/* ===================================================
   base.css — Reset, utilities, WhatsApp FAB
   =================================================== */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  text-decoration: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --- WhatsApp Floating Button --- */
.whatsapp-fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  box-shadow:
    0 4px 14px rgba(37, 211, 102, 0.35),
    0 0 0 0 rgba(37, 211, 102, 0.4);
  animation: wpp-pulse 2.5s infinite;
  transition: transform 0.25s ease, box-shadow 0.25s ease, opacity 0.4s ease;
  opacity: 0;
  pointer-events: none;
}

.whatsapp-fab.fab-visible {
  opacity: 1;
  pointer-events: auto;
}

.whatsapp-fab:hover {
  transform: translateY(-3px) scale(1.08);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.5);
  animation: none;
}

.whatsapp-fab:active {
  transform: translateY(0) scale(0.96);
}

.whatsapp-fab svg {
  width: 30px;
  height: 30px;
  fill: #fff;
}

@keyframes wpp-pulse {
  0%   { box-shadow: 0 4px 14px rgba(37,211,102,.35), 0 0 0 0 rgba(37,211,102,.4); }
  70%  { box-shadow: 0 4px 14px rgba(37,211,102,.35), 0 0 0 14px rgba(37,211,102,0); }
  100% { box-shadow: 0 4px 14px rgba(37,211,102,.35), 0 0 0 0 rgba(37,211,102,0); }
}

@media (max-width: 480px) {
  .whatsapp-fab {
    bottom: 18px;
    right: 18px;
    width: 52px;
    height: 52px;
  }
  .whatsapp-fab svg {
    width: 26px;
    height: 26px;
  }
}

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-child {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* --- Hero Entrance --- */
.hero-animate {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1),
              transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-animate .hero-tag-anim {
  opacity: 0;
  transform: translateY(16px) scale(0.9);
  transition: opacity 0.6s 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-animate .hero-title-anim {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-animate .hero-desc-anim {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-animate .hero-cta-anim {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.hero-visible .hero-tag-anim,
.hero-visible .hero-title-anim,
.hero-visible .hero-desc-anim,
.hero-visible .hero-cta-anim {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* --- Parallax base --- */
[class*="-hero-bg"] {
  will-change: transform;
  transform: scale(1.05);
}

/* --- Prefers reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-child, .hero-animate,
  .hero-animate .hero-tag-anim,
  .hero-animate .hero-title-anim,
  .hero-animate .hero-desc-anim,
  .hero-animate .hero-cta-anim {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  [class*="-hero-bg"] { transform: none !important; will-change: auto; }
}