/* ============================================================
   PORTFOLIO — The Compound Archive
   hero w/ blended render, featured project panel (swappable),
   impact rail, filter chips, project rail
   ============================================================ */

/* ---------- hero ---------- */
.p-hero {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
  padding-top: clamp(16px, 3vh, 40px);
}

/* blended operator render behind the hero */
.p-hero-art {
  position: absolute;
  z-index: -1;
  top: -110px;
  right: 0;
  width: min(74vw, 1150px);
  aspect-ratio: 16 / 9;
  pointer-events: none;
  background: url("../assets/hero-portfolio-desktop.jpg") center / cover no-repeat;
  -webkit-mask-image:
    linear-gradient(90deg, transparent 0%, #000 32%, #000 78%, transparent 99%),
    linear-gradient(180deg, #000 0%, #000 62%, transparent 96%);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(90deg, transparent 0%, #000 32%, #000 78%, transparent 99%),
    linear-gradient(180deg, #000 0%, #000 62%, transparent 96%);
  mask-composite: intersect;
  opacity: 0.85;
}

@media (min-width: 1025px) {
  .p-hero { overflow-x: clip; }
}

.p-hero .page-hero { padding-bottom: 0; }

.signature { margin-top: 30px; display: flex; align-items: center; gap: 16px; }
.signature .sig-script {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-size: 30px;
  color: var(--gold-bright);
  text-shadow: 0 0 calc(18px * var(--glow)) oklch(0.8 0.1 var(--gold-h) / 0.4);
}
.signature .sig-meta { font-size: 10.5px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--text-faint); line-height: 1.7; }

.p-hero .status-slab {
  margin-top: 28px;
  display: inline-flex;
  flex-direction: column;
  gap: 9px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
}
.p-hero .status-slab .ss-label { font-size: 10px; letter-spacing: 0.26em; text-transform: uppercase; color: var(--text-faint); }

/* ---------- impact rail (right column) ---------- */
.impact-rail { display: flex; flex-direction: column; gap: 14px; }
.rail-label {
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin: 6px 0 2px;
}
.impact-card {
  padding: 14px 16px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.impact-card .ic-label { font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 6px; }
.impact-card .ic-value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 27px;
  color: var(--gold-bright);
  line-height: 1;
  text-shadow: 0 0 calc(18px * var(--glow)) oklch(0.8 0.12 var(--gold-h) / 0.45);
}
.impact-card svg { flex: none; overflow: visible; filter: drop-shadow(0 3px 6px rgba(0,0,0,0.5)); }

.stack-row { display: flex; gap: 10px; }
.stack-tile {
  width: 50px; height: 50px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: var(--gold-soft);
  border: 1px solid oklch(0.7 0.06 var(--gold-h) / 0.22);
  background: linear-gradient(160deg, oklch(0.2 0.02 var(--gold-h) / 0.6), oklch(0.12 0.012 var(--gold-h) / 0.5));
  box-shadow: inset 0 1px 0 oklch(0.9 0.05 var(--gold-h) / 0.14), 0 10px 18px -12px rgba(0,0,0,0.8);
}
.stack-tile svg { width: 21px; height: 21px; }

.snap-row { display: flex; gap: 10px; }
.snap {
  width: 84px; height: 84px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid oklch(0.7 0.06 var(--gold-h) / 0.25);
  box-shadow: 0 14px 24px -14px rgba(0,0,0,0.9);
}
.snap img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ---------- featured project panel ---------- */
.featured {
  position: relative;
  z-index: 4;
  margin-top: clamp(30px, 5vh, 54px);
  padding: clamp(26px, 3.4vw, 46px);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: opacity 0.3s ease, translate 0.3s ease;
}
.featured.swapping { opacity: 0; translate: 0 14px; }

.featured .f-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 6px;
}
.featured .f-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(26px, 3.4vw, 48px);
  align-items: center;
}
.featured h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 3.2vw, 48px);
  line-height: 1.04;
  color: var(--text);
  margin: 14px 0 14px;
  text-wrap: balance;
}
.featured .f-desc { font-size: 15.5px; line-height: 1.6; color: var(--text-dim); max-width: 420px; margin-bottom: 22px; }

.featured .f-shot {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid oklch(0.75 0.07 var(--gold-h) / 0.3);
  box-shadow:
    0 40px 70px -30px rgba(0, 0, 0, 0.95),
    0 0 calc(50px * var(--glow)) oklch(0.7 0.1 var(--gold-h) / 0.14),
    inset 0 1px 0 oklch(0.9 0.06 var(--gold-h) / 0.2);
  transform: perspective(1400px) rotateY(-4deg) rotateX(1.5deg);
  transition: transform 0.6s cubic-bezier(.2,.8,.2,1);
}
.featured .f-shot:hover { transform: perspective(1400px) rotateY(0deg) rotateX(0deg) translateY(-4px); }
.featured .f-shot img { width: 100%; display: block; aspect-ratio: 4 / 3; object-fit: cover; }
.featured .f-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, oklch(0.95 0.04 var(--gold-h) / 0.08), transparent 40%);
  pointer-events: none;
}

/* problem / system / proof columns */
.f-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 2.4vw, 34px);
  margin-top: clamp(26px, 3.4vw, 44px);
  padding-top: clamp(22px, 2.6vw, 32px);
  border-top: 1px solid oklch(0.7 0.06 var(--gold-h) / 0.16);
}
.f-col .fc-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.f-col .fc-icon {
  width: 34px; height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: var(--gold-bright);
  border: 1px solid oklch(0.75 0.08 var(--gold-h) / 0.35);
  background: oklch(0.78 0.09 var(--gold-h) / 0.07);
  flex: none;
}
.f-col .fc-icon svg { width: 16px; height: 16px; }
.f-col h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16.5px;
  color: var(--text);
  letter-spacing: 0.01em;
}
.f-col p { font-size: 13.5px; line-height: 1.6; color: var(--text-dim); }

/* proof stats inside third column */
.f-proof { display: flex; flex-direction: column; gap: 10px; }
.f-proof .fp-row { display: flex; align-items: baseline; gap: 12px; }
.f-proof .fp-val {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 21px;
  color: var(--gold-bright);
  min-width: 78px;
  text-shadow: 0 0 calc(14px * var(--glow)) oklch(0.8 0.12 var(--gold-h) / 0.4);
}
.f-proof .fp-lab { font-size: 12px; letter-spacing: 0.06em; color: var(--text-faint); text-transform: uppercase; }

.featured .f-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: clamp(24px, 3vw, 36px);
  flex-wrap: wrap;
}
.case-link { /* canonical definition lives in css/site.css */ }
.f-count { font-size: 13px; letter-spacing: 0.14em; color: var(--text-faint); }

/* ---------- archive rail ---------- */
.rail-section { position: relative; z-index: 4; margin-top: clamp(36px, 6vh, 64px); }
.rail-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 18px; }
.rail-nav { display: flex; gap: 10px; }
.rail-btn {
  width: 44px; height: 44px;
  border-radius: 999px;
  border: 1px solid var(--gold-line);
  background: oklch(0.85 0.05 var(--gold-h) / 0.04);
  color: var(--gold-bright);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.rail-btn:hover { background: oklch(0.78 0.09 var(--gold-h) / 0.1); box-shadow: 0 0 calc(18px * var(--glow)) oklch(0.78 0.09 var(--gold-h) / 0.25); }
.rail-btn svg { width: 18px; height: 18px; }

.rail-track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 14px 4px 22px;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
}
.rail-track::-webkit-scrollbar { display: none; }

.rail-card {
  position: relative;
  flex: none;
  width: 252px;
  scroll-snap-align: start;
  border-radius: 18px;
  border: 1px solid transparent;
  padding: 18px 18px 16px;
  text-align: left;
  cursor: pointer;
  background:
    var(--metal-face) padding-box,
    var(--metal-edge) border-box;
  box-shadow:
    0 30px 50px -26px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 oklch(0.92 0.06 var(--gold-h) / 0.18),
    inset 0 -22px 38px -26px rgba(0, 0, 0, 0.8);
  overflow: hidden;
  transition: transform 0.45s cubic-bezier(.2,.8,.2,1), box-shadow 0.4s ease, opacity 0.3s ease;
  font-family: var(--font-body);
}
.rail-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(200deg, transparent 30%, rgba(0, 0, 0, 0.72) 78%),
    var(--rc-img, none) center / cover no-repeat;
  opacity: 0.34;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.rail-card:hover::before { opacity: 0.5; }
.rail-card:hover { transform: translateY(-6px); }
.rail-card.active {
  box-shadow:
    0 30px 50px -26px rgba(0, 0, 0, 0.9),
    0 0 calc(34px * var(--glow)) oklch(0.75 0.1 var(--gold-h) / 0.3),
    inset 0 1px 0 oklch(0.92 0.06 var(--gold-h) / 0.26),
    inset 0 0 0 1px oklch(0.82 0.09 var(--gold-h) / 0.55);
}
.rail-card.hidden { display: none; }
.rail-card .rc-num {
  position: relative;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 30px;
  background: linear-gradient(170deg, var(--gold-bright), var(--gold-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.rail-card .rc-body { position: relative; margin-top: 44px; }
.rail-card h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 5px;
}
.rail-card .rc-tag { font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-faint); }
.rail-card .rc-go {
  position: absolute;
  right: 14px; top: 14px;
  width: 32px; height: 32px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: var(--gold-bright);
  border: 1px solid oklch(0.78 0.08 var(--gold-h) / 0.4);
  background: oklch(0.1 0.01 var(--gold-h) / 0.5);
}
.rail-card .rc-go svg { width: 14px; height: 14px; }

/* ---------- responsive ---------- */
@media (max-width: 1180px) {
  .p-hero { grid-template-columns: 1fr; }
  .impact-rail { flex-direction: row; flex-wrap: wrap; align-items: stretch; }
  .impact-rail .rail-label { width: 100%; }
  .impact-card { flex: 1 1 180px; }
  .impact-rail .rail-label.snaps-label, .impact-rail .snap-row { display: none; }
}

@media (max-width: 1024px) {
  .p-hero-art {
    position: relative;
    inset: auto;
    width: calc(100% + 44px);
    margin: -10px -22px 0;
    aspect-ratio: 4 / 3.4;
    order: -1;
    background-image: url("../assets/hero-portfolio-mobile.jpg");
    background-position: center 20%;
    -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 58%, transparent 97%);
    mask-image: linear-gradient(180deg, #000 0%, #000 58%, transparent 97%);
  }
  .p-hero { display: flex; flex-direction: column; gap: 8px; padding-top: 0; }
  .p-hero .page-hero { margin-top: -26vw; padding-top: 0; }
  .signature { margin-top: 20px; }
  .p-hero .status-slab { margin-top: 20px; }

  .featured { margin-top: 26px; }
  .featured .f-grid { grid-template-columns: 1fr; gap: 22px; }
  .featured .f-shot { transform: none; }
  .f-cols { grid-template-columns: 1fr; gap: 20px; }

  .rail-card { width: 218px; }
}