/* Dự án — Figma 200-22061 (1440) · 200-22660 (834) · 200-23243 (390) */

.page--du-an { --da-hero-h: 1000px; --da-overlap: 240px; }
@media (max-width: 1179px) { .page--du-an { --da-hero-h: 1194px; } }
@media (max-width: 639px)  { .page--du-an { --da-hero-h: 844px; --da-overlap: 0px; } }

/* ---------- hero ---------- */
.da-hero { height: var(--da-hero-h); overflow: hidden; background: #0b3049; color: #fff; }
.da-hero.hero-sticky { top: min(0px, calc(100vh - var(--da-hero-h))); }
.da-hero__media, .da-hero__media img { position: absolute; inset: 0; width: 100%; height: 100%; }
.da-hero__media img { object-fit: cover; object-position: center; }
.da-hero__inner { position: relative; padding-top: 317px; }
.da-hero__crumb { gap: 12px; color: #fff; }
.da-hero__crumb span[aria-hidden] { opacity: 1; }
.da-hero__eyebrow { margin-top: 45px; color: #75c9ff; }
.da-hero__title { margin-top: 21px; max-width: 980px; font: 500 64px/76.8px var(--font-head); letter-spacing: -.03em; color: #fff; }
.da-hero__title span { display: block; }
.da-hero__lead { max-width: 490px; /* Figma 510 — cùng chỗ xuống dòng với Inter web */ margin-top: 24px; font: 400 18px/28.8px var(--font); color: #fff; }
.da-hero__btn { min-height: 58px; margin-top: 30px; padding: 13px 20px; box-shadow: 0 4px 12px rgba(11, 48, 73, .05); }

/* ---------- danh mục dự án (trượt lên hero) ---------- */
.da-directory {
  margin-top: calc(var(--da-overlap) * -1);
  padding: calc(96px + var(--da-overlap)) 0 96px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0) 40%, rgba(255, 255, 255, .85) 80%, #fff 100%) top / 100% var(--da-overlap) no-repeat,
    linear-gradient(180deg, #fff 0%, #f7fbfe 30%, #e8f3fb 100%) 0 var(--da-overlap) / 100% calc(100% - var(--da-overlap)) no-repeat;
}
.da-directory__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; }
.da-h2 { margin-top: 21px; font: 500 48px/57.6px var(--font-head); letter-spacing: -.03em; color: var(--navy); }

/* tabs */
.da-tabs { display: flex; gap: 6px; flex: none; padding: 6px; border-radius: 7px; background: #eaf2f7; }
.da-tab { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 71px; padding: 13px 23px; border-radius: 4px; text-align: center; color: var(--slate); transition: background-color .25s, color .25s, box-shadow .25s; }
.da-tab__label { font: 500 16px/20.8px var(--font); white-space: nowrap; }
.da-tab small { margin-top: 5px; font: 400 12px/19.2px var(--font); opacity: .85; white-space: nowrap; }
.da-tab:hover { color: var(--blue); }
.da-tab.is-active { background: #fff; color: var(--blue); box-shadow: 0 2px 8px rgba(18, 50, 74, .03); }
.da-tab.is-active .da-tab__label { font-weight: 600; }

/* panels */
.da-panel { margin-top: 44px; }
.da-panel:focus { outline: none; }
.da-panel:focus-visible { outline: 2px solid var(--blue); outline-offset: 6px; border-radius: 4px; }
.da-panel.is-entering .da-card { animation: da-card-in .5s var(--ease) both; }
.da-panel.is-entering .da-card:nth-child(2) { animation-delay: .06s; }
.da-panel.is-entering .da-card:nth-child(3) { animation-delay: .12s; }
.da-panel.is-entering .da-card:nth-child(n+4) { animation-delay: .18s; }
@keyframes da-card-in { from { opacity: 0; transform: translateY(16px); } }
@media (prefers-reduced-motion: reduce) { .da-panel.is-entering .da-card { animation: none; } }

.da-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }

/* card */
.da-card { display: flex; flex-direction: column; overflow: hidden; border-radius: var(--radius-lg); background: #fff; transition: box-shadow .3s var(--ease), transform .3s var(--ease); }
.da-card:hover { box-shadow: 0 14px 34px rgba(18, 50, 74, .07); transform: translateY(-2px); }
.da-card__media { aspect-ratio: 411 / 231; overflow: hidden; background: #dfe9f1; }
.da-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.da-card:hover .da-card__media img { transform: scale(1.03); }
.da-card--logo .da-card__media { display: grid; place-items: center; padding: 28px 40px; background: linear-gradient(180deg, #f6fafd, #eaf3f9); }
.da-card--logo .da-card__media img { width: auto; max-width: 70%; height: auto; max-height: 100%; object-fit: contain; }
.da-card:hover.da-card--logo .da-card__media img { transform: none; }
.da-card__credit { padding: 6px 24px 14px; font: 400 16px/26.4px var(--font); color: #678093; }
.da-card__body { display: flex; flex: 1; flex-direction: column; align-items: flex-start; padding: 0 24px 24px; }
.da-card__info { align-self: stretch; padding-bottom: 16px; border-bottom: 1px solid #dde7ee; }
.da-card__region { font: 600 16px/26.4px var(--font); letter-spacing: .08em; text-transform: uppercase; color: var(--blue); }
.da-card__title { margin-top: 10px; font: 500 24px/33.6px var(--font-head); letter-spacing: -.025em; color: #0c304a; }
.da-card__area { display: flex; align-items: flex-end; margin-top: 12px; height: 44px; }
.da-card__area strong { font: 600 40px/44px var(--font); letter-spacing: -1px; color: #2872a7; position: relative; top: -7px; }
.da-card__area span { margin-bottom: -1px; font: 400 16px/26.4px var(--font); color: #37556b; }
.da-card__area-label { padding-top: 6px; font: 400 16px/26.4px var(--font); color: #678093; }
.da-card__facts { display: grid; gap: 13px; align-self: stretch; padding: 16px 0; }
.da-card__facts > div { display: grid; grid-template-columns: 78px minmax(0, 1fr); column-gap: 10px; }
.da-card__facts dt { font: 400 16px/26.4px var(--font); color: #678093; }
.da-card__facts dd { font: 500 16px/26.4px var(--font); color: #123d56; }
.da-card__summary { padding-bottom: 16px; font: 400 16px/26.4px var(--font); color: #486c85; }
.da-card__link { gap: 16px; min-height: 48px; margin-top: auto; padding: 9px 4px 9px 0; }

.da-card--simple .da-card__region { padding-bottom: 10px; }
.da-card--simple .da-card__title { margin-top: 0; padding-bottom: 12px; }
.da-card__desc { padding-bottom: 16px; font: 400 16px/26.4px var(--font); color: var(--slate); }

/* contact section — Figma trang này: padding-top 72 / 72 / 55 */
.page--du-an .contact-cta { padding-top: 72px; }

/* ---------- tablet 834 ---------- */
@media (max-width: 1179px) {
  .da-hero__inner { padding-top: 433px; }
  .da-hero__title { font-size: 48px; line-height: 57.6px; }

  .da-directory__head { flex-direction: column; align-items: flex-start; gap: 28px; }
  .da-h2 { font-size: 36px; line-height: 43.2px; }
  .da-tab { padding-inline: 22px; }
  .da-panel { margin-top: 32px; }
  .da-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .da-card__credit { padding-inline: 22px; }
  .da-card__body { padding-inline: 22px; }
  .da-card__area { height: 40px; }
  .da-card__area strong { font-size: 36px; line-height: 39.6px; }
  .da-card__facts { grid-template-columns: 1fr 1fr; gap: 16px; padding: 18px 0; }
  .da-card__facts > div { display: flex; flex-direction: column; gap: 5px; }
}

/* ---------- mobile 390 ---------- */
@media (max-width: 639px) {
  .da-hero__inner { padding-top: 240px; }
  .da-hero__eyebrow { font-size: 12px; line-height: 16.8px; }
  .da-hero__title { margin-top: 17px; font-size: 36px; line-height: 43.2px; }
  .da-hero__lead { font-size: 16px; line-height: 25.6px; }

  .da-directory { padding: 64px 0; }
  .da-directory__head { align-items: stretch; gap: 26px; }
  .da-h2 { margin-top: 17px; }
  .da-tabs { width: 100%; }
  .da-tab { flex: 1 1 0; min-width: 0; padding: 12px 10px; }
  .da-panel { margin-top: 30px; }
  .da-grid { grid-template-columns: 1fr; gap: 28px; }
  .da-card__area { height: 44px; }
  .da-card__area strong { font-size: 40px; line-height: 44px; }
  .da-card__facts { grid-template-columns: 1fr; gap: 13px; padding: 16px 0; }
  .da-card__facts > div { display: grid; grid-template-columns: 78px minmax(0, 1fr); column-gap: 8px; }
  .page--du-an .contact-cta { padding-top: 55px; }
}