/* ==========================================================================
   Animaciones
   Todo lo declarativo vive aqui; animations.js solo cambia clases y variables.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Keyframes
   -------------------------------------------------------------------------- */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes drawer-in {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 currentColor; opacity: 1; }
  70%  { box-shadow: 0 0 0 10px transparent; opacity: 0.85; }
  100% { box-shadow: 0 0 0 0 transparent; opacity: 1; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes caret-blink {
  0%, 45%   { opacity: 1; }
  50%, 100% { opacity: 0; }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@keyframes float-soft {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

@keyframes curtain-out {
  to { transform: translateY(-100%); }
}

@keyframes logo-pop {
  0%   { opacity: 0; transform: scale(0.9); letter-spacing: 0.4em; }
  55%  { opacity: 1; transform: scale(1); letter-spacing: 0.14em; }
  100% { opacity: 1; transform: scale(1); letter-spacing: 0.14em; }
}

@keyframes underline-sweep {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* --------------------------------------------------------------------------
   Cortina de carga
   -------------------------------------------------------------------------- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: grid;
  place-items: center;
  background: var(--band-bg);
  color: #ffffff;
}

.preloader__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  letter-spacing: 0.14em;
  animation: logo-pop 900ms var(--ease-out) forwards;
}

.preloader__bar {
  position: absolute;
  bottom: 22%;
  left: 50%;
  transform: translateX(-50%);
  width: min(220px, 50vw);
  height: 2px;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 2px;
  overflow: hidden;
}

.preloader__bar::after {
  content: "";
  display: block;
  height: 100%;
  width: 40%;
  border-radius: inherit;
  background: var(--navy-300);
  animation: marquee 1.1s var(--ease-in-out) infinite alternate;
}

.preloader.is-done {
  animation: curtain-out 720ms var(--ease-out) forwards;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   Reveal al hacer scroll
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

[data-reveal="left"]  { transform: translateX(-32px); }
[data-reveal="right"] { transform: translateX(32px); }
[data-reveal="scale"] { transform: scale(0.94); }
[data-reveal="blur"]  { filter: blur(10px); transform: translateY(14px); }

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
  filter: none;
}

/* --------------------------------------------------------------------------
   Titulos con subrayado que se dibuja
   -------------------------------------------------------------------------- */
.section-head__title {
  position: relative;
  display: inline-block;
  padding-bottom: 0.35rem;
}

.section-head__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand-accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
}

.section-head.is-visible .section-head__title::after {
  animation: underline-sweep 900ms var(--ease-out) 180ms forwards;
}

/* --------------------------------------------------------------------------
   Titular del hero letra a letra
   -------------------------------------------------------------------------- */
.split-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.5em) rotateX(-40deg);
  transform-origin: bottom center;
  animation: char-in 620ms var(--ease-out) forwards;
  animation-delay: var(--char-delay, 0ms);
}

@keyframes char-in {
  to { opacity: 1; transform: translateY(0) rotateX(0); }
}

/* --------------------------------------------------------------------------
   Tilt 3D en tarjetas
   -------------------------------------------------------------------------- */
[data-tilt] {
  transform: perspective(900px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg))
    translateZ(0);
  transition: transform var(--dur-mid) var(--ease-out);
}

[data-tilt].is-tilting {
  transition: transform 90ms linear;
}

/* --------------------------------------------------------------------------
   Botones magneticos
   -------------------------------------------------------------------------- */
[data-magnetic] {
  transform: translate(var(--magnet-x, 0px), var(--magnet-y, 0px));
  transition: transform var(--dur-mid) var(--ease-spring);
}

[data-magnetic].is-magnetized {
  transition: transform 90ms linear;
}

/* --------------------------------------------------------------------------
   Flotacion suave
   -------------------------------------------------------------------------- */
[data-float] {
  animation: float-soft 7s var(--ease-in-out) infinite;
}

/* --------------------------------------------------------------------------
   Accesibilidad: si el sistema pide menos movimiento, se desactiva todo
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-reveal],
  .split-char {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }

  .preloader {
    display: none;
  }

  .cursor-dot,
  .cursor-ring {
    display: none;
  }

  .marquee__track {
    animation: none;
  }
}