:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --background-color: #ffffff;
    --card-background: #ffffff;
    --text-color: #333333;
    --border-color: #dee2e6;
    --hover-color: #0056b3;
    --header-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --container-width: 1200px;
    --spacing-unit: 1rem;
    --border-radius: 8px;
    --transition-speed: 0.3s;
    --scrollbar-width: 10px;
    --scrollbar-track: #f1f1f1;
    --scrollbar-thumb: #c1c1c1;
    --scrollbar-thumb-hover: #a8a8a8;
}

.dark-theme {
    --primary-color: #66b3ff;
    --secondary-color: #9ca3af;
    --background-color: #1a1a1a;
    --card-background: #262626;
    --text-color: #ffffff;
    --border-color: #333333;
    --hover-color: #80bfff;
    --header-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    --scrollbar-track: #1a1a1a;
    --scrollbar-thumb: #4a4a4a;
    --scrollbar-thumb-hover: #666666;
}

::-webkit-scrollbar {
    width: var(--scrollbar-width);
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: var(--border-radius);
    transition: background var(--transition-speed);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

* {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

.custom-scroll {
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

.custom-scroll::-webkit-scrollbar {
    width: var(--scrollbar-width);
}

.custom-scroll::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

.custom-scroll::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: var(--border-radius);
}

.custom-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
        Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

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

header {
    background-color: var(--card-background);
    box-shadow: var(--header-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-emoji {
    font-size: 2rem;
    margin-right: 0.5rem;
}

.nav-items {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-grow: 1;
    justify-content: flex-end;
}

.search-container {
    position: relative;
    flex-grow: 1;
    max-width: 500px;
}

#searchEmoji {
    width: 100%;
    padding: 0.8rem 2.8rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: all var(--transition-speed);
}

#searchEmoji:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.search-container i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary-color);
}

#themeToggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    padding: 0.8rem;
    color: var(--text-color);
    font-size: 1.2rem;
    transition: all var(--transition-speed);
}

#themeToggle:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.hero {
    text-align: center;
    padding: 6rem 0;
    background: linear-gradient(to bottom, var(--primary-color-light), transparent);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-search {
    max-width: 600px;
    margin: 2rem auto;
    position: relative;
}

.hero-search input {
    width: 100%;
    padding: 1.2rem 2rem;
    font-size: 1.2rem;
    border: 3px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--card-background);
    color: var(--text-color);
    transition: all var(--transition-speed);
}

.hero-search input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 5px rgba(0, 123, 255, 0.1);
}

.search-btn {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed);
}

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

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.featured-card {
    background: var(--card-background);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
    transition: all var(--transition-speed);
    border: 2px solid var(--border-color);
}

.featured-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.featured-emoji {
    font-size: 4rem;
    display: block;
    margin-bottom: 1rem;
}

.trending, .latest {
    margin: 4rem 0;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.category-card {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.category-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.category-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.category-card p {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.emoji-card {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: transform var(--transition-speed);
}

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

.emoji-char {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.emoji-desc {
    font-size: 0.8rem;
    color: var(--secondary-color);
}

.emoji-unicode {
    font-size: 0.7rem;
    color: var(--secondary-color);
    margin-top: 0.25rem;
    font-family: monospace;
}

.emoji-card:hover .emoji-unicode {
    color: var(--primary-color);
}

footer {
    background-color: var(--background-color);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-section h3 {
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-color);
    text-decoration: none;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    justify-content: flex-start;
    gap: 1rem;
}

.social-links a {
    font-size: 1.8rem;
    color: var(--text-color);
    transition: color var(--transition-speed);
    display: flex;
    align-items: center;
}

.social-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    animation: slideIn 0.3s ease-out, fadeOut 0.3s ease-out 1.7s forwards;
    z-index: 1000;
}

.toast.success {
    background-color: var(--primary-color);
}

.toast.error {
    background-color: #dc3545;
}

.emoji-keywords {
    font-size: 0.7rem;
    color: var(--secondary-color);
    margin-top: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.emoji-group {
    font-size: 0.7rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-items {
        width: 100%;
        flex-direction: column;
        gap: 1rem;
    }

    .search-container {
        width: 100%;
        max-width: none;
    }

    #themeToggle {
        width: 100%;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

.category-page {
    padding: 2rem 0;
    animation: fadeIn 0.3s ease-out;
}

.category-page h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.category-page p {
    color: var(--secondary-color);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.category-page .emoji-grid {
    margin-top: 2rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.error-message {
    text-align: center;
    padding: 2rem;
    color: var(--text-color);
    background: var(--card-background);
    border-radius: var(--border-radius);
    margin: 2rem 0;
}

.search-results {
    margin: 2rem 0;
}

.search-results h2 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.no-results {
    text-align: center;
    padding: 3rem;
    background: var(--card-background);
    border-radius: var(--border-radius);
    color: var(--secondary-color);
}

.search-results .emoji-grid {
    margin-top: 1rem;
}

.about-page {
    padding: 2rem 0;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeIn 0.3s ease-out;
}

.about-page h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.about-content {
    background: var(--card-background);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.about-content h2 {
    font-size: 1.8rem;
    margin: 2rem 0 1rem;
    color: var(--primary-color);
}

.about-content h2:first-child {
    margin-top: 0;
}

.about-content p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.about-content ul {
    list-style: none;
    margin: 1rem 0;
}

.about-content ul li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.about-content ul li::before {
    content: "•";
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

.about-content a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed);
}

.about-content a:hover {
    color: var(--hover-color);
    text-decoration: underline;
}

.social-links {
    display: flex;
    justify-content: flex-start;
    gap: 1rem;
}

.social-links a {
    font-size: 1.8rem;
    color: var(--text-color);
    transition: color var(--transition-speed);
    display: flex;
    align-items: center;
}

.social-links a:hover {
    color: var(--primary-color);
} 

.emoji-detail {
    padding: 3rem 0;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeIn 0.3s ease-out;
}

.emoji-hero {
    text-align: center;
    margin-bottom: 3rem;
}

.emoji-display {
    font-size: 8rem;
    margin-bottom: 1rem;
    animation: scaleIn 0.5s ease-out;
}

.emoji-hero h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.emoji-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.info-card {
    background: var(--card-background);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.info-card h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.info-card code {
    font-family: monospace;
    font-size: 1.1rem;
    color: var(--text-color);
}

.info-card a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed);
}

.info-card a:hover {
    color: var(--hover-color);
    text-decoration: underline;
}

.copy-section {
    text-align: center;
    margin-top: 2rem;
}

.copy-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background var(--transition-speed);
}

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

@keyframes scaleIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.emoji-modifiers {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
}

.modifier {
    cursor: pointer;
    font-size: 1.2rem;
    transition: transform var(--transition-speed);
}

.modifier:hover {
    transform: scale(1.2);
}

.variants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
    margin: 1rem 0 2rem;
}

.variant-card {
    background: var(--card-background);
    padding: 1rem;
    border-radius: var(--border-radius);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 1px solid var(--border-color);
}

.variant-card:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
}

.variant-emoji {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.variant-desc {
    font-size: 0.8rem;
    color: var(--secondary-color);
}