:root {
  --ink: #1b1916;
  --ink-soft: #3f3a34;
  --muted: #6a635a;
  --paper: #f3eee6;
  --paper-2: #ebe4d8;
  --card: #fbf8f2;
  --line: #d5cdc0;
  --accent: #8f3a22;
  --accent-hover: #742e1a;
  --accent-soft: #f3e4dc;
  --forest: #2f463c;
  --ok: #1f4d3a;
  --shadow: 0 1px 0 rgba(27, 25, 22, 0.04), 0 12px 28px rgba(27, 25, 22, 0.06);
  --radius: 14px;
  --max: 1080px;
  --serif: "Newsreader", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #e7ddd0 0%, transparent 55%),
    var(--paper);
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.55;
}

img {
  max-width: 100%;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-hover);
}

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(243, 238, 230, 0.86);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.brand-tag {
  color: var(--muted);
  font-size: 0.82rem;
}

nav {
  display: flex;
  gap: 0.35rem;
}

nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.95rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
}

nav a:hover,
nav a[aria-current="page"] {
  background: var(--paper-2);
  color: var(--ink);
}

.hero {
  padding: 3.2rem 0 2.2rem;
}

.kicker {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--forest);
  font-weight: 500;
  margin-bottom: 0.7rem;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.18;
  margin: 0 0 0.7rem;
}

h1 {
  font-size: clamp(2rem, 4.5vw, 3.15rem);
  max-width: 16ch;
}

.lede {
  max-width: 42rem;
  color: var(--ink-soft);
  font-size: 1.12rem;
  margin: 0 0 1.5rem;
}

.products {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-bottom: 2.5rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.25rem 1.35rem;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.card h2 {
  font-size: 1.45rem;
}

.price {
  font-family: var(--serif);
  font-size: 1.7rem;
  margin: 0.2rem 0 0.8rem;
}

.price small {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 400;
}

.card p {
  color: var(--ink-soft);
  margin: 0 0 1.1rem;
  flex: 1;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  text-decoration: none;
  background: var(--accent);
  color: #fffaf6;
  border: 0;
  border-radius: 999px;
  padding: 0.72rem 1.05rem;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
}

.btn:hover {
  background: var(--accent-hover);
  color: #fffaf6;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn-ghost:hover {
  background: var(--paper-2);
  color: var(--ink);
}

.note,
.disclaimer {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  margin: 0 0 2.5rem;
}

.note h2,
.disclaimer h2 {
  font-size: 1.2rem;
}

.note p,
.disclaimer p {
  margin: 0;
  color: var(--ink-soft);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2.2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.calc-layout {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 1.1rem;
  align-items: start;
  padding-bottom: 2rem;
}

label {
  display: block;
  font-size: 0.92rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.hint {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 400;
  margin-top: 0.25rem;
}

input[type="number"],
select {
  width: 100%;
  font: inherit;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
}

.field {
  margin-bottom: 1rem;
}

.radio-row {
  display: flex;
  gap: 0.6rem;
}

.radio-row label {
  flex: 1;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  background: #fff;
  cursor: pointer;
  font-weight: 400;
}

.radio-row input {
  margin-right: 0.4rem;
}

.radio-row label:has(input:checked) {
  border-color: var(--forest);
  background: #eef3ef;
}

.result {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
  margin-bottom: 1rem;
}

.result-box {
  background: var(--accent-soft);
  border-radius: 12px;
  padding: 0.9rem 1rem;
}

.result-box span {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.result-box strong {
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 600;
}

.meta-list {
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.meta-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--line);
}

.table-wrap {
  overflow-x: auto;
  margin: 0 0 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  text-align: left;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

th {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

tr.is-active {
  background: #eef3ef;
  font-weight: 500;
}

.cta-band {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  background: var(--forest);
  color: #f4efe6;
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem;
  margin-bottom: 2.2rem;
}

.cta-band h2,
.cta-band p {
  color: inherit;
  margin: 0;
}

.cta-band p {
  opacity: 0.88;
  margin-top: 0.25rem;
}

.cta-band .btn {
  width: auto;
  min-width: 14rem;
  background: #f4efe6;
  color: var(--forest);
}

.cta-band .btn:hover {
  background: #fff;
  color: var(--forest);
}

.fuente {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

@media (max-width: 860px) {
  .products,
  .calc-layout,
  .result {
    grid-template-columns: 1fr;
  }

  .brand-tag {
    display: none;
  }

  .cta-band {
    flex-direction: column;
    align-items: stretch;
  }

  h1 {
    max-width: none;
  }
}

/* —— Fichas de producto (SEO) —— */
.landing-layout {
  display: grid;
  grid-template-columns: 1.55fr 0.9fr;
  gap: 1.25rem;
  align-items: start;
  padding-bottom: 2.5rem;
}

.prose {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.35rem 1.4rem 1.5rem;
}

.prose h1 {
  max-width: 22ch;
  font-size: clamp(1.85rem, 3.6vw, 2.55rem);
}

.prose h2 {
  font-size: 1.28rem;
  margin-top: 1.5rem;
}

.prose p,
.prose li {
  color: var(--ink-soft);
}

.prose ul {
  padding-left: 1.15rem;
  margin: 0.4rem 0 1rem;
}

.prose li {
  margin-bottom: 0.35rem;
}

.buy-box {
  position: sticky;
  top: 4.5rem;
}

.buy-box .btn {
  margin-top: 0.35rem;
}

.buy-box .btn + .btn,
.buy-box .btn + a.btn-ghost {
  margin-top: 0.55rem;
}

.buy-box .meta-line {
  margin: 0.55rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.related {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.related a {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

@media (max-width: 860px) {
  .landing-layout {
    grid-template-columns: 1fr;
  }

  .buy-box {
    position: static;
  }
}