/* ============================================================
   V4 WORK — Portfolio archive
   Extends the locked V4 system (v4-home.css provides shell:
   header, footer, grain, tokens, grid). No new visual language.
   ============================================================ */

/* header active state */
.v4-nav a.is-active { color: var(--v4-lime); opacity: 1; }
.v4-nav a.is-active::after { transform: scaleX(1); }

/* ============================================================
   ARCHIVE HERO
   ============================================================ */

.v4-arc-hero {
  position: relative;
  padding-top: var(--v4-header-h);
  border-bottom: 1px solid var(--v4-line);
  overflow: clip;
  background:
    radial-gradient(52% 60% at 30% 30%, rgba(244, 241, 234, 0.045), transparent 72%),
    var(--v4-bg);
}

.v4-arc-hero-in {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 268px 86px;
  gap: 20px;
  align-items: end;
  padding: 30px 32px 26px;
}

.v4-arc-kicker {
  margin: 0 0 12px;
  font: 700 10px/1 var(--v4-latin);
  letter-spacing: 0.3em;
  color: var(--v4-mut);
}

.v4-arc-title {
  font-family: var(--v4-display);
  font-weight: 400;
  font-size: clamp(52px, 7.9vw, 114px);
  line-height: 0.94;
  letter-spacing: 0.004em;
  margin: 0;
  white-space: nowrap;
  text-transform: uppercase;
  color: var(--v4-ink);
}
.v4-arc-title span {
  color: transparent;
  -webkit-text-stroke: 2px var(--v4-ink);
}

.v4-arc-hero-text {
  text-align: right;
  padding-bottom: 6px;
}
.v4-arc-hero-text h2 {
  font-family: var(--v4-ar-display);
  font-weight: 900;
  font-size: clamp(30px, 2.9vw, 44px);
  line-height: 1.28;
  margin: 0 0 10px;
}
.v4-arc-hero-text h2 em { font-style: normal; color: var(--v4-lime); }
.v4-arc-hero-text p {
  margin: 0;
  color: var(--v4-mut);
  font-size: 12.5px;
  line-height: 1.95;
}

.v4-arc-hero-rail {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font: 700 8px/1 var(--v4-latin);
  letter-spacing: 0.24em;
  color: var(--v4-faint);
  padding-bottom: 4px;
}
.v4-arc-hero-rail i {
  width: 24px;
  height: 1px;
  background: var(--v4-lime);
  margin-bottom: 4px;
}
.v4-arc-hero-rail b {
  margin-top: 14px;
  font: 700 8px/1.7 var(--v4-latin);
  letter-spacing: 0.22em;
  color: var(--v4-mut);
}

/* ============================================================
   ARCHIVE BODY / FILTERS
   ============================================================ */

.v4-arc-main { padding: 30px 0 56px; }

.v4-arc-layout {
  display: grid;
  grid-template-columns: 222px minmax(0, 1fr);
  gap: 30px;
  padding: 0 32px;
  align-items: start;
}

.v4-arc-filters {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-right: 1px solid var(--v4-line);
  padding-right: 22px;
}

.v4-arc-filter-head {
  margin: 0 0 10px;
  font: 700 9px/1 var(--v4-latin);
  letter-spacing: 0.3em;
  color: var(--v4-mut);
}

.v4-arc-filter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  background: none;
  border: 0;
  border-top: 1px solid transparent;
  border-bottom: 1px solid transparent;
  color: var(--v4-mut);
  padding: 9px 2px;
  cursor: pointer;
  text-align: left;
  font: 700 9.5px/1 var(--v4-latin);
  letter-spacing: 0.2em;
  transition: color 0.2s ease;
}
.v4-arc-filter b {
  font: 600 9px/1 var(--v4-latin);
  letter-spacing: 0.1em;
  color: var(--v4-faint);
}
.v4-arc-filter:hover { color: var(--v4-ink); }
.v4-arc-filter.is-active {
  color: var(--v4-ink);
}
.v4-arc-filter.is-active b { color: var(--v4-lime); }
.v4-arc-filter.is-active span { position: relative; }
.v4-arc-filter.is-active span::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 50%;
  width: 5px;
  height: 1px;
  background: var(--v4-lime);
}

.v4-arc-quote {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--v4-line);
  font-family: var(--v4-ar-display);
  font-size: 15px;
  line-height: 1.7;
  color: var(--v4-ink);
}
.v4-arc-quote span {
  display: block;
  margin-top: 6px;
  font: 600 8px/1.7 var(--v4-latin);
  letter-spacing: 0.22em;
  color: var(--v4-mut);
}

/* tabs row */
.v4-arc-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--v4-line);
  padding-bottom: 16px;
}

.v4-arc-tab {
  background: none;
  border: 1px solid var(--v4-line);
  color: var(--v4-mut);
  padding: 8px 13px;
  cursor: pointer;
  font: 700 9px/1 var(--v4-latin);
  letter-spacing: 0.18em;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.v4-arc-tab:hover { color: var(--v4-ink); border-color: var(--v4-faint); }
.v4-arc-tab.is-active {
  color: var(--v4-lime);
  border-color: var(--v4-lime);
}

.v4-arc-count-line {
  margin: 0 0 0 auto;
  font: 700 9.5px/1 var(--v4-latin);
  letter-spacing: 0.22em;
  color: var(--v4-mut);
}
.v4-arc-count-line b { color: var(--v4-ink); }

/* ============================================================
   PROJECT GRID
   ============================================================ */

.v4-arc-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px 14px;
  margin-top: 24px;
}

.v4-arc-card {
  display: block;
  text-decoration: none;
  color: var(--v4-ink);
}

.v4-arc-media {
  position: relative;
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--v4-line);
  background: var(--v4-bg-2);
}
.v4-arc-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.v4-arc-card:hover .v4-arc-media img { transform: scale(1.035); }
.v4-arc-card--poster .v4-arc-media img { object-position: 50% 14%; }

.v4-arc-meta {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin-top: 11px;
  flex-wrap: wrap;
}
.v4-arc-no {
  font: 700 10px/1 var(--v4-latin);
  letter-spacing: 0.14em;
  color: var(--v4-faint);
}
.v4-arc-name {
  font-family: var(--v4-display);
  font-weight: 400;
  font-size: 19px;
  line-height: 1;
  letter-spacing: 0.012em;
}
.v4-arc-ar {
  font-family: var(--v4-ar-display);
  font-size: 14px;
  line-height: 1.3;
  color: var(--v4-mut);
}
.v4-arc-arrow {
  margin-left: auto;
  font-style: normal;
  color: var(--v4-lime);
  font-size: 15px;
  transition: transform 0.3s ease;
}
.v4-arc-card:hover .v4-arc-arrow { transform: translateX(4px); }

.v4-arc-cat {
  display: block;
  margin-top: 6px;
  font: 600 8px/1.5 var(--v4-latin);
  letter-spacing: 0.2em;
  color: var(--v4-mut);
}

.v4-arc-card.is-static { cursor: default; }
.v4-arc-card.is-static:hover .v4-arc-media img { transform: none; }

.v4-arc-card[hidden] { display: none; }
.v4-arc-logos[hidden] { display: none; }

/* ============================================================
   SELECTED LOGOS GALLERY
   ============================================================ */

.v4-arc-logos {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.v4-arc-logo {
  margin: 0;
}
.v4-arc-logo span {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  padding: 20px;
  background: var(--v4-ink);
  border: 1px solid var(--v4-line);
  overflow: hidden;
}
.v4-arc-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.v4-arc-logo figcaption {
  margin-top: 9px;
  font: 700 8px/1 var(--v4-latin);
  letter-spacing: 0.22em;
  color: var(--v4-mut);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1180px) {
  .v4-arc-title { font-size: clamp(48px, 7.4vw, 100px); }
  .v4-arc-hero-in { grid-template-columns: minmax(0, 1fr) 236px; }
  .v4-arc-hero-rail { display: none; }
  .v4-arc-layout { grid-template-columns: 190px minmax(0, 1fr); gap: 24px; }
  .v4-arc-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .v4-arc-logos { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 1023px) {
  .v4-arc-hero-in {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 22px 24px 24px;
  }
  .v4-arc-title { white-space: normal; }
  .v4-arc-hero-text { text-align: right; }

  .v4-arc-main { padding: 0 0 44px; }
  .v4-arc-layout {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0;
  }

  /* compact horizontal category selector */
  .v4-arc-filters {
    flex-direction: row;
    align-items: center;
    gap: 20px;
    border-right: 0;
    border-bottom: 1px solid var(--v4-line);
    padding: 13px 24px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .v4-arc-filters::-webkit-scrollbar { display: none; }
  .v4-arc-filter-head,
  .v4-arc-quote { display: none; }
  .v4-arc-filter {
    width: auto;
    white-space: nowrap;
    padding: 2px 0;
    border: 0;
  }
  .v4-arc-filter.is-active span::before { display: none; }
  .v4-arc-filter b { margin-left: 6px; }

  .v4-arc-body { width: 100%; }
  .v4-arc-tabs { display: none; }

  .v4-arc-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 22px;
    padding: 0 24px;
  }
  .v4-arc-media { aspect-ratio: 4 / 3; }
  .v4-arc-name { font-size: 22px; }

  .v4-arc-logos {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 0 24px;
  }
  .v4-arc-logo span { padding: 16px; }
}

@media (max-width: 640px) {
  .v4-arc-hero-in { padding: 16px 18px 20px; }
  .v4-arc-kicker { font-size: 8.5px; letter-spacing: 0.22em; }
  .v4-arc-title { font-size: clamp(40px, 12.5vw, 60px); }
  .v4-arc-hero-text h2 { font-size: 30px; }
  .v4-arc-hero-text p { font-size: 12px; }

  .v4-arc-filters { padding-inline: 18px; gap: 16px; }
  .v4-arc-grid { padding: 0 18px; }
  .v4-arc-logos { padding: 0 18px; gap: 10px; }
  .v4-arc-logo figcaption { font-size: 7px; letter-spacing: 0.16em; }
}