/* Base Styles */
:root {
    --primary-color: #ff6b6b;
    --secondary-color: #ff8e8e;
    --text-color: #333;
    --bg-color: #f9f9f9;
    --card-bg: #ffffff;
    --border-color: #e1e1e1;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --accent-color: #4ecdc4;
    --header-bg: #ffffff;
    --modal-bg: #ffffff;
    --transition: all 0.3s ease;
}

/* Dark Theme */
.dark-theme {
    --primary-color: #ff6b6b;
    --secondary-color: #ff8e8e;
    --text-color: #f5f5f5;
    --bg-color: #1a1a1a;
    --card-bg: #252525;
    --border-color: #444;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --accent-color: #4ecdc4;
    --header-bg: #252525;
    --modal-bg: #252525;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: var(--transition);
}

.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: var(--accent-color);
}

/* Header Styles */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.theme-toggle {
    width: 60px;
    height: 30px;
    background-color: var(--primary-color);
    border-radius: 30px;
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5px;
}

.theme-toggle i {
    color: #fff;
    font-size: 0.8rem;
    z-index: 1;
}

.toggle-ball {
    width: 24px;
    height: 24px;
    background-color: #fff;
    border-radius: 50%;
    position: absolute;
    left: 3px;
    transition: var(--transition);
}

.dark-theme .toggle-ball {
    left: 33px;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('https://images.unsplash.com/photo-1504674900247-0877df9cc836?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1470&q=80');
    background-size: cover;
    background-position: center;
    color: #fff;
    padding: 80px 20px;
    text-align: center;
    border-radius: 0 0 30px 30px;
    margin-bottom: 30px;
}

.hero-content h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.search-container {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
}

#search-input {
    flex: 1;
    padding: 15px 20px;
    border: none;
    border-radius: 30px 0 0 30px;
    font-size: 1rem;
    outline: none;
}

#search-btn {
    padding: 0 25px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 0 30px 30px 0;
    cursor: pointer;
    transition: var(--transition);
}

#search-btn:hover {
    background-color: var(--secondary-color);
}

/* Filter Section */
.filter-section {
    margin-bottom: 30px;
}

.filter-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    padding: 20px 0;
}

.filter-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px;
    background-color: var(--card-bg);
    border-radius: 15px;
    box-shadow: 0 2px 10px var(--shadow-color);
    cursor: pointer;
    transition: var(--transition);
    min-width: 100px;
}

.filter-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.filter-item.active {
    background-color: var(--primary-color);
}

.filter-item.active i,
.filter-item.active span {
    color: #fff;
}

.filter-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

/* Filter Options */
.filter-options {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 2px 10px var(--shadow-color);
    margin-bottom: 30px;
}

.filter-options h3 {
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.5rem;
}

.category-list, .ingredient-list {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.category-item, .ingredient-item {
    background-color: var(--primary-color);
    color: #fff;
    padding: 10px 20px;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
}

.category-item:hover, .ingredient-item:hover {
    background-color: var(--secondary-color);
    transform: scale(1.05);
}

.ingredient-search {
    margin-bottom: 20px;
    text-align: center;
}

#ingredient-search-input {
    padding: 10px 20px;
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border-color);
    border-radius: 30px;
    font-size: 1rem;
    outline: none;
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Results Section */
.results-section {
    margin-bottom: 50px;
}

.results-section h2 {
    margin-bottom: 20px;
    text-align: center;
    font-size: 2rem;
}

.results-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.recipe-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 3px 15px var(--shadow-color);
    transition: var(--transition);
    position: relative;
}

.recipe-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

.recipe-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.recipe-info {
    padding: 20px;
}

.recipe-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.recipe-category {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.recipe-origin {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.recipe-buttons {
    display: flex;
    gap: 10px;
}

.recipe-btn {
    padding: 8px 15px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
    flex: 1;
    text-align: center;
}

.recipe-btn:hover {
    background-color: var(--secondary-color);
}

.favorite-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: rgba(255, 255, 255, 0.8);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.favorite-btn i {
    color: #ccc;
    font-size: 1.2rem;
    transition: var(--transition);
}

.favorite-btn.active i {
    color: var(--primary-color);
}

.favorite-btn:hover {
    background-color: #fff;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    overflow-y: auto;
}

.modal-content {
    background-color: var(--modal-bg);
    margin: 50px auto;
    padding: 30px;
    width: 90%;
    max-width: 800px;
    border-radius: 15px;
    position: relative;
    transition: var(--transition);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-color);
}

.recipe-detail {
    margin-top: 20px;
}

.recipe-detail-img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 20px;
}

.recipe-detail-title {
    font-size: 2rem;
    margin-bottom: 10px;
}

.recipe-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.recipe-tag {
    background-color: var(--accent-color);
    color: #fff;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
}

.recipe-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.recipe-meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.recipe-meta-item i {
    color: var(--primary-color);
}

.recipe-ingredients, .recipe-instructions {
    margin-bottom: 30px;
}

.recipe-section-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

.ingredients-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
}

.ingredient-item-detail {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--bg-color);
    padding: 10px;
    border-radius: 5px;
}

.ingredient-icon {
    width: 30px;
    height: 30px;
    object-fit: cover;
    border-radius: 5px;
}

.ingredient-text {
    font-size: 0.9rem;
}

.instructions-text {
    line-height: 1.8;
    white-space: pre-line;
}

.recipe-video {
    margin-top: 30px;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    margin-top: 20px;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 10px;
}

/* Loading and No Results */
.loading, .no-results {
    text-align: center;
    padding: 50px 0;
}

.loading i, .no-results i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.loading-spinner {
    display: inline-block;
    position: relative;
    width: 80px;
    height: 80px;
    margin-bottom: 15px;
}

.loading-spinner div {
    position: absolute;
    top: 33px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: var(--primary-color);
    animation-timing-function: cubic-bezier(0, 1, 1, 0);
}

.loading-spinner div:nth-child(1) {
    left: 8px;
    animation: loading-spinner1 0.6s infinite;
}

.loading-spinner div:nth-child(2) {
    left: 8px;
    animation: loading-spinner2 0.6s infinite;
}

.loading-spinner div:nth-child(3) {
    left: 32px;
    animation: loading-spinner2 0.6s infinite;
}

.loading-spinner div:nth-child(4) {
    left: 56px;
    animation: loading-spinner3 0.6s infinite;
}

@keyframes loading-spinner1 {
    0% {
        transform: scale(0);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes loading-spinner3 {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(0);
    }
}

@keyframes loading-spinner2 {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(24px, 0);
    }
}

/* Footer */
footer {
    margin-top: 50px;
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .results-container {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .recipe-detail-title {
        font-size: 1.5rem;
    }
    
    .recipe-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .ingredients-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.2rem;
    }
    
    .filter-container {
        gap: 10px;
    }
    
    .filter-item {
        padding: 10px;
        min-width: 80px;
    }
    
    .filter-item i {
        font-size: 1.2rem;
    }
    
    .filter-item span {
        font-size: 0.8rem;
    }
    
    .modal-content {
        padding: 20px;
        margin: 20px auto;
    }
}