:root {
  --bg: #05070d;
  --bg-warmth: 0;
  --bg-warm: #100c08;
  --text: #e8edf7;
  --muted: #92a0ba;
  --accent: #7f9dff;
  --tag: var(--accent);
  --card-bg: rgba(9, 13, 24, 0.65);
  --card-border: rgba(147, 170, 219, 0.25);
  /* Espace réservé au menu vertical fixe (desktop) */
  --side-nav-gutter: clamp(100px, 12vw, 160px);
  /* Échelle solaire fixe à gauche (labels + rail) */
  --solar-scale-gutter: clamp(72px, 11vw, 108px);
  /* Marqueur échelle : une teinte par section (planète d’ancre) */
  --scale-marker-0: #3060b0;
  --scale-marker-1: #d4b878;
  --scale-marker-2: #c87848;
  --scale-marker-3: #60c8b8;
  --scale-marker-4: #c86048;
  --scale-marker-5: #e8d8a8;
  --scale-marker-6: #48a878;
  --scale-marker-7: #a0a098;
  /* Menu latéral : verre + ombres texte (lisibilité sur fond 3D variable) */
  --nav-glass-bg: rgba(5, 8, 18, 0.75);
  --nav-glass-border: rgba(255, 255, 255, 0.12);
  --nav-glass-shadow: -6px 0 28px rgba(0, 0, 0, 0.38);
  --nav-link-shadow: 0 1px 3px rgba(0, 0, 0, 0.85);
  --nav-link-stroke: 0;
  /* Composition panels (desktop / laptop) */
  --panel-content-max: min(520px, 100%);
  --panel-section-gap: clamp(0.75rem, 2vh, 1.25rem);
  --panel-lead-gap: clamp(0.35rem, 1vh, 0.65rem);
  --panel-block-gap: clamp(1rem, 2.5vh, 1.5rem);
}

/* Thèmes typographiques par panel (contraste localisé) */
.panel.theme-dark {
  --panel-text: #e8edf7;
  --panel-muted: #92a0ba;
  --panel-tag: #7f9dff;
  --panel-link: #fff;
  --panel-link-underline: rgba(255, 255, 255, 0.42);
  --panel-card-bg: rgba(9, 13, 24, 0.65);
  --panel-card-border: rgba(147, 170, 219, 0.25);
}

.panel.theme-mid {
  --panel-text: #eef2fb;
  --panel-muted: #a8b4cc;
  --panel-tag: #8aa8ff;
  --panel-link: #fff;
  --panel-link-underline: rgba(255, 255, 255, 0.42);
  --panel-card-bg: rgba(9, 13, 24, 0.72);
  --panel-card-border: rgba(147, 170, 219, 0.35);
}

.panel.theme-light {
  --panel-text: #0a0e18;
  --panel-muted: #1a2030;
  --panel-tag: #2a4a7a;
  --panel-link: #0a0e18;
  --panel-link-underline: rgba(10, 14, 24, 0.35);
  --panel-card-bg: rgba(255, 255, 255, 0.84);
  --panel-card-border: rgba(10, 14, 24, 0.14);
}

.panel.theme-light .tag,
.panel.theme-light h1,
.panel.theme-light h2,
.panel.theme-light p {
  text-shadow:
    0 0 18px rgba(255, 255, 255, 0.85),
    0 1px 3px rgba(255, 255, 255, 0.7),
    0 2px 10px rgba(10, 14, 24, 0.12);
}

.panel.theme-mercury {
  --panel-text: #e4e0d8;
  --panel-muted: #a8a498;
  --panel-tag: #c8b898;
  --panel-link: #fff;
  --panel-link-underline: rgba(255, 255, 255, 0.42);
  --panel-card-bg: rgba(18, 16, 14, 0.78);
  --panel-card-border: rgba(200, 184, 152, 0.22);
}

.panel.theme-mercury .tag,
.panel.theme-mercury h1,
.panel.theme-mercury h2,
.panel.theme-mercury p {
  text-shadow: 0 2px 16px rgba(5, 8, 18, 0.65);
}

.panel.theme-mercury .panel-copy {
  background: rgba(18, 16, 14, 0.72);
  backdrop-filter: blur(6px);
}

.panel.theme-mid .tag,
.panel.theme-mid h1,
.panel.theme-mid h2,
.panel.theme-mid p {
  text-shadow: 0 2px 18px rgba(5, 8, 18, 0.72);
}

.panel-copy {
  width: 100%;
  max-width: var(--panel-content-max);
  padding: 1.1rem 1.35rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(6px);
}

.panel.theme-dark .panel-copy {
  padding: 0;
  background: transparent;
  backdrop-filter: none;
}

.panel-lead {
  display: flex;
  flex-direction: column;
  gap: var(--panel-lead-gap);
  width: 100%;
  max-width: var(--panel-content-max);
}

.panel-lead .tag {
  margin-bottom: 0;
}

.panel-lead h1,
.panel-lead h2 {
  margin-bottom: 0;
}

.panel-lead p {
  margin-top: 0;
}

.panel-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: var(--panel-block-gap);
}

.panel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.72rem 1.2rem;
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.15s ease;
}

.panel-btn__icon {
  flex-shrink: 0;
  opacity: 0.88;
}

.panel-btn--primary {
  color: #eef2fb;
  background: rgba(127, 157, 255, 0.22);
  border: 1px solid rgba(127, 157, 255, 0.55);
  box-shadow:
    0 2px 14px rgba(5, 8, 18, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.panel-btn--primary:hover {
  background: rgba(127, 157, 255, 0.34);
  border-color: rgba(160, 185, 255, 0.72);
  box-shadow:
    0 4px 20px rgba(5, 8, 18, 0.55),
    0 0 24px rgba(127, 157, 255, 0.18);
  transform: translateY(-1px);
}

.panel-btn--secondary {
  color: var(--panel-text, var(--text));
  background: rgba(9, 13, 24, 0.55);
  border: 1px solid rgba(147, 170, 219, 0.35);
  box-shadow: 0 2px 12px rgba(5, 8, 18, 0.4);
}

@supports (backdrop-filter: blur(8px)) or (-webkit-backdrop-filter: blur(8px)) {
  .panel-btn--secondary {
    backdrop-filter: blur(10px) saturate(150%);
    -webkit-backdrop-filter: blur(10px) saturate(150%);
  }
}

.panel-btn--secondary:hover {
  background: rgba(14, 20, 36, 0.72);
  border-color: rgba(160, 185, 255, 0.5);
  transform: translateY(-1px);
}

.panel.theme-mid .panel-btn {
  text-shadow: none;
}

.panel a:not(.panel-btn):not(.instagram-thumb-external):not(.youtube-thumb-external) {
  color: var(--panel-link, #fff);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--panel-link-underline, rgba(255, 255, 255, 0.42));
  text-underline-offset: 3px;
  transition:
    color 0.2s ease,
    opacity 0.2s ease,
    text-decoration-color 0.2s ease;
}

.panel a:not(.panel-btn):not(.instagram-thumb-external):not(.youtube-thumb-external):link,
.panel a:not(.panel-btn):not(.instagram-thumb-external):not(.youtube-thumb-external):visited {
  color: var(--panel-link, #fff);
}

.panel a:not(.panel-btn):not(.instagram-thumb-external):not(.youtube-thumb-external):hover,
.panel a:not(.panel-btn):not(.instagram-thumb-external):not(.youtube-thumb-external):focus-visible {
  color: var(--panel-link, #fff);
  opacity: 0.88;
  text-decoration-color: currentColor;
}

.panel a:not(.panel-btn):not(.instagram-thumb-external):not(.youtube-thumb-external):focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.45);
  outline-offset: 2px;
}

.panel.theme-light a:not(.panel-btn):not(.instagram-thumb-external):not(.youtube-thumb-external):focus-visible {
  outline-color: rgba(10, 14, 24, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

#three-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  cursor: grab;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

#three-canvas.orbit-grabbing {
  cursor: grabbing;
}

.solar-scale {
  position: fixed;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  height: min(48vh, 360px);
  pointer-events: auto;
}

.solar-scale-track {
  position: relative;
  height: 100%;
  width: 6px;
  min-height: 120px;
  pointer-events: auto;
  cursor: pointer;
}

.solar-scale-rail {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.07);
}

.solar-scale-gauge {
  --scale-gauge-start: 0;
  --scale-gauge-size: 0;
  --scale-gauge-color: rgba(255, 255, 255, 0.15);
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--scale-gauge-start) * 100%);
  height: calc(var(--scale-gauge-size) * 100%);
  border-radius: 999px;
  z-index: 0;
  pointer-events: none;
  background: color-mix(
    in srgb,
    var(--scale-gauge-color) 18%,
    rgba(255, 255, 255, 0.15)
  );
  opacity: 0.55;
  transition: opacity 0.2s ease;
}

.solar-scale.is-scale-gliding .solar-scale-gauge {
  opacity: 0.7;
}

.solar-scale-tick {
  position: absolute;
  left: 50%;
  z-index: 1;
  width: 6px;
  height: 1px;
  margin-left: -3px;
  margin-top: -0.5px;
  border-radius: 1px;
  background: rgba(232, 237, 247, 0.38);
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.3);
  pointer-events: auto;
  cursor: pointer;
}

.solar-scale-tick[data-stop="0"] {
  top: 100%;
}

.solar-scale-tick[data-stop="1"] {
  top: 85.71%;
}

.solar-scale-tick[data-stop="2"] {
  top: 71.43%;
}

.solar-scale-tick[data-stop="3"] {
  top: 57.14%;
}

.solar-scale-tick[data-stop="4"] {
  top: 42.86%;
}

.solar-scale-tick[data-stop="5"] {
  top: 28.57%;
}

.solar-scale-tick[data-stop="6"] {
  top: 14.29%;
}

.solar-scale-tick[data-stop="7"] {
  top: 0%;
}

.solar-scale-marker {
  --scale-progress: 0;
  --scale-marker-color: var(--scale-marker-0);
  position: absolute;
  left: 50%;
  top: calc(var(--scale-progress) * 100%);
  z-index: 2;
  width: 8px;
  height: 8px;
  margin-left: -4px;
  margin-top: -4px;
  border-radius: 50%;
  touch-action: none;
  cursor: grab;
  pointer-events: auto;
  background: radial-gradient(
    circle at 35% 35%,
    color-mix(in srgb, var(--scale-marker-color) 22%, white),
    var(--scale-marker-color) 52%,
    color-mix(in srgb, var(--scale-marker-color) 72%, black) 100%
  );
  box-shadow:
    0 0 6px color-mix(in srgb, var(--scale-marker-color) 55%, transparent),
    0 0 2px rgba(255, 255, 255, 0.75),
    inset 0 0 0 1px rgba(255, 255, 255, 0.3);
  transition:
    top 0.12s linear,
    background 0.35s ease,
    box-shadow 0.35s ease;
  will-change: top;
}

.solar-scale-marker::before {
  content: "";
  position: absolute;
  inset: -14px;
}

.solar-scale-marker.is-dragging,
.solar-scale.is-scale-dragging .solar-scale-marker {
  cursor: grabbing;
}

.solar-scale.is-scale-dragging .solar-scale-marker,
.solar-scale.is-scale-gliding .solar-scale-marker {
  transition:
    background 0.35s ease,
    box-shadow 0.35s ease;
}

#overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1;
  will-change: transform;
  pointer-events: none;
}

#overlay[data-long-jump="true"] {
  transition: none;
}

#overlay[data-long-jump="true"] .panel {
  transition: none;
  transform: translateY(0) translateX(0);
}

#overlay[data-long-jump="true"] .panel.is-long-jump-from {
  transform: translateY(var(--long-jump-offset, 0)) translateX(0);
}

#overlay[data-long-jump="true"] .panel.is-long-jump-to {
  transform: translateY(0) translateX(0);
}

#overlay[data-long-jump="true"] .panel.is-long-jump-hidden {
  visibility: hidden;
  pointer-events: none;
}

#overlay[data-adjacent-glide="true"] .panel {
  transition: none;
}

#overlay .panel {
  pointer-events: auto;
}

.panel {
  position: relative;
  height: 100vh;
  width: min(860px, 92vw);
  margin: 0 auto;
  padding: clamp(56px, 12vh, 120px) clamp(16px, 3vw, 28px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--panel-block-gap);
  opacity: 0.35;
  transform: translateY(16px);
  transition:
    opacity 0.55s ease,
    transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.panel.panel--frame-left {
  width: min(520px, calc(100vw - var(--solar-scale-gutter) - clamp(20px, 5vw, 48px)));
  margin-left: var(--solar-scale-gutter);
  margin-right: auto;
  align-items: flex-start;
  text-align: left;
}

.panel.panel--frame-right {
  width: min(520px, calc(100vw - var(--side-nav-gutter) - clamp(20px, 5vw, 48px)));
  margin-left: auto;
  margin-right: var(--side-nav-gutter);
  align-items: flex-end;
  text-align: right;
}

.panel.panel--frame-left:not(.is-active) {
  transform: translateY(16px) translateX(-18px);
}

.panel.panel--frame-right:not(.is-active) {
  transform: translateY(16px) translateX(18px);
}

.panel.is-active {
  opacity: 1;
  transform: translateY(0) translateX(0);
}

.panel.panel--frame-right .panel-lead,
.panel.panel--frame-right .panel-copy,
.panel.panel--frame-right .panel-card,
.panel.panel--frame-right .video-grid,
.panel.panel--frame-right .instagram-grid {
  align-self: flex-end;
  width: 100%;
}

.panel.panel--frame-right h1,
.panel.panel--frame-right h2,
.panel.panel--frame-right p {
  margin-left: auto;
}

.panel.panel--frame-left > :not(.panel-lead):not(.panel-copy):not(.panel-card),
.panel.panel--frame-right > :not(.panel-lead):not(.panel-copy):not(.panel-card) {
  width: 100%;
  max-width: var(--panel-content-max);
}

.tag {
  margin: 0 0 10px;
  color: var(--panel-tag, var(--tag));
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
  font-weight: 700;
}

h1,
h2 {
  margin: 0 0 clamp(10px, 2vh, 18px);
  line-height: 1.08;
  color: var(--panel-text, var(--text));
}

.panel.theme-dark h1,
.panel.theme-dark h2 {
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.45);
}

h1 {
  max-width: 18ch;
  font-size: clamp(2rem, 4.5vw + 1.2vh, 4.5rem);
}

h2 {
  max-width: 24ch;
  font-size: clamp(1.55rem, 3.2vw + 0.8vh, 3.2rem);
}

p {
  margin: 0;
  color: var(--panel-muted, var(--muted));
  max-width: 60ch;
  line-height: 1.6;
  font-size: clamp(1rem, 2vw, 1.15rem);
}

.hero,
.outro {
  padding-top: clamp(72px, 16vh, 140px);
}

.side-nav {
  position: fixed;
  top: 50%;
  right: clamp(8px, 1.2vw, 16px);
  transform: translateY(-50%);
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  width: fit-content;
  max-width: min(42vw, 220px);
  box-sizing: border-box;
  padding: 10px;
  max-height: min(88vh, 420px);
  overflow-x: hidden;
  overflow-y: hidden;
  overscroll-behavior: contain;
  border-radius: 14px 0 0 14px;
  background: var(--nav-glass-bg);
  border: 1px solid var(--nav-glass-border);
  border-right: none;
  box-shadow: var(--nav-glass-shadow);
  pointer-events: auto;
}

@supports (backdrop-filter: blur(8px)) or (-webkit-backdrop-filter: blur(8px)) {
  .side-nav {
    backdrop-filter: blur(12px) saturate(165%);
    -webkit-backdrop-filter: blur(12px) saturate(165%);
  }
}

.nav-link {
  display: block;
  width: auto;
  max-width: 100%;
  color: rgba(232, 237, 247, 0.78);
  opacity: 1;
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px;
  white-space: nowrap;
  border-radius: 8px;
  text-shadow: var(--nav-link-shadow);
  -webkit-text-stroke: var(--nav-link-stroke);
  transition:
    color 0.3s ease,
    transform 0.3s ease,
    background 0.3s ease,
    box-shadow 0.3s ease;
}

.nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.is-active,
.nav-link[aria-current="page"] {
  color: #ffffff;
  transform: translateX(-4px);
  background: rgba(127, 157, 255, 0.28);
  box-shadow:
    inset 0 0 0 1px rgba(127, 157, 255, 0.35),
    0 0 16px rgba(127, 157, 255, 0.25);
  text-shadow:
    var(--nav-link-shadow),
    0 0 12px rgba(127, 157, 255, 0.55);
}

/* Desktop hauteur confortable : nav sans scroll ni réserve scrollbar */
@media (min-width: 681px) and (min-height: 821px) {
  .side-nav {
    overflow-y: hidden;
    scrollbar-gutter: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .side-nav {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(5, 8, 18, 0.92);
  }
}

.panel-card {
  margin-top: 0;
  padding: clamp(14px, 2vw, 18px);
  border: 1px solid var(--panel-card-border, var(--card-border));
  border-radius: 14px;
  background: var(--panel-card-bg, var(--card-bg));
  backdrop-filter: blur(6px);
  width: 100%;
  max-width: min(720px, var(--panel-content-max));
  position: relative;
  z-index: 1;
}

.card-title {
  color: var(--panel-text, var(--text));
  margin-bottom: 8px;
  font-weight: 700;
}

audio {
  width: min(100%, 560px);
}

.inline-link {
  color: var(--panel-link, #fff);
}

.embed-source {
  margin-top: 10px;
  font-size: 0.9rem;
}

.embed-source a {
  text-decoration: none;
}

.embed-source a:hover,
.embed-source a:focus-visible {
  text-decoration: underline;
}

.soundcloud-card {
  max-width: min(100%, 720px);
}

.soundcloud-embed {
  border-radius: 10px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.2);
}

.soundcloud-embed iframe {
  display: block;
  width: 100%;
  border: 0;
}

.video-grid--syncing .youtube-thumb {
  opacity: 0.97;
}

.instagram-grid--loading {
  min-height: min(36vw, 220px);
  opacity: 0.92;
  transition: opacity 0.2s ease;
}

.video-grid {
  width: 100%;
  max-width: min(900px, 100%);
  box-sizing: border-box;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: max(16px, clamp(12px, 1.8vw, 20px));
  row-gap: max(16px, clamp(12px, 1.8vw, 20px));
  margin-top: 0;
}

.video-grid > .youtube-thumb,
.video-grid > [data-video-id] {
  min-width: 0;
  max-width: 100%;
}

.youtube-thumb {
  position: relative;
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  aspect-ratio: 16 / 9;
  min-height: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--panel-card-border, var(--card-border));
  background: rgba(5, 8, 18, 0.45);
  cursor: pointer;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}

.youtube-thumb:hover {
  transform: translateY(-2px);
  border-color: rgba(127, 157, 255, 0.55);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

.youtube-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.instagram-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(12px, 1.8vw, 20px);
  margin-top: 0;
}

.instagram-grid--has-posts {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(0, 1fr));
}

.instagram-thumb {
  position: relative;
  display: block;
  aspect-ratio: 1;
  min-height: 108px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--panel-card-border, var(--card-border));
  background: rgba(5, 8, 18, 0.35);
  text-decoration: none;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}

.instagram-thumb:hover {
  transform: translateY(-2px);
  border-color: rgba(127, 157, 255, 0.55);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

.instagram-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 108px;
  object-fit: cover;
  object-position: center;
  display: block;
}

.instagram-thumb-play,
.youtube-thumb-play {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 44px;
  height: 44px;
  margin: -22px 0 0 -22px;
  border-radius: 50%;
  background: rgba(5, 8, 18, 0.72);
  border: 2px solid rgba(255, 255, 255, 0.92);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  z-index: 2;
  pointer-events: none;
}

.instagram-thumb-play::after,
.youtube-thumb-play::after {
  content: "";
  position: absolute;
  left: 54%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 8px 0 8px 14px;
  border-color: transparent transparent transparent #fff;
}

.instagram-thumb--fallback:not(:has(img)) {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px;
  background: linear-gradient(
    145deg,
    rgba(131, 58, 180, 0.28),
    rgba(5, 8, 18, 0.55)
  );
}

.instagram-thumb--fallback .instagram-thumb-fallback-label {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  z-index: 2;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
  text-align: center;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.65);
  pointer-events: none;
}

.instagram-slot {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  min-height: 108px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--panel-card-border, var(--card-border));
  text-decoration: none;
  color: var(--panel-text, var(--text));
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}

.instagram-slot:hover {
  transform: translateY(-2px);
  border-color: rgba(127, 157, 255, 0.55);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

.instagram-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.instagram-gallery-note {
  margin: 0 0 10px;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--panel-muted, var(--muted));
}

.instagram-gallery-note code {
  font-size: 0.82em;
}

.instagram-slot--cta,
.instagram-slot--placeholder {
  background: linear-gradient(
    145deg,
    rgba(127, 157, 255, 0.22),
    rgba(121, 246, 214, 0.14)
  );
  gap: 4px;
  padding: 12px 8px;
  text-align: center;
}

.instagram-slot-hint {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--panel-muted, var(--muted));
  opacity: 0.9;
}

.instagram-slot-icon {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  opacity: 0.85;
}

.instagram-slot--cta .instagram-slot-label,
.instagram-slot--placeholder .instagram-slot-label {
  margin-top: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--panel-muted, var(--muted));
}

.instagram-slot-code {
  margin-top: 4px;
  font-size: 0.62rem;
  opacity: 0.75;
}

.instagram-cta {
  margin-top: 12px;
  text-align: center;
}

.instagram-cta a {
  color: var(--panel-link, #fff);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.instagram-cta a:hover,
.instagram-cta a:focus-visible {
  text-decoration: underline;
}

.instagram-thumb.instagram-thumb--video,
.instagram-thumb.instagram-thumb--photo {
  cursor: pointer;
}

.instagram-thumb-external,
.youtube-thumb-external {
  display: none;
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 3;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(5, 8, 18, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease;
}

.instagram-thumb-external:hover,
.youtube-thumb-external:hover {
  background: rgba(127, 157, 255, 0.55);
  border-color: rgba(255, 255, 255, 0.65);
  transform: scale(1.05);
}

.instagram-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(12px, 4vw, 28px);
}

.instagram-modal[hidden] {
  display: none !important;
}

.instagram-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 14, 0.88);
  cursor: pointer;
}

.instagram-modal__panel {
  position: relative;
  z-index: 1;
  width: min(420px, 100%);
  max-height: min(92vh, 900px);
}

.instagram-modal--profile .instagram-modal__panel {
  width: min(560px, 100%);
}

.instagram-modal__title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.instagram-modal__close {
  position: absolute;
  top: -44px;
  right: 0;
  z-index: 2;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  background: rgba(5, 8, 18, 0.85);
  color: #fff;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition:
    background 0.2s ease,
    border-color 0.2s ease;
}

.instagram-modal__close:hover {
  background: rgba(127, 157, 255, 0.45);
  border-color: rgba(255, 255, 255, 0.7);
}

.instagram-modal__body {
  max-height: min(85vh, 900px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 14px;
  background: #000;
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.55);
}

.instagram-modal__frame-wrap {
  width: 100%;
  background: #000;
  overflow: hidden;
}

.instagram-modal__frame-wrap--reel {
  aspect-ratio: 9 / 16;
  min-height: min(72vh, 640px);
}

.instagram-modal__frame-wrap--post {
  min-height: min(72vh, 720px);
}

.instagram-modal__frame-wrap iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: inherit;
  border: 0;
}

.instagram-profile-modal__scroll iframe {
  display: block;
  width: 100%;
  min-height: min(78vh, 820px);
  border: 0;
}

.instagram-profile-modal__fallback {
  margin: 0;
  padding: 20px 16px;
  text-align: center;
  font-size: 0.92rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.88);
}

.instagram-profile-modal__fallback a {
  color: #fff;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.42);
  text-underline-offset: 3px;
}

.instagram-profile-modal__fallback a:link,
.instagram-profile-modal__fallback a:visited {
  color: #fff;
}

.instagram-profile-modal__fallback a:hover,
.instagram-profile-modal__fallback a:focus-visible {
  opacity: 0.88;
  text-decoration-color: currentColor;
}

body.instagram-modal-open,
body.youtube-video-modal-open {
  overflow: hidden;
}

.youtube-video-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(12px, 4vw, 28px);
}

.youtube-video-modal[hidden] {
  display: none !important;
}

.youtube-video-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 14, 0.88);
  cursor: pointer;
}

.youtube-video-modal__panel {
  position: relative;
  z-index: 1;
  width: min(960px, 100%);
}

.youtube-video-modal__title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.youtube-video-modal__close {
  position: absolute;
  top: -44px;
  right: 0;
  z-index: 2;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  background: rgba(5, 8, 18, 0.85);
  color: #fff;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition:
    background 0.2s ease,
    border-color 0.2s ease;
}

.youtube-video-modal__close:hover {
  background: rgba(127, 157, 255, 0.45);
  border-color: rgba(255, 255, 255, 0.7);
}

.youtube-video-modal__frame-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: min(85vh, 820px);
  background: #000;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.55);
}

.youtube-video-modal__frame-wrap iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.card-3d {
  perspective: 900px;
}

.mini-scene {
  height: 220px;
  display: grid;
  place-items: center;
}

.cube {
  position: relative;
  width: 110px;
  height: 110px;
  transform-style: preserve-3d;
  animation: spin-cube 9s linear infinite;
}

.face {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(127, 157, 255, 0.45);
  background: linear-gradient(140deg, rgba(127, 157, 255, 0.32), rgba(121, 246, 214, 0.22));
  box-shadow: inset 0 0 16px rgba(127, 157, 255, 0.2);
}

.front {
  transform: translateZ(55px);
}

.back {
  transform: rotateY(180deg) translateZ(55px);
}

.left {
  transform: rotateY(-90deg) translateZ(55px);
}

.right {
  transform: rotateY(90deg) translateZ(55px);
}

.top {
  transform: rotateX(90deg) translateZ(55px);
}

.bottom {
  transform: rotateX(-90deg) translateZ(55px);
}

@keyframes spin-cube {
  from {
    transform: rotateX(-18deg) rotateY(0deg);
  }
  to {
    transform: rotateX(-18deg) rotateY(360deg);
  }
}

@media (max-width: 920px) {
  .solar-scale {
    left: 10px;
    height: min(40vh, 280px);
  }

  :root {
    --solar-scale-gutter: clamp(64px, 10vw, 96px);
  }

  .side-nav {
    right: 0;
    gap: 3px;
    padding: 8px;
  }

  .nav-link {
    font-size: 0.72rem;
    padding: 6px;
  }

  @supports (backdrop-filter: blur(8px)) or (-webkit-backdrop-filter: blur(8px)) {
    .side-nav {
      backdrop-filter: blur(10px) saturate(155%);
      -webkit-backdrop-filter: blur(10px) saturate(155%);
    }
  }
}

/* Laptop 13" et viewports desktop à hauteur limitée (ex. 1280×800, 1366×768) */
@media (min-width: 681px) and (max-height: 820px) {
  :root {
    --compact-chrome-top: max(24px, env(safe-area-inset-top));
    --compact-chrome-bottom: clamp(16px, 4vh, 32px);
    --panel-block-gap: clamp(0.65rem, 1.6vh, 1rem);
    --panel-content-max: min(
      480px,
      calc(100vw - var(--solar-scale-gutter) - var(--side-nav-gutter) - 48px)
    );
  }

  /* Masque haut : #overlay translate — évite l’aperçu d’une autre section / scène 3D */
  body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 2;
    height: var(--compact-chrome-top);
    pointer-events: none;
    background: linear-gradient(
      180deg,
      var(--bg) 0%,
      var(--bg) 68%,
      rgba(5, 7, 13, 0.94) 86%,
      transparent 100%
    );
  }

  .solar-scale {
    height: min(30vh, 220px);
  }

  .side-nav {
    max-height: min(72vh, 340px);
    padding: 8px;
    overflow-y: auto;
    scrollbar-gutter: stable;
  }

  .panel {
    padding-top: calc(var(--compact-chrome-top) + clamp(12px, 3.5vh, 28px));
    padding-bottom: var(--compact-chrome-bottom);
    justify-content: flex-start;
    gap: var(--panel-block-gap);
    overflow-y: hidden;
  }

  .panel.is-active {
    overflow-y: auto;
    overscroll-behavior-y: contain;
    -webkit-overflow-scrolling: touch;
    scroll-padding-top: var(--compact-chrome-top);
    scroll-padding-bottom: var(--compact-chrome-bottom);
  }

  .panel:not(.is-active) {
    overflow-y: hidden;
  }

  #overlay[data-adjacent-glide="true"] .panel.is-active,
  #overlay[data-long-jump="true"] .panel.is-active {
    overflow-y: hidden;
  }

  .hero,
  .outro {
    padding-top: calc(var(--compact-chrome-top) + clamp(16px, 4vh, 36px));
  }

  h1 {
    font-size: clamp(1.75rem, 5.5vh, 2.65rem);
  }

  h2 {
    font-size: clamp(1.4rem, 4.2vh, 2.05rem);
  }

  p {
    font-size: clamp(0.9rem, 1.6vh, 1.05rem);
    line-height: 1.55;
  }

  .tag {
    font-size: 0.76rem;
  }

  .panel-card {
    padding: clamp(12px, 1.8vh, 16px);
  }

  .card-title {
    margin-bottom: 6px;
    font-size: 0.92rem;
  }

  .soundcloud-embed iframe {
    height: min(320px, 42vh);
  }

  .video-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: max(16px, clamp(10px, 2vw, 14px));
    row-gap: max(16px, clamp(10px, 2vw, 14px));
  }

  .instagram-grid,
  .instagram-grid--has-posts {
    gap: clamp(10px, 2vw, 14px);
  }

  .instagram-thumb,
  .instagram-slot {
    min-height: 0;
  }

  .mini-scene {
    height: clamp(140px, 22vh, 180px);
  }

  .cube {
    width: 88px;
    height: 88px;
  }

  .front {
    transform: translateZ(44px);
  }

  .back {
    transform: rotateY(180deg) translateZ(44px);
  }

  .left {
    transform: rotateY(-90deg) translateZ(44px);
  }

  .right {
    transform: rotateY(90deg) translateZ(44px);
  }

  .top {
    transform: rotateX(90deg) translateZ(44px);
  }

  .bottom {
    transform: rotateX(-90deg) translateZ(44px);
  }

  #son.panel.is-active,
  #video.panel.is-active,
  #visuel.panel.is-active {
    padding-bottom: calc(var(--compact-chrome-bottom) + min(48px, 8vh));
  }
}

@media (max-width: 680px) {
  :root {
    --mobile-solar-top: max(12px, env(safe-area-inset-top));
    /* Rail 6px + marqueur 8px + marge contenu (pas de pilule verre) */
    --mobile-chrome-top: calc(var(--mobile-solar-top) + 22px);
    --mobile-chrome-bottom: calc(52px + max(8px, env(safe-area-inset-bottom)));
    --solar-scale-gutter: 0px;
    --side-nav-gutter: 0px;
  }

  /* Masque viewport-fixe : le #overlay translate en Y ; padding seul ne suffit pas */
  body::before,
  body::after {
    content: "";
    position: fixed;
    left: 0;
    right: 0;
    z-index: 2;
    pointer-events: none;
    background: var(--nav-glass-bg);
  }

  body::before {
    top: 0;
    height: var(--mobile-chrome-top);
    background: linear-gradient(
      180deg,
      var(--bg) 0%,
      var(--bg) 72%,
      rgba(5, 7, 13, 0.92) 88%,
      transparent 100%
    );
    border-bottom: none;
  }

  @supports (backdrop-filter: blur(8px)) or (-webkit-backdrop-filter: blur(8px)) {
    body::after {
      backdrop-filter: blur(12px) saturate(165%);
      -webkit-backdrop-filter: blur(12px) saturate(165%);
    }
  }

  body::after {
    bottom: 0;
    height: var(--mobile-chrome-bottom);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .solar-scale {
    top: var(--mobile-solar-top);
    bottom: auto;
    left: 50%;
    transform: translateX(-50%);
    width: min(calc(100vw - 32px), 360px);
    height: 6px;
    min-width: 160px;
    padding: 0 max(12px, env(safe-area-inset-right)) 0 max(12px, env(safe-area-inset-left));
    box-sizing: content-box;
    background: transparent;
    border: none;
    box-shadow: none;
  }

  .solar-scale-track {
    width: 100%;
    height: 100%;
    min-height: 0;
  }

  .solar-scale-tick {
    width: 1px;
    height: 6px;
    margin-left: -0.5px;
    margin-top: -3px;
  }

  .solar-scale-tick[data-stop="0"] {
    top: 50%;
    left: 0%;
  }

  .solar-scale-tick[data-stop="1"] {
    top: 50%;
    left: 14.29%;
  }

  .solar-scale-tick[data-stop="2"] {
    top: 50%;
    left: 28.57%;
  }

  .solar-scale-tick[data-stop="3"] {
    top: 50%;
    left: 42.86%;
  }

  .solar-scale-tick[data-stop="4"] {
    top: 50%;
    left: 57.14%;
  }

  .solar-scale-tick[data-stop="5"] {
    top: 50%;
    left: 71.43%;
  }

  .solar-scale-tick[data-stop="6"] {
    top: 50%;
    left: 85.71%;
  }

  .solar-scale-tick[data-stop="7"] {
    top: 50%;
    left: 100%;
  }

  .solar-scale-marker {
    top: 50%;
    left: calc((1 - var(--scale-progress)) * 100%);
    margin-left: -4px;
    margin-top: -4px;
    transition:
      left 0.12s linear,
      background 0.35s ease,
      box-shadow 0.35s ease;
    will-change: left;
  }

  .solar-scale-gauge {
    top: 0;
    bottom: 0;
    height: auto;
    width: calc(var(--scale-gauge-size) * 100%);
    left: calc((1 - var(--scale-gauge-start) - var(--scale-gauge-size)) * 100%);
  }

  .solar-scale.is-scale-dragging .solar-scale-marker,
  .solar-scale.is-scale-gliding .solar-scale-marker {
    transition:
      background 0.35s ease,
      box-shadow 0.35s ease;
  }

  .side-nav {
    top: auto;
    left: 0;
    right: 0;
    bottom: 0;
    transform: none;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: stretch;
    gap: 4px;
    width: 100%;
    max-width: 100vw;
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding:
      8px
      max(8px, env(safe-area-inset-right))
      max(8px, env(safe-area-inset-bottom))
      max(8px, env(safe-area-inset-left));
    border-radius: 0;
    border: none;
    border-top: 1px solid var(--nav-glass-border);
    box-shadow: 0 -6px 28px rgba(0, 0, 0, 0.32);
  }

  .side-nav::-webkit-scrollbar {
    display: none;
  }

  .nav-link {
    flex: 1 1 0;
    min-width: 0;
    font-size: clamp(0.58rem, 2.6vw, 0.72rem);
    padding: 8px 4px;
    text-align: center;
    border-radius: 999px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-link[data-zone-link="0"] {
    order: 0;
  }

  .nav-link[data-zone-link="1"] {
    order: 1;
  }

  .nav-link[data-zone-link="2"] {
    order: 2;
  }

  .nav-link[data-zone-link="3"] {
    order: 3;
  }

  .nav-link[data-zone-link="4"] {
    order: 4;
  }

  .nav-link[data-zone-link="5"] {
    order: 5;
  }

  .nav-link[data-zone-link="6"] {
    order: 6;
  }

  .nav-link[data-zone-link="7"] {
    order: 7;
  }

  .nav-link.is-active,
  .nav-link[aria-current="page"] {
    transform: none;
  }

  .panel.panel--frame-left,
  .panel.panel--frame-right {
    width: min(860px, 92vw);
    margin-left: auto;
    margin-right: auto;
    align-items: flex-start;
    text-align: left;
  }

  .panel {
    padding-top: calc(var(--mobile-chrome-top) + clamp(16px, 5vh, 40px));
    padding-bottom: var(--mobile-chrome-bottom);
    justify-content: flex-start;
  }

  .panel.is-active {
    overflow-y: auto;
    overscroll-behavior-y: contain;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
    scroll-padding-top: var(--mobile-chrome-top);
    scroll-padding-bottom: var(--mobile-chrome-bottom);
  }

  .panel:not(.is-active) {
    overflow-y: hidden;
  }

  #overlay[data-adjacent-glide="true"] .panel.is-active,
  #overlay[data-long-jump="true"] .panel.is-active {
    overflow-y: hidden;
  }

  .hero,
  .outro {
    padding-top: calc(var(--mobile-chrome-top) + clamp(24px, 8vh, 56px));
  }

  .panel.panel--frame-right .panel-lead,
  .panel.panel--frame-right .panel-copy,
  .panel.panel--frame-right .panel-card,
  .panel.panel--frame-right .video-grid,
  .panel.panel--frame-right .instagram-grid {
    align-self: stretch;
  }

  .panel.panel--frame-right h1,
  .panel.panel--frame-right h2,
  .panel.panel--frame-right p {
    margin-left: 0;
  }

  .video-grid {
    grid-template-columns: 1fr;
    column-gap: max(16px, clamp(10px, 2.5vw, 14px));
    row-gap: max(16px, clamp(10px, 2.5vw, 14px));
  }

  .instagram-grid,
  .instagram-grid--has-posts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: auto;
    gap: clamp(10px, 2.5vw, 14px);
  }

  .soundcloud-embed iframe {
    height: 300px;
    /* Laisse le scroll du panel absorber le touch (comme les vignettes Video). */
    pointer-events: none;
  }

  #son.panel.is-active,
  #video.panel.is-active,
  #visuel.panel.is-active {
    padding-bottom: calc(
      var(--mobile-chrome-bottom) + min(80px, 12vh)
    );
  }
}