/* ==========================================================================
   TobaVerse — Culture Page Stylesheet
   Same tokens as style.css / explore.css: navy, lake, emerald, clay, ulos,
   paper, Poppins + Space Mono, radius-lg/md/sm, shadow-soft/lift.
   ========================================================================== */

/* ---- Culture hero -------------------------------------------------------- */
.culture-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  color: var(--paper);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(7,20,27,0.42) 0%, rgba(7,20,27,0.6) 55%, rgba(7,20,27,0.94) 100%),
    linear-gradient(120deg, rgba(29,111,140,0.32), rgba(11,46,61,0.24)),
    url("../assets/images/hero/culture-hero.jpg");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}
.culture-hero .contour-field { opacity: 0.28; mix-blend-mode: soft-light; }
.culture-hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 200px clamp(20px, 5vw, 48px) 76px;
}
.culture-hero .eyebrow { color: var(--clay-light); }
.culture-hero h1 {
  color: var(--paper);
  font-size: clamp(2.4rem, 5.6vw, 4.1rem);
  font-weight: 800;
  margin: 16px 0 16px;
  max-width: 760px;
}
.culture-hero p.lede { max-width: 580px; color: rgba(251,249,244,0.8); font-size: 1.02rem; }
.culture-hero .hero-actions { margin-top: 34px; display: flex; gap: 16px; flex-wrap: wrap; }

/* ---- Section shell shared by this page ----------------------------------- */
.c-section { padding: 108px 0; }
.c-section.tint { background: var(--paper-dim); }

/* ---- 1. Cultural categories (full-bleed image cards) ----------------------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 260px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow-soft);
  transition: transform .4s cubic-bezier(.2,.8,.2,1), box-shadow .4s ease;
}
.category-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lift); }

.category-card .cat-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform .6s ease;
}
.category-card:hover .cat-bg { transform: scale(1.08); }
.category-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7,20,27,0.05) 38%, rgba(7,20,27,0.9) 100%);
  z-index: 1;
}

.category-card .cat-body {
  position: relative;
  z-index: 2;
  padding: 22px 24px 26px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.category-card h3 { color: var(--paper); font-size: 1.12rem; }
.category-card p { color: rgba(251,249,244,0.82); font-size: 0.9rem; }
.category-card .goto-btn {
  margin-top: 12px;
  align-self: flex-start;
  padding: 9px 18px;
  border-radius: 999px;
  background: rgba(251,249,244,0.14);
  border: 1px solid rgba(251,249,244,0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--paper);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: background .25s ease, color .25s ease;
}
.category-card .goto-btn svg { width: 12px; height: 12px; transition: transform .25s ease; }
.category-card:hover .goto-btn { background: var(--clay); color: var(--navy); border-color: var(--clay); }
.category-card:hover .goto-btn svg { transform: translateX(4px); }

/* ---- 2. Timeline ----------------------------------------------------------- */
.timeline-wrap { position: relative; }
.timeline-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  position: relative;
  margin-bottom: 46px;
}
.timeline-track::before {
  content: "";
  position: absolute;
  top: 21px; left: 0; right: 0;
  height: 2px;
  background: rgba(11,46,61,0.12);
  z-index: 0;
}
.timeline-track .fill-line {
  position: absolute;
  top: 21px; left: 0;
  height: 2px;
  background: var(--clay);
  z-index: 0;
  transition: width .5s cubic-bezier(.2,.8,.2,1);
}
.era-btn {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: transparent;
  padding: 0;
}
.era-btn .dot {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid rgba(11,46,61,0.16);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--navy);
  transition: all .3s ease;
}
.era-btn span.label {
  font-size: 0.88rem;
  font-weight: 600;
  color: #4B6067;
  text-align: center;
}
.era-btn.is-active .dot { background: var(--navy); border-color: var(--navy); color: var(--paper); transform: scale(1.12); }
.era-btn.is-active span.label { color: var(--navy); }
.era-btn:hover .dot { border-color: var(--emerald); }

.era-panel {
  border-radius: var(--radius-lg);
  background: var(--navy);
  color: var(--paper);
  padding: clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: 0.9fr 1.4fr;
  gap: 36px;
  position: relative;
  overflow: hidden;
  min-height: 260px;
}
.era-panel .era-period {
  font-family: var(--font-mono);
  color: var(--clay-light);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.era-panel h3 { color: var(--paper); font-size: clamp(1.5rem, 2.6vw, 2rem); margin-top: 10px; }
.era-panel .era-desc { color: rgba(251,249,244,0.78); margin-top: 16px; }
.era-panel .era-points { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.era-panel .era-points li {
  padding-left: 20px;
  position: relative;
  font-size: 0.92rem;
  color: rgba(251,249,244,0.82);
}
.era-panel .era-points li::before {
  content: "";
  position: absolute; left: 0; top: 8px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--clay);
}

/* ---- 3. Clan grid + modal --------------------------------------------------- */
.clan-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}
.clan-card {
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid rgba(11,46,61,0.08);
  box-shadow: var(--shadow-soft);
  padding: 26px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: transform .3s ease, box-shadow .3s ease;
}
.clan-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lift); }
.clan-card .glyph {
  width: 56px; height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--paper);
  font-size: 1.1rem;
}
.clan-card h4 { font-size: 1rem; }
.clan-card span.tag { font-family: var(--font-mono); font-size: 0.7rem; color: var(--emerald); text-transform: uppercase; letter-spacing: 0.05em; }

/* ---- 4. Traditional houses — photo gallery --------------------------------- */
.house-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}
.house-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-soft);
  transition: transform .4s cubic-bezier(.2,.8,.2,1), box-shadow .4s ease;
}
.house-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lift); }
.house-thumb {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--paper-dim);
}
.house-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .6s ease;
}
.house-card:hover .house-thumb img { transform: scale(1.08); }
.house-body { padding: 24px 26px 28px; }
.house-body h3 { color: var(--navy); font-size: 1.24rem; }
.house-body p { color: #4B6067; font-size: 0.94rem; margin-top: 10px; }

/* ---- 5. Ulos gallery --------------------------------------------------------- */
.ulos-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.ulos-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/5;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  transition: box-shadow .3s ease;
}
.ulos-item:hover, .ulos-item:focus-within { box-shadow: var(--shadow-lift); }
.ulos-item img.photo {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s cubic-bezier(.2,.8,.2,1);
}
.ulos-item:hover img.photo, .ulos-item:focus-within img.photo { transform: scale(1.14) rotate(1deg); }
.ulos-item .caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 18px 18px 16px;
  background: linear-gradient(0deg, rgba(7,20,27,0.92), transparent);
  color: var(--paper);
  transform: translateY(12px);
  opacity: 0.94;
  transition: transform .3s ease;
}
.ulos-item .caption h4 { color: var(--paper); font-size: 1rem; }
.ulos-item .caption p {
  font-size: 0.82rem;
  color: rgba(251,249,244,0.8);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height .35s ease, opacity .35s ease, margin-top .35s ease;
}
.ulos-item:hover .caption p, .ulos-item:focus-within .caption p {
  max-height: 90px; opacity: 1; margin-top: 6px;
}
.ulos-item:hover .caption, .ulos-item:focus-within .caption { transform: translateY(0); }

/* ---- 6. Dalihan Na Tolu diagram ---------------------------------------------- */
.philosophy-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.dnt-diagram { position: relative; aspect-ratio: 1/1; max-width: 460px; margin: 0 auto; }
.dnt-diagram svg { width: 100%; height: 100%; }
.dnt-node {
  cursor: pointer;
  transition: transform .3s ease;
  transform-origin: center;
}
.dnt-node:hover, .dnt-node.is-active { transform: scale(1.08); }
.dnt-node circle.base { transition: fill .3s ease; }
.dnt-node.is-active circle.base { fill: var(--clay); }
.dnt-node text { font-family: var(--font-body); font-weight: 700; fill: var(--paper); font-size: 6.4px; text-anchor: middle; pointer-events: none; }
.dnt-ring { fill: none; stroke: rgba(11,46,61,0.14); stroke-dasharray: 4 5; animation: dnt-spin 40s linear infinite; transform-origin: 50% 50%; }
@keyframes dnt-spin { to { transform: rotate(360deg); } }

.philosophy-detail { display: flex; flex-direction: column; gap: 14px; }
.philosophy-detail .role-card {
  display: none;
  padding: 22px 24px;
  border-radius: var(--radius-md);
  background: var(--paper-dim);
  border-left: 4px solid var(--clay);
}
.philosophy-detail .role-card.show { display: block; }
.philosophy-detail .role-card .role-tag { font-family: var(--font-mono); font-size: 0.72rem; color: var(--emerald); letter-spacing: 0.05em; text-transform: uppercase; }
.philosophy-detail .role-card h3 { margin-top: 6px; }
.philosophy-detail .role-card p { color: #46606A; margin-top: 8px; font-size: 0.94rem; }

/* ---- Reused modal (clan story) ----------------------------------------------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(7,20,27,0.72);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center; justify-content: center;
  z-index: 900;
  padding: 24px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--paper);
  border-radius: var(--radius-lg);
  max-width: 720px;
  width: 100%;
  max-height: 86vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-lift);
  animation: modalIn .35s cubic-bezier(.2,.8,.2,1);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(24px) scale(.98); } to { opacity: 1; transform: none; } }
.modal-header { position: relative; padding: 40px 34px 26px; color: var(--paper); overflow: hidden; }
.modal-header h2 { color: var(--paper); font-size: clamp(1.4rem, 3vw, 1.9rem); position: relative; z-index: 1; }
.modal-header .badge { display: inline-block; padding: 5px 13px; border-radius: 999px; background: var(--clay); color: var(--navy); font-size: 0.7rem; font-weight: 700; margin-bottom: 10px; position: relative; z-index: 1; }
.modal-close {
  position: absolute; top: 18px; right: 18px;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(251,249,244,0.18); color: var(--paper);
  display: grid; place-items: center; z-index: 3;
  transition: background .2s ease, transform .2s ease;
}
.modal-close:hover { background: var(--ulos); transform: rotate(90deg); }
.modal-body-inner { padding: 6px 34px 34px; }
.modal-body-inner p { color: #3E5359; font-size: 0.95rem; margin-bottom: 14px; }
.modal-body-inner .modal-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.modal-body-inner .modal-tags span { padding: 6px 13px; border-radius: 999px; background: var(--paper-dim); font-size: 0.8rem; color: var(--navy); font-weight: 500; }

/* ---- Responsive ---------------------------------------------------------------- */
@media (max-width: 1080px) {
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .clan-grid { grid-template-columns: repeat(3, 1fr); }
  .ulos-gallery { grid-template-columns: repeat(2, 1fr); }
  .timeline-track { grid-template-columns: repeat(4, 1fr); }
  .era-panel { grid-template-columns: 1fr; }
  .philosophy-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .category-grid { grid-template-columns: 1fr; }
  .clan-grid { grid-template-columns: repeat(2, 1fr); }
  .house-grid { grid-template-columns: 1fr; }
  .ulos-gallery { grid-template-columns: 1fr 1fr; }
  .timeline-track { grid-template-columns: repeat(2, 1fr); row-gap: 30px; }
  .timeline-track::before, .timeline-track .fill-line { display: none; }
}