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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.search-container {
    max-width: 600px;
    margin: 0 auto 30px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

#searchInput {
    flex: 1;
    min-width: 200px;
    padding: 12px 20px;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    outline: none;
    transition: transform 0.3s, box-shadow 0.3s;
}

#searchInput:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

#categoryFilter {
    padding: 12px 20px;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    background: white;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    outline: none;
    transition: transform 0.3s, box-shadow 0.3s;
}

#categoryFilter:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 15px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 10px;
}

.emoji-card {
    background: white;
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.emoji-card:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.emoji-card:active {
    transform: translateY(-2px) scale(1.02);
}

.emoji {
    font-size: 2.5rem;
    margin-bottom: 8px;
    display: block;
}

.emoji-name {
    font-size: 0.85rem;
    color: #666;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 16px;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }

    .emoji-grid {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
        gap: 10px;
    }

    .emoji {
        font-size: 2rem;
    }

    .search-container {
        flex-direction: column;
        align-items: stretch;
    }

    #searchInput, #categoryFilter {
        min-width: 100%;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .emoji-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
        gap: 8px;
    }

    .emoji {
        font-size: 1.8rem;
    }

    .emoji-name {
        font-size: 0.75rem;
    }
}

footer {
    text-align: center;
    color: white;
    padding: 30px 20px;
    margin-top: 40px;
    opacity: 0.8;
    font-size: 0.9rem;
}

.scroll-buttons {
    position: fixed;
    right: 20px;
    bottom: 100px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 100;
}

.scroll-btn {
    width: 45px;
    height: 45px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    color: #667eea;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
}

.scroll-btn.show {
    opacity: 1;
    visibility: visible;
}

.scroll-btn:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.scroll-btn:active {
    transform: translateY(0);
}