/* PresentTool™ Storytelling — section: materials (v3.7.0)
   Cream-surface section + slide-in info-panel.
   ──────────────────────────────────────────────────────────── */

.story-section--materials {
  position: relative;
  width: 100%;
  background: var(--pt-surface-1);
  color: var(--pt-text);
  padding: 96px 24px 96px;
  overflow: hidden;
}

.pt-materials__inner {
  max-width: 1080px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* ────── Header ────── */
.pt-materials__head {
  margin-bottom: 56px;
  max-width: 720px;
}
.pt-materials__kicker {
  font-family: var(--pt-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pt-primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.pt-materials__kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pt-primary);
}
.pt-materials__title {
  font-family: var(--pt-serif);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(32px, 4.4vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.018em;
  margin: 0 0 18px;
  color: var(--pt-text);
}
.pt-materials__lede {
  font-family: var(--pt-serif);
  font-size: 18px;
  line-height: 1.55;
  color: var(--pt-text-muted);
  margin: 0;
  max-width: 620px;
}

/* ────── Tile grid (single-column stack) ────── */
.pt-materials__grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.pt-materials__item { margin: 0; }

.pt-materials__tile {
  width: 100%;
  display: grid;
  grid-template-columns: 240px 1fr auto;
  gap: 28px;
  align-items: center;
  background: var(--pt-surface-0);
  border: 1px solid var(--pt-border);
  border-radius: 14px;
  padding: 18px;
  text-align: left;
  cursor: pointer;
  font: inherit;
  color: inherit;
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
  appearance: none;
  -webkit-appearance: none;
}
.pt-materials__tile:hover,
.pt-materials__tile:focus-visible {
  transform: translateY(-2px);
  border-color: var(--pt-border-strong);
  box-shadow: 0 14px 40px rgba(20, 18, 14, 0.08);
  outline: none;
}
.pt-materials__tile:focus-visible {
  outline: 2px solid var(--pt-primary);
  outline-offset: 3px;
}
.pt-materials__tile.is-active {
  border-color: var(--pt-primary);
  box-shadow: 0 0 0 1px var(--pt-primary), 0 18px 48px rgba(139, 69, 19, 0.12);
}

.pt-materials__swatch {
  width: 240px;
  height: 180px;
  border-radius: 10px;
  background: #B89A6B center / cover no-repeat;
  box-shadow: 0 1px 2px rgba(20, 18, 14, 0.06), 0 16px 40px rgba(20, 18, 14, 0.10);
  border: 1px solid rgba(20, 18, 14, 0.05);
  flex: 0 0 auto;
}
.pt-materials__swatch--default {
  background:
    radial-gradient(ellipse 70% 60% at 30% 30%, rgba(255, 230, 200, 0.35) 0%, transparent 60%),
    linear-gradient(135deg, #B58652 0%, #6E3F1A 100%);
}

/* Real Unsplash material photos (ported from mockup CSS) */
.mat-eiken  { background-color: #8B5524; background-image: url("https://images.unsplash.com/photo-1584285405429-136bf988919c?w=520&auto=format&fit=crop&q=75"); }
.mat-linnen { background-color: #D4C29A; background-image: url("https://images.unsplash.com/photo-1612699180988-3f4a01c54f7d?w=520&auto=format&fit=crop&q=75"); }
.mat-beton  { background-color: #8E8C84; background-image: url("https://images.unsplash.com/photo-1517414644021-de4c9c5c2434?w=520&auto=format&fit=crop&q=75"); }
.mat-brons  { background-color: #6B3E15; background-image: url("https://images.unsplash.com/photo-1610177498373-1c5773fac4ed?w=520&auto=format&fit=crop&q=75"); }
.mat-wol    { background-color: #75634F; background-image: url("https://images.unsplash.com/photo-1581375074612-d1fd0e661aeb?w=520&auto=format&fit=crop&q=75"); }
.mat-klei   { background-color: #A07A55; background-image: url("https://images.unsplash.com/photo-1612885451586-fbcfe6dcd5e8?w=520&auto=format&fit=crop&q=75"); }

.pt-materials__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.pt-materials__label {
  font-family: var(--pt-sans);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--pt-text);
}
.pt-materials__accent {
  color: var(--pt-primary);
  font-weight: 500;
}
.pt-materials__desc {
  font-family: var(--pt-serif);
  font-style: italic;
  font-size: 15px;
  line-height: 1.5;
  color: var(--pt-text-muted);
  max-width: 520px;
}
.pt-materials__provenance {
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--pt-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pt-text-subtle);
}
.pt-materials__dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--pt-text-subtle);
}
.pt-materials__chev {
  font-family: var(--pt-mono);
  font-size: 18px;
  color: var(--pt-text-subtle);
  padding: 0 6px;
  transition: transform 0.16s ease, color 0.16s ease;
}
.pt-materials__tile:hover .pt-materials__chev,
.pt-materials__tile:focus-visible .pt-materials__chev,
.pt-materials__tile.is-active .pt-materials__chev {
  color: var(--pt-primary);
  transform: translateX(3px);
}

/* ────── Slide-in info-panel ────── */
.pt-materials__panel-host {
  position: fixed;
  inset: 0;
  z-index: 80;
  pointer-events: none;
}
.pt-materials__panel-host[data-panel-state="open"] {
  pointer-events: auto;
}

.pt-materials__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(20, 18, 14, 0.32);
  opacity: 0;
  transition: opacity 0.28s cubic-bezier(0.32, 0.72, 0.30, 1.00);
}
.pt-materials__panel-host[data-panel-state="open"] .pt-materials__backdrop {
  opacity: 1;
}

.pt-materials__panel {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: 480px;
  max-width: 100%;
  background: var(--pt-surface-0);
  border-left: 1px solid var(--pt-border);
  box-shadow: -32px 0 80px rgba(20, 18, 14, 0.18);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.32, 0.72, 0.30, 1.00);
  outline: none;
}
.pt-materials__panel-host[data-panel-state="open"] .pt-materials__panel {
  transform: translateX(0);
}

.pt-materials__panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px 14px;
  border-bottom: 1px solid var(--pt-border);
  flex: 0 0 auto;
}
.pt-materials__panel-eyebrow {
  font-family: var(--pt-mono);
  font-size: 10.5px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--pt-text-muted);
}
.pt-materials__panel-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--pt-surface-2);
  border: 1px solid var(--pt-border);
  color: var(--pt-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.12s ease;
  padding: 0;
}
.pt-materials__panel-close:hover { background: var(--pt-surface-3); }
.pt-materials__panel-close svg { width: 16px; height: 16px; }

.pt-materials__panel-hero {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #B89A6B center / cover no-repeat;
  flex: 0 0 auto;
}

.pt-materials__panel-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow-y: auto;
  flex: 1 1 auto;
}
.pt-materials__panel-title {
  font-family: var(--pt-serif);
  font-style: italic;
  font-weight: 500;
  font-size: 26px;
  letter-spacing: -0.01em;
  color: var(--pt-text);
  margin: 0;
}
.pt-materials__panel-accent { color: var(--pt-primary); }
.pt-materials__panel-desc {
  font-family: var(--pt-serif);
  font-size: 15px;
  line-height: 1.55;
  color: var(--pt-text-muted);
  margin: 0;
}
.pt-materials__panel-rows {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 10px 14px;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--pt-border);
  font-size: 13px;
}
.pt-materials__panel-rows dt {
  font-family: var(--pt-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pt-text-subtle);
  margin: 0;
  align-self: baseline;
}
.pt-materials__panel-rows dd {
  margin: 0;
  color: var(--pt-text);
  line-height: 1.5;
}
.pt-materials__panel-cta {
  margin-top: auto;
  background: var(--pt-primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 14px 18px;
  font-family: var(--pt-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  transition: background 0.12s ease;
}
.pt-materials__panel-cta:hover {
  background: #6E3610;
  color: #fff;
  text-decoration: none;
}

/* Lock body scroll while panel open (only on mobile where it goes full-width). */
body.pt-materials-panel-open { overflow: hidden; }

@media (min-width: 721px) {
  body.pt-materials-panel-open { overflow: auto; }
}

/* ────── Mobile ────── */
@media (max-width: 720px) {
  .story-section--materials {
    padding: 56px 18px 64px;
  }
  .pt-materials__head { margin-bottom: 32px; }
  .pt-materials__title { font-size: 28px; }
  .pt-materials__lede  { font-size: 15.5px; }

  .pt-materials__tile {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 14px;
  }
  .pt-materials__swatch {
    width: 100%;
    height: 200px;
  }
  .pt-materials__chev { display: none; }

  .pt-materials__panel { width: 100%; border-left: none; }
  .pt-materials__panel-body { padding: 18px 18px 22px; }
  .pt-materials__panel-rows { grid-template-columns: 90px 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .pt-materials__tile,
  .pt-materials__chev,
  .pt-materials__panel,
  .pt-materials__backdrop { transition: none; }
}