.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.search-container {
    max-width: 400px;
    margin: 1rem auto;
    display: flex;
    gap: 0.5rem;
    padding: 0 1rem;
}

.search-container input {
    flex: 1;
    padding: 0.75rem;
    font-size: 0.95rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: var(--background-color);
}

.search-container input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(var(--primary-color-rgb), 0.1);
}

.search-container button {
    padding: 0.5rem;
    font-size: 1.2rem;
    border: none;
    background: none;
    cursor: pointer;
    transition: transform 0.2s ease;
    color: var(--text-color);
    opacity: 0.8;
}

.search-container button:hover {
    transform: scale(1.1);
    opacity: 1;
}

.search-container button:focus {
    outline: none;
    opacity: 1;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

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

.emoji-item {
    font-size: 2.5rem;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s ease;
    user-select: none;
    border-radius: 0.5rem;
    background: var(--background-color);
}

.emoji-item:hover {
    transform: scale(1.1);
}

.emoji-item:active {
    transform: scale(0.95);
}

.emoji-item:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-color);
}

.emoji-item:focus:not(:focus-visible) {
    box-shadow: none;
}

.copy-notification {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 1rem;
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 1000;
    pointer-events: none;
}

.copy-notification.show {
    opacity: 1;
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
    .emoji-item {
        background: rgba(255, 255, 255, 0.03);
    }

    .emoji-item:hover {
        background: rgba(255, 255, 255, 0.06);
    }

    .copy-notification {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(8px);
    }
}

@media (max-width: 768px) {
    .emoji-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 0.8rem;
    }

    .emoji-item {
        font-size: 2.2rem;
        height: 70px;
    }
}

@media (max-width: 480px) {
    .emoji-grid {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
        gap: 0.6rem;
        padding: 0.5rem;
    }

    .emoji-item {
        font-size: 2rem;
        height: 60px;
    }
}