/* VSM World - layout.css : structure des blocs, grilles et adaptations mobiles */

.tile-field {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.site-head {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease);
}

.site-head.is-stuck {
  background: var(--veil);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--hairline);
}

.site-head__in {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-right: auto;
}

.brand__name {
  font-family: var(--display);
  font-weight: 800;
  font-variation-settings: "opsz" 14;
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav a {
  position: relative;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding-block: 0.35rem;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.head-tools {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-width: 44px;
  height: 34px;
  padding-inline: 0.7rem;
  border: 1px solid var(--hairline);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}

.chip:hover,
.chip:focus-visible {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.chip__part {
  opacity: 0.35;
  transition: opacity 0.3s var(--ease);
}

.chip__part.is-active {
  opacity: 1;
}

.nav-toggle {
  display: none;
  width: 34px;
  height: 34px;
  border: 1px solid var(--hairline);
  position: relative;
}

.nav-toggle span {
  position: absolute;
  left: 50%;
  width: 14px;
  height: 2px;
  background: currentColor;
  transform: translateX(-50%);
  transition: transform 0.4s var(--ease), opacity 0.25s ease;
}

.nav-toggle span:nth-child(1) {
  top: 12px;
}

.nav-toggle span:nth-child(2) {
  top: 18px;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateX(-50%) translateY(3px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  transform: translateX(-50%) translateY(-3px) rotate(-45deg);
}

.hero {
  position: relative;
  padding-block: clamp(2rem, 6vw, 5rem) clamp(3rem, 8vw, 7rem);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  min-height: calc(100svh - 74px);
}

.hero__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: clamp(1.4rem, 3vw, 2.2rem);
}

.hero__title {
  font-size: clamp(2.9rem, 9.2vw, 7.6rem);
  display: flex;
  flex-direction: column;
}

.hero__line {
  display: block;
  overflow: hidden;
}

.hero__line span {
  display: inline-block;
}

.hero__line::after {
  content: "!";
  color: var(--dot);
}

html[lang="fr"] .hero__line::after {
  content: "\00a0!";
}

.hero__line:nth-child(1) {
  --dot: var(--blue);
}

.hero__line:nth-child(2) {
  --dot: var(--red);
}

.hero__line:nth-child(3) {
  --dot: var(--green);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.hero__stage {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: center;
}

.hero__mark {
  width: min(100%, 460px);
}

.seq {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--graphite);
  min-height: 1.2rem;
}

.seq__dot {
  width: 8px;
  height: 8px;
  background: var(--blue);
  clip-path: polygon(0 0, 100% 100%, 0 100%);
  animation: vsm-blink 2.4s steps(1, end) infinite;
}

.seq__name {
  color: var(--ink);
}

.ticker {
  border-block: 1px solid var(--hairline);
  padding-block: 0.9rem;
  overflow: hidden;
  position: relative;
  z-index: 1;
  background: var(--paper);
}

.ticker__track {
  display: flex;
  width: max-content;
  animation: vsm-marquee 38s linear infinite;
}

.ticker:hover .ticker__track {
  animation-play-state: paused;
}

.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 1.6rem;
  padding-inline: 0.8rem;
  color: var(--graphite);
  white-space: nowrap;
}

.ticker__item::after {
  content: "";
  width: 9px;
  height: 9px;
  background: var(--tri, var(--blue));
  clip-path: polygon(0 0, 100% 100%, 0 100%);
}

.ticker__item:nth-child(3n + 2) {
  --tri: var(--red);
}

.ticker__item:nth-child(3n + 3) {
  --tri: var(--green);
}

.topics li:nth-child(2) {
  --tri: var(--red);
}

.topics li:nth-child(3) {
  --tri: var(--green);
}

.section {
  position: relative;
  z-index: 1;
  padding-block: clamp(4.5rem, 11vw, 9rem);
}

.section__head {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  max-width: 60ch;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--hairline);
}

.card {
  padding: clamp(1.75rem, 3vw, 2.5rem) clamp(1.25rem, 2.5vw, 2.25rem) clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--hairline);
  border-right: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: background 0.45s var(--ease);
}

.card:first-child {
  border-left: 1px solid var(--hairline);
}

.card:hover {
  background: color-mix(in srgb, var(--ink) 4%, transparent);
}

.card__index {
  color: var(--graphite);
}

.card__title {
  font-family: var(--display);
  font-weight: 700;
  font-variation-settings: "opsz" 32;
  font-size: 1.6rem;
  letter-spacing: -0.03em;
}

.card__body {
  color: var(--graphite);
  font-size: 0.97rem;
}

.card__visual {
  margin-top: auto;
  padding-top: 1.75rem;
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  min-height: 112px;
}

.module-demo {
  width: 76px;
  height: 76px;
  background: var(--blue);
  clip-path: polygon(0 0, 100% 100%, 0 100%);
  animation: vsm-module 6s var(--ease) infinite;
}

.swatch {
  flex: 1;
  height: 96px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0.55rem;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  color: #fff;
  transition: transform 0.5s var(--ease-snap);
}

.swatch b {
  font-family: var(--display);
  font-weight: 800;
  font-variation-settings: "opsz" 32;
  font-size: 1.7rem;
  line-height: 1;
  letter-spacing: -0.02em;
}

.swatch:hover {
  transform: translateY(-8px);
}

.swatch--blue {
  background: var(--blue);
}

.swatch--red {
  background: var(--red);
}

.swatch--green {
  background: var(--green);
}

.counter {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--display);
  font-weight: 800;
  font-variation-settings: "opsz" 48;
  font-size: 3.2rem;
  line-height: 1;
  letter-spacing: -0.04em;
}

.counter small {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: var(--graphite);
  text-transform: uppercase;
}

.workshop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.workshop__canvas-wrap {
  position: relative;
  border: 1px solid var(--hairline);
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.workshop__canvas-wrap canvas {
  width: 100%;
  height: 100%;
}

.workshop__panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.field__label {
  color: var(--graphite);
}

.segmented {
  display: flex;
  border: 1px solid var(--hairline);
}

.segmented button {
  flex: 1;
  padding: 0.7rem 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  border-right: 1px solid var(--hairline);
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.segmented button:last-child {
  border-right: 0;
}

.segmented button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}

.seed {
  font-family: var(--mono);
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 0.6rem;
}

.workshop__actions {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.workshop__actions .btn {
  justify-content: space-between;
}

.channel {
  border: 1.5px solid var(--ink);
  padding: clamp(1.75rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.channel__copy {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  align-items: flex-start;
}

.topics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.topics li {
  background: var(--paper);
  padding: 1.15rem 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background 0.35s var(--ease), color 0.35s var(--ease);
}

.topics li::before {
  content: "";
  width: 9px;
  height: 9px;
  background: var(--tri, var(--blue));
  clip-path: polygon(0 0, 100% 100%, 0 100%);
  transition: transform 0.45s var(--ease-snap);
}

.topics li:hover {
  background: var(--ink);
  color: var(--paper);
}

.topics li:hover::before {
  transform: rotate(180deg) scale(1.3);
}

.site-foot {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--hairline);
  padding-block: clamp(2.5rem, 6vw, 4rem);
}

.foot__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 0.8fr)) auto;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.foot__brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.foot__col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.foot__col a {
  color: var(--graphite);
  transition: color 0.3s var(--ease);
}

.foot__col a:hover {
  color: var(--ink);
}

.yt {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.85rem 1.2rem;
  border: 1.5px solid var(--hairline);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), color 0.4s var(--ease);
}

.yt svg {
  width: 30px;
  height: auto;
  transition: transform 0.45s var(--ease-snap);
}

.yt:hover,
.yt:focus-visible {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

.yt:hover svg,
.yt:focus-visible svg {
  transform: scale(1.12);
}

.yt__label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.foot__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--hairline);
  color: var(--graphite);
}

@media (max-width: 1080px) {
  .foot__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .hero__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
    min-height: 0;
  }

  .hero__stage {
    order: -1;
  }

  .hero__mark {
    width: min(72vw, 340px);
  }

  .cards {
    grid-template-columns: minmax(0, 1fr);
  }

  .card {
    border-left: 1px solid var(--hairline);
  }

  .workshop__grid,
  .channel {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 74px 0 auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 1rem var(--gutter) 2rem;
    background: var(--paper);
    border-bottom: 1px solid var(--hairline);
    clip-path: inset(0 0 100% 0);
    transition: clip-path 0.5s var(--ease);
  }

  .site-nav.is-open {
    clip-path: inset(0 0 0 0);
  }

  .site-nav a {
    width: 100%;
    padding-block: 1.1rem;
    border-bottom: 1px solid var(--hairline);
    font-size: 0.82rem;
  }

  .topics {
    grid-template-columns: minmax(0, 1fr);
  }

  .foot__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .seed {
    font-size: 1.2rem;
  }
}