/* Variables globales para mantener una identidad visual consistente. */
:root {
  --color-bg: #f7f9fb;
  --color-surface: #ffffff;
  --color-surface-soft: #eef4f1;
  --color-text: #17212b;
  --color-muted: #667482;
  --color-border: #dce5ea;
  --color-primary: #0f6b55;
  --color-primary-dark: #0a493b;
  --color-accent: #c79b39;
  --shadow-soft: 0 16px 40px rgba(23, 33, 43, 0.08);
  --radius: 8px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

img,
svg {
  max-width: 100%;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(199, 155, 57, 0.75);
  outline-offset: 3px;
}

p,
h1,
h2,
h3 {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2.1rem, 5vw, 4.4rem);
  max-width: 820px;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
}

h3 {
  font-size: 1.2rem;
}

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.container.narrow {
  max-width: 820px;
}

.section {
  padding: 72px 0;
}

.section--compact {
  padding: 32px 0;
}

.section--muted {
  background: var(--color-surface-soft);
}

.eyebrow {
  margin-bottom: 12px;
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Header principal. El HTML se sirve estático y js/main.js solo mejora el estado activo. */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.site-header__inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand__logo {
  display: block;
  width: auto;
  height: 42px;
  max-width: min(240px, 54vw);
  object-fit: contain;
}

.brand__mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: #ffffff;
  font-size: 0.95rem;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: var(--radius);
  color: var(--color-muted);
  font-size: 0.95rem;
  font-weight: 700;
  transition: background 0.2s ease, color 0.2s ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: #e8f3ef;
  color: var(--color-primary-dark);
}

.hero {
  background-color: var(--color-bg);
  background-image:
    linear-gradient(90deg, rgba(246, 250, 248, 0.9) 0%, rgba(246, 250, 248, 0.74) 48%, rgba(246, 250, 248, 0.5) 100%),
    url("../assets/img/hero/home-hero-background.jpg");
  background-position: 70% center;
  background-repeat: no-repeat;
  background-size: cover;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 48px;
  align-items: center;
}

.hero__grid--single {
  grid-template-columns: minmax(0, 1fr);
}

.hero__text {
  max-width: 660px;
  color: var(--color-muted);
  font-size: 1.15rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-panel,
.info-panel,
.contact-form,
.calculator-card,
.result-panel,
.tool-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.hero-panel {
  display: grid;
  gap: 14px;
  padding: 22px;
}

.hero-panel__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}

.hero-panel__item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.hero-panel__label {
  color: var(--color-muted);
  font-size: 0.92rem;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 11px 18px;
  font-weight: 800;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.button--primary {
  background: var(--color-primary);
  color: #ffffff;
}

.button--primary:hover {
  background: var(--color-primary-dark);
}

.button--ghost {
  border-color: var(--color-border);
  background: var(--color-surface);
  color: var(--color-primary-dark);
}

.button--ghost:hover {
  border-color: var(--color-primary);
}

.page-hero {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.page-hero p {
  max-width: 760px;
  color: var(--color-muted);
  font-size: 1.08rem;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading p {
  color: var(--color-muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.tool-card {
  display: flex;
  min-height: 250px;
  flex-direction: column;
  padding: 24px;
}

.tool-card--media {
  overflow: hidden;
  padding: 0;
}

.tool-card--media > :not(.tool-card__media) {
  margin-right: 24px;
  margin-left: 24px;
}

.tool-card--media .tool-card__tag {
  margin-top: 22px;
}

.tool-card--media .tool-card__status {
  margin-bottom: 24px;
}

.tool-card__media {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: 100%;
  border-bottom: 1px solid var(--color-border);
  background: #f6f9fb;
  object-fit: cover;
}

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

.tool-card h2,
.tool-card h3 {
  font-size: 1.2rem;
}

.tool-card__tag,
.tool-card__status {
  width: fit-content;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
}

.tool-card__tag {
  margin-bottom: 18px;
  padding: 5px 10px;
  background: #e8f3ef;
  color: var(--color-primary-dark);
}

.tool-card__status {
  margin-top: auto;
  padding: 7px 11px;
  background: #fff6df;
  color: #7a5607;
}

.tool-card__status--link {
  background: var(--color-primary);
  color: #ffffff;
  transition: background 0.2s ease;
}

.tool-card__status--link:hover {
  background: var(--color-primary-dark);
}

.content-band {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 32px;
  align-items: start;
}

.content-band p {
  color: var(--color-muted);
}

.prose h2 {
  margin-top: 34px;
}

.prose h2:first-child {
  margin-top: 0;
}

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

.article-media {
  padding-top: 32px;
  padding-bottom: 0;
  background: var(--color-surface);
}

.article-cover {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  object-fit: cover;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 18px;
  color: var(--color-muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.source-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--color-muted);
}

.source-list a,
.prose a:not(.button) {
  color: var(--color-primary-dark);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.trust-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  background: var(--color-surface);
}

.trust-panel h3 {
  margin-bottom: 10px;
}

.trust-panel p,
.trust-panel li {
  color: var(--color-muted);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 24px;
  align-items: start;
}

.contact-form,
.info-panel {
  padding: 24px;
}

.contact-form {
  display: grid;
  gap: 18px;
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--color-text);
  font-weight: 800;
}

.contact-form input,
.contact-form textarea,
.calculator-form input,
.calculator-form select {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--color-text);
  font: inherit;
  background: #ffffff;
}

.contact-form input:focus,
.contact-form textarea:focus,
.calculator-form input:focus,
.calculator-form select:focus {
  border-color: var(--color-primary);
  outline: 3px solid rgba(15, 107, 85, 0.15);
}

.form-note {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.calculator-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 24px;
  align-items: start;
}

.calculator-card,
.result-panel {
  padding: 24px;
}

.calculator-card .section-heading {
  margin-bottom: 22px;
}

.calculator-form {
  display: grid;
  gap: 18px;
}

.form-field {
  display: grid;
  gap: 7px;
  color: var(--color-text);
  font-weight: 800;
}

.calculator-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.form-error {
  display: none;
  margin: 0;
  border: 1px solid #e6a0a0;
  border-radius: var(--radius);
  padding: 10px 12px;
  background: #fff1f1;
  color: #8b1e1e;
  font-weight: 700;
}

.form-error.is-visible {
  display: block;
}

.result-panel {
  position: sticky;
  top: 96px;
}

.result-list {
  display: grid;
  gap: 12px;
  margin: 22px 0;
}

.result-list__row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.result-list__row dt {
  color: var(--color-muted);
  font-weight: 700;
}

.result-list__row dd {
  flex-shrink: 0;
  margin: 0;
  color: var(--color-text);
  font-size: 1.15rem;
  font-weight: 800;
  text-align: right;
}

.result-list__row--total {
  border-bottom: 0;
}

.result-list__row--total dt,
.result-list__row--total dd {
  color: var(--color-primary-dark);
  font-size: 1.3rem;
}

.result-note {
  margin-bottom: 0;
  border-radius: var(--radius);
  padding: 12px 14px;
  background: #fff6df;
  color: #7a5607;
  font-weight: 700;
}

.faq-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.faq-list details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.faq-list summary {
  cursor: pointer;
  padding: 16px 18px;
  color: var(--color-text);
  font-weight: 800;
}

.faq-list p {
  margin: 0;
  padding: 0 18px 18px;
}

.cookie-banner {
  position: fixed;
  right: 16px;
  bottom: 16px;
  left: 16px;
  z-index: 40;
  display: flex;
  justify-content: center;
  pointer-events: none;
}

.cookie-banner.is-hidden {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.cookie-banner__inner {
  display: grid;
  width: min(100%, 920px);
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  border: 1px solid rgba(10, 73, 59, 0.18);
  border-radius: var(--radius);
  padding: 16px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 45px rgba(23, 33, 43, 0.16);
  pointer-events: auto;
}

.cookie-banner__content {
  display: grid;
  gap: 4px;
}

.cookie-banner__content strong {
  color: var(--color-primary-dark);
  font-size: 0.98rem;
}

.cookie-banner__content p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.94rem;
}

.cookie-banner__content a {
  width: fit-content;
  color: var(--color-primary);
  font-size: 0.92rem;
  font-weight: 800;
}

.cookie-banner__actions {
  display: flex;
  gap: 10px;
}

.site-footer {
  border-top: 1px solid #c9d8d2;
  background:
    linear-gradient(180deg, #d9e8e2 0%, #cbded7 100%);
  color: var(--color-text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(240px, 0.95fr) minmax(0, 1.35fr);
  gap: 48px;
  padding: 40px 0 30px;
}

.site-footer__brand {
  display: grid;
  gap: 12px;
  align-content: start;
}

.site-footer__brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  color: var(--color-primary-dark);
  font-weight: 800;
}

.site-footer__logo {
  display: block;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.55);
  box-shadow: 0 8px 18px rgba(10, 73, 59, 0.12);
}

.site-footer p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.site-footer__notice {
  font-size: 0.92rem;
}

.site-footer__columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.footer-links {
  display: grid;
  gap: 9px;
}

.footer-links strong {
  color: var(--color-primary-dark);
  font-size: 0.95rem;
}

.footer-links a {
  color: #41515c;
  font-size: 0.94rem;
  font-weight: 700;
}

.footer-links a:hover {
  color: var(--color-primary-dark);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid rgba(10, 73, 59, 0.14);
  padding: 18px 0 22px;
  color: var(--color-muted);
  font-size: 0.88rem;
}

@media (max-width: 860px) {
  .brand__logo {
    height: 36px;
    max-width: 210px;
  }

  .section {
    padding: 56px 0;
  }

  .hero {
    background-position: 72% center;
  }

  .hero__grid,
  .content-band,
  .contact-layout,
  .calculator-layout,
  .site-footer__inner {
    grid-template-columns: 1fr;
  }

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

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

  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    box-shadow: var(--shadow-soft);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    width: 100%;
  }

  .site-footer__columns {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .result-panel {
    position: static;
  }

  .cookie-banner__inner {
    grid-template-columns: 1fr;
  }

  .cookie-banner__actions {
    justify-content: flex-end;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 24px, var(--container));
  }

  .hero {
    background-image:
      linear-gradient(90deg, rgba(246, 250, 248, 0.92) 0%, rgba(246, 250, 248, 0.78) 54%, rgba(246, 250, 248, 0.58) 100%),
      url("../assets/img/hero/home-hero-background.jpg");
    background-position: 75% center;
  }

  .hero__actions,
  .calculator-actions,
  .button {
    width: 100%;
  }

  .hero-panel__item {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .result-list__row {
    flex-direction: column;
    gap: 4px;
  }

  .result-list__row dd {
    text-align: left;
  }

  .cookie-banner {
    right: 12px;
    bottom: 12px;
    left: 12px;
  }

  .cookie-banner__inner {
    gap: 12px;
    padding: 14px;
  }

  .cookie-banner__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .cookie-banner__actions .button {
    min-height: 42px;
    padding-inline: 12px;
  }
}