/* ==========================================================================
   COMPONENT: FAQ accordion — Alpine-driven button + region pattern.
   Smooth height transition via the grid-template-rows 0fr -> 1fr trick.
   ========================================================================== */

/* Section header — keep aligned with the accordion column below */
.bc-faq .bc-section-header {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
    text-align: center;
}
.bc-faq .bc-section-header h2 {
    margin-top: 0.5rem;
}

.bc-faq__list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    max-width: 900px;
    margin: 0 auto;
}

.bc-faq__item {
    background: var(--glass-panel);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg, 16px);
    overflow: hidden;
    transition: border-color var(--duration-base) var(--ease-out, ease),
                box-shadow  var(--duration-base) var(--ease-out, ease),
                transform   var(--duration-fast) var(--ease-out, ease);
}

.bc-faq__item:hover {
    border-color: rgba(253, 224, 71, 0.2);
}

.bc-faq__item.is-open {
    border-color: rgba(253, 224, 71, 0.45);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25),
                0 0 0 1px rgba(253, 224, 71, 0.05),
                0 0 40px rgba(253, 224, 71, 0.04);
}

/* Trigger button */
.bc-faq__trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
    background: transparent;
    border: 0;
    font-family: inherit;
    font-size: var(--text-lg, 1.125rem);
    font-weight: var(--fw-semibold, 600);
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    transition: color var(--duration-fast);
}

.bc-faq__trigger:hover { color: var(--accent-primary); }
.bc-faq__trigger:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: -2px;
    border-radius: var(--radius-lg, 16px);
}

.bc-faq__item.is-open .bc-faq__trigger {
    color: var(--text-primary);
}

.bc-faq__question {
    flex: 1;
    line-height: 1.35;
    letter-spacing: var(--tracking-tight, -0.01em);
}

/* Chevron icon — rotates 180° when open */
.bc-faq__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    color: var(--text-tertiary);
    flex-shrink: 0;
    transition: transform var(--duration-base) cubic-bezier(0.4, 0, 0.2, 1),
                background var(--duration-fast),
                border-color var(--duration-fast),
                color var(--duration-fast);
}

.bc-faq__trigger:hover .bc-faq__icon {
    color: var(--accent-primary);
    border-color: rgba(253, 224, 71, 0.3);
}

.bc-faq__item.is-open .bc-faq__icon {
    transform: rotate(-180deg);
    color: var(--accent-primary);
    border-color: rgba(253, 224, 71, 0.4);
    background: rgba(253, 224, 71, 0.08);
}

/* Smooth open/close via grid-template-rows 0fr -> 1fr.
   The outer wrapper transitions the row track; inner element is overflow:hidden
   with min-height:0 so the natural content height collapses cleanly. */
.bc-faq__answer-wrap {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 320ms cubic-bezier(0.4, 0, 0.2, 1);
}

.bc-faq__item.is-open .bc-faq__answer-wrap {
    grid-template-rows: 1fr;
}

.bc-faq__answer {
    overflow: hidden;
    min-height: 0;
}

.bc-faq__answer-inner {
    padding: 0 1.5rem 1.25rem;
    color: var(--text-secondary);
    line-height: var(--leading-relaxed, 1.65);
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity var(--duration-base) var(--ease-out, ease) 80ms,
                transform var(--duration-base) var(--ease-out, ease) 80ms;
}

.bc-faq__item.is-open .bc-faq__answer-inner {
    opacity: 1;
    transform: translateY(0);
}

.bc-faq__answer-inner p {
    margin: 0;
}
.bc-faq__answer-inner p + p {
    margin-top: 0.75rem;
}
.bc-faq__answer-inner a {
    color: var(--accent-secondary, #22d3ee);
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* Mobile tweaks */
@media (max-width: 640px) {
    .bc-faq__trigger { padding: 1rem 1rem; font-size: var(--text-base, 1rem); }
    .bc-faq__answer-inner { padding: 0 1rem 1rem; font-size: var(--text-sm, 0.9rem); }
    .bc-faq__icon { width: 28px; height: 28px; }
}