/* ============================================================
   F-SPORT About Section — Accordion
   Mobile-first, white background, premium feel
   ============================================================ */

.fsport-about {
  background-color: #ffffff;
  padding: 32px 16px 48px;
}

.fsport-about__container {
  max-width: 1000px;
  margin: 0 auto;
}

/* ── Accordion list ─────────────────────────────────────────── */
.fsport-about__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ── Each card ──────────────────────────────────────────────── */
.fsport-about__item {
  background: #ffffff;
  border: 1px solid #e8e8e8;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.fsport-about__item:hover {
  box-shadow: 0 3px 14px rgba(0, 0, 0, 0.09);
}

.fsport-about__item.fsport-about__item--open {
  border-color: rgba(192, 57, 43, 0.3);
}

/* ── Trigger button ─────────────────────────────────────────── */
.fsport-about__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 22px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  gap: 16px;
  -webkit-tap-highlight-color: transparent;
  box-sizing: border-box;
}

.fsport-about__trigger:focus-visible {
  outline: 2px solid #c0392b;
  outline-offset: -2px;
  border-radius: 20px;
}

.fsport-about__trigger-text {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #111111;
  line-height: 1.35;
  flex: 1;
}

/* ── +/– icon ───────────────────────────────────────────────── */
.fsport-about__icon {
  font-size: 24px;
  font-weight: 300;
  color: #111111;
  line-height: 1;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
  user-select: none;
  transition: color 0.2s ease;
}

.fsport-about__item--open .fsport-about__icon {
  color: #c0392b;
}

/* ── Collapsible panel — CSS-only max-height trick ───────────── */
.fsport-about__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease;
}

.fsport-about__item--open .fsport-about__panel {
  max-height: 600px; /* lớn hơn nội dung thực để animation chạy đủ */
}

/* ── Content text ────────────────────────────────────────────── */
.fsport-about__content {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 15px;
  color: #444444;
  line-height: 1.75;
  margin: 0;
  padding: 0 22px 22px;
}

/* ── Desktop ─────────────────────────────────────────────────── */
@media (min-width: 768px) {
  .fsport-about {
    padding: 48px 24px 64px;
  }

  .fsport-about__list {
    gap: 14px;
  }

  .fsport-about__trigger {
    padding: 24px 32px;
  }

  .fsport-about__trigger-text {
    font-size: 22px;
  }

  .fsport-about__icon {
    font-size: 28px;
    width: 28px;
  }

  .fsport-about__content {
    font-size: 16px;
    padding: 0 32px 28px;
  }
}

@media (min-width: 1024px) {
  .fsport-about__trigger-text {
    font-size: 24px;
  }
}