/* ==========================================================================
   103 — Side Drawer
   Drawer latéral : panneau qui glisse depuis la droite (easing expo) avec
   ombre portée progressive, backdrop en fade, contenu en cascade retardée
   (titre → liens → footer), sortie plus rapide. Poignée de bord visible au
   repos qui « respire » discrètement pour inviter au clic.
   Racine : .side-drawer — états .is-open / .is-closing pilotés par anim.js.
   Démo CONTENUE dans la zone : overlay absolute dans la racine (relative).
   Voir README pour le passage en fixed plein écran.
   ========================================================================== */

.side-drawer {
  --sd-accent: var(--ml-accent, #7c8cff);

  position: relative;
  width: min(320px, 100%);
  height: 236px;
  border-radius: 16px;
  overflow: hidden;
  background: var(--ml-surface, #151a24);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--ml-fg, #e8eaf2);
}

/* --- Décor : fausse interface derrière le drawer ---------------------------- */

.side-drawer__scene {
  position: absolute;
  inset: 0;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.side-drawer__ghost {
  height: 9px;
  border-radius: 5px;
  background: color-mix(in srgb, var(--ml-muted, #8b91a3) 15%, transparent);
}

.side-drawer__ghost--title {
  width: 44%;
  height: 13px;
  border-radius: 7px;
  background: color-mix(in srgb, var(--ml-muted, #8b91a3) 25%, transparent);
}

.side-drawer__ghost--short { width: 60%; }

/* --- Déclencheur -------------------------------------------------------------- */

.side-drawer__trigger {
  position: absolute;
  left: 50%;
  bottom: 24px;
  padding: 9px 22px;
  border: 0;
  border-radius: 10px;
  background: var(--sd-accent);
  color: var(--ml-bg, #0d1017);
  font-family: inherit;
  font-size: 0.84rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.01em;
  cursor: pointer;
  transform: translateX(-50%);
  transition:
    transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.3s ease;
}

.side-drawer__trigger:hover {
  transform: translateX(-50%) translateY(-2px);
  box-shadow: 0 10px 22px -10px color-mix(in srgb, var(--sd-accent) 65%, transparent);
}

.side-drawer__trigger:active {
  transform: translateX(-50%) translateY(0) scale(0.97);
}

.side-drawer__trigger:focus-visible {
  outline: 2px solid var(--sd-accent);
  outline-offset: 3px;
}

/* --- Poignée de bord : respire au repos ---------------------------------------- */

.side-drawer__handle {
  position: absolute;
  top: 50%;
  right: 0;
  z-index: 1;
  width: 22px;
  height: 72px;
  display: grid;
  place-items: center;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  transform: translateY(-50%);
  transition: opacity 0.2s ease;
}

.side-drawer__handle:focus-visible {
  outline: 2px solid var(--sd-accent);
  outline-offset: -2px;
  border-radius: 8px;
}

.side-drawer__handle-bar {
  display: block;
  width: 4px;
  height: 44px;
  border-radius: 2px;
  background: color-mix(in srgb, var(--sd-accent) 65%, var(--ml-muted, #8b91a3));
  animation: side-drawer-breathe 2.8s ease-in-out infinite;
}

.side-drawer__handle:hover .side-drawer__handle-bar {
  animation-play-state: paused;
  transform: scaleY(1.2);
  opacity: 1;
}

@keyframes side-drawer-breathe {
  0%, 100% { transform: scaleY(1); opacity: 0.45; }
  50%      { transform: scaleY(1.16) translateX(-1px); opacity: 0.9; }
}

/* Poignée escamotée pendant l'ouverture */
.side-drawer.is-open .side-drawer__handle,
.side-drawer.is-closing .side-drawer__handle {
  opacity: 0;
  pointer-events: none;
}

/* --- Overlay + backdrop ---------------------------------------------------------- */

.side-drawer__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
}

.side-drawer__overlay[hidden] { display: none; }

.side-drawer__backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--ml-bg, #0d1017) 62%, transparent);
  opacity: 0;
  cursor: pointer;
  transition: opacity 0.4s ease;
}

.side-drawer.is-open .side-drawer__backdrop { opacity: 1; }

.side-drawer.is-closing .side-drawer__backdrop {
  transition-duration: 0.2s; /* sortie plus rapide */
}

/* --- Panneau : glisse expo + ombre progressive ------------------------------------ */

.side-drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(196px, 78%);
  padding: 18px 16px 14px;
  display: flex;
  flex-direction: column;
  background: color-mix(in srgb, var(--ml-surface, #151a24) 88%, white);
  border-left: 1px solid rgba(255, 255, 255, 0.09);
  transform: translateX(105%);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1); /* expo out */
  outline: none;
}

/* Ombre portée progressive : pseudo-élément fondu séparément (opacity only) */
.side-drawer__panel::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 1px;
  box-shadow: -26px 0 42px 6px rgba(0, 0, 0, 0.55);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.side-drawer.is-open .side-drawer__panel {
  transform: translateX(0);
}

.side-drawer.is-open .side-drawer__panel::before {
  opacity: 1;
}

.side-drawer.is-closing .side-drawer__panel {
  transition:
    transform 0.28s cubic-bezier(0.55, 0, 0.68, 0.4); /* sortie pressée */
}

.side-drawer.is-closing .side-drawer__panel::before {
  transition-duration: 0.24s;
}

/* --- Contenu : cascade retardée (titre → liens → footer) --------------------------- */

.side-drawer__close,
.side-drawer__title,
.side-drawer__link,
.side-drawer__footer {
  opacity: 0;
  transform: translateX(14px);
  transition:
    opacity 0.14s ease,
    transform 0.14s ease; /* fermeture : repli rapide, sans cascade */
}

.side-drawer.is-open .side-drawer__close,
.side-drawer.is-open .side-drawer__title,
.side-drawer.is-open .side-drawer__link,
.side-drawer.is-open .side-drawer__footer {
  opacity: 1;
  transform: translateX(0);
  transition:
    opacity 0.34s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.34s cubic-bezier(0.22, 1, 0.36, 1);
}

.side-drawer.is-open .side-drawer__close                { transition-delay: 0.14s; }
.side-drawer.is-open .side-drawer__title                { transition-delay: 0.16s; }
.side-drawer.is-open .side-drawer__link:nth-of-type(1)  { transition-delay: 0.21s; }
.side-drawer.is-open .side-drawer__link:nth-of-type(2)  { transition-delay: 0.25s; }
.side-drawer.is-open .side-drawer__link:nth-of-type(3)  { transition-delay: 0.29s; }
.side-drawer.is-open .side-drawer__link:nth-of-type(4)  { transition-delay: 0.33s; }
.side-drawer.is-open .side-drawer__footer               { transition-delay: 0.38s; }

/* --- Habillage du contenu ------------------------------------------------------------ */

.side-drawer__close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ml-muted, #8b91a3);
  cursor: pointer;
}

.side-drawer__close:hover {
  color: var(--ml-fg, #e8eaf2);
  background: rgba(255, 255, 255, 0.07);
}

.side-drawer__close:focus-visible {
  outline: 2px solid var(--sd-accent);
  outline-offset: 2px;
}

.side-drawer__close svg {
  display: block;
  width: 13px;
  height: 13px;
}

.side-drawer__title {
  margin: 0 0 10px;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ml-muted, #8b91a3);
}

.side-drawer__nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.side-drawer__link {
  display: block;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ml-fg, #e8eaf2);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.2;
  text-align: left;
  cursor: pointer;
}

.side-drawer__link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--sd-accent);
}

.side-drawer__link:focus-visible {
  outline: 2px solid var(--sd-accent);
  outline-offset: -2px;
}

.side-drawer__footer {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 0.66rem;
  color: var(--ml-muted, #8b91a3);
}

/* --- Reduced motion -------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .side-drawer__trigger {
    transition: none;
  }

  .side-drawer__trigger:hover,
  .side-drawer__trigger:active {
    transform: translateX(-50%);
  }

  .side-drawer__handle-bar {
    animation: none;
    opacity: 0.8;
  }

  .side-drawer__handle:hover .side-drawer__handle-bar {
    transform: none;
  }

  .side-drawer__backdrop,
  .side-drawer.is-closing .side-drawer__backdrop,
  .side-drawer__panel,
  .side-drawer.is-closing .side-drawer__panel,
  .side-drawer__panel::before,
  .side-drawer.is-closing .side-drawer__panel::before {
    transition-duration: 0.01s;
  }

  .side-drawer__close,
  .side-drawer__title,
  .side-drawer__link,
  .side-drawer__footer,
  .side-drawer.is-open .side-drawer__close,
  .side-drawer.is-open .side-drawer__title,
  .side-drawer.is-open .side-drawer__link,
  .side-drawer.is-open .side-drawer__footer {
    transition-duration: 0.01s;
    transition-delay: 0s;
  }
}