* { box-sizing: border-box; }
html, body { height: 100%; }

body{
  margin: 0;
  font-family: "Georgia", serif;
  background: #fff;
  color: #111;
  overflow: hidden; 
}

/* ============================= */
/* HEADER */
/* ============================= */
.site-header{
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  background: #fff;
  position: relative;
  z-index: 50;
}

.brand{
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: inherit;
}

.brand__logo{
  height: 18px;
  width: auto;
  display: block;
}

.nav{
  display: flex;
  gap: 24px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav a{
  text-decoration: none;
  color: #222;
  opacity: 0.8;
}
.nav a:hover{ opacity: 1; }

/* ============================= */
/* mosaico */
/* ============================= */
.home{
  height: calc(100vh - 70px);
  padding: 0 60px;
  display: flex;
}

.mosaic{
  width: 100%;
  flex: 1;
  position: relative;
}


.mosaic__headline{
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 38px;
  font-weight: 400;
  color: #111;
  text-align: center;
  pointer-events: none;
  z-index: 20;
  white-space: nowrap;
  opacity: 0;
  letter-spacing: .22em;
  filter: blur(12px);
}

.mosaic__headline.is-in{
  animation: headlineSplit 1200ms cubic-bezier(.16,.95,.2,1) forwards;
}

@keyframes headlineSplit{
  0%{
    opacity: 0;
    transform: translate(-50%, -50%) scale(.98);
    letter-spacing: .28em;
    filter: blur(16px);
  }
  55%{ opacity: 1; }
  75%{
    letter-spacing: .05em;
    filter: blur(0px);
    transform: translate(-50%, -50%) scale(1.02);
  }
  100%{
    opacity: 1;
    letter-spacing: .02em;
    filter: blur(0px);
    transform: translate(-50%, -50%) scale(1);
  }
}

.mosaic__headline.dim{
  opacity: .72;
  transition: opacity 450ms ease;
}

.mosaic__headline.is-out{
  opacity: 0;
  transition: opacity 450ms ease;
}


.mosaic__viewport{
  position: relative;
  width: 100%;
  height: calc(100vh - 70px);
  overflow: hidden;

  cursor: grab;
  user-select: none;
  touch-action: none;
}

.mosaic__viewport.is-grabbing{ cursor: grabbing; }


.mosaic__viewport::before{
  content:"";
  position:absolute;
  inset:-1px;
  pointer-events:none;
  z-index: 5;
  background:
    radial-gradient(120% 90% at 50% 40%, rgba(255,255,255,0) 55%, rgba(0,0,0,.06) 100%);
  opacity: .75;
}


.mosaic__content{
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  will-change: transform;
  transform: translate3d(0,0,0);
  transform-origin: 50% 0%; 
}

/* ============================= */
/* GRID MASONRY */
/* ============================= */
.mosaic__grid{
  column-count: var(--cols, 6);
  column-gap: 28px;

  padding: 24px 14px 24px;
  width: 100%;
}


.tile{
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  page-break-inside: avoid;

  margin: 0 0 24px;

  overflow: hidden;
  opacity: 0;
  transform: translateZ(0);
  backface-visibility: hidden;

  position: relative;
  z-index: 1;
  transition: opacity 320ms ease;
}


.tile:hover{ z-index: 10; }

.mosaic-ready .tile{ opacity: 1; }


.tile img{
  width: 100%;
  display: block;
  object-fit: cover;

  filter: grayscale(100%);
  opacity: 0.5;


  --mx: 0px;
  --my: 0px;
  --hScale: 1;
  --cinX: 0px;
  --cinY: 0px;

  transform: translate3d(calc(var(--mx) + var(--cinX)), calc(var(--my) + var(--cinY)), 0) scale(var(--hScale));
  transition:
    transform 520ms cubic-bezier(.16,.95,.2,1),
    filter 520ms cubic-bezier(.16,.95,.2,1),
    opacity 520ms cubic-bezier(.16,.95,.2,1);
  will-change: transform, filter, opacity;
}

/* Overlay  */
.tile::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background: radial-gradient(120% 120% at 50% 30%, rgba(255,255,255,.10), rgba(0,0,0,0));
  opacity: 0;
  transition: opacity 520ms cubic-bezier(.16,.95,.2,1);
}

/* Hover reveal + zoom */
.tile:hover img{
  --hScale: 1.06;
  filter: grayscale(60%);
  opacity: 0.96;
}

.tile:hover::after{ opacity: 1; }


.mosaic__grid.is-hovering .tile{ opacity: 0.86; }
.mosaic__grid.is-hovering .tile:hover{ opacity: 1; }

/* ============================= */
/* OVERLAY FLY */
/* ============================= */
.fly-layer{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 15;
}

.fly-tile{
  position: absolute;
  overflow: hidden;
}

.fly-tile img{
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  filter: grayscale(100%);
  opacity: 0.5;
}

/* ============================= */
/*  FLOAT DEL RECUADRO  */
/* ============================= */
.tile__float{
  will-change: transform;
  transform: translate3d(0,0,0);
  animation: tileDrift var(--floatDur, 8.5s) ease-in-out infinite;
  animation-delay: var(--floatDelay, 0s);
}

@keyframes tileDrift{
  0%   { transform: translate3d(0, 0, 0) rotate(0deg); }
  35%  { transform: translate3d(var(--floatX, 10px), var(--floatY, -10px), 0) rotate(var(--floatR, 0.4deg)); }
  70%  { transform: translate3d(calc(var(--floatX, 10px) * -0.55), calc(var(--floatY, -10px) * -0.35), 0) rotate(calc(var(--floatR, 0.4deg) * -0.6)); }
  100% { transform: translate3d(0, 0, 0) rotate(0deg); }
}

/* ============================= */
/* RESPONSIVE */
/* ============================= */
@media (max-width: 1400px){
  .mosaic__grid{ column-gap: 22px; padding: 22px 11px 22px; }
  .tile{ margin-bottom: 20px; }
}

@media (max-width: 1100px){
  .mosaic__grid{ column-gap: 18px; padding: 20px 9px 20px; }
  .tile{ margin-bottom: 18px; }
}

@media (max-width: 800px){
  .home{ padding: 0 30px; }

  .mosaic__grid{ column-gap: 14px; padding: 18px 7px 18px; }
  .tile{ margin-bottom: 14px; }

  .mosaic__headline{
    font-size: 28px;
    white-space: normal;
    padding: 0 10px;
  }
}

/* ============================= */
/* Accesibilidad / UX */
/* ============================= */
@media (prefers-reduced-motion: reduce){
  .tile__float{ animation: none; }
  .mosaic__headline.is-in{ animation: none; opacity: 1; filter: none; }
  .mosaic__viewport::before{ opacity: 0; }
}