/**
 * Buttons
 * =======
 */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    text-decoration: none;
    white-space: nowrap;
}

/* Primary — gradient */
.btn-primary {
    background: var(--color-gradient);
    color: var(--color-text-primary);
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: scale(1.02);
    color: var(--color-text-primary);
}

/* Secondary — outline */
.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-default);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Ghost — no border */
.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.btn-ghost:hover {
    color: var(--color-text-primary);
    background: var(--color-surface-hover);
}

/* Size variants */
.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-base);
}

/* Full-width — global (was page-only in pages/app.css). */
.btn-block {
    width: 100%;
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
}

/* A button that has become a verdict.
   ==================================
   After an action succeeds the control stops being an invitation and starts
   being the answer: "✓ Private payments are enabled". It keeps the size and
   place it had, so nothing jumps, but reads as a statement rather than
   something to press — and unlike a line of text further down the page, it is
   exactly where the eye already is. */
.btn.is-done,
.btn.is-done:disabled {
    background: color-mix(in srgb, var(--color-success) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--color-success) 55%, transparent);
    color: var(--color-success);
    cursor: default;
    opacity: 1;
}