/* ===== Base ===== */
:root {
  --bg-color: #ffffff;
}

/* ===== Hide scrollbar (mobile carousels) ===== */
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.no-scrollbar::-webkit-scrollbar {
  display: none;
}

html,
body {
  background-color: var(--bg-color);
  scroll-behavior: smooth;
}

/* ===== Mystical watercolor blobs (CTA) ===== */
.watercolor-float {
  animation: watercolor-drift 16s ease-in-out infinite alternate;
}
.watercolor-float-slow {
  animation: watercolor-drift 22s ease-in-out infinite alternate-reverse;
}

@keyframes watercolor-drift {
  0% {
    transform: translate(0, 0) scale(1);
    opacity: 0.85;
  }
  50% {
    transform: translate(30px, -20px) scale(1.12);
    opacity: 1;
  }
  100% {
    transform: translate(-20px, 25px) scale(0.95);
    opacity: 0.8;
  }
}

@media (prefers-reduced-motion: reduce) {
  .watercolor-float,
  .watercolor-float-slow {
    animation: none;
  }
}

/* ===== Tech Grid Background with Animation ===== */
.bg-grid {
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, rgba(37, 99, 235, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
  mask-image: linear-gradient(to bottom, black 20%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 20%, transparent 100%);
  animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
  0% { transform: translateY(0); }
  100% { transform: translateY(40px); }
}

/* ===== Header scrolled state ===== */
#header.scrolled {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: rgba(0, 0, 0, 0.05);
}

/* ===== Premium Reveal on scroll (Blur + Translate) ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  filter: blur(8px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1),
              transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1),
              filter 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform, filter;
}

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

/* Stagger delays for children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  filter: blur(5px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1),
              transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1),
              filter 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal-stagger.is-visible > * {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0.1s; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.2s; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.3s; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.4s; }

.chat-bubble {
  opacity: 0;
  transform: translateY(10px) scale(0.98);
  transform-origin: bottom left;
  transition: all 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.chat-bubble.right {
  transform-origin: bottom right;
}
.chat-bubble.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ===== Typography Tweaks ===== */
h1, h2, h3, h4, h5, h6 {
  letter-spacing: -0.04em;
}

/* Animated Gradient Text */
.text-gradient-animate {
  background: linear-gradient(to right, #1e3a8a, #3b82f6, #1e3a8a);
  background-size: 200% auto;
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  animation: shine 4s linear infinite;
}

@keyframes shine {
  to {
    background-position: 200% center;
  }
}

/* Custom selection */
::selection {
  background-color: #2563eb;
  color: #ffffff;
}
::-moz-selection {
  background-color: #2563eb;
  color: #ffffff;
}