/* Blanc Y2K, cybersigil : sigil central, carnets en annotations */

@font-face {
  font-family: "Unbounded";
  font-style: normal;
  font-weight: 200 400;
  font-display: swap;
  src: url("fonts/unbounded-latin.woff2") format("woff2");
}

:root {
  color-scheme: light;

  --white: #fbfbfd;
  --ink: #101117;
  --muted: #6d7180;
  --silver: #b9bec9;
  --line: #dcdfe7;
  --sky: #d6e6ff;
  --lilac: #eadcff;
  --blush: #ffe1ee;
  --glow: #8fb0ff;

  --display: "Unbounded", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --lead: clamp(2.5rem, 7vw, 8rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  position: relative;
  margin: 0;
  min-height: 100svh;
  overflow-x: hidden;
  background-color: var(--white);
  background-image: radial-gradient(rgba(16, 17, 23, 0.06) 1px, transparent 1px);
  background-size: 22px 22px;
  color: var(--ink);
  font-family: "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
}

/* ---------- Aura ---------- */

.aura {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.aura span {
  position: absolute;
  width: 55vmax;
  height: 55vmax;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.7;
  animation: drift 24s ease-in-out infinite alternate;
}

.aura span:nth-child(1) { background: var(--sky);   top: -20vmax; left: -15vmax; }
.aura span:nth-child(2) { background: var(--lilac); top: 20vh;    right: -25vmax; animation-duration: 30s; animation-delay: -8s; }
.aura span:nth-child(3) { background: var(--blush); bottom: -30vmax; left: 20vw;  animation-duration: 36s; animation-delay: -16s; }

@keyframes drift {
  to { transform: translate(6vmax, 4vmax) scale(1.12); }
}

/* ---------- Cadre ---------- */

.hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.defs {
  position: absolute;
}

.corner {
  position: absolute;
  width: 64px;
  height: 64px;
  fill: var(--ink);
  opacity: 0;
  animation: appear 1.2s var(--ease) 0.2s forwards;
}

.corner.tl { top: 14px;    left: 14px; }
.corner.tr { top: 14px;    right: 14px;  transform: scaleX(-1); }
.corner.bl { bottom: 14px; left: 14px;   transform: scaleY(-1); }
.corner.br { bottom: 14px; right: 14px;  transform: scale(-1); }

.hud-label {
  position: absolute;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0;
  animation: appear 1.2s var(--ease) 0.5s forwards;
}

.hud-label.tl { top: 22px;    left: 92px; }
.hud-label.tr { top: 22px;    right: 92px; }

@keyframes appear {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ---------- Avant le clic : seul le sigil est visible ---------- */

body:not(.is-open) .hud,
body:not(.is-open) .carnets,
body:not(.is-open) .twinkle {
  display: none;
}

/* ---------- Scène ---------- */

.stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  grid-template-rows: 1fr auto auto auto 1fr;
  row-gap: 3.5rem;
  min-height: 100svh;
  padding: 5rem 2rem;
}

.emblem {
  grid-column: 2;
  grid-row: 1 / -1;
  align-self: center;
  justify-self: center;
  display: grid;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.emblem:focus {
  outline: none;
}

/* Version 3D : le canvas déborde du SVG pour laisser tourner le sigil sans le couper.
   Le SVG reste en place (invisible) pour garder la taille et servir de secours. */
.emblem {
  position: relative;
}

.sigil-3d {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 150%;
  height: 125%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.emblem.has-3d .sigil {
  visibility: hidden;
}

/* ---------- Sigil (version 2D de secours ; la 3D est dans sigil3d.js) ---------- */

.sigil {
  height: clamp(320px, 78svh, 740px);
  width: auto;
  overflow: visible;
  transform: translate(calc(var(--mx, 0) * -22px), calc(var(--my, 0) * -14px));
  transition: transform 0.6s var(--ease), height 1.1s var(--ease);
}

/* Une fois ouvert, le sigil rétrécit pour laisser la place aux carnets */
body.is-open .sigil {
  height: clamp(300px, 60svh, 560px);
}

.sigil-body {
  transform-box: fill-box;
  transform-origin: center;
  animation: breathe 7s ease-in-out infinite;
}

@keyframes breathe {
  50% { transform: scale(1.02); }
}

.core {
  fill: url(#chrome);
  stroke: var(--ink);
  stroke-width: 1.2;
}

.ring {
  fill: none;
  stroke: var(--silver);
  stroke-width: 0.7;
}

.orbit {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: draw 2.6s var(--ease) 0.2s forwards;
}

@keyframes draw {
  to { stroke-dashoffset: 0; }
}

.mini {
  fill: var(--ink);
  opacity: 0;
  animation: appear 0.8s ease forwards;
  animation-delay: calc(1s + var(--t) * 0.12s);
}

.emblem:hover .mini,
.emblem:focus-visible .mini {
  fill: var(--glow);
}

.halo {
  fill: none;
  stroke: var(--glow);
  stroke-width: 2;
  filter: drop-shadow(0 0 4px #bcd3ff) drop-shadow(0 0 10px #d9c8ff);
  animation: float 4.5s ease-in-out infinite;
}

@keyframes float {
  50% { transform: translateY(-6px); }
}

/* ---------- Carnets, annotés autour du sigil ---------- */

.carnets {
  display: contents;
  list-style: none;
}

.entry {
  display: grid;
  gap: 0.3rem;
  opacity: 0;
  animation: rise 1s var(--ease) forwards;
  animation-delay: calc(0.35s + var(--i) * 0.15s);
}

/* Carnet en ligne : toute l'annotation est un lien */
.entry-link {
  display: grid;
  gap: 0.3rem;
  color: inherit;
  text-decoration: none;
}

.entry-link:focus-visible {
  outline: 1px dashed var(--glow);
  outline-offset: 6px;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); filter: blur(4px); }
  to   { opacity: 1; transform: none; filter: none; }
}

.e1 { grid-column: 1; grid-row: 2; }
.e2 { grid-column: 3; grid-row: 3; }
.e3 { grid-column: 1; grid-row: 4; }

.e1,
.e3 {
  justify-self: end;
  text-align: right;
  padding-right: calc(var(--lead) + 1rem);
}

.e2 {
  justify-self: start;
  text-align: left;
  padding-left: calc(var(--lead) + 1rem);
}

.num {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}


.title {
  position: relative;
  font-family: var(--display);
  font-weight: 200;
  font-size: clamp(1.1rem, 1.9vw, 1.6rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: letter-spacing 0.5s var(--ease);
}

/* Trait qui relie le carnet au sigil, terminé par un losange */
.leader {
  position: absolute;
  top: 50%;
  width: var(--lead);
  height: 1px;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.leader::after {
  content: "";
  position: absolute;
  top: -3px;
  width: 7px;
  height: 7px;
  background: var(--ink);
  transform: rotate(45deg);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.e1 .leader,
.e3 .leader {
  right: calc(-1 * (var(--lead) + 1rem));
  background: linear-gradient(90deg, transparent, var(--ink));
}

.e1 .leader::after,
.e3 .leader::after {
  right: -3px;
}

.e2 .leader {
  left: calc(-1 * (var(--lead) + 1rem));
  background: linear-gradient(-90deg, transparent, var(--ink));
}

.e2 .leader::after {
  left: -3px;
}

.entry:hover .title {
  letter-spacing: 0.1em;
}

.entry:hover .leader {
  background: var(--glow);
  box-shadow: 0 0 6px var(--glow);
}

.entry:hover .leader::after {
  background: var(--glow);
  box-shadow: 0 0 8px var(--glow);
}

/* ---------- Étoiles ---------- */

.twinkle,
.spark {
  clip-path: polygon(50% 0, 58% 42%, 100% 50%, 58% 58%, 50% 100%, 42% 58%, 0 50%, 42% 42%);
}

.twinkle {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--s);
  height: var(--s);
  background: var(--ink);
  pointer-events: none;
  animation: twinkle 3.2s ease-in-out infinite;
  animation-delay: var(--d);
}

@keyframes twinkle {
  0%, 100% { opacity: 0.15; transform: scale(0.6) rotate(0deg); }
  50%      { opacity: 1;    transform: scale(1) rotate(45deg); }
}

.spark {
  position: fixed;
  z-index: 10;
  width: 9px;
  height: 9px;
  margin: -4.5px 0 0 -4.5px;
  pointer-events: none;
  background: var(--c);
  animation: spark 0.9s ease-out forwards;
}

@keyframes spark {
  to { opacity: 0; transform: translate(var(--dx), var(--dy)) scale(0.2) rotate(90deg); }
}

/* ---------- Petits écrans : tout en une colonne ---------- */

@media (max-width: 52rem) {
  .stage {
    grid-template-columns: 1fr;
    grid-template-rows: none;
    row-gap: 2rem;
    padding: 5rem 1.5rem 5.5rem;
  }

  .emblem {
    grid-column: 1;
    grid-row: auto;
    margin-bottom: 1.5rem;
  }

  body:not(.is-open) .stage {
    align-content: center;
  }

  .sigil {
    height: min(72svh, 92vw);
  }

  body.is-open .sigil {
    height: min(56svh, 84vw);
  }

  .e1,
  .e2,
  .e3 {
    grid-column: 1;
    grid-row: auto;
    justify-self: stretch;
    text-align: left;
    padding: 0 0 0 2.75rem;
  }

  .e1 .leader,
  .e2 .leader,
  .e3 .leader {
    right: auto;
    left: -2.75rem;
    width: 1.9rem;
    background: linear-gradient(90deg, var(--ink), transparent);
  }

  .e1 .leader::after,
  .e2 .leader::after,
  .e3 .leader::after {
    right: auto;
    left: -3px;
  }

  .corner {
    width: 40px;
    height: 40px;
  }

  .hud-label.tl,
  .hud-label.tr {
    top: 18px;
  }

  .hud-label.tl {
    left: 62px;
  }

  .hud-label.tr {
    right: 62px;
  }
}

/* ---------- Mouvement réduit ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0s !important;
    transition: none !important;
  }
}