px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-light);
}

.transcript-text {
    line-height: 1.8;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: 16px;
}

/* Loading and States */
.loading {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    font-size: 1.1rem;
    margin: 20px 0;
}

.no-results {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    padding: 40px;
    background: var(--search-bg);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
}

.error {
    text-align: center;
    color: var(--error-text);
    background: var(--error-bg);
    padding: 20px;
    border-radius: var(--radius-lg);
    margin: 20px 0;
    font-weight: 500;
    border: 1px solid var(--error-border);
}

/* Result Link */
.result-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

/* Perfect Media Card */
.result {
    margin-bottom: 24px;
    border-radius: var(--radius-xl);
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    transition: var(--transition-fast);
    cursor: pointer;
    position: relative;
}

.result::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--button-primary);
    opacity: 0;
    transition: var(--transition-fast);
}

.result:hover::before {
    opacity: 1;
}

.result:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.result-content {
    display: flex;
    gap: 20px;
    padding: 24px;
}

/* Thumbnail Enhancement */
.thumbnail-container {
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-medium);
    display: flex;
    align-items: center;
    justify-content: center;
}

.thumbnail {
    width: 140px;
    height: 105px;
    object-fit: cover;
    transition: var(--transition-fast);
    display: block;
}

.thumbnail-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.2);
    opacity: 0;
    transition: var(--transition-fast);
}

.result:hover .thumbnail-container::after {
    opacity: 1;
}

.result:hover .thumbnail {
    transform: scale(1.02);
}

/* Play Button Overlay */
.thumbnail-container::before {
    content: '▶';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 20px;
    z-index: 2;
    opacity: 0;
    transition: var(--transition-fast);
}

.result:hover .thumbnail-container::before {
    opacity: 0.9;
}

/* Content Typography */
.text-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.result h3 {
    margin: 0 0 8px 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    letter-spacing: -0.025em;
}

.description {
    color: var(--text-description);
    font-size: 0.9rem;
    font-weight: 400;
    line-height: 1.5;
    margin: 0 0 12px 0;
}

.preview-text {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-top: auto;
    margin-bottom: 8px;
}

.post-date {
    color: var(--text-date);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: auto;
    padding-top: 4px;
    border-top: 1px solid var(--border-subtle);
}

/* External Links */
.external-link {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 500;
}

.external-link:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container, .wide-container {
        padding: 20px 15px;
    }

    h1 {
        font-size: 2rem;
    }

    .search-bar {
        flex-direction: column;
        gap: 15px;
        padding: 20px;
    }

    .search-bar input,
    .search-bar button {
        width: 100%;
    }

    .result-content {
        flex-direction: column;
        gap: 16px;
        padding: 20px;
    }

    .thumbnail {
        width: 100%;
        height: 200px;
        max-width: 350px;
    }

    .thumbnail-container {
        align-self: center;
    }

    .video-info,
    .transcript-section {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .search-bar {
        padding: 15px;
    }

    .result-content {
        padding: 16px;
    }

    .result h3 {
        font-size: 1.1rem;
    }

    .thumbnail {
        height: 180px;
    }

    .video-info,
    .transcript-section {
        padding: 16px;
    }
}