/* ==========================================================================
   Hero — scène cosmique : ciel, nébuleuse, mandala, skyline, cartes
   ========================================================================== */

.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: min(92vh, 58rem);
  padding: clamp(3rem, 6vh, 5.5rem) var(--space-gutter)
    calc(var(--ticker-height) + clamp(1.25rem, 3vh, 2.5rem));
  overflow: hidden;
  isolation: isolate;
}

/* --- Décor --------------------------------------------------------------- */

.hero__sky {
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}

.starfield {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__aurora {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  mix-blend-mode: screen;
  pointer-events: none;
}

.hero__aurora--a {
  top: -12%;
  right: 4%;
  width: 46vw;
  height: 46vw;
  background: radial-gradient(circle, oklch(72% 0.14 210 / 0.62), transparent 66%);
  animation: drift-a 26s var(--ease-in-out-soft) infinite;
}

.hero__aurora--b {
  bottom: -18%;
  left: -6%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, oklch(58% 0.13 290 / 0.58), transparent 68%);
  animation: drift-b 34s var(--ease-in-out-soft) infinite;
}

.hero__aurora--c {
  top: 26%;
  left: 42%;
  width: 30vw;
  height: 30vw;
  background: radial-gradient(circle, oklch(82% 0.11 196 / 0.3), transparent 70%);
  animation: drift-a 42s var(--ease-in-out-soft) infinite reverse;
}

/* Mandala de géométrie sacrée derrière le titre. */
.hero__mandala {
  position: absolute;
  top: 42%;
  left: 50%;
  z-index: -2;
  width: min(58rem, 88vw);
  aspect-ratio: 1;
  translate: -50% -50%;
  opacity: 0.5;
  pointer-events: none;
  filter: drop-shadow(0 0 30px oklch(84% 0.135 206 / 0.28));
}

/* Rubans d'énergie animés. */
.hero__ribbons {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  opacity: 0.55;
  pointer-events: none;
}

.hero__ribbons path {
  fill: none;
  stroke-linecap: round;
  stroke-dasharray: 22 260;
  animation: ribbon-flow 14s linear infinite;
}

.hero__ribbons path:nth-child(2) { animation-duration: 19s; animation-delay: -4s; }
.hero__ribbons path:nth-child(3) { animation-duration: 24s; animation-delay: -9s; }
.hero__ribbons path:nth-child(4) { animation-duration: 17s; animation-delay: -2s; }

/* Silhouette de ville en bas de la scène. */
.hero__skyline {
  position: absolute;
  inset: auto 0 0 0;
  z-index: -2;
  width: 100%;
  height: clamp(11rem, 26vh, 20rem);
  opacity: 0.85;
  pointer-events: none;
}

.hero__motes {
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  overflow: hidden;
}

.hero__mote {
  position: absolute;
  bottom: -10px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-flame-bright);
  box-shadow: 0 0 8px var(--color-flame);
  animation: float-mote var(--mote-dur, 14s) linear infinite;
  animation-delay: var(--mote-delay, 0s);
  opacity: 0;
}

/* Voile sombre pour garantir le contraste du texte. */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    oklch(13% 0.032 258 / 0.5) 0%,
    oklch(13% 0.032 258 / 0.2) 32%,
    oklch(13% 0.032 258 / 0.62) 72%,
    oklch(13% 0.032 258 / 0.94) 100%
  );
}

/* --- Contenu -------------------------------------------------------------- */

.hero__content {
  position: relative;
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  text-align: center;
}

.hero__eyebrow {
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 0.8rem + 1.5vw, 2.3rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-text);
  text-shadow: 0 2px 24px oklch(10% 0.03 258 / 0.85);
}

.hero__eyebrow em {
  color: var(--color-flame);
  text-shadow: 0 0 26px var(--color-halo);
}

.hero__pitch {
  max-width: 46rem;
  margin: 0 auto var(--space-5);
  font-family: var(--font-display);
  font-size: clamp(0.72rem, 0.62rem + 0.35vw, 0.92rem);
  font-weight: 300;
  letter-spacing: var(--tracking-wide);
  line-height: 1.65;
  text-transform: uppercase;
  color: var(--color-text-soft);
  text-shadow: 0 2px 18px oklch(10% 0.03 258 / 0.9);
}

.hero__title {
  margin: 0 auto clamp(1.25rem, 2.5vh, 2rem);
  max-width: 22ch;
  font-size: var(--text-hero);
  font-weight: 700;
  letter-spacing: -0.005em;
  text-shadow:
    0 4px 40px oklch(10% 0.03 258 / 0.9),
    0 0 90px oklch(84% 0.135 206 / 0.18);
}

.hero__title span {
  display: block;
}

.hero__title .is-flame {
  color: var(--color-flame-bright);
  text-shadow:
    0 4px 40px oklch(10% 0.03 258 / 0.9),
    0 0 42px var(--color-halo);
}

/* --- Cartes des pouvoirs --------------------------------------------------- */

.power-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.75rem, 1.2vw, 1.25rem);
  margin-bottom: clamp(1.25rem, 2.5vh, 2rem);
  text-align: left;
}

.power-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.55rem;
  padding: 1.35rem 1rem 1.05rem;
  border: var(--border-hairline);
  border-radius: var(--radius-md);
  background: linear-gradient(165deg, oklch(30% 0.04 250 / 0.72), oklch(20% 0.04 254 / 0.78));
  box-shadow: var(--shadow-panel);
  backdrop-filter: blur(12px);
  text-align: center;
  overflow: hidden;
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal) var(--ease-out-expo),
    box-shadow var(--duration-normal) var(--ease-out-expo);
}

/* Halo qui suit le curseur (variables posées par powers.js). */
.power-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    16rem circle at var(--pointer-x, 50%) var(--pointer-y, 0%),
    oklch(84% 0.135 206 / 0.16),
    transparent 62%
  );
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out-expo);
  pointer-events: none;
}

.power-card:hover,
.power-card:focus-within {
  transform: translateY(-7px);
  border-color: oklch(84% 0.135 206 / 0.55);
  box-shadow: var(--shadow-lift), var(--glow-md);
}

.power-card:hover::before,
.power-card:focus-within::before {
  opacity: 1;
}

.power-card__index {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  place-items: center;
  width: 2.15rem;
  height: 2.15rem;
  background: linear-gradient(140deg, oklch(40% 0.05 248), oklch(28% 0.045 252));
  border-right: var(--border-hairline);
  border-bottom: var(--border-hairline);
  border-bottom-right-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}

.power-card__icon {
  width: 2.6rem;
  height: 2.6rem;
  margin-top: 0.35rem;
  color: var(--color-flame);
  filter: drop-shadow(0 0 10px var(--color-halo));
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.power-card:hover .power-card__icon {
  transform: scale(1.12) rotate(-3deg);
}

.power-card__title {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  line-height: 1.2;
}

.power-card__text {
  margin: 0;
  font-size: var(--text-small);
  line-height: 1.5;
  color: var(--color-text-muted);
}

.power-card__more {
  margin-top: auto;
  padding: 0.34rem 1.05rem;
  border: var(--border-hairline);
  border-radius: var(--radius-pill);
  background: oklch(84% 0.135 206 / 0.05);
  color: var(--color-text-soft);
  font-size: var(--text-micro);
  letter-spacing: 0.04em;
  cursor: pointer;
  transition:
    background-color var(--duration-fast) var(--ease-out-expo),
    color var(--duration-fast) var(--ease-out-expo),
    border-color var(--duration-fast) var(--ease-out-expo);
}

.power-card__more:hover {
  background: var(--color-flame);
  border-color: var(--color-flame);
  color: var(--color-void);
}

/* --- Appel à l'action principal -------------------------------------------- */

.hero__cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
}

.hero__scroll-hint {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: var(--text-nano);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.hero__scroll-hint svg {
  width: 0.85rem;
  height: 0.85rem;
  animation: breathe 2.6s var(--ease-in-out-soft) infinite;
}

/* Écrans peu hauts : compacter pour que l'appel à l'action reste visible. */
@media (min-width: 62rem) and (max-height: 50rem) {
  .hero {
    min-height: auto;
  }

  .hero__eyebrow {
    margin-bottom: 0.55rem;
    font-size: clamp(1rem, 0.6rem + 1.2vw, 1.6rem);
  }

  .hero__pitch {
    margin-bottom: 0.9rem;
  }

  .hero__title {
    margin-bottom: 1rem;
    font-size: clamp(1.9rem, 0.6rem + 3.4vw, 3.9rem);
  }

  .power-grid {
    margin-bottom: 1rem;
  }

  .power-card {
    gap: 0.4rem;
    padding: 1rem 0.9rem 0.85rem;
  }

  .power-card__icon {
    width: 2.1rem;
    height: 2.1rem;
  }

  .btn--lg {
    padding: 0.85rem 2.2rem;
  }
}

@media (max-width: 62rem) {
  .hero {
    min-height: auto;
    padding-top: clamp(6rem, 12vh, 8rem);
  }

  .power-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 34rem) {
  .power-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero__mandala {
    opacity: 0.32;
  }
}