:root {
  --verde: #aed76a;
  --verde-oscuro: #5e9a2b;
  --hoja: #7fb840;
  --marco: #f2f4ee;
  --fondo: #0d0d0d;
  --texto: #f5f5f5;
}

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

body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--fondo);
  color: var(--texto);
  line-height: 1.5;
}

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


.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: #151515;
  position: sticky;
  top: 0;
  z-index: 10;
}
.header h1 { color: var(--verde); font-size: 1.4rem; }
.header nav a { margin-left: 16px; }
.header nav a:hover { color: var(--verde); }

.hero {
  text-align: center;
  padding: 64px 20px 40px;
}
.hero h2 { font-size: clamp(1.8rem, 5vw, 3rem); color: var(--verde); }
.hero p { margin: 12px 0 24px; opacity: .85; }

.btn {
  display: inline-block;
  background: var(--verde);
  color: #1c2b0a;
  font-weight: 700;
  padding: 10px 24px;
  border-radius: 999px;
  transition: transform .2s, background .2s;
}
.btn:hover { transform: scale(1.05); background: #c4e68a; }


.productos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}
.card { text-align: center; }
.card h3 { margin-top: 16px; font-size: 1.3rem; color: var(--verde); }
.card p { margin: 6px 0 14px; opacity: .8; }

.marco {
  position: relative;
  width: min(280px, 80vw);
  aspect-ratio: 1;
  margin: 0 auto;
  border-radius: 50%;
  padding: 14px;
  background: var(--marco);
  box-shadow: 0 0 12px rgba(255, 255, 255, .25);
}
.marco::before {               /* borde punteado */
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  border: 2px dashed #9bb38a;
}
.marco__interior {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.marco--verde  .marco__interior { background: var(--verde); }
.marco--blanco .marco__interior { background: #fff; }
.marco__interior img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.hojas {
  position: absolute;
  width: 45%;
  aspect-ratio: 1;
  background: url("data:image/svg+xml;utf8,\
<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'>\
<g fill='%237fb840' stroke='%235e9a2b' stroke-width='1'>\
<path d='M5 60 Q20 30 45 35 Q35 60 5 60Z'/>\
<path d='M25 45 Q45 15 70 22 Q60 48 25 45Z'/>\
<path d='M50 32 Q70 5 95 12 Q85 38 50 32Z'/>\
<path d='M10 75 Q35 55 55 62 Q40 80 10 75Z'/>\
</g></svg>") no-repeat center / contain;
}
.hojas--arriba { top: -6%; right: -8%; transform: rotate(10deg); }
.hojas--abajo  { bottom: -6%; left: -8%; transform: rotate(190deg); }

/* FOOTER */
.footer {
  text-align: center;
  padding: 40px 20px;
  background: #151515;
}
.footer h2 { color: var(--verde); margin-bottom: 8px; }
.footer a { color: var(--verde); text-decoration: underline; }
.footer small { display: block; margin-top: 16px; opacity: .6; }

@media (max-width: 520px) {
  .header { flex-direction: column; gap: 8px; }
}