/*
 * Ecko Green button components — Phase 1B
 *
 * Three variants:
 *   .ecko-btn-primary   solid --kelly fill   "Request a Quote", catalog CTAs
 *   .ecko-btn-secondary outlined forest      Hero outlined variant
 *   .ecko-btn-dark      solid --forest-deep  Inside product cards (avoids
 *                                            kelly competing with other accents)
 */

.ecko-btn-primary,
.ecko-btn-secondary,
.ecko-btn-dark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4em;
    padding: 10px 18px;
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 3px;
    border: 0;
    cursor: pointer;
    transition: background-color 150ms cubic-bezier(0.16, 1, 0.3, 1),
                color 150ms cubic-bezier(0.16, 1, 0.3, 1),
                border-color 150ms cubic-bezier(0.16, 1, 0.3, 1);
    min-height: 44px; /* touch target */
}

.ecko-btn-primary {
    background-color: var(--kelly);
    color: var(--paper);
}

.ecko-btn-primary:hover,
.ecko-btn-primary:focus-visible {
    background-color: var(--kelly-hover);
    color: var(--paper);
}

.ecko-btn-secondary {
    background-color: transparent;
    color: var(--forest-deep);
    border: 2px solid var(--forest-deep);
    /* Compensate padding so total visual size matches primary */
    padding: 8px 16px;
}

.ecko-btn-secondary:hover,
.ecko-btn-secondary:focus-visible {
    background-color: var(--forest-deep);
    color: var(--paper);
}

.ecko-btn-dark {
    background-color: var(--forest-deep);
    color: var(--paper);
}

.ecko-btn-dark:hover,
.ecko-btn-dark:focus-visible {
    background-color: var(--forest-mid);
    color: var(--paper);
}

/* Visible focus ring for keyboard users — color + outline together
   (no color-only signal per WCAG AA + a11y principle). */
.ecko-btn-primary:focus-visible,
.ecko-btn-secondary:focus-visible,
.ecko-btn-dark:focus-visible {
    outline: 2px solid var(--ink);
    outline-offset: 2px;
}

/* Dark variant needs the lighter outline color for visible focus contrast
   against --forest-deep (3:1+ required by WCAG 2.4.11). */
.ecko-btn-dark:focus-visible {
    outline-color: var(--paper);
}

/* Secondary's hover/focus background also fills with --forest-deep, so it
   needs the same lighter outline as the dark variant for WCAG 2.4.11. */
.ecko-btn-secondary:focus-visible {
    outline-color: var(--paper);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .ecko-btn-primary,
    .ecko-btn-secondary,
    .ecko-btn-dark {
        transition: none;
    }
}