/* ==========================================================================
   Tàu Hũ Tươi Phúc An — sections.css
   Style riêng cho từng section: Hero, Sản phẩm, Câu chuyện, Vì sao chọn, CTA.
   Mobile-first: mặc định là layout mobile, nâng cấp ở responsive.css.
   ========================================================================== */

/* ---------- Hero ---------- */
.hero {
  padding-top: calc(var(--space-xl) + var(--space-sm));
  padding-bottom: var(--space-2xl);
  background: linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 60%);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}

.hero__content {
  text-align: center;
}

.hero__title {
  font-size: clamp(2rem, 5.4vw, 3.3rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.hero__lead {
  font-size: 1.05rem;
  max-width: 42ch;
  margin: 0 auto var(--space-lg);
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: 0;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 10px;
  margin: var(--space-md) 0 0;
  padding: 0;
  list-style: none;
}

.hero__trust li {
  position: relative;
  padding-left: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--color-text-muted);
}

.hero__trust li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--color-primary);
}

.hero__media {
  position: relative;
  max-width: 460px;
  margin-inline: auto;
}

.hero__media-frame {
  display: block;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 6px;
  background: var(--metallic-gold);
  background-size: 220% 220%;
  box-shadow: var(--shadow-lg);
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius-lg) - 6px);
  display: block;
  background: #fff;
}

.hero__media-tag {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 7px 16px;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-heading);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: var(--shadow-md);
}

/* ---------- Product grid — 4 thẻ hương vị cao cấp ---------- */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  max-width: 560px;
  margin-inline: auto;
}

/* ---------- Story ---------- */
.story {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

.story__media {
  position: relative;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.story__media img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 5;
  transition: transform 1.1s var(--ease-premium);
}

.story__media:hover img {
  transform: scale(1.045);
}

@media (prefers-reduced-motion: reduce) {
  .story__media:hover img {
    transform: none;
  }
}

.story__content .section__eyebrow {
  margin-bottom: var(--space-xs);
}

.story__content p {
  font-size: 0.98rem;
}

.story__closing {
  font-family: var(--font-heading);
  font-style: italic;
  color: var(--color-jade-strong);
  font-size: 1.08rem;
}

[data-theme='dark'] .story__closing {
  color: var(--color-jade);
}

.story__founder {
  margin-top: var(--space-md);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.story__founder-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-soft);
  font-size: 1.2rem;
  overflow: hidden;
  flex-shrink: 0;
}

.story__founder-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.story__founder strong {
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: 1rem;
}

/* ---------- Why choose us ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

/* ---------- CTA cuối trang ---------- */
.cta-band {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, #1c2f22 100%);
  color: #f3ecdd;
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  margin-inline: var(--container-padding);
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(217, 172, 95, 0.18), transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(217, 172, 95, 0.12), transparent 50%);
  pointer-events: none;
}

.cta-band__title {
  color: #f3ecdd;
  font-size: clamp(1.7rem, 4.5vw, 2.4rem);
  position: relative;
}

.cta-band__text {
  color: rgba(243, 236, 221, 0.78);
  max-width: 48ch;
  margin: 0 auto var(--space-lg);
  position: relative;
}

@media (min-width: 1024px) {
  .cta-band {
    margin-inline: auto;
    max-width: calc(var(--container-width) - 2 * var(--container-padding));
  }
}

/* ---------- Câu hỏi thường gặp (FAQ) ---------- */
.faq {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq__item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 4px var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq__item[open] {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.faq__q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-heading);
}

.faq__q::-webkit-details-marker { display: none; }

.faq__q::after {
  content: '+';
  flex-shrink: 0;
  font-family: var(--font-body);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-primary);
  transition: transform var(--transition-fast);
}

.faq__item[open] .faq__q::after {
  transform: rotate(45deg);
}

.faq__a {
  padding: 0 0 var(--space-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.faq__a p { margin: 0; }
.faq__a a { color: var(--color-primary); text-decoration: underline; }

.faq__q:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* ---------- CTA giữa trang (sau Menu) ---------- */
.section--tight { padding-block: var(--space-lg); }
.mid-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  text-align: center;
}
.mid-cta__text {
  font-family: var(--font-heading);
  font-size: clamp(1.15rem, 2.6vw, 1.5rem);
  color: var(--color-heading);
  margin: 0;
}

/* ---------- Niềm tin (thay khối review trống) ---------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}
.trust-point { padding: var(--space-md); display: flex; flex-direction: column; gap: 8px; }
.trust-point__k {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-primary);
  line-height: 1;
}
.trust-point h3 { margin: 2px 0 0; font-size: 1.05rem; }
.trust-point p { margin: 0; color: var(--color-text-muted); font-size: .95rem; line-height: 1.6; }
.trust-fanpage {
  margin-top: var(--space-md);
  text-align: center;
  color: var(--color-text-muted);
}
.trust-fanpage a { color: var(--color-primary); font-weight: 600; }
.proof-heading {
  margin: var(--space-xl) 0 var(--space-md);
  text-align: center;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-heading);
}
.proof-shots {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  max-width: 860px;
  margin-inline: auto;
}
.proof-shots figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-soft);
  box-shadow: var(--shadow-sm);
}
.proof-shots img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}
@media (max-width: 720px) {
  .proof-shots { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Đơn số lượng lớn ---------- */
.bulk-tags {
  list-style: none;
  padding: 0;
  margin: var(--space-lg) 0 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.bulk-tags li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 8px 16px;
  font-weight: 500;
  font-size: .95rem;
}
.bulk-cta {
  margin-top: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

@media (max-width: 768px) {
  .trust-grid { grid-template-columns: 1fr; }
}

/* ---------- Combo (trong khu Menu) ---------- */
.combo-block { margin-top: var(--space-xl); }
.combo-block__lead {
  text-align: center;
  max-width: 52ch;
  margin: 0 auto var(--space-lg);
  color: var(--color-text-muted);
}
.combo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  align-items: stretch;
}
.combo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  padding: var(--space-md);
  position: relative;
}
.combo-card--featured {
  border: 2px solid var(--color-cta);
  box-shadow: var(--shadow-md);
}
.combo-card__kicker {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin: 0 0 2px;
}
.combo-card__tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-cta);
  color: #fff;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .04em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.combo-card__name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin: 6px 0 0;
  color: var(--color-heading);
}
.combo-card__meta { color: var(--color-text-muted); font-size: .9rem; margin: 0; }
.combo-card__price {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-primary);
  margin: 4px 0 12px;
}
.combo-card__cta { margin-top: auto; width: 100%; }

.story__cta { align-self: flex-start; margin-top: var(--space-md); }


@media (max-width: 768px) {
  .combo-grid { grid-template-columns: 1fr; }
  .combo-block { margin-top: var(--space-lg); }
}

/* ---------- Craving (ngay sau Hero) ---------- */
.craving {
  padding-block: var(--space-xl);
  background: var(--color-bg-soft);
}
.craving__inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
}
.craving__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 6px;
  background: var(--metallic-gold);
  box-shadow: var(--shadow-md);
}
.craving__media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: calc(var(--radius-lg) - 6px);
}
.craving__body h2 {
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  margin: 6px 0 12px;
}
.craving__body p {
  color: var(--color-text-muted);
  max-width: 44ch;
  margin: 0 0 var(--space-lg);
}
@media (max-width: 768px) {
  .craving__inner { grid-template-columns: 1fr; gap: var(--space-lg); }
}

/* ---------- Combo 10 hũ 1 vị: nút chọn vị nhanh ---------- */
.combo-flavors {
  margin-top: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: 100%;
}
.combo-flavor {
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 9px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-cta);
  background: var(--color-surface);
  color: var(--color-cta);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.combo-flavor:hover,
.combo-flavor:focus-visible {
  background: var(--color-cta);
  color: #fff;
  outline: none;
}

/* ---------- Khoá học — chào mời phụ dưới trang ---------- */
.course-teaser {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
}
.course-teaser__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.course-teaser__media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.course-teaser__body h2 {
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  margin: 6px 0 12px;
}
.course-teaser__body p {
  color: var(--color-text-muted);
  max-width: 48ch;
  margin: 0 0 var(--space-lg);
}
.course-teaser__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
@media (max-width: 768px) {
  .course-teaser { grid-template-columns: 1fr; }
}