@font-face {
  font-family: "Afacad";
  src: url("assets/fonts/Afacad-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Afacad";
  src: url("assets/fonts/Afacad-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Afacad";
  src: url("assets/fonts/Afacad-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --red: #b61613;
  --graphite: #202124;
  --warm: #f5f3ef;
  --paper: #fbfaf7;
  --muted: #696965;
  --white: #fff;
  --line: rgba(32, 33, 36, .12);
  --line-strong: rgba(32, 33, 36, .22);
  --soft-red: rgba(182, 22, 19, .08);
  --shadow-folder: 0 22px 56px rgba(32, 33, 36, .18), 0 4px 0 rgba(32, 33, 36, .05);
  --shadow-lift: 0 34px 86px rgba(32, 33, 36, .24), 0 0 0 1px rgba(182, 22, 19, .12);
  --font: "Afacad", Arial, sans-serif;
  --pad: clamp(1rem, 5vw, 5.375rem);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --page-max: 100rem;
  --section-gap: clamp(1.4rem, 4.5vw, 4.5rem);
  --card-w: clamp(17.5rem, 86vw, 22.5rem);
}

* { box-sizing: border-box; }
html { margin: 0; width: 100%; min-height: 100%; background: var(--warm); color: var(--graphite); }
body {
  margin: 0;
  min-width: 320px;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  font-family: var(--font);
  text-rendering: optimizeLegibility;
  background: var(--warm);
}
button, a { font: inherit; }
button { border: 0; }
img { display: block; max-width: 100%; height: auto; }
:focus-visible { outline: 3px solid var(--red); outline-offset: 5px; }

.skip-link {
  position: fixed;
  z-index: 200;
  top: calc(12px + var(--safe-top));
  left: calc(12px + var(--safe-left));
  transform: translateY(-160%);
  padding: 10px 14px;
  color: var(--white);
  background: var(--graphite);
}
.skip-link:focus { transform: translateY(0); }

.archive-shell {
  width: 100%;
  min-height: 100svh;
  background: var(--warm);
}
.archive-screen {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  row-gap: var(--section-gap);
  width: min(100%, var(--page-max));
  min-height: 100svh;
  margin-inline: auto;
  padding: calc(1rem + var(--safe-top)) calc(var(--pad) + var(--safe-right)) calc(1.2rem + var(--safe-bottom)) calc(var(--pad) + var(--safe-left));
  overflow-x: clip;
  background: var(--warm);
}
.archive-grid {
  position: fixed;
  z-index: -3;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: clamp(58px, 5vw, 92px) clamp(58px, 5vw, 92px);
  mask-image: linear-gradient(to bottom, transparent 0, #000 11%, #000 92%, transparent 100%);
}
.ambient {
  position: fixed;
  z-index: -2;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(80px);
  opacity: .14;
}
.ambient-red { right: 0; top: 0; width: 38vw; height: 38vw; transform: translate(35%, -35%); background: var(--red); }
.ambient-paper { left: 0; bottom: 0; width: 44vw; height: 44vw; transform: translate(-35%, 35%); background: #b9a995; }

.archive-header {
  position: relative;
  z-index: 40;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding-block: .1rem .85rem;
  border-bottom: 2px solid var(--red);
}
.brand-lockup { width: clamp(8.25rem, 38vw, 11.5rem); display: inline-block; }
.archive-meta {
  display: none;
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .24em;
  text-transform: uppercase;
}

.archive-intro {
  position: relative;
  z-index: 6;
  width: min(100%, 34rem);
  transition: opacity 520ms cubic-bezier(.16, 1, .3, 1);
}
.kicker {
  margin: 0 0 clamp(.9rem, 3vw, 1.5rem);
  color: var(--red);
  font-size: clamp(.6rem, 2.9vw, .75rem);
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
}
h1 {
  margin: 0;
  color: var(--graphite);
  font-size: clamp(3rem, 14vw, 8rem);
  line-height: .88;
  letter-spacing: -.06em;
  font-weight: 600;
  text-transform: none;
  overflow-wrap: normal;
}
h1 span { color: var(--red); }
.intro-copy {
  max-width: 31rem;
  margin: clamp(1rem, 4vw, 1.75rem) 0 0;
  color: var(--muted);
  font-size: clamp(.95rem, 3.9vw, 1.25rem);
  line-height: 1.55;
}

.folder-stage {
  position: relative;
  z-index: 14;
  width: 100%;
  min-width: 0;
  touch-action: pan-y;
}
.folder-origin {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1rem, 4vw, 1.4rem);
  width: 100%;
  max-width: 46rem;
  min-height: clamp(15rem, 58vw, 20rem);
  margin-inline: auto;
  padding-block: 2rem .5rem;
  outline: none;
}
.folder-card {
  position: relative;
  grid-area: 1 / 1;
  justify-self: center;
  width: min(100%, var(--card-w));
  min-height: clamp(10.25rem, 47vw, 14rem);
  transform-origin: 50% 82%;
  color: var(--graphite);
  border: 1px solid rgba(32, 33, 36, .16);
  border-radius: 7px;
  background: var(--paper);
  box-shadow: var(--shadow-folder);
  user-select: none;
  transition: transform 420ms cubic-bezier(.16, 1, .3, 1), box-shadow 260ms ease, filter 260ms ease, border-color 260ms ease, opacity 260ms ease;
}
.folder-card:nth-child(1) { transform: translate(-10px, -14px) rotate(-3.1deg) scale(.985); z-index: 4; }
.folder-card:nth-child(2) { transform: translate(-2px, -3px) rotate(-.7deg) scale(.992); z-index: 3; }
.folder-card:nth-child(3) { transform: translate(7px, 9px) rotate(1.9deg) scale(.998); z-index: 2; }
.folder-card:nth-child(4) { transform: translate(16px, 22px) rotate(4deg); z-index: 1; }
.archive-screen.is-open .folder-origin {
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding-block: .5rem 0;
}
.archive-screen.is-open .folder-card {
  grid-area: auto;
  justify-self: auto;
  width: min(100%, var(--card-w));
}
.archive-screen.is-open .folder-card:nth-child(odd) { align-self: flex-start; transform: translateX(0) rotate(-1.8deg); }
.archive-screen.is-open .folder-card:nth-child(even) { align-self: flex-end; transform: translateX(0) rotate(1.4deg); }
.folder-card[aria-disabled="true"] { cursor: not-allowed; }
.folder-card.is-clickable { cursor: pointer; }
.folder-card.is-clickable:hover,
.folder-card.is-active { border-color: rgba(182,22,19,.35); filter: brightness(1.012); box-shadow: var(--shadow-lift); }
.folder-tab {
  position: absolute;
  left: -1px;
  top: -22px;
  width: 42%;
  height: 23px;
  border: 1px solid rgba(32, 33, 36, .16);
  border-bottom: 0;
  border-radius: 7px 10px 0 0;
  background: var(--paper);
}
.folder-tab::after {
  content: "";
  position: absolute;
  right: -18px;
  bottom: 0;
  width: 18px;
  height: 18px;
  background: linear-gradient(135deg, var(--paper) 0 49%, transparent 51%);
}
.folder-ridge {
  position: absolute;
  inset: 0;
  border-top: 7px solid var(--red);
  border-radius: inherit;
  pointer-events: none;
}
.folder-number {
  position: absolute;
  top: 18px;
  left: 20px;
  color: var(--red);
  font-size: clamp(.7rem, 3vw, .875rem);
  font-weight: 700;
  letter-spacing: .18em;
}
.folder-mark {
  position: absolute;
  top: 17px;
  right: 18px;
  width: clamp(2.1rem, 9vw, 2.625rem);
  height: 1.75rem;
  background: url("assets/brand/08_SAMGHN_simbolo.svg") center / contain no-repeat;
  opacity: .12;
}
.folder-body { display: block; padding: clamp(3.8rem, 15vw, 4.75rem) clamp(1.15rem, 5vw, 1.56rem) clamp(1.15rem, 5vw, 1.56rem); }
.folder-series { color: var(--muted); font-size: .75rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.folder-body h2 { margin: .3rem 0 0; font-size: clamp(1.65rem, 7vw, 2.625rem); line-height: .98; letter-spacing: -.035em; font-weight: 600; }
.folder-body p { margin: .6rem 0 0; color: var(--muted); font-size: clamp(.82rem, 3.4vw, .94rem); line-height: 1.35; }
.folder-arrow {
  display: inline-flex;
  margin-top: .85rem;
  color: var(--red);
  font-size: 1.35rem;
  line-height: 1;
}

.archive-footer {
  position: relative;
  z-index: 20;
  color: var(--muted);
  font-size: clamp(.5rem, 2.4vw, .625rem);
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding-block: .2rem .4rem;
}
.archive-screen.has-detail .archive-intro,
.archive-screen.has-detail .folder-stage,
.archive-screen.has-detail .archive-footer { display: none; }
.status-line { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: clamp(.55rem, 3vw, 1.1rem); margin-bottom: .8rem; }
.progress-track { position: relative; height: 1px; background: var(--line-strong); }
.progress-fill { position: absolute; left: 0; top: -1px; width: 100%; height: 3px; background: var(--red); transform: scaleX(0); transform-origin: left center; }
.progress-knob { position: absolute; top: 50%; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--red); transform: translate(-50%, -50%); }
.footer-row { display: flex; align-items: center; justify-content: flex-end; gap: 20px; }
.interaction-hint { display: none; }
.footer-row strong { color: var(--graphite); font-weight: 700; }

.detail-panel {
  position: relative;
  z-index: 30;
  display: none;
  min-width: 0;
  overflow: hidden;
  opacity: 0;
  transition: opacity 380ms ease;
}
.detail-panel.is-visible {
  display: block;
  opacity: 1;
}
.detail-scrim { display: none; }
.detail-symbol {
  position: absolute;
  z-index: -1;
  right: 0;
  top: 5rem;
  width: min(74vw, 32rem);
  aspect-ratio: 1030 / 670;
  background: url("assets/brand/08_SAMGHN_simbolo.svg") center / contain no-repeat;
  opacity: .045;
  pointer-events: none;
}
.detail-card {
  position: relative;
  z-index: 2;
  width: 100%;
  margin-block: 0 1rem;
  padding: clamp(1.25rem, 5vw, 3.5rem);
  color: var(--graphite);
  background: rgba(251, 250, 247, .9);
  border: 1px solid rgba(32,33,36,.14);
  border-top: 7px solid var(--red);
  border-radius: 10px;
  box-shadow: 0 30px 90px rgba(32,33,36,.16);
}
.detail-back {
  position: sticky;
  z-index: 3;
  top: calc(.75rem + var(--safe-top));
  float: right;
  margin: -.35rem 0 1rem 1rem;
  padding: .6rem .1rem;
  color: var(--muted);
  background: rgba(251,250,247,.86);
  backdrop-filter: blur(4px);
  font-size: clamp(.65rem, 2.6vw, .75rem);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  cursor: pointer;
}
.detail-back:hover { color: var(--red); }
.detail-card h2 { clear: both; margin: 0; font-size: clamp(3.4rem, 17vw, 9.375rem); line-height: .84; letter-spacing: -.065em; font-weight: 600; }
.detail-copy { max-width: 44rem; margin: clamp(1rem, 3vw, 1.5rem) 0 0; color: var(--muted); font-size: clamp(1rem, 4vw, 1.5rem); line-height: 1.5; }
.detail-items { margin-top: clamp(1.75rem, 5vw, 2.75rem); display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); border-top: 1px solid var(--line-strong); }
.detail-item { min-height: 6rem; padding: 1rem 1rem 1rem 0; border-bottom: 1px solid var(--line-strong); color: var(--graphite); }
.detail-item small { display: block; color: var(--red); font-size: .75rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.detail-item strong { display: block; margin-top: .5rem; font-size: 1.25rem; line-height: 1.08; font-weight: 600; }
.detail-item p { margin: .5rem 0 0; color: var(--muted); font-size: .875rem; line-height: 1.35; }

@media (min-width: 36rem) {
  .archive-meta { display: block; }
  .footer-row { justify-content: space-between; }
  .interaction-hint { display: inline; }
}

@media (min-width: 44rem) {
  :root { --card-w: clamp(18rem, 42vw, 22.5rem); }
  .folder-origin { max-width: 48rem; }
  .archive-screen.is-open .folder-origin {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: clamp(1.25rem, 3vw, 2rem);
  }
  .archive-screen.is-open .folder-card { width: min(100%, 22.5rem); }
  .archive-screen.is-open .folder-card:nth-child(odd),
  .archive-screen.is-open .folder-card:nth-child(even) { align-self: auto; justify-self: center; }
  .archive-screen.is-open .folder-card:nth-child(1) { transform: translateY(1.5rem) rotate(-3deg); }
  .archive-screen.is-open .folder-card:nth-child(2) { transform: translateY(-.4rem) rotate(.8deg); }
  .archive-screen.is-open .folder-card:nth-child(3) { transform: translateY(.2rem) rotate(1.2deg); }
  .archive-screen.is-open .folder-card:nth-child(4) { transform: translateY(-1rem) rotate(3deg); }
}

@media (min-width: 60rem) {
  .archive-screen {
    grid-template-columns: minmax(20rem, 41%) minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr) auto;
    column-gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
  }
  .archive-header { grid-column: 1 / -1; align-self: start; }
  .archive-intro { grid-column: 1; grid-row: 2; align-self: center; }
  .folder-stage { grid-column: 2; grid-row: 2; align-self: center; }
  .archive-footer { grid-column: 1 / -1; grid-row: 3; align-self: end; }
  .detail-panel { grid-column: 1 / -1; grid-row: 2 / 4; }
  .archive-screen.has-detail .archive-intro,
  .archive-screen.has-detail .folder-stage { display: none; }
  .folder-origin { max-width: min(100%, 56rem); min-height: clamp(30rem, 53vh, 38rem); padding: clamp(2rem, 4vw, 3rem); }
  .archive-screen.is-open .folder-origin { display: block; min-height: clamp(30rem, 53vh, 38rem); }
  .archive-screen.is-open .folder-card { position: absolute; width: clamp(18rem, 22vw, 22.5rem); }
  .archive-screen.is-open .folder-card:nth-child(1) { left: 2%; top: 54%; transform: translateY(-50%) rotate(-4.2deg); }
  .archive-screen.is-open .folder-card:nth-child(2) { left: 27%; top: 21%; transform: rotate(.6deg); }
  .archive-screen.is-open .folder-card:nth-child(3) { right: 18%; top: 60%; transform: translateY(-15%) rotate(1.2deg); }
  .archive-screen.is-open .folder-card:nth-child(4) { right: 0; top: 31%; transform: rotate(3.6deg); }
}

@media (min-width: 80rem) {
  .archive-screen {
    grid-template-columns: minmax(25rem, 40%) minmax(0, 1fr);
  }
  .archive-screen.is-open .folder-card:nth-child(1) { left: 1%; top: 56%; }
  .archive-screen.is-open .folder-card:nth-child(2) { left: 24%; top: 18%; }
  .archive-screen.is-open .folder-card:nth-child(3) { right: 18%; top: 63%; }
  .archive-screen.is-open .folder-card:nth-child(4) { right: 1%; top: 32%; }
}

@media (min-width: 105rem) {
  :root { --page-max: 105rem; }
  .archive-screen.is-open .folder-card { width: 22.5rem; }
}

@media (max-width: 24rem) {
  :root { --pad: 1rem; --card-w: min(17rem, calc(100vw - 3rem)); }
  .archive-screen { row-gap: 1.2rem; }
  .folder-card:nth-child(1) { transform: translate(-6px, -12px) rotate(-2.2deg) scale(.985); }
  .folder-card:nth-child(2) { transform: translate(-1px, -3px) rotate(-.5deg) scale(.992); }
  .folder-card:nth-child(3) { transform: translate(4px, 7px) rotate(1.3deg) scale(.998); }
  .folder-card:nth-child(4) { transform: translate(7px, 17px) rotate(2.4deg); }
  h1 { font-size: clamp(2.85rem, 13.5vw, 3.3rem); }
  .intro-copy { font-size: .92rem; }
  .folder-card { min-height: 10rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}