.icon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(75px, 1fr));
    gap: 16px;
}

.icon-card {
    position: relative;
    background: var(--bg-surface);
    border: var(--border-thin);
    border-radius: 2px;
    padding: 16px 8px 12px;
    text-align: center;
    transition: all var(--transition-medium);
}

.icon-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.icon-card:hover .copy-btn {
    opacity: 1;
    transform: translateY(0);
}

.copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    border-radius: 2px;
    cursor: pointer;
    opacity: 1;
    transform: none;
    transition: all var(--transition-fast);
}

.copy-btn svg {
    width: 12px;
    height: 12px;
}

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

@media (min-width: 481px) {
    .copy-btn {
        opacity: 0;
        transform: translateY(-8px);
    }
}

.icon-placeholder {
    width: 32px;
    height: 32px;
    margin: 0 auto 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    border-radius: 2px;
}

.icon-placeholder .icon-display {
    width: 32px;
    height: 32px;
}

.icon-placeholder.loaded {
    background: transparent;
}

.icon-placeholder.loaded .icon-display {
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-title {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    margin: 0;
}

.tool-content {
    padding: 48px 24px;
}

.tool-description {
    font-family: var(--font-mono);
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 600px;
}

@media (max-width: 480px) {
    .icon-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }

    .copy-btn {
        opacity: 0;
        transform: none;
    }

    .icon-card.selected .copy-btn,
    .icon-card:focus-within .copy-btn {
        opacity: 1;
    }
}

.icon-color {
    stroke: var(--text-primary);
}

.accent-color {
    stroke: var(--accent);
}

.color-red {
    stroke: #ef4444;
}

.color-green {
    stroke: #22c55e;
}

.category-title {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 48px 0 24px 0;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--accent);
    grid-column: 1 / -1;
}

.category-title:first-of-type {
    margin-top: 0;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.loading-spinner {
    animation: spin 1s linear infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading-pulse {
    animation: pulse 1.5s ease-in-out infinite;
}

@media (max-width: 768px) {
    .category-title {
        font-size: 20px;
        margin: 32px 0 16px 0;
    }
}