/* ==========================================================================
   Alfamedia — layout.css
   Container, section, grid, dan pola susunan halaman (prefiks l-*).
   ========================================================================== */

.l-container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.l-container--narrow {
  max-width: var(--container-narrow);
}

.l-section {
  position: relative;
  padding-block: var(--section-space);
}

.l-section--tight {
  padding-block: var(--section-space-tight);
}

.l-section--warm {
  background-color: var(--surface-warm);
}

.l-section--cool {
  background-color: var(--surface-cool);
}

.l-section--deep {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background-color: var(--surface-deep);
  color: var(--text-on-deep);
}

/* Bidang cahaya navy yang melayang pelan — kedalaman tanpa warna baru.
   Animasinya ada di animations.css. */
.l-section--deep::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: -46%;
  left: -12%;
  width: min(72%, 46rem);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, var(--deep-glow) 0%, transparent 66%);
  filter: blur(30px);
  pointer-events: none;
  will-change: transform;
}

/* ------------------------------------------------------------------
   Tekstur kisi presisi.
   Dipakai bergantian antar-section supaya halaman punya irama:
   hero dan bidang navy bertekstur, section putih dibiarkan bersih.
   ------------------------------------------------------------------ */
.l-section--textured {
  isolation: isolate;
}

.l-section--textured::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--texture-line, var(--grid-line-soft)) 1px, transparent 1px),
    linear-gradient(to bottom, var(--texture-line, var(--grid-line-soft)) 1px, transparent 1px);
  background-size: 76px 76px;
  -webkit-mask-image: radial-gradient(
    100% 100% at 84% 0%,
    #000 0%,
    rgba(0, 0, 0, 0.35) 48%,
    transparent 82%
  );
  mask-image: radial-gradient(
    100% 100% at 84% 0%,
    #000 0%,
    rgba(0, 0, 0, 0.35) 48%,
    transparent 82%
  );
}

.l-section--deep.l-section--textured {
  --texture-line: rgba(255, 255, 255, 0.05);
}

.l-section--bordered {
  border-top: 1px solid var(--line-hairline);
}

/* Kepala section: judul kiri, keterangan pendamping kanan. */
.l-section__head {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--grid-gap);
  align-items: end;
  margin-bottom: clamp(2.25rem, 1.5rem + 2.4vw, 3.75rem);
}

.l-section__head--stacked {
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

/* Judul lebih sempit, kolom teks lebih lebar. */
.l-section__head--flip {
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  align-items: start;
}

.l-section__aside {
  padding-bottom: var(--space-2);
}

.l-section__aside > * + * {
  margin-top: var(--space-4);
}

/* Grid 12 kolom untuk komposisi bebas. */
.l-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--grid-gap);
}

.l-grid--gapless-row {
  row-gap: 0;
}

.l-span-4 { grid-column: span 4; }
.l-span-5 { grid-column: span 5; }
.l-span-6 { grid-column: span 6; }
.l-span-7 { grid-column: span 7; }
.l-span-8 { grid-column: span 8; }
.l-span-12 { grid-column: span 12; }

/* Dua kolom asimetris: teks utama + pendamping. */
.l-split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--grid-gap) clamp(2rem, 1rem + 4vw, 5rem);
  align-items: start;
}

.l-split--even {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* Pola sticky di dalam grid: pembungkusnya yang meregang setinggi baris,
   isinya yang menempel. Kalau pembungkusnya sendiri dibuat sticky, tingginya
   hanya setinggi isi sehingga tidak punya jarak tempuh untuk menempel. */
.l-split__sticky {
  align-self: stretch;
}

.l-split__sticky > * {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
}

/* Baris profil editorial: foto + narasi, arah berselang-seling. */
/* Kolom foto 360px — dimungkinkan oleh foto sumber resolusi tinggi, dan
   memberi potret bobot visual yang lebih setara dengan narasinya. */
.l-profile-row {
  display: grid;
  grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
  gap: clamp(1.75rem, 1rem + 3.4vw, 4rem);
  align-items: start;
}

.l-profile-row--reverse {
  grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
}

.l-profile-row--reverse > .l-profile-row__media {
  order: 2;
}

/* Deret fakta bergaris tipis. */
.l-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line-hairline);
}

.l-facts > * {
  padding: var(--space-5) var(--space-5) 0 0;
  border-right: 1px solid var(--line-hairline);
}

.l-facts > *:last-child {
  border-right: 0;
}

.l-facts > * + * {
  padding-left: var(--space-5);
}

/* Kerangka halaman */
.l-page {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

.l-page__main {
  flex: 1 0 auto;
}