:root {
  /* ---- Paleta de marca (unica para los 4 sitios) ---- */
  --bg: #e9eae6;
  --surface: #fbf8f5;
  --sand: #fae3c6;
  --ink: #4c4c4b;
  --muted: #6b6660;
  --muted-inverse: #c8bdb0;
  --accent: #31572c;
  --accent-dark: #24421f;
  --accent-soft: rgba(49, 87, 44, 0.1);
  --line: rgba(76, 76, 75, 0.16);
  --line-strong: rgba(49, 87, 44, 0.4);
  --line-inverse: rgba(238, 230, 221, 0.2);
  --on-accent: #eee6dd;
  --ph-a: #dde7d8;
  --ph-b: #efefeb;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  font-weight: 300;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 1.05rem;
}

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

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

::selection {
  background: var(--accent);
  color: var(--surface);
}

/* ---------- Utilities ---------- */
.wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.kicker {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.kicker::before {
  content: "";
  width: 2.2rem;
  height: 1px;
  background: var(--accent);
}

.kicker.center {
  justify-content: center;
}

.kicker.center::after {
  content: "";
  width: 2.2rem;
  height: 1px;
  background: var(--accent);
}

.display {
  font-family: var(--serif);
  font-weight: 330;
  font-size: clamp(2.6rem, 7vw, 5.6rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.display em {
  font-style: italic;
  font-weight: 280;
  color: var(--accent);
}

.huge-number {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(4rem, 12vw, 9rem);
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1px rgba(49, 87, 44, 0.45);
}

.lede {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--muted);
  max-width: 46ch;
}

.rule {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

section {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(238, 230, 221, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.brand img {
  height: 40px;
  width: auto;
}

.brand-name {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.12rem;
  line-height: 1.05;
}

.brand-name small {
  display: block;
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--muted);
}

.main-nav ul {
  display: flex;
  gap: 1.6rem;
  list-style: none;
}

.main-nav a {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 0.2rem;
  border-bottom: 1px solid transparent;
  transition: color 0.2s;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 1.1rem;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  color: var(--ink);
}

/* ---------- Masthead / hero ---------- */
.masthead {
  padding: 5.5rem 0 3.5rem;
  border-bottom: 1px solid var(--line);
}

.masthead .kicker {
  margin-bottom: 1.6rem;
}

.masthead .display {
  max-width: 18ch;
}

.masthead .lede {
  margin-top: 2.2rem;
}

.masthead-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  margin-top: 3rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}

.masthead-meta .meta-item {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.masthead-meta .meta-item strong {
  display: block;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.35rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
  margin-top: 0.15rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.85rem 1.9rem;
  border: 1px solid var(--ink);
  border-radius: 2px;
  transition: background 0.2s, color 0.2s;
}

.btn-solid {
  background: var(--ink);
  color: var(--bg);
}

.btn-solid:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.btn-line {
  color: var(--ink);
}

.btn-line:hover {
  background: var(--ink);
  color: var(--bg);
}

/* ---------- Feature split ---------- */
.feature {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.feature .kicker {
  margin-bottom: 1.2rem;
}

.feature h2 {
  font-family: var(--serif);
  font-weight: 340;
  font-size: clamp(2rem, 4.4vw, 3.3rem);
  line-height: 1.05;
  margin-bottom: 1.4rem;
}

.feature h2 em {
  font-style: italic;
  color: var(--accent);
}

.feature p {
  color: var(--muted);
  max-width: 50ch;
  margin-bottom: 1rem;
}

/* ---------- Equipment placeholder cards ---------- */
.equip-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
}

.equip {
  background: var(--surface);
  border: 1px solid var(--line);
}

.equip-visual {
  aspect-ratio: 4 / 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
  color: var(--accent);
  position: relative;
  overflow: hidden;
}

.equip-visual svg {
  width: 46%;
  max-width: 120px;
  height: auto;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.25));
}

.equip-visual .equip-tag {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.25rem 0.55rem;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--accent-dark);
}

.equip-visual.eq-co2 {
  background: linear-gradient(135deg, var(--ph-a), var(--ph-b));
}

.equip-visual.eq-endo {
  background: linear-gradient(160deg, var(--ph-b), var(--ph-a));
}

.equip-visual.eq-photo {
  background: linear-gradient(120deg, var(--ph-a), var(--ph-b));
}

.equip-visual.eq-vascular {
  background: linear-gradient(200deg, var(--ph-b), var(--ph-a));
}

.equip figcaption {
  padding: 1.1rem 1.2rem 1.2rem;
  border-top: 1px solid var(--line);
}

.equip figcaption h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.25rem;
  margin-bottom: 0.2rem;
}

.equip figcaption p {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---------- Marquee ---------- */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 1rem 0;
  background: var(--surface);
}

.marquee-track {
  display: flex;
  gap: 3rem;
  white-space: nowrap;
  width: max-content;
  animation: scroll 30s linear infinite;
}

.marquee-track span {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--accent);
}

@keyframes scroll {
  to {
    transform: translateX(-50%);
  }
}

/* ---------- Editorial numbered list ---------- */
.index-list {
  list-style: none;
  border-top: 1px solid var(--line);
}

.index-list li {
  display: grid;
  grid-template-columns: 5rem 1fr auto;
  align-items: baseline;
  gap: 1.5rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s;
}

.index-list li:hover {
  background: rgba(49, 87, 44, 0.05);
}

.index-list .n {
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--accent);
}

.index-list h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.index-list .tags {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: right;
  max-width: 22ch;
}

/* ---------- Tratamiento rows ---------- */
.tratamiento {
  display: grid;
  grid-template-columns: 4rem 1fr minmax(220px, 0.8fr);
  gap: 2rem;
  padding: 2.2rem 0;
  border-top: 1px solid var(--line);
  align-items: center;
}

.tratamiento:last-child {
  border-bottom: 1px solid var(--line);
}

.tratamiento .n {
  font-family: var(--serif);
  font-size: 1.4rem;
  color: var(--accent);
}

.tratamiento h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.8rem;
}

.tratamiento ul {
  padding-left: 1.1rem;
  color: var(--muted);
}

.tratamiento ul li {
  margin-bottom: 0.3rem;
}

.tratamiento .note {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---------- Pullquote ---------- */
.pullquote {
  padding: 4.5rem 0;
}

.pullquote blockquote {
  font-family: var(--serif);
  font-weight: 330;
  font-size: clamp(1.8rem, 4.5vw, 3.2rem);
  line-height: 1.15;
  max-width: 24ch;
}

.pullquote blockquote em {
  color: var(--accent);
}

.pullquote footer {
  margin-top: 1.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Page hero (inner) ---------- */
.page-hero {
  padding: 4.5rem 0 3rem;
  border-bottom: 1px solid var(--line);
}

.page-hero .display {
  margin-top: 1.4rem;
}

.page-hero .lede {
  margin-top: 1.8rem;
}

/* ---------- Prose ---------- */
.prose p {
  color: var(--muted);
  max-width: 62ch;
  margin-bottom: 1.3rem;
}

.prose .lead {
  font-size: 1.25rem;
  color: var(--ink);
  font-weight: 300;
}

.prose h2 {
  font-family: var(--serif);
  font-weight: 380;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  margin: 3rem 0 1.2rem;
}

.prose ul {
  padding-left: 1.3rem;
  color: var(--muted);
}

.prose ul li {
  margin-bottom: 0.45rem;
}

/* ---------- Cards (data) ---------- */
.data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.data-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 2rem;
}

.data-card .kicker {
  margin-bottom: 1rem;
}

.data-card h3 {
  font-family: var(--serif);
  font-weight: 380;
  font-size: 1.7rem;
  margin-bottom: 0.8rem;
}

.data-card p {
  color: var(--muted);
}

.data-card ul {
  padding-left: 1.1rem;
  color: var(--muted);
}

.data-card ul li {
  margin-bottom: 0.4rem;
}

.data-card h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.2rem;
  margin: 1.6rem 0 0.8rem;
  color: var(--ink);
}

/* ---------- Form ---------- */
.form {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 2.2rem;
}

.form label {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.form input,
.form textarea {
  width: 100%;
  font-family: var(--sans);
  font-weight: 300;
  font-size: 1rem;
  color: var(--ink);
  padding: 0.7rem 0.2rem;
  margin-bottom: 1.4rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  border-radius: 0;
}

.form input:focus,
.form textarea:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

.form textarea {
  resize: vertical;
  min-height: 110px;
}

.form .btn {
  border: none;
  cursor: pointer;
}

.form-success {
  display: none;
  color: var(--accent);
  margin-top: 1rem;
  font-size: 0.9rem;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--ink);
  color: var(--bg);
  padding: 4.5rem 2rem;
  text-align: center;
}

.cta-band .display {
  margin: 1.2rem auto 1.6rem;
  max-width: 18ch;
}

.cta-band .btn-solid {
  background: var(--bg);
  color: var(--ink);
  border-color: var(--bg);
}

.cta-band .btn-solid:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

/* ---------- Placeholder (contact) ---------- */
.placeholder {
  background: var(--accent-soft);
  border: 1px dashed var(--accent);
  padding: 0.1rem 0.5rem;
  border-radius: 3px;
  color: var(--accent-dark);
  font-size: 0.85rem;
}

/* El pie es oscuro: el chip necesita la variante clara. */
.site-footer .placeholder {
  color: var(--sand);
  background: rgba(238, 230, 221, 0.1);
  border-color: var(--sand);
}

/* La banda de CTA es oscura: el kicker necesita la variante clara.
   El .btn-solid ya tiene su propia variante mas arriba. */
.cta-band .kicker {
  color: var(--sand);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--bg);
  padding: 4rem 0 1.6rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2.5rem;
}

.site-footer h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.3rem;
  margin-bottom: 0.7rem;
}

.site-footer p,
.site-footer a,
.site-footer li {
  font-size: 0.9rem;
  color: var(--sand);
}

.site-footer ul {
  list-style: none;
}

.site-footer li {
  margin-bottom: 0.35rem;
}

.site-footer a:hover {
  color: var(--sand);
}

.site-footer img {
  height: 60px;
  width: auto;
}

.site-footer .footer-brand {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-style: italic;
  color: var(--bg);
}

.copyright {
  width: 100%;
  text-align: center;
  margin-top: 3rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line-inverse);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-inverse);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .feature {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .tratamiento {
    grid-template-columns: 3rem 1fr;
  }

  .tratamiento .equip {
    grid-column: 2;
  }

  .equip-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .data-grid {
    grid-template-columns: 1fr;
  }

  .index-list li {
    grid-template-columns: 3.5rem 1fr;
  }

  .index-list .tags {
    grid-column: 2;
    text-align: left;
  }
}

@media (max-width: 620px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    width: 100%;
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0.9rem;
    padding: 1rem 0;
  }

  .site-header .wrap {
    flex-wrap: wrap;
  }

  .equip-strip {
    grid-template-columns: 1fr;
  }

  .masthead {
    padding-top: 3.5rem;
  }
}