/* ===== Hero đầu trang — nền đen, chữ trắng ===== */
.hcd-hero {
  /* Màu nền đen theo yêu cầu; đổi tại đây để chỉnh nền toàn section */
  --hcd-hero-bg: var(--hcd-color-bg-black, #000000);
  --hcd-hero-text: var(--hcd-color-text-inverse, #ffffff);
  --hcd-hero-radius: 16px;
  --hcd-hero-line: rgba(255, 255, 255, 0.16);
  --hcd-hero-surface: rgba(255, 255, 255, 0.06);

  position: relative;
  width: 100%;
  box-sizing: border-box;
  padding-block: 80px;
  background-color: var(--hcd-hero-bg);
  color: var(--hcd-hero-text);
  overflow: hidden;
}

.hcd-hero *,
.hcd-hero *::before,
.hcd-hero *::after {
  box-sizing: border-box;
}

.hcd-hero__container {
  width: min(100% - 32px, var(--hcd-container, 1200px));
  margin-inline: auto;
  color: var(--hcd-hero-text);
}

/* ----- Header ----- */
.hcd-hero .hcd-hero__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 48px;
}

.hcd-hero .hcd-hero__eyebrow {
  margin: 0 0 16px;
  padding: 6px 16px;
  border: 1px solid var(--hcd-hero-line);
  border-radius: 999px;
  font-size: var(--hcd-fs-sm, 14px);
  font-weight: var(--hcd-fw-semibold, 600);
  line-height: var(--hcd-lh-normal, 1.5);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--hcd-hero-text);
}

.hcd-hero .hcd-hero__title {
  margin: 0 0 16px;
  max-width: 820px;
  font-size: var(--hcd-fs-h1, 40px);
  font-weight: var(--hcd-fw-bold, 700);
  line-height: var(--hcd-lh-tight, 1.2);
  color: var(--hcd-hero-text);
  text-transform: none;
}

.hcd-hero .hcd-hero__description {
  margin: 0 0 32px;
  max-width: 640px;
  font-size: var(--hcd-fs-lg, 18px);
  font-weight: var(--hcd-fw-regular, 400);
  line-height: var(--hcd-lh-loose, 1.7);
  color: var(--hcd-hero-text);
}

.hcd-hero .hcd-hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* ----- Buttons ----- */
.hcd-hero .hcd-hero__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  margin: 0;
  padding: 12px 24px;
  border: 2px solid transparent;
  border-radius: 12px;
  font-size: var(--hcd-fs-body, 16px);
  font-weight: var(--hcd-fw-semibold, 600);
  line-height: var(--hcd-lh-snug, 1.35);
  text-decoration: none;
  text-transform: none;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease, background-color 0.2s ease;
}

.hcd-hero .hcd-hero__button--primary {
  background-color: var(--hcd-color-accent, #fbb02d);
  border-color: var(--hcd-color-accent, #fbb02d);
  color: var(--hcd-hero-bg);
}

.hcd-hero .hcd-hero__button--primary:hover {
  background-color: var(--hcd-color-accent-hover, #e39a16);
  border-color: var(--hcd-color-accent-hover, #e39a16);
  color: var(--hcd-hero-bg);
  transform: translateY(-2px);
}

.hcd-hero .hcd-hero__button--ghost {
  background-color: transparent;
  border-color: var(--hcd-hero-text);
  color: var(--hcd-hero-text);
}

.hcd-hero .hcd-hero__button--ghost:hover {
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--hcd-hero-text);
  transform: translateY(-2px);
}

.hcd-hero .hcd-hero__icon {
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.hcd-hero .hcd-hero__button:hover .hcd-hero__icon {
  transform: translateX(4px);
}

/* ----- Grid + Card ----- */
.hcd-hero .hcd-hero__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  align-items: stretch;
}

.hcd-hero .hcd-hero__card {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border: 1px solid var(--hcd-hero-line);
  border-radius: var(--hcd-hero-radius);
  background-color: var(--hcd-hero-surface);
  color: var(--hcd-hero-text);
  text-align: left;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.hcd-hero .hcd-hero__card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 16px 36px rgba(255, 255, 255, 0.08);
  color: var(--hcd-hero-text);
}

.hcd-hero .hcd-hero__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--hcd-hero-surface);
}

.hcd-hero .hcd-hero__image {
  display: block;
  width: 100%;
  height: 100%;
  margin: 0;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.hcd-hero .hcd-hero__card:hover .hcd-hero__image {
  transform: scale(1.05);
}

.hcd-hero .hcd-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 60%);
  pointer-events: none;
}

.hcd-hero .hcd-hero__number {
  position: absolute;
  top: 16px;
  left: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding-inline: 8px;
  border: 1px solid var(--hcd-hero-line);
  border-radius: 12px;
  background-color: rgba(0, 0, 0, 0.7);
  font-size: var(--hcd-fs-sm, 14px);
  font-weight: var(--hcd-fw-bold, 700);
  line-height: 1;
  letter-spacing: 0.08em;
  color: var(--hcd-hero-text);
}

.hcd-hero .hcd-hero__content {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 24px;
}

.hcd-hero .hcd-hero__card-title {
  margin: 0;
  font-size: var(--hcd-fs-h3, 20px);
  font-weight: var(--hcd-fw-bold, 700);
  line-height: var(--hcd-lh-snug, 1.35);
  color: var(--hcd-hero-text);
  text-transform: none;
}

.hcd-hero .hcd-hero__card-description {
  margin: 0 0 8px;
  font-size: var(--hcd-fs-md, 15px);
  font-weight: var(--hcd-fw-regular, 400);
  line-height: var(--hcd-lh-normal, 1.5);
  color: var(--hcd-hero-text);
}

.hcd-hero .hcd-hero__more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  font-size: var(--hcd-fs-md, 15px);
  font-weight: var(--hcd-fw-semibold, 600);
  line-height: var(--hcd-lh-normal, 1.5);
  color: var(--hcd-hero-text);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--hcd-color-accent, #fbb02d);
}

.hcd-hero .hcd-hero__card:hover .hcd-hero__icon {
  transform: translateX(4px);
}

/* ----- Focus ----- */
.hcd-hero .hcd-hero__button:focus-visible,
.hcd-hero .hcd-hero__card:focus-visible {
  outline: 3px solid var(--hcd-color-accent, #fbb02d);
  outline-offset: 3px;
}

/* ----- Tablet & nhỏ hơn ----- */
@media (max-width: 849px) {
  .hcd-hero {
    padding-block: 48px;
  }

  .hcd-hero .hcd-hero__header {
    margin-bottom: 32px;
  }

  .hcd-hero .hcd-hero__title {
    font-size: var(--hcd-fs-h2, 28px);
  }

  .hcd-hero .hcd-hero__description {
    font-size: var(--hcd-fs-body, 16px);
    margin-bottom: 24px;
  }

  .hcd-hero .hcd-hero__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .hcd-hero .hcd-hero__media {
    aspect-ratio: 16 / 9;
  }
}

/* ----- Mobile ----- */
@media (max-width: 549px) {
  .hcd-hero .hcd-hero__title {
    font-size: var(--hcd-fs-xl, 22px);
  }

  .hcd-hero .hcd-hero__eyebrow {
    font-size: var(--hcd-fs-xs, 13px);
  }

  .hcd-hero .hcd-hero__actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .hcd-hero .hcd-hero__button {
    width: 100%;
  }

  .hcd-hero .hcd-hero__content {
    padding: 16px;
  }

  .hcd-hero .hcd-hero__card-title {
    font-size: var(--hcd-fs-lg, 18px);
  }
}

/* ----- Giảm chuyển động ----- */
@media (prefers-reduced-motion: reduce) {
  .hcd-hero .hcd-hero__button,
  .hcd-hero .hcd-hero__card,
  .hcd-hero .hcd-hero__image,
  .hcd-hero .hcd-hero__icon {
    transition: none;
  }

  .hcd-hero .hcd-hero__button:hover,
  .hcd-hero .hcd-hero__card:hover,
  .hcd-hero .hcd-hero__card:hover .hcd-hero__image,
  .hcd-hero .hcd-hero__button:hover .hcd-hero__icon,
  .hcd-hero .hcd-hero__card:hover .hcd-hero__icon {
    transform: none;
  }
}