/* Base */
* { box-sizing: border-box; }
html, body { height: 100%; }
body{
  margin: 0;
  font-family: Georgia, "Times New Roman", Times, serif;
  color: #fff;
  background: #0b7f2d;
}

/* Fondo “brillitos” (sin imágenes externas) */
body::before{
  content:"";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .55;
  background-image:
    radial-gradient(circle, rgba(255,255,170,.9) 0 1px, transparent 2px),
    radial-gradient(circle, rgba(255,255,255,.8) 0 1px, transparent 2px),
    radial-gradient(circle, rgba(255,255,200,.6) 0 1px, transparent 2px);
  background-size: 120px 120px, 180px 180px, 260px 260px;
  background-position: 0 0, 40px 70px, 120px 30px;
}

/* Layout */
.wrap{
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 18px 60px;
}

/* Títulos estilo “retro” */
.hero{
  text-align: center;
  padding-top: 6px;
}
h1{
  margin: 12px 0 6px;
  font-size: clamp(44px, 6vw, 84px);
  font-weight: 700;
  letter-spacing: .5px;
  text-shadow: 0 2px 0 rgba(0,0,0,.25);
}
h2{
  margin: 0 0 18px;
  font-size: clamp(20px, 3vw, 34px);
  font-weight: 400;
  color: #ffe56a;
  text-shadow: 0 2px 0 rgba(0,0,0,.25);
}

/* Foto principal con marco */
.main-photo{
  margin: 14px auto 18px;
  width: min(360px, 88vw);
  border: 7px solid #ffe56a;
  padding: 8px;
  background: rgba(0,0,0,.18);
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.main-photo img{
  display:block;
  width: 100%;
  height: auto;
}

/* 3 mini fotos */
.thumbs{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  max-width: 720px;
  margin: 0 auto 26px;
  padding: 0 6px;
}
.thumbs img{
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border: 5px solid #fff;
  box-shadow: 0 8px 18px rgba(0,0,0,.25);
}

/* Caja de texto tipo carta */
.letter{
  background: #fff;
  color: #111;
  border: 6px solid #0a5f27;
  padding: 22px 20px;
  max-width: 860px;
  margin: 0 auto 18px;
  box-shadow: 0 12px 30px rgba(0,0,0,.25);
}
.letter p{
  margin: 12px 0;
  line-height: 1.5;
  font-size: 18px;
}
.letter .intro{
  font-style: italic;
}
.sign{
  margin-top: 18px;
  text-align: right;
  font-style: italic;
}
.sign span{
  font-weight: 700;
}

/* Botones */
.buttons{
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}
.btn{
  display: inline-block;
  padding: 10px 14px;
  border: 2px solid #0a5f27;
  background: #ffe56a;
  color: #111;
  text-decoration: none;
  font-weight: 700;
}
.btn:hover{ filter: brightness(0.95); }
.btn.secondary{
  background: #e7e7e7;
}

/* Sección ayuda */
.help{
  max-width: 860px;
  margin: 0 auto;
  padding: 14px 18px;
  background: rgba(0,0,0,.12);
  border: 2px solid rgba(255,255,255,.35);
}
.help h3{
  margin: 10px 0 8px;
  font-size: 22px;
  color: #ffe56a;
  font-weight: 700;
}
.help ul{
  margin: 10px 0 10px 20px;
  padding: 0;
}
.help li{ margin: 8px 0; }
.tiny{
  margin-top: 12px;
  font-size: 13px;
  opacity: .9;
}

/* Footer */
.foot{
  text-align: center;
  margin-top: 22px;
  opacity: .9;
  font-size: 14px;
}

/* Responsive */
@media (max-width: 640px){
  .thumbs{ grid-template-columns: 1fr; max-width: 360px; }
}