/* ============================================================
   ALPHA DETACHMENT — ANIMATIONS
   Scroll Reveal, Hero Fade-in, Micro-interactions
   ============================================================ */

/* --- HERO FADE-IN --- */
@keyframes heroFadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroLineExpand {
  from {
    width: 0;
  }
  to {
    width: 60px;
  }
}

.hero__label {
  opacity: 0;
  animation: heroFadeInUp 0.8s ease forwards;
  animation-delay: 0.3s;
}

.hero__title {
  opacity: 0;
  animation: heroFadeInUp 0.8s ease forwards;
  animation-delay: 0.5s;
}

.hero__subtitle {
  opacity: 0;
  animation: heroFadeInUp 0.8s ease forwards;
  animation-delay: 0.8s;
}

.hero__mission {
  opacity: 0;
  animation: heroFadeInUp 0.8s ease forwards;
  animation-delay: 1.0s;
}

.hero__cta {
  opacity: 0;
  animation: heroFadeInUp 0.8s ease forwards;
  animation-delay: 1.3s;
}


/* --- SCROLL REVEAL --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-smooth),
              transform var(--transition-smooth);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for grid items */
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }
.reveal[data-delay="6"] { transition-delay: 0.6s; }
.reveal[data-delay="7"] { transition-delay: 0.7s; }
.reveal[data-delay="8"] { transition-delay: 0.8s; }


/* --- SECTION HEADER LINE ANIMATION --- */
.section__header h2::after {
  width: 0;
  transition: width 0.6s ease;
}

.section__header.is-visible h2::after,
.reveal.is-visible .section__header h2::after {
  width: 60px;
}


/* --- SERVICE CARD HOVER --- */
.service-card {
  transition: transform var(--transition-base),
              border-color var(--transition-base),
              box-shadow var(--transition-base);
}

.service-card:hover {
  box-shadow: 0 8px 32px rgba(194, 32, 53, 0.12);
}

.service-card__link .btn--ghost::after {
  transition: transform var(--transition-fast);
}

.service-card:hover .btn--ghost {
  color: var(--color-white-2);
}


/* --- TRUST ITEM HOVER --- */
.trust-item {
  transition: background-color var(--transition-base),
              border-color var(--transition-base);
}

.trust-item:hover {
  background-color: rgba(194, 32, 53, 0.08);
}


/* --- BUTTON MICRO-INTERACTIONS --- */
.btn {
  position: relative;
  overflow: hidden;
}

.btn--primary::after,
.btn--outline::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease;
}

.btn--primary:active::after,
.btn--outline:active::after {
  width: 300px;
  height: 300px;
}


/* --- HEADER TRANSITION --- */
.header {
  transition: background-color var(--transition-base),
              padding var(--transition-base),
              box-shadow var(--transition-base);
}


/* --- MOBILE MENU ITEMS STAGGER --- */
.mobile-nav.is-open .mobile-nav__item {
  opacity: 0;
  animation: heroFadeInUp 0.5s ease forwards;
}

.mobile-nav.is-open .mobile-nav__item:nth-child(1) { animation-delay: 0.1s; }
.mobile-nav.is-open .mobile-nav__item:nth-child(2) { animation-delay: 0.15s; }
.mobile-nav.is-open .mobile-nav__item:nth-child(3) { animation-delay: 0.2s; }
.mobile-nav.is-open .mobile-nav__item:nth-child(4) { animation-delay: 0.25s; }
.mobile-nav.is-open .mobile-nav__item:nth-child(5) { animation-delay: 0.3s; }
.mobile-nav.is-open .mobile-nav__item:nth-child(6) { animation-delay: 0.35s; }


/* --- PAGE LOAD --- */
@keyframes pageLoad {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

body {
  animation: pageLoad 0.3s ease;
}


/* --- ACCENT LINE PULSE (Subtle) --- */
@keyframes subtlePulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.hero__mission {
  border-left-color: var(--color-accent-red);
}


/* --- REDUCED MOTION --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}