/* =========================================================
   PREMIUM — Keynote Stack v2 (plus premium / plus clean)
   - meilleure hiérarchie visuelle
   - transitions texte + tabs plus Apple
   - spotlight fin + micro contrast
   - + Focus selected shot: blur + dim background
   ========================================================= */

.premium {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(1000px 650px at 18% 18%, rgba(0, 212, 255, .16), transparent 62%),
    radial-gradient(980px 680px at 82% 38%, rgba(124, 77, 255, .15), transparent 64%),
    radial-gradient(900px 700px at 50% 120%, rgba(0, 255, 170, .10), transparent 60%),
    linear-gradient(180deg, #060914, #050812);
}

/* FX */
.premiumFx {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.premiumFx__aurora {
  position: absolute;
  inset: -32%;
  background:
    radial-gradient(circle at 22% 32%, rgba(0, 212, 255, .18), transparent 55%),
    radial-gradient(circle at 75% 38%, rgba(124, 77, 255, .16), transparent 56%),
    radial-gradient(circle at 48% 82%, rgba(0, 255, 170, .11), transparent 60%);
  filter: blur(20px);
  opacity: .95;
  transform: translateZ(0);
}

.premiumFx__grain {
  position: absolute;
  inset: 0;
  opacity: .16;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
}

.premiumFx__vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(1200px 740px at 50% 35%, transparent 55%, rgba(0, 0, 0, .60) 100%);
  opacity: .95;
}

.premiumWrap {
  position: relative;
  z-index: 2;
}

/* Header */
.premiumHead {
  padding-top: clamp(28px, 4vw, 46px);
  padding-bottom: 18px;
  max-width: 76rem;
}

.premiumBadges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.premiumBadge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(255, 255, 255, .085);
  backdrop-filter: blur(14px);
  font-weight: 950;
  letter-spacing: .01em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .10);
}

/* petit “logo dot” Apple-like (sans asset) */
.premiumBadge::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 99px;
  background: linear-gradient(90deg, rgba(0, 212, 255, 1), rgba(124, 77, 255, 1));
  box-shadow: 0 0 0 4px rgba(255, 255, 255, .06);
  flex: 0 0 auto;
}

.premiumPill {
  display: inline-flex;
  align-items: center;
  padding: 9px 13px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .10);
  background: rgba(0, 0, 0, .22);
  color: rgba(255, 255, 255, .80);
  font-weight: 850;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
}

.premiumTitle {
  margin: 0 0 10px;
  font-size: clamp(28px, 3.25vw, 46px);
  line-height: 1.05;
  letter-spacing: -.035em;
}

.premiumLead {
  margin: 0;
  max-width: 70ch;
  color: rgba(255, 255, 255, .80);
  font-weight: 820;
  line-height: 1.55;
}

.premiumGrad {
  background: linear-gradient(90deg, rgba(0, 212, 255, 1), rgba(124, 77, 255, 1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.premiumGrad2 {
  background: linear-gradient(90deg, rgba(0, 255, 170, 1), rgba(0, 212, 255, 1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Layout */
.premiumLayout {
  display: grid;
  grid-template-columns: 1.18fr .82fr;
  gap: 14px;
  align-items: start;
}

/* Showcase (left) */
.premiumShowcase {
  position: relative;
  border-radius: 32px;
  border: 1px solid rgba(255, 255, 255, .12);
  background: linear-gradient(180deg, rgba(255, 255, 255, .075), rgba(255, 255, 255, .03));
  backdrop-filter: blur(18px);
  box-shadow:
    0 60px 160px rgba(0, 0, 0, .48),
    inset 0 1px 0 rgba(255, 255, 255, .10);
  padding: 14px;
  overflow: hidden;
}

/* Backplate (donne la “propreté” Apple) */
.premiumShowcase::before {
  content: "";
  position: absolute;
  inset: 66px 14px 14px 14px;
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, .10);
  background:
    radial-gradient(1000px 420px at 18% 20%, rgba(255, 255, 255, .085), transparent 60%),
    radial-gradient(900px 420px at 82% 70%, rgba(255, 255, 255, .05), transparent 60%),
    rgba(0, 0, 0, .14);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .07);
  pointer-events: none;
}

/* spotlight fin, contrôlé par JS (variables --sx --sy --sop) */
.premiumShowcase::after {
  content: "";
  position: absolute;
  inset: -30%;
  background:
    radial-gradient(520px 420px at var(--sx, 55%) var(--sy, 35%), rgba(255, 255, 255, .10), transparent 70%);
  opacity: var(--sop, 0);
  transition: opacity .25s ease;
  pointer-events: none;
  mix-blend-mode: screen;
}

/* Tabs — plus premium */
.premiumTabs {
  position: relative;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  z-index: 2;
}

.premiumTab {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .06);
  color: rgba(255, 255, 255, .86);
  padding: 9px 12px;
  border-radius: 999px;
  font-weight: 900;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, filter .18s ease;
  will-change: transform;
}

.premiumTab:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.premiumTab:active {
  transform: translateY(0px) scale(.99);
}

.premiumTab.is-active {
  background: rgba(255, 255, 255, .14);
  border-color: rgba(255, 255, 255, .22);
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .12);
}

/* Stack */
.premiumStack {
  position: relative;
  min-height: 540px;
  border-radius: 26px;
  overflow: hidden;
  perspective: 1200px;
  z-index: 1;
  /* sous tabs */
  isolation: isolate;
  /* pour maîtriser les couches (blur overlay etc.) */
}

/* “Depth grid” très léger */
.premiumStack::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .22;
  background:
    linear-gradient(to bottom, rgba(255, 255, 255, .10), transparent 45%),
    radial-gradient(900px 420px at 50% 50%, rgba(255, 255, 255, .04), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ===============================
   Focus selected shot (desktop/tablet)
   - blur + dim les shots non actifs
   - voile léger derrière pour lisibilité
   - basé sur :has() (Safari/Chrome/Edge modernes)
   =============================== */

/* Voile subtil derrière la carte active */
.premiumStack::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .25);
  opacity: 0;
  transition: opacity .30s ease;
  pointer-events: none;
  z-index: 1;
}

/* Visible seulement quand une carte est active */
.premiumStack:has(.premiumShot.is-active)::after {
  opacity: 1;
}

/* Shots — maintenant hiérarchie claire */
.premiumShot {
  position: absolute;
  width: min(320px, 55%);
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;

  border-radius: 30px;
  transform-style: preserve-3d;
  transition:
    transform .62s cubic-bezier(.2, .85, .2, 1),
    opacity .32s ease,
    filter .35s ease;
  opacity: .58;
  filter: saturate(.93) contrast(1.02) brightness(.95);
  will-change: transform, opacity, filter;
  z-index: 2;
}

.premiumShot img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, .14);
  background: rgba(255, 255, 255, .04);
  box-shadow:
    0 60px 170px rgba(0, 0, 0, .55),
    inset 0 1px 0 rgba(255, 255, 255, .10);
}

/* label plus clean */
.premiumShot__label {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .14);
  background: rgba(0, 0, 0, .32);
  backdrop-filter: blur(12px);
  font-weight: 950;
  color: rgba(255, 255, 255, .92);
  letter-spacing: -.01em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08);
}

/* positions (plus “organisées”, moins brouillon) */
.premiumShot[data-feature="prevol"] {
  left: 7%;
  top: 16%;
  transform: rotateY(-16deg) rotateX(6deg) rotateZ(-6deg) translateZ(10px);
}

.premiumShot[data-feature="notam"] {
  right: 7%;
  top: 14%;
  transform: rotateY(14deg) rotateX(5deg) rotateZ(7deg) translateZ(0px);
}

.premiumShot[data-feature="meteo"] {
  left: 17%;
  bottom: 10%;
  transform: rotateY(-10deg) rotateX(4deg) rotateZ(8deg) translateZ(8px);
}

.premiumShot[data-feature="profils"] {
  right: 16%;
  bottom: 12%;
  transform: rotateY(12deg) rotateX(6deg) rotateZ(-8deg) translateZ(12px);
}

/* Active = vrai focus + depth + glow */
.premiumShot.is-active {
  opacity: 1;
  filter: saturate(1.05) contrast(1.04) brightness(1);
  transform: translateZ(80px) scale(1.03);
  z-index: 5;
  pointer-events: auto;
}

/* Inactive recule un peu pour accentuer le focus */
.premiumShot:not(.is-active) {
  z-index: 2;
}

/* Blur + dim des shots NON actifs quand un actif existe */
.premiumStack:has(.premiumShot.is-active) .premiumShot:not(.is-active) {
  filter: blur(6px) saturate(.85);
  opacity: .35;
  transform: scale(.96);
  pointer-events: auto;
  /* ✅ on peut cliquer */
}

/* halo sous le shot actif (Apple-like) */
.premiumShot.is-active::after {
  content: "";
  position: absolute;
  inset: -18%;
  border-radius: 40px;
  background: radial-gradient(closest-side, rgba(0, 212, 255, .12), transparent 70%);
  filter: blur(10px);
  opacity: .9;
  pointer-events: none;
  mix-blend-mode: screen;
}

/* Right side (cards) */
.premiumInfo {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.premiumCard {
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, .12);
  background: linear-gradient(180deg, rgba(255, 255, 255, .075), rgba(255, 255, 255, .03));
  backdrop-filter: blur(18px);
  box-shadow:
    0 44px 130px rgba(0, 0, 0, .42),
    inset 0 1px 0 rgba(255, 255, 255, .10);
  padding: 16px 16px 15px;
}

.premiumKicker {
  color: rgba(255, 255, 255, .62);
  font-weight: 950;
  text-transform: uppercase;
  letter-spacing: .02em;
  font-size: 12px;
  margin-bottom: 8px;
}

.premiumH3 {
  margin: 0 0 8px;
  font-size: 18px;
  letter-spacing: -.02em;
}

.premiumH4 {
  margin: 0 0 6px;
  font-size: 16px;
  letter-spacing: -.02em;
}

.premiumText {
  margin: 0 0 12px;
  color: rgba(255, 255, 255, .80);
  font-weight: 820;
  line-height: 1.55;
}

/* Crossfade text states (piloté JS) */
.premiumCard--feature.is-swapping .premiumH3,
.premiumCard--feature.is-swapping .premiumText,
.premiumCard--feature.is-swapping .premiumList {
  opacity: 0;
  transform: translateY(3px);
  transition: opacity .16s ease, transform .18s ease;
}

.premiumCard--feature .premiumH3,
.premiumCard--feature .premiumText,
.premiumCard--feature .premiumList {
  opacity: 1;
  transform: translateY(0);
  transition: opacity .26s ease, transform .30s cubic-bezier(.2, .8, .2, 1);
}

.premiumList {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.premiumList li {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 850;
  color: rgba(255, 255, 255, .88);
}

.premiumList li span {
  width: 10px;
  height: 10px;
  border-radius: 99px;
  background: rgba(255, 255, 255, .22);
  box-shadow: 0 0 0 5px rgba(255, 255, 255, .06);
}

.premiumUnlockRow {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.premiumLock {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(0, 0, 0, .22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .10);
  position: relative;
  flex: 0 0 auto;
}

.premiumLock:before {
  content: "";
  position: absolute;
  left: 50%;
  top: 11px;
  width: 16px;
  height: 16px;
  transform: translateX(-50%);
  border: 2px solid rgba(255, 255, 255, .75);
  border-radius: 6px;
}

.premiumLock:after {
  content: "";
  position: absolute;
  left: 50%;
  top: 3px;
  width: 12px;
  height: 10px;
  transform: translateX(-50%);
  border: 2px solid rgba(255, 255, 255, .75);
  border-bottom: none;
  border-radius: 10px 10px 0 0;
  opacity: .9;
}

.premiumSmall {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, .62);
  font-weight: 800;
  line-height: 1.5;
}

/* Reveal */
[data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .60s ease, transform .75s cubic-bezier(.2, .85, .2, 1);
}

.is-revealed[data-reveal] {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 980px) {
  .premiumLayout {
    grid-template-columns: 1fr;
  }
}

/* Mobile = carousel snap clean (sans 3D)
   -> On désactive le blur/dim (meilleure lisibilité + scroll) */
@media (max-width: 680px) {
  .premiumStack {
    min-height: unset;
    height: auto;
    padding: 12px;
    display: flex;
    gap: 12px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .premiumShot {
    position: relative;
    width: 78%;
    min-width: 260px;
    opacity: 1;
    transform: none !important;
    filter: none;
    scroll-snap-align: center;
    pointer-events: auto;
  }

  .premiumShot {
    pointer-events: auto;
  }

  .premiumShot img {
    pointer-events: none;
  }

  .premiumShot.is-active {
    transform: none !important;
    z-index: 3;
  }

  .premiumStack::after {
    display: none;
  }

  .premiumStack:has(.premiumShot.is-active) .premiumShot:not(.is-active) {
    filter: none;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }
}

/* Motion accessibility */
@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    transition: none;
    transform: none;
    opacity: 1;
  }

  .premiumShot,
  .premiumTab {
    transition: none;
  }

  .premiumShowcase::after {
    display: none;
  }

  .premiumCard--feature .premiumH3,
  .premiumCard--feature .premiumText,
  .premiumCard--feature .premiumList {
    transition: none;
  }

  /* évite blur (confort) */
  .premiumStack::after {
    display: none;
  }

  .premiumShot {
    filter: none !important;
  }
}