/* ==========================================================================
   BUTTON VARIANTS — new design system
   Base element styles (button, a.btn) remain in button.css (old system).
   This file adds the variant classes used by new DSL pages.
   ========================================================================== */

.btn {
    font-family: var(--font-ui);
    font-size: var(--text-ui);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    text-decoration: none;
    white-space: nowrap;
    min-height: 36px;
    transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.btn--primary {
    background: var(--accent);
    color: #fff;
    border: 1px solid transparent;
}

.btn--primary:hover:not(:disabled) {
    background: #3a6aee;
}

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

.btn--secondary:hover:not(:disabled) {
    background: var(--bg-surface);
    border-color: #3a4060;
}

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

.btn--ghost:hover:not(:disabled) {
    background: var(--bg-raised);
    color: var(--text-primary);
}

.btn--danger {
    background: var(--red);
    color: #fff;
    border: 1px solid transparent;
}

.btn--danger:hover:not(:disabled) {
    background: #cc4545;
}

.btn--sm {
    font-size: var(--text-label);
    padding: 4px 10px;
    min-height: 28px;
}

/* Mobile: 44px minimum tap target for primary actions */
@media (max-width: 768px) {
    .btn--primary {
        min-height: 44px;
    }
}