/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 14px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-bg);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    border: 1px solid var(--color-border);
    color: var(--color-text);
    background: transparent;
}

.btn-secondary:hover {
    background: var(--color-surface);
    border-color: var(--color-muted);
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 10px 18px;
    color: var(--color-muted);
    margin-bottom: 36px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    letter-spacing: 0.01em;
    animation: fadeInUp 0.6s ease both;
}

.badge::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-success);
    animation: pulse 2s ease-in-out infinite;
}

/* Cards */
.card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    background: var(--color-surface);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(20px);
}

.card.visible {
    opacity: 1;
    transform: translateY(0);
}

.card:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-muted);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card.visible:hover {
    transform: translateY(-4px);
}

.card--featured {
    border-color: var(--color-accent);
    background: var(--color-surface-hover);
}

/* Domain blocks (Where we can help) */
.domain {
    margin-bottom: var(--space-3xl);
}

.domain:last-child {
    margin-bottom: 0;
}

.domain-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--space-md);
    flex-wrap: wrap;
    padding-bottom: var(--space-sm);
    margin-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.domain-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-top: 4px;
}

.domain-note {
    color: var(--color-muted);
    font-size: var(--font-size-sm);
    text-align: right;
    max-width: 440px;
}

.grid--sub {
    grid-template-columns: repeat(2, 1fr);
}

.card h4 {
    margin-bottom: 10px;
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.card-badge {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-full);
    padding: 4px 10px;
    margin-bottom: 12px;
}

.card-meta {
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: var(--space-md) 0 10px;
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chips--tags {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
}

.chip {
    font-size: var(--font-size-xs);
    color: var(--color-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 5px 12px;
    white-space: nowrap;
}

.chips--tags .chip {
    color: var(--color-accent);
}

.subspec {
    margin: var(--space-sm) 0 0;
}

.subspec > div {
    display: flex;
    gap: 14px;
    padding: 5px 0;
}

.subspec dt {
    color: var(--color-text);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    min-width: 72px;
    flex-shrink: 0;
}

.subspec dd {
    color: var(--color-muted);
    font-size: var(--font-size-sm);
    margin: 0;
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    font-size: 1.2rem;
}

@media (prefers-color-scheme: dark) {
    .card-icon {
        background: #1f2937;
    }
}

.card h3 {
    margin-bottom: 12px;
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.card p {
    color: var(--color-muted);
    line-height: 1.7;
    font-size: var(--font-size-base);
}

.card-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-xs);
}

.card-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.card-list li {
    color: var(--color-muted);
    font-size: var(--font-size-base);
    line-height: 1.8;
    padding-left: 14px;
    position: relative;
}

.card-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.7em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-border);
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}