/* ===== Giới thiệu ===== */
.phero {
  background: var(--paper-2);
  color: var(--ink);
  padding-block: clamp(56px, 8vw, 96px);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.phero::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 340px;
  height: 340px;
  border: 60px solid var(--red);
  border-radius: 50%;
  opacity: 0.12;
  border-right-color: transparent;
  border-bottom-color: transparent;
}
.phero .crumb {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.phero .crumb a {
  color: var(--muted);
}
.phero .crumb a:hover {
  color: var(--red);
}
.phero h1 {
  color: var(--ink);
  font-size: clamp(38px, 6vw, 72px);
  letter-spacing: -0.04em;
  max-width: 18ch;
}
.phero p {
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 20px);
  max-width: 60ch;
  margin-top: 20px;
}
.subnav {
  position: sticky;
  top: 74px;
  z-index: 40;
  background: rgba(251, 249, 247, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.subnav .wrap {
  display: flex;
  gap: 8px;
  height: 58px;
  align-items: center;
  overflow: auto;
}
.subnav a {
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14.5px;
  color: var(--ink-2);
  white-space: nowrap;
}
.subnav a:hover {
  background: var(--paper-2);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 4vw, 60px);
  align-items: center;
}
.intro-photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.intro-photos .ph-frame {
  aspect-ratio: 3/4;
  border-radius: var(--r-lg);
  overflow: hidden;
}
.intro-photos .ph-frame:first-child {
  margin-top: 30px;
}
.intro-photos img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* timeline */
.tl {
  position: relative;
  margin-top: 50px;
  padding-left: 0;
}
.tl-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 30px;
  padding-bottom: 42px;
  position: relative;
}
.tl-row::before {
  content: "";
  position: absolute;
  left: 131px;
  top: 14px;
  bottom: -14px;
  width: 2px;
  background: var(--line);
}
.tl-row:last-child::before {
  display: none;
}
.tl-year {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 24px;
  color: var(--red);
  text-align: right;
  position: relative;
}
.tl-year::after {
  content: "";
  position: absolute;
  right: -19px;
  top: 7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--red);
  border: 3px solid var(--paper);
}
.tl-c h3 {
  font-size: 21px;
  margin-bottom: 8px;
}
.tl-c p {
  color: var(--muted);
  font-size: 15px;
  max-width: 60ch;
}

.ach-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 46px;
}
.ach {
  padding: 30px 24px;
  border-radius: var(--r-lg);
  background: var(--card);
  border: 1px solid var(--line);
  text-align: center;
}
.ach .n {
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--red);
  font-family: var(--mono);
}
.ach .l {
  font-size: 14px;
  color: var(--muted);
  margin-top: 8px;
}

.fac-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}
.fac {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--paper-2);
  aspect-ratio: 3/3.8;
}
.fac img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: 0.5s;
}
.fac:hover img {
  transform: scale(1.05);
}
.fac .info {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 42px 16px 16px;
  color: #fff;
  background: linear-gradient(to top, rgba(22, 17, 15, 0.92), transparent);
}
.fac .info b {
  display: block;
  font-size: 16px;
}
.fac .info span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.8);
}
.fac .yrs {
  position: absolute;
  top: 12px;
  left: 12px;
}
@media (max-width: 1080px) {
  .ach-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .fac-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 760px) {
  .intro-grid {
    grid-template-columns: 1fr;
  }
  .fac-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tl-row {
    grid-template-columns: 70px 1fr;
    gap: 18px;
  }
  .tl-row::before {
    left: 81px;
  }
  .tl-year {
    font-size: 18px;
  }
  .tl-year::after {
    right: -12px;
  }
}