/**
 * Hero Section — премиальный минимализм + editorial typography
 */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh; /* для мобилок с адресной строкой */
  padding-top: calc(var(--topbar-height) + var(--space-4));
  overflow: hidden;
  background: var(--color-bg);
  isolation: isolate;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Canvas (word sphere) — фон */
.hero canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0.96;
  pointer-events: none;
  z-index: 0;
  transition:
    opacity var(--transition-slow),
    filter var(--transition-slow);
}

/* Subtle gradient overlay */
.heroBgGlow {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(
      900px 520px at 22% 18%,
      rgba(255, 255, 255, 0.12),
      rgba(0, 0, 0, 0) 55%
    ),
    radial-gradient(
      760px 520px at 86% 72%,
      rgba(255, 255, 255, 0.08),
      rgba(0, 0, 0, 0) 62%
    );
  z-index: 1;
  pointer-events: none;
  filter: blur(2px);
}

/* Container */
.hero .container {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero .grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
  justify-items: center;
  min-height: calc(100svh - var(--topbar-height) - var(--space-4));
  padding: clamp(var(--space-10), 6vw, var(--space-20)) 0
    clamp(var(--space-12), 8vw, var(--space-16));
  text-align: center;
}

/* Content wrapper */
.heroLeft {
  position: relative;
  z-index: 2;
  max-width: 920px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

/* Title */
.hero-title {
  margin: 0;
  font-size: clamp(38px, 5.5vw, 76px); /* Slightly reduced from h1 */
  font-weight: var(--font-weight-black);
  letter-spacing: var(--letter-spacing-widest);
  text-transform: uppercase;
  line-height: var(--line-height-tight);
  color: var(--color-text);
  text-shadow: 0 18px 60px rgba(0, 0, 0, 0.65);
}

.hero-title span {
  display: block;
  letter-spacing: var(--letter-spacing-widest);
}

/* Text card (glass container for readability) */
.hero-textCard {
  margin-top: var(--space-6);
  padding: clamp(var(--space-6), 4vw, var(--space-10));
  border-radius: var(--border-radius-xl);
  border: var(--border-width) solid var(--color-border-strong);
  background: var(--color-glass-bg-strong);
  backdrop-filter: blur(var(--blur-xl));
  -webkit-backdrop-filter: blur(var(--blur-xl));
  max-width: 680px;
  width: 100%;
}

/* Subtitle */
.hero-sub {
  margin: 0 0 var(--space-4) 0;
  max-width: 56ch;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-relaxed);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-normal);
}

/* Actions */
.heroActions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: center;
  margin-top: var(--space-4);
}

.heroActions .btn {
  font-size: var(--font-size-xs);
  padding: var(--space-3) var(--space-5);
}

/* Scroll hint */
.scrollHint {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(var(--space-4) + env(safe-area-inset-bottom));
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--border-radius-full);
  border: var(--border-width) solid var(--color-border-strong);
  background: var(--color-glass-bg);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
  color: var(--color-text-muted-strong);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
  font-size: var(--font-size-xs);
  cursor: pointer;
  z-index: 3;
  transition:
    transform var(--transition-base),
    background var(--transition-base),
    opacity var(--transition-base);
  -webkit-tap-highlight-color: transparent;
  font-family: inherit;
  border: var(--border-width) solid var(--color-border-strong);
}

.scrollHint:hover {
  transform: translateX(-50%) translateY(-2px);
  background: var(--color-glass-bg-strong);
  opacity: 1;
}

.scrollHint:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 3px;
}

.scrollHint .dot {
  width: 8px;
  height: 8px;
  border-radius: var(--border-radius-full);
  background: var(--color-text);
  opacity: 0.9;
  animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.6;
  }
  50% {
    transform: translateY(-4px);
    opacity: 1;
  }
}

/* Reveal animation */
.hero .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--animation-duration-slow) var(--animation-easing),
    transform var(--animation-duration-slow) var(--animation-easing);
}

.hero .reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger для элементов */
.hero .hero-title.reveal {
  transition-delay: 0.1s;
}

.hero .hero-sub.reveal {
  transition-delay: 0.2s;
}

.hero .heroActions.reveal {
  transition-delay: 0.3s;
}

/* Mobile optimizations (360-430px) */
@media (max-width: 430px) {
  .hero {
    padding-top: calc(var(--topbar-height) + var(--space-2));
  }

  .hero .grid {
    padding: clamp(var(--space-6), 5vw, var(--space-10)) 0
      clamp(var(--space-8), 6vw, var(--space-12));
    gap: var(--space-4);
    min-height: calc(100svh - var(--topbar-height) - var(--space-2));
  }

  .heroLeft {
    gap: var(--space-4);
    padding: 0 var(--space-3);
  }

  .hero-title {
    font-size: clamp(36px, 8vw, 44px);
    letter-spacing: clamp(0.14em, 2vw, 0.2em);
  }

  .hero-title span {
    letter-spacing: clamp(0.14em, 2vw, 0.2em);
  }

  .hero-sub {
    font-size: var(--font-size-base);
    max-width: 100%;
    padding: 0 var(--space-2);
  }

  .heroActions {
    gap: var(--space-2);
    width: 100%;
    padding: 0 var(--space-2);
  }

  .heroActions .btn {
    flex: 1 1 auto;
    min-width: 0;
    font-size: 11px;
    padding: var(--space-3) var(--space-4);
  }

  .scrollHint {
    bottom: var(--space-3);
    padding: var(--space-2) var(--space-3);
    font-size: 10px;
  }

  .scrollHint .dot {
    width: 6px;
    height: 6px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hero .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .scrollHint .dot {
    animation: none;
  }

  .hero canvas {
    transition: none;
  }
}