* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: system-ui, Arial, sans-serif;
}

img {
  max-width: 100%;
  display: block;
}

.app { padding: 16px; }

:root { --gap: 12px; }
.full {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.card {
  padding: 24px;
  border: 1px solid #ddd;
  border-radius: 12px;
}
.nav {
  display: flex;
  align-items: center;
  gap: var(--gap);
  padding: 12px 16px;
  border-bottom: 1px solid #eee;
}

.menu {
  display: flex;
  gap: var(--gap);
  justify-content: center;
  flex: 1;
}

.cta {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #ddd;
  background: #fff;
}
.cards {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap);
}

.cards .card {
  flex: 1 1 220px;
  padding: 20px;
  border: 1px solid #eee;
  border-radius: 10px;
  text-align: center;
}
.layout {
  display: flex;
  gap: var(--gap);
  min-height: 70vh;
}

.sidebar {
  width: 240px;
  border: 1px solid #eee;
  border-radius: 12px;
  padding: 12px;
}

.content {
  flex: 1;
  border: 1px solid #eee;
  border-radius: 12px;
  padding: 16px;
}
.pricing {
  display: flex;
  gap: 24px;
}

.price {
  font-size: 18px;
  display: flex;
  gap: 6px;
  align-items: baseline;
}

.amount {
  font-size: 48px;
  font-weight: 700;
}
.grid3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.grid3 > * {
  border: 1px solid #eee;
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}
.page {
  display: grid;
  grid-template-columns: 240px 1fr;
  grid-template-rows: auto 1fr auto;
  gap: var(--gap);
  min-height: 70vh;

  grid-template-areas:
    "hdr hdr"
    "sbr mn"
    "ftr ftr";
}

.hdr { grid-area: hdr; }
.sbr { grid-area: sbr; }
.mn  { grid-area: mn; }
.ftr { grid-area: ftr; }

.page > * {
  border: 1px solid #eee;
  border-radius: 10px;
  padding: 12px;
}
.auto {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.auto .card {
  padding: 20px;
  border: 1px solid #eee;
  border-radius: 12px;
  text-align: center;
}
.galeria {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.galeria img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 12px;
}
.hero {
  display: grid;
  place-items: center;
  min-height: 40vh;
}

.hero > * {
  grid-area: 1 / 1;
}

.hero h1 {
  background: rgba(0,0,0,.45);
  color: #fff;
  padding: 16px 24px;
  border-radius: 12px;
}
.mf {
  display: grid;
  gap: var(--gap);
  grid-template-columns: 1fr;   /* móvil primero */
}

.mf > * {
  border: 1px solid #eee;
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}

@media (min-width: 768px) {
  .mf {
    grid-template-columns: repeat(3, 1fr);
  }
}
.rnav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid #eee;
}

.menu nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px 0;
}

/* Desktop */
@media (min-width: 768px) {

  .menu > summary {
    display: none;
  }

  .menu nav {
    flex-direction: row;
    gap: 16px;
  }

  .menu[open] > nav,
  .menu > nav {
    display: flex;
  }
}
.title {
  font-size: clamp(1.5rem, 2.5vw + 1rem, 3rem);
  line-height: 1.15;
}
.rf {
  display: grid;
  gap: var(--gap);
  grid-template-columns: 1fr;
  max-width: 720px;
}

.rf label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rf input {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 8px;
}

.rf button {
  padding: 12px;
  border: 0;
  border-radius: 10px;
  background: #111;
  color: #fff;
}

/* Desktop */
@media (min-width: 640px) {
  .rf {
    grid-template-columns: 1fr 1fr;
  }

  .rf button {
    grid-column: 1 / -1;
  }
}