/* Newspaper-inspired Aesthetic with Dark Mode */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700&family=Roboto:wght@400;700&display=swap');

:root {
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Roboto', sans-serif;
    
    /* Light Mode Variables */
    --color-background: #f9f8f6;
    --color-text: #333;
    --color-border: #ddd;
    --color-accent: #a0522d;
    --color-card-bg: #fff;
    --color-header-bg: transparent;
    --shadow-color: rgba(0,0,0,0.07);
    
    /* Difficulty colors */
    --easy-color: #4CAF50;
    --medium-color: #FF9800;
    --hard-color: #F44336;
    
    /* Spacing variables */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --border-radius: 8px;
    --transition-all: all 0.1s ease; /* Reduced for performance */
    --header-height: 10rem; /* Added for sticky header */
}

html {
    scroll-padding-top: var(--header-height);
    scroll-behavior: auto; /* Disable smooth scrolling */
}

body.dark-mode {
    /* Dark Mode Variables */
    --color-background: #2c2c2c;
    --color-text: #f1f1f1;
    --color-border: #555;
    --color-accent: #d2b48c;
    --color-card-bg: #3a3a3a;
    --color-header-bg: #333;
    --shadow-color: rgba(255,255,255,0.1);
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    transition: var(--transition-all);
    margin: 0;
    padding: 0;
    position: relative; /* Needed for pseudo-element positioning */
    z-index: 1; /* Ensure content is above pseudo-element */
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('background.png');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    opacity: 0.15; /* Default opacity for light mode (15%) */
    z-index: -1; /* Place behind content */
}

body.dark-mode::before {
    opacity: 0.05; /* 5% opacity for dark mode */
}

/* Icon inversion for dark mode */
body.dark-mode .header-icon,
body.dark-mode .theme-icon,
body.dark-mode .filter-icon,
body.dark-mode .serves-icon,
body.dark-mode .bookmark-icon,
body.dark-mode .section-icon,
body.dark-mode .pair-icon,
body.dark-mode .search-icon {
    filter: invert(1);
}

body.dark-mode::before {
    /* Removed filter: invert(1); */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
    border-bottom: 2px solid var(--color-border);
    /* Removed position: sticky and top: 0 */
    background-color: var(--color-background);
    z-index: 10;
    width: 100%;
    box-shadow: 0 2px 10px var(--shadow-color);
}

#theme-toggle {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-accent);
    transition: var(--transition-all);
}

#theme-toggle:hover {
    transform: rotate(15deg);
    opacity: 0.8;
}

h1 {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 3.5rem;
    margin-bottom: var(--spacing-xs);
    letter-spacing: 1px;
    text-shadow: 2px 2px 4px var(--shadow-color);
}

.header-logo {
    max-width: 150px; /* Adjust as needed */
    height: auto;
    margin-bottom: var(--spacing-sm);
}

.header-audio {
    width: 100%;
    max-width: 300px; /* Adjust as needed */
    margin-top: var(--spacing-sm);
}

header p {
    font-size: 1.1rem;
    color: #888;
    max-width: 800px;
    margin: 0 auto;
    font-style: italic;
}

.header-icon {
    width: 3.5rem;
    height: 3.5rem;
    vertical-align: middle;
    margin-right: var(--spacing-sm);
    color: var(--color-accent);
    filter: drop-shadow(1px 1px 2px var(--shadow-color));
}

.filters {
    margin-top: var(--spacing-lg);
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-tip {
    font-size: 0.9rem;
    color: var(--color-text);
    margin-top: var(--spacing-sm);
    font-style: italic;
}

.action-buttons {
    margin-top: var(--spacing-md);
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.action-buttons button {
    background-color: var(--color-accent);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition-all);
    box-shadow: 0 3px 10px var(--shadow-color);
}

.action-buttons button:hover {
    background-color: #8b4513;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

.filter-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    border: 1px solid var(--color-border);
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius);
    background-color: var(--color-card-bg);
    box-shadow: 0 2px 5px var(--shadow-color);
    transition: var(--transition-all);
}

.filter-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.filter-icon {
    width: 1.2rem;
    height: 1.2rem;
    color: var(--color-text);
}

#search-input, #category-filter {
    border: none;
    background: transparent;
    color: var(--color-text);
    font-family: var(--font-sans);
    padding: 0.25rem;
    min-width: 150px;
}

#search-input:focus, #category-filter:focus {
    outline: 1px solid var(--color-accent);
    border-radius: 3px;
}

.content-wrapper {
    display: flex;
    gap: var(--spacing-lg);
    position: relative;
}

.main-content {
    flex: 1;
    margin-bottom: var(--spacing-xl);
}

#recipe-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.recipe-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition-all);
    text-align: left;
    position: relative;
    border-radius: var(--border-radius);
    box-shadow: 0 3px 10px var(--shadow-color);
}

.recipe-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-color);
}

.recipe-card h4 {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-accent);
    border-bottom: 1px dotted var(--color-border);
    padding-bottom: var(--spacing-xs);
}

.recipe-card .category {
    font-size: 0.9rem;
    color: #777;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.recipe-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.difficulty, .dietary-tag, .serves-tag {
    font-size: 0.75rem;
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.difficulty.easy {
    background-color: var(--easy-color);
    color: white;
}

.difficulty.medium {
    background-color: var(--medium-color);
    color: white;
}

.difficulty.hard {
    background-color: var(--hard-color);
    color: white;
}

.dietary-tag {
    background-color: #2196F3;
    color: white;
}

.serves-tag {
    background-color: #9C27B0;
    color: white;
    display: inline-flex;
    align-items: center;
}

.serves-icon {
    width: 0.8rem;
    height: 0.8rem;
    margin-right: 0.25rem;
}

.recipe-card .description {
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.5;
}

.bookmark-icon {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 1.5rem;
    height: 1.5rem;
    cursor: pointer;
    fill: none;
    stroke: #ccc;
    stroke-width: 2;
    transition: var(--transition-all);
    z-index: 2;
}

.recipe-card:hover .bookmark-icon {
    stroke: #999;
    transform: scale(1.1);
}

.bookmark-icon.bookmarked, .bookmark-detail-button.bookmarked {
    fill: #FFD700;
    stroke: #FFD700;
    background-color: #FFD700; /* Highlight background when bookmarked */
    color: #333; /* Darker text for contrast */
}

#az-sidebar {
    width: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding-top: var(--spacing-md);
    position: sticky;
    top: 100px;
    height: calc(100vh - 150px);
    overflow-y: auto;
    border-left: 2px dashed var(--color-border);
    padding-left: var(--spacing-sm);
}

#az-sidebar a {
    text-decoration: none;
    color: var(--color-accent);
    font-weight: bold;
    font-size: 1.1rem;
    transition: var(--transition-all);
    padding: 0.25rem;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#az-sidebar a:hover {
    background-color: var(--color-accent);
    color: var(--color-card-bg);
    transform: scale(1.1);
}

#recipe-detail {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

#back-button {
    margin-bottom: var(--spacing-lg);
    background: var(--color-accent);
    color: #fff;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-all);
    box-shadow: 0 2px 5px var(--shadow-color);
}

#back-button:hover {
    background: #8b4513;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.recipe-content h2 {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    margin-bottom: var(--spacing-xs);
    text-align: center;
    color: var(--color-accent);
    text-shadow: 1px 1px 3px var(--shadow-color);
}

.recipe-content .category {
    font-size: 1rem;
    color: #888;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    font-style: italic;
}

video, audio, .recipe-image {
    width: 100%;
    max-width: 100%;
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px var(--shadow-color);
}

.media-type-indicator {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    padding: 0.75rem;
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-weight: bold;
    justify-content: center;
    box-shadow: 0 2px 5px var(--shadow-color);
}

.media-type-icon {
    width: 1.2rem;
    height: 1.2rem;
    margin-right: 0.5rem;
}

.no-media {
    width: 100%;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text);
    font-style: italic;
    box-shadow: inset 0 0 10px var(--shadow-color);
}

.recipe-info h3 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.5rem;
    color: var(--color-accent);
    display: flex;
    align-items: center;
}

.recipe-info h3 .section-icon {
    margin-right: 0.5rem;
}

.recipe-info p {
    font-size: 1.1rem;
    line-height: 1.7;
}

.full-width-description {
    font-size: 1.2rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    text-align: left;
    padding: var(--spacing-md);
    background-color: var(--color-card-bg);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-accent);
    box-shadow: 0 2px 8px var(--shadow-color);
}

.section-icon {
    width: 1.2rem;
    height: 1.2rem;
    vertical-align: middle;
    margin-right: 0.5rem;
}

.pair-item {
    display: inline-block;
    background-color: var(--color-accent);
    color: white;
    padding: 0.6rem 1rem;
    border-radius: var(--border-radius);
    margin-right: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-all);
    box-shadow: 0 2px 5px var(--shadow-color);
    border: 1px solid rgba(0,0,0,0.1);
}

.pair-item:hover {
    background-color: #8b4513;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

.pair-icon {
    width: 0.8rem;
    height: 0.8rem;
    vertical-align: middle;
    margin-right: 0.25rem;
}

.pairs-with-section {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 2px dashed var(--color-border);
}

.pairs-with-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    justify-content: center;
}

.pairs-with-header h3 {
    margin: 0;
    display: flex;
    align-items: center;
    font-size: 1.6rem;
}

.pairs-with-header img {
    margin-right: 0.5rem;
}

.recommend-button, .search-button, .bookmark-detail-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--color-accent);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: bold;
    cursor: pointer;
    margin-top: var(--spacing-sm);
    transition: var(--transition-all);
    box-shadow: 0 3px 10px var(--shadow-color);
    justify-content: center;
    width: fit-content;
    margin: var(--spacing-md) auto;
}

.recommend-button:hover, .search-button:hover, .bookmark-detail-button:hover {
    background-color: #8b4513;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

.search-icon {
    width: 1.2rem;
    height: 1.2rem;
}

.recommendations-section {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 2px dashed var(--color-border);
}

.recommendations-section h3 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    text-align: center;
    justify-content: center;
}

.recommendations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.recommendations-grid .recipe-card {
    cursor: pointer;
    transition: var(--transition-all);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.recommendations-grid .recipe-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-color);
}

.recommendations-grid .recipe-card .bookmark-icon {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 1.5rem;
    height: 1.5rem;
    cursor: pointer;
    fill: none;
    stroke: #ccc;
    stroke-width: 2;
    transition: var(--transition-all);
    z-index: 2;
}

.recommendations-grid .recipe-card .bookmark-icon:hover {
    stroke: #999;
    transform: scale(1.1);
}

/* Removed duplicate bookmark.bookmarked styling */

.similarity-score {
    font-size: 0.85rem;
    color: #666;
    font-style: italic;
    margin-top: 0.5rem;
    background-color: rgba(160, 82, 45, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius);
    display: inline-block;
    align-self: flex-start;
}

.details-columns {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    margin-top: var(--spacing-lg);
}

.details-text {
    flex: 1;
    min-width: 0;
}

.details-media {
    flex: 1;
    min-width: 0;
    position: sticky;
    top: 2rem;
}

video, .recipe-image {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px var(--shadow-color);
}

.no-media {
    width: 100%;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text);
    font-style: italic;
    box-shadow: inset 0 0 10px var(--shadow-color);
}

#scroll-to-top {
    display: none; /* Hidden by default */
    position: fixed; /* Fixed position */
    bottom: 20px; /* Place at the bottom */
    right: 30px; /* Place at the right */
    z-index: 99; /* Make sure it does not overlap */
    border: none; /* Remove borders */
    outline: none; /* Remove outline */
    background-color: var(--color-accent); /* Set a background color */
    color: white; /* Text color */
    cursor: pointer; /* Add a mouse pointer on hover */
    padding: 15px; /* Some padding */
    border-radius: 10px; /* Rounded corners */
    font-size: 18px; /* Increase font size */
    box-shadow: 0 2px 5px var(--shadow-color);
    transition: opacity 0.3s ease-in-out;
}

#scroll-to-top:hover {
    background-color: #8b4513; /* Darker background on hover */
}

@media (max-width: 768px) {
    .content-wrapper {
        flex-direction: column;
    }
    
    #az-sidebar {
        flex-direction: row;
        width: 100%;
        justify-content: center;
        padding: 0;
        margin-bottom: var(--spacing-lg);
        border-left: none;
        border-top: 2px dashed var(--color-border);
        padding-top: var(--spacing-sm);
        height: auto;
        position: static;
    }
    
    .details-columns {
        flex-direction: column;
    }
    
    .details-media {
        position: static;
    }
    
    .recommendations-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    .recipe-content h2 {
        font-size: 2.2rem;
    }
    
    .recipe-card {
        padding: var(--spacing-sm);
    }
    
    #recipe-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}