/* Digital Strings(R) - Catalogo de mascaras maxilofaciales
   Hoja de estilos compartida ES + EN. Las divergencias de render por
   pagina (min-height de imagen, fondo movil, --zoom-label) viven en un
   <style> override inline en cada HTML, despues de este <link>. */

:root {
  --azul:       #2A2F87;
  --azul-oscuro:#111431;
  --amarillo:   #FFBB00;
  --acento:     #00BFA6;
  --fondo:      #EEF7FF;
  --fondo-claro:#DDEEFF;
  --bg:         var(--fondo);
  --bg2:        #F7FBFF;
  --surface:    rgba(255,255,255,0.96);
  --surface2:   rgba(240,246,255,0.98);
  --border:     rgba(42,47,135,0.10);
  --border2:    rgba(42,47,135,0.14);
  --text:       var(--azul-oscuro);
  --muted:      #4b4f95;
  --accent:     var(--acento);
  --accent2:    var(--amarillo);
  --accent3:    var(--azul);
  --zone-nasal:     #f07055;
  --zone-orbital:   #5b9cf6;
  --zone-zigoma:    #c07af0;
  --zone-mandibula: #34d88a;
  --zone-full:      #94a3b8;
  --font:    'Oxanium', sans-serif;
  --font-d:  'Space Grotesk', 'Oxanium', sans-serif;
  --mono:    'IBM Plex Mono', monospace;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background:
    radial-gradient(circle at 12% 0%, rgba(0,191,166,0.14), transparent 28%),
    radial-gradient(circle at 88% 10%, rgba(255,187,0,0.12), transparent 22%),
    linear-gradient(180deg, #eaf6ff 0%, #dff0ff 48%, #edf7ff 100%);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
}
h1, h2, h3, h4 {
  font-family: var(--font-d);
  letter-spacing: -0.01em;
  text-wrap: balance;
}

/* ── COVER ── */
.cover {
  background:
    radial-gradient(60% 75% at 12% 18%, rgba(255,187,0,0.12), transparent 58%),
    radial-gradient(62% 74% at 88% 78%, rgba(0,191,166,0.22), transparent 56%),
    linear-gradient(135deg, rgba(10,14,40,0.94) 0%, rgba(28,33,92,0.88) 56%, rgba(0,191,166,0.48) 100%);
  padding: clamp(1.75rem, 6vw, 3.5rem);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border2);
}
.cover::before {
  content: '';
  position: absolute; top: 0; right: 0; bottom: 0;
  width: 45%;
  background:
    radial-gradient(ellipse 60% 80% at 70% 50%, rgba(0,191,166,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 85% 30%, rgba(42,47,135,0.10) 0%, transparent 60%);
  pointer-events: none;
}
.cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  pointer-events: none;
  opacity: 0.42;
}
.cover-shell {
  position: relative;
  z-index: 1;
  width: min(100%, 1220px);
  margin: 0 auto;
  padding: 0;
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.5rem);
}
.cover-topbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}
.cover-brand {
  display: grid;
  gap: 0.8rem;
  max-width: 540px;
  min-width: 0;
}
.cover-brand-link {
  display: inline-flex;
  align-items: center;
  color: inherit;
  text-decoration: none;
}
.cover-brand-logo {
  display: block;
  width: 100%;
  max-width: min(54vw, 360px);
  margin: 0;
  max-height: none;
  object-fit: contain;
  filter: drop-shadow(0 18px 30px rgba(0,0,0,0.34));
}
.cover-meta {
  display: grid;
  gap: 4px;
}
.cover-brand-name {
  font-family: var(--font-d);
  font-size: 1rem; font-weight: 700;
  color: rgba(255,255,255,0.82); letter-spacing: 0.18em;
  text-transform: uppercase;
}
.cover-brand-url {
  margin: 0;
  font-family: var(--font-d);
  color: rgba(232, 238, 255, 0.82);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.4;
  max-width: 56ch;
}
.cover-eyebrow {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.14);
  color: #eff2ff;
  font-family: var(--font-d);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 0 14px 28px rgba(5,8,24,0.18);
  margin-bottom: 0;
}
.cover h1 {
  font-family: var(--font-d);
  font-size: clamp(2.45rem, 5.4vw, 5.25rem);
  font-weight: 700; line-height: 0.95;
  letter-spacing: -0.045em;
  color: #fff; max-width: 11ch;
  margin-bottom: 0;
}
.cover h1 span { color: var(--accent); }
.cover-sub {
  font-size: clamp(1rem, 3.2vw, 1.25rem);
  color: rgba(255,255,255,0.9);
  max-width: 62ch; font-weight: 600;
  line-height: 1.5; margin-bottom: 0;
}
.cover-pills { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-bottom: 0; }
.cover-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.82rem;
  border-radius: 999px;
  background: rgba(10,14,40,0.3);
  border: 1px solid rgba(255,255,255,0.12);
  color: #eff2ff;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}

.cover-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: clamp(1.4rem, 3vw, 2.4rem);
  align-items: stretch;
}
.cover-copy {
  display: grid;
  align-content: center;
  gap: clamp(1rem, 2vw, 1.4rem);
  min-width: 0;
}
.cover-panel {
  align-self: stretch;
  display: grid;
  gap: 1rem;
  padding: clamp(1.35rem, 2.6vw, 1.8rem);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.12) 0%, rgba(220,231,255,0.08) 100%);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 28px 56px rgba(5,8,24,0.2);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.cover-panel-kicker {
  margin: 0;
  color: #99ece0;
  font-family: var(--font-d);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.cover-panel h2 {
  margin: 0;
  color: #fff;
  font-family: var(--font-d);
  font-size: clamp(1.2rem, 2.6vw, 1.7rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}
.cover-panel-body {
  margin: 0;
  color: rgba(233,238,255,0.9);
  font-size: 0.98rem;
  line-height: 1.5;
  max-width: 46ch;
}
.cover-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}
.cover-stat {
  display: grid;
  gap: 0.4rem;
  padding: 0.9rem;
  border-radius: 18px;
  background: rgba(7,11,33,0.26);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}
.cover-stat span {
  color: rgba(169,179,231,0.9);
  font-family: var(--font-d);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.cover-stat strong {
  color: #fff;
  font-family: var(--font-d);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
}

/* ── NAV ── */
.anatomy-nav {
  background: rgba(255,255,255,0.84);
  border-bottom: 1px solid rgba(42,47,135,0.10);
  padding: 0.65rem max(1rem, calc((100vw - 1180px) / 2));
  display: flex; gap: 0.5rem;
  overflow-x: auto;
  position: sticky; top: 0; z-index: 100;
  scrollbar-width: none;
  align-items: center;
  backdrop-filter: blur(16px);
  box-shadow: 0 16px 34px rgba(42,47,135,0.08);
}
.anatomy-nav::-webkit-scrollbar { display: none; }
.anav-btn {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.58rem 0.9rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: rgba(242,245,255,0.92);
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s, background 0.2s, transform 0.2s;
  position: relative;
}
.anav-btn:hover { color: var(--accent3); background: rgba(255,255,255,0.98); transform: translateY(-1px); }
.anav-btn.active { color: var(--accent3); border-color: rgba(42,47,135,0.18); font-weight: 700; background: #fff; box-shadow: 0 10px 24px rgba(42,47,135,0.08); }
.anav-btn[data-zone="nasal"].active    { color: var(--zone-nasal);     border-bottom-color: var(--zone-nasal); }
.anav-btn[data-zone="orbital"].active  { color: var(--zone-orbital);   border-bottom-color: var(--zone-orbital); }
.anav-btn[data-zone="zigoma"].active   { color: var(--zone-zigoma);    border-bottom-color: var(--zone-zigoma); }
.anav-btn[data-zone="mandibula"].active{ color: var(--zone-mandibula); border-bottom-color: var(--zone-mandibula); }
.anav-btn[data-zone="full"].active     { color: var(--zone-full);      border-bottom-color: var(--zone-full); }
.anav-btn[data-zone="nasal"].active    { border-color: rgba(240,112,85,0.36); }
.anav-btn[data-zone="orbital"].active  { border-color: rgba(91,156,246,0.36); }
.anav-btn[data-zone="zigoma"].active   { border-color: rgba(192,122,240,0.36); }
.anav-btn[data-zone="mandibula"].active{ border-color: rgba(52,216,138,0.36); }
.anav-btn[data-zone="full"].active     { border-color: rgba(148,163,184,0.36); }
/* ── MAIN ── */
.main { padding: clamp(3rem, 6vw, 4rem) clamp(1rem, 4vw, 3rem) 6rem; max-width: 1200px; margin: 0 auto; }
.zone-section { display: none; }
.zone-section.active { display: block; animation: fadein 0.25s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }

/* ── ZONE HEADER ── */
.zone-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem; padding-bottom: 1.8rem;
  border-bottom: 1px solid rgba(42,47,135,0.12);
  text-align: center;
}
.zone-title-block { text-align: center; max-width: 780px; width: 100%; }
.zone-title-block p { margin-left: auto; margin-right: auto; }
.zone-stats { justify-content: center; }
.zone-badge {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(42,47,135,0.12);
  box-shadow: 0 14px 28px rgba(42,47,135,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; flex-shrink: 0;
}
.zone-title-block h2 {
  font-family: var(--font-d);
  font-size: clamp(1.65rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.08;
  margin-bottom: 0.5rem;
}
.zone-title-block p { color: var(--muted); font-size: 1rem; max-width: 780px; line-height: 1.55; font-weight: 600; }
.zone-stats { display: flex; gap: 2rem; margin-top: 0.8rem; flex-wrap: wrap; }
.zstat { font-family: var(--mono); font-size: 10.5px; color: var(--muted); }
.zstat strong { color: var(--accent3); font-size: 12.5px; display: block; }

/* ── MASK CARDS ── */
.masks-list { display: flex; flex-direction: column; gap: 1.8rem; }
.mask-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(240,246,255,0.96));
  border: 1px solid rgba(42,47,135,0.10);
  border-radius: 18px;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(420px, 1.05fr) minmax(0, 1fr);
  align-items: stretch;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 20px 46px rgba(42,47,135,0.08);
}
.mask-card:hover {
  border-color: rgba(0,191,166,0.3);
  box-shadow: 0 28px 58px rgba(42,47,135,0.12);
  transform: translateY(-1px);
}

/* ── PHOTO PANEL ── */
.mask-img {
  position: relative; overflow: hidden;
  min-height: 480px;
  height: 100%;
  background: var(--bg2);
  border-right: 1px solid rgba(42,47,135,0.10);
}
.mask-img-carousel { position: relative; width: 100%; height: 100%; min-height: inherit; }
.mask-img-track { position: relative; width: 100%; height: 100%; }
.mask-img-slide {
  position: absolute; inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease;
}
.mask-img-slide.is-active { opacity: 1; visibility: visible; }
.mask-img-arrow {
  position: absolute; top: 50%;
  transform: translateY(-50%);
  width: 38px; height: 38px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(6,10,18,0.62);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-d); font-size: 18px; line-height: 1;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s ease, background 0.2s ease, transform 0.2s ease;
  z-index: 4;
  padding: 0;
}
.mask-img-arrow:hover { background: rgba(0,191,166,0.85); transform: translateY(-50%) scale(1.06); }
.mask-img-arrow:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  opacity: 1;
}
.mask-img-arrow--prev { left: 10px; }
.mask-img-arrow--next { right: 10px; }
.mask-img:hover .mask-img-arrow,
.mask-img:focus-within .mask-img-arrow { opacity: 1; }
.mask-img-dots {
  position: absolute;
  bottom: 36px;
  left: 0; right: 0;
  display: flex; justify-content: center; gap: 6px;
  z-index: 3;
  pointer-events: auto;
}
.mask-img-dot {
  width: 8px; height: 8px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.55);
  background: rgba(6,10,18,0.45);
  padding: 0;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.mask-img-dot.is-active {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.18);
}
.mask-img-dot:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
@media (max-width: 820px) {
  .mask-img-arrow { opacity: 1; width: 34px; height: 34px; font-size: 16px; }
  .mask-img-arrow--prev { left: 8px; }
  .mask-img-arrow--next { right: 8px; }
  .mask-img-dots { bottom: 10px; }
}
.mask-img-trigger {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: zoom-in;
  font: inherit;
}
.mask-img-trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -5px;
}
.mask-img::after {
  content: var(--zoom-label, 'Zoom');
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(6,10,18,0.72);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.86);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}
.mask-img:hover::after,
.mask-img:focus-within::after {
  opacity: 1;
  transform: none;
}
.mask-img-trigger img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
  transition: transform 0.45s ease;
}
@media (max-width: 820px) {
  .mask-img-trigger { display: flex; align-items: center; justify-content: center; }
  .mask-img-trigger img {
    object-fit: contain;
    object-position: center center;
    background: linear-gradient(135deg, #111431 0%, #2A2F87 100%);
  }
}
.mask-card:hover .mask-img-trigger img { transform: scale(1.04); }
.mask-img-caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(6,10,18,0.88));
  padding: 28px 10px 8px;
  font-family: var(--mono);
  font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(221,228,240,0.65);
  pointer-events: none;
}

/* ── CARD BODY ── */
.mask-body { padding: clamp(1.15rem, 2.5vw, 1.6rem) clamp(1.15rem, 3vw, 1.8rem); min-width: 0; }
.mask-top {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 0.5rem;
  gap: 1rem;
}
.mask-id {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 2px;
}
.mask-name {
  font-family: var(--font-d);
  font-size: clamp(1.2rem, 2vw, 1.42rem); font-weight: 700; line-height: 1.16; color: var(--accent3);
}
.mask-badge {
  font-family: var(--mono);
  font-size: 9px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 3px; flex-shrink: 0;
  margin-top: 2px;
  border: 1px solid;
}
.mask-material-chip {
  display: flex; align-items: center; gap: 6px;
  margin: 6px 0 10px;
  font-size: 0.88rem; color: #5d649d; font-weight: 600;
}
.mask-material-chip::before {
  content: '⬡';
  color: var(--accent);
  font-size: 11px;
  flex-shrink: 0;
}
.mask-desc {
  font-size: 0.98rem; color: var(--muted);
  line-height: 1.6; margin-bottom: 1.2rem;
}

/* ── SPECS ── */
.specs-row {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem; margin-bottom: 1.2rem;
}
.spec-box {
  background: rgba(255,255,255,0.84);
  border: 1px solid rgba(42,47,135,0.10);
  border-radius: 14px; padding: 0.75rem 0.9rem;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
}
.spec-k {
  font-family: var(--mono);
  font-size: 8.5px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 3px;
}
.spec-v { font-size: 0.86rem; font-weight: 700; line-height: 1.3; color: var(--accent3); }
.section-divider {
  border: none; border-top: 1px solid rgba(42,47,135,0.10);
  margin: 1rem 0;
}

/* ── MAT TAGS ── */
.mat-row { margin-bottom: 1rem; }
.mat-label {
  font-family: var(--mono);
  font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 0.5rem;
}
.mat-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.mat-tag {
  font-size: 0.8rem; padding: 0.26rem 0.7rem;
  border: 1px solid rgba(42,47,135,0.10);
  border-radius: 999px;
  background: rgba(255,255,255,0.84);
  color: var(--accent3);
  font-weight: 700;
}

/* ── PRINT BOX ── */
.print-box {
  background: rgba(0,191,166,0.10);
  border: 1px solid rgba(0,191,166,0.22);
  border-radius: 16px;
  padding: 0.9rem 1.1rem;
  margin-bottom: 1rem;
}
.print-box-title {
  font-family: var(--mono);
  font-size: 9px; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 0.5rem;
  display: flex; align-items: center; gap: 6px;
}
.print-box-title::before { content: '⬡'; font-size: 11px; }
.print-box p { font-size: 0.88rem; color: var(--muted); line-height: 1.6; font-weight: 600; }

/* ── ANATOMY DIAGRAM (collapsible) ── */
.diag-details {
  border: 1px solid rgba(42,47,135,0.10);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 1rem;
}
.diag-details summary {
  font-family: var(--mono);
  font-size: 9px; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--accent3);
  padding: 8px 12px;
  cursor: pointer;
  list-style: none;
  display: flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.84);
}
.diag-details summary::before { content: '▶'; font-size: 8px; }
.diag-details[open] summary::before { content: '▼'; }
.diag-details svg { display: block; width: 100%; max-height: 200px; background: var(--bg2); }

/* ── REFS ── */
.refs-box {
  background: rgba(255,255,255,0.84);
  border: 1px solid rgba(42,47,135,0.10);
  border-radius: 16px; padding: 0.9rem 1.1rem;
}
.refs-title {
  font-family: var(--mono);
  font-size: 9px; letter-spacing: 0.13em; text-transform: uppercase;
  color: rgba(255,187,0,0.7); margin-bottom: 0.6rem;
}
.ref-item {
  font-size: 0.78rem; color: var(--muted);
  line-height: 1.55; padding: 3px 0;
  border-top: 1px solid rgba(42,47,135,0.10);
}
.ref-item:first-of-type { border-top: none; }
.ref-item a { color: rgba(255,187,0,0.7); text-decoration: none; }
.ref-item a:hover { text-decoration: underline; }

/* ── DOCUMENTACIÓN OFICIAL ── */
.doc-section { margin-top: clamp(2.5rem, 5vw, 3.5rem); }
.doc-section-head { max-width: 780px; margin-bottom: 1.4rem; }
.doc-section-head h2 {
  font-family: var(--font-d);
  font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 700; line-height: 1.1;
  margin: 0 0 0.5rem;
}
.doc-section-head p { color: var(--muted); font-size: 0.98rem; line-height: 1.55; font-weight: 600; margin: 0; }
.doc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.doc-card {
  display: flex; flex-direction: column; gap: 0.55rem;
  background: rgba(255,255,255,0.84);
  border: 1px solid rgba(42,47,135,0.10);
  border-radius: 16px;
  padding: 1.1rem 1.2rem;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.doc-card:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(42,47,135,0.10); }
.doc-card-eyebrow {
  font-family: var(--mono);
  font-size: 9px; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--muted);
  display: flex; align-items: center; gap: 6px;
}
.doc-card-eyebrow::before { content: '⬡'; font-size: 11px; }
.doc-card-title { font-family: var(--font-d); font-size: 1.05rem; font-weight: 700; line-height: 1.2; color: var(--text); }
.doc-card p { font-size: 0.85rem; color: var(--muted); line-height: 1.55; font-weight: 600; margin: 0; }
.doc-card-cta {
  margin-top: 0.2rem;
  font-family: var(--mono);
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 500;
  display: inline-flex; align-items: center; gap: 6px;
}
.doc-card--warranty .doc-card-eyebrow::before,
.doc-card--warranty .doc-card-cta { color: var(--accent); }
.doc-card--care .doc-card-eyebrow::before,
.doc-card--care .doc-card-cta { color: rgba(255,187,0,0.9); }
@media (max-width: 640px) { .doc-grid { grid-template-columns: 1fr; } }

/* ── IMAGE LIGHTBOX ── */
.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 2rem);
  background: rgba(3,7,14,0.88);
  backdrop-filter: blur(16px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.image-lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}
.image-lightbox[hidden] { display: none; }
.lightbox-figure {
  width: min(1120px, 96vw);
  max-height: 92vh;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}
.lightbox-image {
  display: block;
  width: 100%;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 18px;
  background: var(--bg2);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 30px 80px rgba(0,0,0,0.45);
}
.lightbox-caption {
  color: rgba(221,228,240,0.82);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
}
.lightbox-close {
  position: fixed;
  top: clamp(0.8rem, 3vw, 1.4rem);
  right: clamp(0.8rem, 3vw, 1.4rem);
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 999px;
  background: rgba(16,24,40,0.86);
  color: #fff;
  font-family: var(--font-d);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 14px 34px rgba(0,0,0,0.3);
}
.lightbox-close:hover,
.lightbox-close:focus-visible {
  border-color: rgba(0,191,166,0.55);
  outline: none;
}
.lightbox-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 999px;
  background: rgba(16,24,40,0.86);
  color: #fff;
  font-family: var(--font-d);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 14px 34px rgba(0,0,0,0.3);
  padding: 0;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.lightbox-nav:hover,
.lightbox-nav:focus-visible {
  background: rgba(0,191,166,0.85);
  border-color: rgba(0,191,166,0.85);
  outline: none;
}
.lightbox-nav--prev { left: clamp(0.8rem, 3vw, 1.6rem); }
.lightbox-nav--next { right: clamp(0.8rem, 3vw, 1.6rem); }
.lightbox-nav[hidden] { display: none; }
@media (max-width: 520px) {
  .lightbox-nav { width: 42px; height: 42px; font-size: 22px; }
}
body.lightbox-open { overflow: hidden; }

/* ── IMAGE PLACEHOLDER ── */
.mask-img-placeholder {
  width: 100%; height: 100%; min-height: 260px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 0.75rem;
  background: var(--surface2);
  border-right: 1px solid var(--border);
}
.mip-icon {
  width: 50px; height: 50px; border-radius: 50%;
  border: 2px dashed rgba(0,191,166,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; opacity: 0.6;
}
.mip-label {
  font-size: 10.5px; color: var(--muted); text-align: center;
  font-family: var(--mono); letter-spacing: 0.04em; line-height: 1.6;
  padding: 0 1.2rem;
}
.mip-id {
  font-family: var(--mono); font-size: 9px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(0,191,166,0.4);
}

/* ── RESPONSIVE ── */
@media (max-width: 820px) {
  .cover { padding: 1.2rem 1rem 1.55rem; }
  .cover-shell { padding: 0; gap: 1rem; }
  .cover-topbar { align-items: center; gap: 0.8rem; margin-bottom: 1.5rem; }
  .cover-brand { align-items: center; gap: 0.7rem; }
  .cover-brand-logo { width: min(56vw, 250px); max-height: none; }
  .cover-meta { gap: 0; }
  .cover-brand-name { font-size: 0.82rem; letter-spacing: 0.08em; }
  .cover-brand-url { font-size: 1rem; letter-spacing: 0; line-height: 1.4; }
  .cover-eyebrow { max-width: min(100%, 320px); font-size: 0.85rem; line-height: 1.3; }
  .cover-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .cover-panel { padding: 1.1rem; border-radius: 22px; }
  .cover-panel h2 { font-size: 1.2rem; }
  .cover-panel-body { font-size: 0.95rem; }
  .cover-stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.6rem; }
  .cover-stat { padding: 0.75rem; border-radius: 16px; }
  .cover-stat strong { font-size: 0.95rem; }
  .cover h1 { font-size: clamp(1.95rem, 10vw, 3.2rem); max-width: 10ch; }
  .cover-sub { font-size: 1rem; margin-bottom: 0; }
  .cover-pills { gap: 0.5rem; }
  .cover-pill { font-size: 0.82rem; padding: 0.5rem 0.82rem; }
  .main { padding: 1.2rem 0.85rem 3.5rem; }
  .anatomy-nav { padding: 0.55rem 0.75rem; gap: 0.42rem; }
  .anav-btn { font-size: 8.8px; padding: 0.5rem 0.72rem; }
  .zone-header { gap: 0.85rem; margin-bottom: 1.2rem; padding-bottom: 1.2rem; }
  .zone-badge { width: 44px; height: 44px; font-size: 1.35rem; }
  .zone-title-block { text-align: center; }
  .zone-title-block h2 { font-size: 1.35rem; text-align: center; }
  .zone-title-block p { margin-left: auto; margin-right: auto; }
  .zone-stats { justify-content: center; }
  .zone-stats { display: grid; grid-template-columns: 1fr; gap: 0.5rem; }
  .mask-card { grid-template-columns: 1fr; }
  .mask-img {
    height: auto;
    max-height: none;
    aspect-ratio: 4 / 3;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .mask-img::after { opacity: 1; transform: none; font-size: 8px; }
  .mask-img-caption { font-size: 8.5px; padding: 18px 9px 6px; }
  .mask-body { padding: 1rem; }
  .mask-top { flex-direction: column; gap: 0.5rem; }
  .mask-name { font-size: 1.02rem; }
  .mask-badge { align-self: flex-start; }
  .mask-img-placeholder { min-height: 220px; border-right: none; border-bottom: 1px solid var(--border); }
  .specs-row { grid-template-columns: 1fr 1fr; }
  .print-box, .refs-box { padding: 0.85rem; }
  .diag-details svg { max-height: 180px; }
}

@media (max-width: 520px) {
  body { font-size: 14px; }
  .cover h1 { font-size: clamp(1.85rem, 11vw, 2.45rem); }
  .cover-sub { line-height: 1.6; }
  .cover-stat-grid { grid-template-columns: 1fr; }
  .cover-panel h2 { font-size: 1.1rem; }
  .specs-row { grid-template-columns: 1fr; }
  .mat-tags { display: grid; grid-template-columns: 1fr; }
  .lightbox-image { max-height: 72vh; border-radius: 14px; }
  .lightbox-close { width: 40px; height: 40px; font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .zone-section.active { animation: none; }
  .mask-card,
  .mask-img-trigger img,
  .anav-btn,
  .image-lightbox {
    transition: none;
  }
  .mask-card:hover,
  .anav-btn:hover,
  .mask-card:hover .mask-img-trigger img {
    transform: none;
  }
}

/* ── SHOWCASE COVERFLOW ── */
.showcase {
  position: relative;
  background:
    radial-gradient(60% 75% at 12% 18%, rgba(255,187,0,0.10), transparent 58%),
    radial-gradient(62% 74% at 88% 78%, rgba(0,191,166,0.20), transparent 56%),
    linear-gradient(135deg, rgba(10,14,40,0.96) 0%, rgba(28,33,92,0.90) 56%, rgba(0,191,166,0.42) 100%);
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1rem, 4vw, 2rem) clamp(2.5rem, 6vw, 4rem);
  overflow: hidden;
  border-bottom: 1px solid var(--border2);
}
.showcase::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 18%, #000 82%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 18%, #000 82%, transparent);
  pointer-events: none;
  opacity: 0.42;
}
.showcase-shell {
  position: relative;
  z-index: 1;
  width: min(100%, 1400px);
  margin: 0 auto;
  text-align: center;
}
.showcase-eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 0.34rem 0.85rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.14);
  color: #eff2ff;
  font-family: var(--font-d);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}
.showcase-title {
  font-family: var(--font-d);
  color: #fff;
  font-size: clamp(1.45rem, 3.4vw, 2.25rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}
.showcase-title span { color: var(--accent); }
.showcase-sub {
  color: rgba(232,238,255,0.78);
  font-size: clamp(0.92rem, 2vw, 1.05rem);
  max-width: 60ch;
  margin: 0 auto clamp(2rem, 4.5vw, 3rem);
  line-height: 1.55;
}
.showcase-stage {
  position: relative;
  height: clamp(280px, 42vw, 460px);
  perspective: 1400px;
  margin: 0 auto;
}
.showcase-track {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transform-style: preserve-3d;
}
.showcase-item {
  position: absolute;
  top: 50%;
  left: 50%;
  width: clamp(220px, 28vw, 360px);
  aspect-ratio: 4 / 3;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 22px;
  overflow: hidden;
  background: rgba(10,14,40,0.4);
  cursor: pointer;
  transition: transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1),
              opacity 0.6s ease,
              filter 0.6s ease,
              box-shadow 0.6s ease,
              z-index 0s linear 0s;
}
.showcase-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.showcase-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}
/* Far positions (off-stage, hidden) */
.showcase-item[data-pos="far-left"]  { transform: translate(-50%, -50%) translateX(-180%) scale(0.4) rotateY(45deg); opacity: 0; pointer-events: none; }
.showcase-item[data-pos="far-right"] { transform: translate(-50%, -50%) translateX(180%)  scale(0.4) rotateY(-45deg); opacity: 0; pointer-events: none; }
/* Side positions */
.showcase-item[data-pos="left"] {
  transform: translate(-50%, -50%) translateX(-72%) scale(0.7) rotateY(28deg);
  opacity: 0.55;
  filter: brightness(0.7) saturate(0.85);
  z-index: 1;
}
.showcase-item[data-pos="right"] {
  transform: translate(-50%, -50%) translateX(72%) scale(0.7) rotateY(-28deg);
  opacity: 0.55;
  filter: brightness(0.7) saturate(0.85);
  z-index: 1;
}
/* Center position — 30% larger */
.showcase-item[data-pos="center"] {
  transform: translate(-50%, -50%) translateX(0) scale(1.0) rotateY(0deg);
  opacity: 1;
  filter: none;
  z-index: 3;
  box-shadow:
    0 30px 80px rgba(0,0,0,0.55),
    0 0 0 1px rgba(0,191,166,0.32),
    0 0 80px rgba(0,191,166,0.25);
}
.showcase-item:not([data-pos="center"]):hover {
  opacity: 0.85;
  filter: brightness(0.9);
}
.showcase-item-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 18px 14px 12px;
  background: linear-gradient(transparent, rgba(6,10,18,0.92));
  color: #fff;
  font-family: var(--font-d);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-align: left;
  pointer-events: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.showcase-item[data-pos="center"] .showcase-item-label {
  opacity: 1;
  transform: none;
}
.showcase-item-label small {
  display: block;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 2px;
}
/* Dots */
.showcase-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: clamp(1.4rem, 3vw, 2rem);
}
.showcase-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.45);
  background: rgba(255,255,255,0.08);
  padding: 0;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s, border-color 0.2s;
}
.showcase-dot.is-active {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.25);
}
.showcase-dot:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
@media (max-width: 720px) {
  .showcase-stage { height: clamp(240px, 64vw, 340px); }
  .showcase-item { width: clamp(190px, 60vw, 280px); border-radius: 16px; }
  .showcase-item[data-pos="left"]  { transform: translate(-50%, -50%) translateX(-66%) scale(0.58) rotateY(28deg); opacity: 0.4; }
  .showcase-item[data-pos="right"] { transform: translate(-50%, -50%) translateX(66%)  scale(0.58) rotateY(-28deg); opacity: 0.4; }
  .showcase-item-label { font-size: 0.7rem; padding: 14px 12px 10px; }
  .showcase-item-label small { font-size: 0.58rem; }
}
@media (prefers-reduced-motion: reduce) {
  .showcase-item { transition: none; }
}

/* === Sub-project #4 catalog audit: press feedback & touch-hover gating === */
.anav-btn:active,
.showcase-dot:active,
.mask-img-dot:active,
.mask-img-trigger:active,
.doc-card:active,
.lightbox-close:active,
.lightbox-nav:active { transform: scale(0.97); }
.mask-img-arrow:active { transform: translateY(-50%) scale(0.97); }
@media (hover: none) and (pointer: coarse) {
  .anav-btn:hover,
  .doc-card:hover,
  .showcase-item:not([data-pos="center"]):hover { transform: none; }
  .mask-card:hover .mask-img-trigger img { transform: none; }
}