/* ═══════════════════════════════════════════════════════════════════════════
   PROJECTS — selected case studies, presented as a folder system
   A tablet of three tabs; the active folder steps forward, the rest fan back.
═══════════════════════════════════════════════════════════════════════════ */
.projects {
  position: relative;
  background: var(--ink-deep);
  color: var(--limestone);
  padding: clamp(110px, 16vh, 200px) 0 clamp(90px, 14vh, 160px);
  overflow: hidden;
  isolation: isolate;
}
.projects::before,
.projects::after {
  content: '';
  position: absolute; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(176,141,87,0.30), transparent);
  z-index: 1;
}
.projects::before { top: 0; }
.projects::after  { bottom: 0; }

.projects-atmos {
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 0;
}
.projects-atmos::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 55% 40% at 22% 28%, rgba(176,141,87,0.16), transparent 65%),
    radial-gradient(ellipse 50% 50% at 82% 78%, rgba(176,141,87,0.10), transparent 60%);
  animation: prDrift 28s ease-in-out infinite;
}
@keyframes prDrift {
  0%,100% { transform: translate(0,0) scale(1); opacity: 1; }
  50%     { transform: translate(-18px,12px) scale(1.06); opacity: 0.75; }
}

.projects-grid {
  position: relative; z-index: 2;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--page-gutter);
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(60px, 8vw, 110px);
  align-items: center;
}
.projects-grid > * { min-width: 0; }

.projects-story { display: flex; flex-direction: column; gap: 26px; }
.projects-heading {
  margin: 10px 0 4px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.6rem, 5.4vw, 4.4rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--limestone);
}
.projects-heading em { font-style: italic; color: var(--bronze-light); }
.projects-body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.8;
  color: rgba(232, 226, 214, 0.65);
  max-width: 48ch;
}
.projects-meta {
  display: flex; align-items: stretch;
  gap: 32px;
  margin-top: 8px;
  font-family: var(--font-sc);
  font-size: 10px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--muted-light);
}
.projects-meta-item { display: flex; flex-direction: column; gap: 6px; }
.projects-meta-item strong {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: 28px;
  letter-spacing: 0.02em;
  color: var(--bronze-light);
  text-transform: none;
}
.projects-meta-divider { width: 1px; background: rgba(176,141,87,0.25); }

/* ═══════════════════════════════════════════════════════════════════════════
   FOLDER — tablet + tabs + cards (file-cabinet metaphor)
═══════════════════════════════════════════════════════════════════════════ */
.pr-folder {
  position: relative;
  width: 100%;
  max-width: 540px;
  justify-self: center;
  display: flex; flex-direction: column;
}

.pr-tabs {
  display: flex;
  gap: 4px;
  padding: 0 10px;
  position: relative;
  z-index: 3;
}
.pr-tab {
  flex: 1 1 0;
  min-width: 0;
  position: relative;
  padding: 14px 16px 22px;
  background: rgba(14, 10, 6, 0.55);
  border: 1px solid rgba(176,141,87,0.22);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  color: rgba(232,226,214,0.55);
  font-family: var(--font-sc);
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  text-align: left;
  cursor: pointer;
  transition:
    background 0.45s var(--ease-out),
    color      0.45s var(--ease-out),
    border-color 0.45s var(--ease-out),
    transform  0.55s var(--ease-out),
    padding    0.45s var(--ease-out);
}
.pr-tab__num {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: 18px;
  letter-spacing: 0;
  color: var(--bronze-pale);
  text-transform: none;
  margin-bottom: 2px;
  transition: color 0.45s var(--ease-out);
}
.pr-tab__title {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pr-tab:hover {
  color: var(--limestone);
  border-color: rgba(176,141,87,0.40);
}
.pr-tab[aria-selected="true"] {
  background: var(--cream);
  border-color: rgba(176,141,87,0.45);
  color: var(--ink);
  transform: translateY(-4px);
  padding-bottom: 26px;
  z-index: 4;
  box-shadow: 0 -6px 20px -8px rgba(0,0,0,0.45);
}
.pr-tab[aria-selected="true"] .pr-tab__num { color: var(--bronze); }

.pr-deck {
  position: relative;
  aspect-ratio: 4 / 5;
  margin-top: -1px;
  perspective: 1400px;
}

.pr-card {
  position: absolute;
  inset: 0;
  background: var(--cream);
  color: var(--ink);
  border: 1px solid rgba(176,141,87,0.28);
  border-radius: 0 12px 12px 12px;
  padding: clamp(22px, 3vw, 32px);
  display: flex; flex-direction: column;
  gap: 18px;
  transform-origin: 50% 0%;
  transform:
    translate3d(var(--tx,0), var(--ty,0), 0)
    rotate(var(--rot,0deg))
    scale(var(--sc,1));
  opacity: var(--op, 1);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.6) inset,
    0 34px 70px -20px rgba(0,0,0,0.60),
    0 10px 24px -10px rgba(0,0,0,0.40);
  transition:
    transform 0.75s var(--ease-out),
    opacity   0.55s var(--ease-out),
    box-shadow 0.55s var(--ease-out),
    filter    0.55s var(--ease-out);
  will-change: transform, opacity;
}
.pr-card > * { min-width: 0; }
.pr-card[data-state="active"] { --tx: 0px;   --ty: 0px;   --rot: 0deg;    --sc: 1.00; --op: 1;    z-index: 30; cursor: pointer; }
.pr-card[data-state="left"]   { --tx: -48px; --ty: 22px;  --rot: -3.6deg; --sc: 0.93; --op: 0.55; z-index: 10; filter: saturate(0.85); cursor: pointer; }
.pr-card[data-state="right"]  { --tx:  48px; --ty: 22px;  --rot:  3.6deg; --sc: 0.93; --op: 0.55; z-index: 10; filter: saturate(0.85); cursor: pointer; }
.pr-card[data-state="left"]:hover,
.pr-card[data-state="right"]:hover { --op: 0.85; filter: saturate(1); }

/* Backgrounded cards must not steal clicks from the active card.
   Interior elements (especially the CTA anchor) are non-interactive;
   only the card itself receives clicks, which the JS intercepts to
   activate the card rather than navigate. This prevents the "opens
   the wrong project" bug when a peeking edge is clicked. */
.pr-card:not([data-state="active"]) > * { pointer-events: none; }
.pr-card:not([data-state="active"]) .pr-card__cta { pointer-events: none; }

.pr-card__head {
  display: flex; justify-content: flex-end; align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(176,141,87,0.22);
}
.pr-card__tag {
  font-family: var(--font-sc);
  font-size: clamp(9px, 1vw, 10px); letter-spacing: 0.40em;
  text-transform: uppercase;
  color: var(--bronze);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pr-card__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(30px, 4.6vw, 44px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
  overflow-wrap: anywhere;
  hyphens: auto;
}
.pr-card__title em { font-style: italic; color: var(--bronze); }

.pr-card__media {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(176,141,87,0.20);
  background: #ede8df;
}
.pr-card__media img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
  filter: saturate(0.94) contrast(1.03);
  transform: scale(1.0);
  transition: transform 1.4s var(--ease-out), filter 0.6s var(--ease-out);
}
.pr-card[data-state="active"]:hover .pr-card__media img {
  transform: scale(1.04);
  filter: saturate(1) contrast(1.05);
}

.pr-card__desc {
  font-family: var(--font-body);
  font-size: clamp(13px, 1.15vw, 14.5px);
  line-height: 1.65;
  color: rgba(20,18,16,0.75);
  margin: 0;
  overflow-wrap: anywhere;
}

.pr-card__foot {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid rgba(176,141,87,0.22);
  min-width: 0;
  flex-wrap: wrap;
}
.pr-card__hint {
  font-family: var(--font-sc);
  font-size: 9.5px; letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--muted);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pr-card__cta {
  display: inline-flex; align-items: center; gap: 12px;
  flex: 0 0 auto;
  max-width: 100%;
  padding: 11px 22px;
  border: 1px solid var(--bronze);
  background: transparent;
  color: var(--bronze);
  font-family: var(--font-sc);
  font-size: 10px; letter-spacing: 0.42em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  z-index: 0;
  transition: color 0.5s var(--ease-out);
}
.pr-card__cta::before {
  content: ''; position: absolute; inset: 0;
  background: var(--bronze);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.55s var(--ease-out);
  z-index: -1;
}
.pr-card__cta:hover { color: var(--cream); }
.pr-card__cta:hover::before { transform: scaleX(1); }
.pr-card__cta .pr-arrow {
  font-family: var(--font-display);
  font-size: 16px; letter-spacing: 0;
}

.pr-spine {
  margin-top: 18px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  font-family: var(--font-sc);
  font-size: 10px; letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--muted-light);
}
.pr-spine__dots { display: flex; gap: 10px; }
.pr-spine__dot {
  width: 22px; height: 1px;
  background: rgba(176,141,87,0.25);
  transition: background 0.35s, width 0.35s;
}
.pr-spine__dot[aria-current="true"] {
  background: var(--bronze);
  width: 44px;
}

@media (max-width: 960px) {
  .projects-grid { grid-template-columns: 1fr; gap: 32px; }
  .pr-folder { max-width: 540px; }
}
@media (max-width: 768px) {
  /* On phones + small laptops we compress the story + folder so the
     whole section fits inside one 100svh slide — no hidden footer. */
  .projects { padding: clamp(64px, 9vh, 96px) 0 clamp(24px, 4vh, 40px); }
  .projects-grid { gap: 18px; align-items: start; }
  .projects-story { gap: 12px; }
  .projects-heading { font-size: clamp(1.8rem, 6vw, 2.4rem) !important; line-height: 1.18; padding-bottom: 0.08em; }
  .projects-body { font-size: 14px; line-height: 1.55; max-width: none; }
  .projects-meta { gap: 18px; margin-top: 0; }
  .projects-meta-item strong { font-size: 22px; }

  .pr-folder {
    max-width: 100%;
    margin-left: auto; margin-right: auto;
  }
  /* Deck: keep the 4/5 portrait ratio at every viewport so the card stays
     tall on phones (matching the desktop deck feel). aspect-ratio inherited
     from base .pr-deck rule — don't override here. */
  .pr-card { padding: 16px; gap: 10px; border-radius: 0 10px 10px 10px; }
  .pr-card__head { padding-bottom: 8px; }
  .pr-card__title { font-size: 22px !important; line-height: 1.15; }
  .pr-card__desc { font-size: 13px; line-height: 1.5; }
  .pr-card__media { min-height: 80px; }
  .pr-card__foot { padding-top: 6px; }
  .pr-card__cta { padding: 8px 14px; font-size: 9px; letter-spacing: 0.36em; }
  .pr-card__tag {
    white-space: normal;
    overflow-wrap: anywhere;
  }
  .pr-tab { padding: 8px 10px 14px; letter-spacing: 0.2em; font-size: 9px; }
  .pr-tab__num { font-size: 13px; }
  .pr-tab[aria-selected="true"] { padding-bottom: 16px; }
  .pr-spine { margin-top: 10px; font-size: 9px; }
}
@media (max-width: 540px) {
  /* Body text is too verbose on phone; heading + meta already set the context */
  .projects-body { display: none; }
  .projects-meta { gap: 16px; margin-top: 2px; }
  /* Keep portrait deck — aspect-ratio 4/5 from base rule means deck height
     ~ width × 1.25, giving the card a generous, magazine-like presence. */
  .pr-tab { padding: 6px 8px 12px; letter-spacing: 0.18em; }
  .pr-tab__num { font-size: 12px; }
  .pr-card { padding: 14px; gap: 8px; }
  .pr-card__title { font-size: 20px !important; }
  .pr-card__foot { flex-wrap: wrap; gap: 8px; }
  .pr-card__hint { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .pr-card, .pr-tab {
    transition: opacity 0.2s linear, background 0.2s linear, color 0.2s linear !important;
  }
  .projects-atmos::before { animation: none; }
}