/* HugoAssist marketing site — complementos a Tailwind */

html {
  scroll-behavior: smooth;
}

::selection {
  background: rgba(13, 148, 136, 0.25);
}

/* Nav blur on scroll */
.site-nav.is-scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(28, 25, 23, 0.06);
}

.dark .site-nav.is-scrolled {
  background: rgba(12, 10, 9, 0.88);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

/* Hero mesh */
.hero-mesh {
  background:
    radial-gradient(ellipse 80% 60% at 20% -10%, rgba(20, 184, 166, 0.22), transparent 55%),
    radial-gradient(ellipse 60% 50% at 90% 10%, rgba(15, 118, 110, 0.14), transparent 50%),
    linear-gradient(180deg, #f0fdfa 0%, #fafaf9 42%, #fafaf9 100%);
}

.dark .hero-mesh {
  background:
    radial-gradient(ellipse 80% 60% at 20% -10%, rgba(20, 184, 166, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 50% at 90% 10%, rgba(15, 118, 110, 0.08), transparent 50%),
    linear-gradient(180deg, #0c0a09 0%, #0c0a09 100%);
}

/* Chat mockup */
.chat-window {
  box-shadow:
    0 25px 50px -12px rgba(28, 25, 23, 0.18),
    0 0 0 1px rgba(28, 25, 23, 0.04);
}

.dark .chat-window {
  box-shadow:
    0 25px 50px -12px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.06);
}

.chat-bubble-in {
  animation: bubble-in 0.5s ease both;
}

.chat-bubble-out {
  animation: bubble-out 0.5s ease both;
}

.chat-bubble-in:nth-child(2) { animation-delay: 0.4s; }
.chat-bubble-out:nth-child(3) { animation-delay: 0.9s; }
.chat-bubble-in:nth-child(4) { animation-delay: 1.5s; }

@keyframes bubble-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

@keyframes bubble-out {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

/* Feature cards */
.feature-card {
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px -16px rgba(13, 148, 136, 0.25);
  border-color: rgba(20, 184, 166, 0.35);
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Step connector (desktop) */
@media (min-width: 768px) {
  .steps-line::before {
    content: "";
    position: absolute;
    top: 2rem;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #99f6e4, #99f6e4, transparent);
    z-index: 0;
  }

  .dark .steps-line::before {
    background: linear-gradient(90deg, transparent, #115e59, #115e59, transparent);
  }
}

/* Mobile menu */
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.mobile-menu.is-open {
  max-height: 20rem;
}