/* =====================================================================
   VerdeVida - Hoja de estilos principal
   Mobile-first · Variables CSS · Sin dependencias externas
   ===================================================================== */

/* ---------- 1. Variables ---------- */
:root {
  /* Colores */
  --c-primary: #2f7d4f;
  --c-primary-dark: #1f5c39;
  --c-primary-light: #e8f4ec;
  --c-accent: #f2a541;
  --c-accent-dark: #d4861c;
  --c-accent-light: #fff4e3;
  --c-text: #1d2a22;
  --c-text-muted: #56675d;
  --c-heading: #14301f;
  --c-bg: #ffffff;
  --c-bg-alt: #f5faf6;
  --c-bg-dark: #14301f;
  --c-border: #dce8e0;
  --c-white: #ffffff;
  --c-error: #b42318;
  --c-success: #1f7a45;

  /* Tipografía */
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-heading: "Manrope", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-base: 1.0625rem;
  --fs-lg: clamp(1.125rem, 1rem + 0.4vw, 1.25rem);
  --fs-h4: clamp(1.125rem, 1.05rem + 0.3vw, 1.25rem);
  --fs-h3: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
  --fs-h2: clamp(1.625rem, 1.3rem + 1.4vw, 2.375rem);
  --fs-h1: clamp(2rem, 1.5rem + 2.4vw, 3.375rem);
  --lh-tight: 1.2;
  --lh-base: 1.7;

  /* Espaciado */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --section-y: clamp(3.5rem, 2.5rem + 4vw, 6.5rem);

  /* Formas y sombras */
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-sm: 0 1px 3px rgba(20, 48, 31, 0.08);
  --shadow: 0 6px 24px rgba(20, 48, 31, 0.08);
  --shadow-lg: 0 18px 48px rgba(20, 48, 31, 0.14);

  /* Layout */
  --container: 1180px;
  --container-narrow: 780px;
  --header-h: 72px;
  --transition: 0.25s ease;
  --focus-ring: 0 0 0 3px rgba(242, 165, 65, 0.55);
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.nav-open { overflow: hidden; }

img, svg, video, picture { display: block; max-width: 100%; height: auto; }
img { border-style: none; }

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  line-height: var(--lh-tight);
  color: var(--c-heading);
  font-weight: 800;
  letter-spacing: -0.015em;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 700; }
h4 { font-size: var(--fs-h4); font-weight: 700; }

p { margin: 0 0 var(--space-4); }
ul, ol { margin: 0 0 var(--space-4); padding-left: 1.25rem; }
li { margin-bottom: var(--space-2); }

a {
  color: var(--c-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition);
}
a:hover { color: var(--c-primary-dark); }

:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 4px; }

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

hr { border: 0; border-top: 1px solid var(--c-border); margin: var(--space-6) 0; }

table { width: 100%; border-collapse: collapse; margin-bottom: var(--space-5); font-size: var(--fs-sm); }
th, td { padding: var(--space-3); border: 1px solid var(--c-border); text-align: left; vertical-align: top; }
th { background: var(--c-bg-alt); font-weight: 700; }

/* ---------- 3. Utilidades ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 1.25rem; }
.container--narrow { max-width: var(--container-narrow); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 1rem; top: -100px; z-index: 1000;
  padding: var(--space-3) var(--space-4);
  background: var(--c-primary-dark); color: var(--c-white);
  border-radius: var(--radius-sm); font-weight: 600;
}
.skip-link:focus { top: 1rem; color: var(--c-white); }

.text-center { text-align: center; }
.text-muted { color: var(--c-text-muted); }
.lead { font-size: var(--fs-lg); color: var(--c-text-muted); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-6 { margin-top: var(--space-6); }
.mb-6 { margin-bottom: var(--space-6); }

.eyebrow {
  display: inline-block;
  margin-bottom: var(--space-3);
  padding: 0.3rem 0.85rem;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-primary-dark);
  background: var(--c-primary-light);
  border-radius: var(--radius-full);
}

/* ---------- 4. Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  font-weight: 700; font-size: var(--fs-sm); line-height: 1.2;
  text-decoration: none; text-align: center;
  border: 2px solid transparent; border-radius: var(--radius-full);
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--c-primary); color: var(--c-white); box-shadow: 0 6px 18px rgba(47, 125, 79, 0.25); }
.btn--primary:hover { background: var(--c-primary-dark); color: var(--c-white); }

.btn--accent { background: var(--c-accent); color: var(--c-heading); }
.btn--accent:hover { background: var(--c-accent-dark); color: var(--c-heading); }

.btn--outline { background: transparent; color: var(--c-primary); border-color: var(--c-primary); }
.btn--outline:hover { background: var(--c-primary); color: var(--c-white); }

.btn--light { background: var(--c-white); color: var(--c-primary-dark); }
.btn--light:hover { background: var(--c-primary-light); color: var(--c-primary-dark); }

.btn--ghost { background: transparent; color: var(--c-white); border-color: rgba(255, 255, 255, 0.6); }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.12); color: var(--c-white); }

.btn--sm { min-height: 40px; padding: 0.5rem 1.1rem; font-size: var(--fs-xs); }
.btn--block { width: 100%; }

.btn-group { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.btn-group--center { justify-content: center; }

/* ---------- 5. Cabecera y navegación ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); border-bottom-color: var(--c-border); }

.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: var(--space-4); }

.logo {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-heading); font-size: 1.375rem; font-weight: 800;
  color: var(--c-heading); text-decoration: none; letter-spacing: -0.02em;
}
.logo:hover { color: var(--c-heading); }
.logo img, .logo svg { width: 36px; height: 36px; }
.logo span { color: var(--c-primary); }

.nav-toggle {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 10px;
  background: transparent; border: 0; border-radius: var(--radius-sm);
}
.nav-toggle__bar {
  display: block; width: 24px; height: 2px;
  background: var(--c-heading); border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-menu {
  position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
  display: flex; flex-direction: column;
  padding: var(--space-5) 1.25rem var(--space-7);
  background: var(--c-white);
  overflow-y: auto;
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.3s ease, visibility 0.3s;
}
.nav-menu.is-open { transform: translateX(0); visibility: visible; }

.nav-list { list-style: none; margin: 0; padding: 0; }
.nav-list li { margin: 0; border-bottom: 1px solid var(--c-border); }
.nav-link {
  display: block; padding: 0.95rem 0.25rem;
  font-weight: 600; font-size: 1.0625rem;
  color: var(--c-text); text-decoration: none;
}
.nav-link:hover, .nav-link[aria-current="page"] { color: var(--c-primary); }
.nav-menu .btn { margin-top: var(--space-5); }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  padding: clamp(3rem, 2rem + 5vw, 6.5rem) 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(242, 165, 65, 0.18), transparent 45%),
    radial-gradient(circle at 10% 90%, rgba(47, 125, 79, 0.14), transparent 45%),
    var(--c-bg-alt);
  overflow: hidden;
}
.hero__grid { display: grid; gap: var(--space-7); align-items: center; }
.hero__title { margin-bottom: var(--space-4); }
.hero__title em { font-style: normal; color: var(--c-primary); }
.hero__text { font-size: var(--fs-lg); color: var(--c-text-muted); max-width: 38rem; margin-bottom: var(--space-6); }
.hero__media { position: relative; }
.hero__media img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3; object-fit: cover; }
.hero__badge {
  position: absolute; left: -0.5rem; bottom: -1rem;
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--c-white); border-radius: var(--radius); box-shadow: var(--shadow);
  font-size: var(--fs-sm); font-weight: 600;
}
.hero__badge strong { display: block; font-size: 1.25rem; color: var(--c-primary); }
.hero__trust { display: flex; flex-wrap: wrap; gap: var(--space-4) var(--space-6); margin-top: var(--space-6); padding: 0; list-style: none; font-size: var(--fs-sm); color: var(--c-text-muted); }
.hero__trust li { display: flex; align-items: center; gap: 0.5rem; margin: 0; }
.hero__trust li::before { content: "✓"; display: inline-grid; place-items: center; width: 22px; height: 22px; font-size: 0.75rem; font-weight: 800; color: var(--c-white); background: var(--c-primary); border-radius: 50%; }

/* Cabecera de páginas interiores */
.page-hero { padding: clamp(2.5rem, 2rem + 3vw, 4.5rem) 0; background: var(--c-bg-alt); border-bottom: 1px solid var(--c-border); }
.page-hero h1 { margin-bottom: var(--space-3); }
.page-hero p { max-width: 46rem; color: var(--c-text-muted); font-size: var(--fs-lg); margin-bottom: 0; }

/* Migas de pan */
.breadcrumbs { margin-bottom: var(--space-4); font-size: var(--fs-xs); }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 0.35rem; list-style: none; margin: 0; padding: 0; }
.breadcrumbs li { margin: 0; color: var(--c-text-muted); }
.breadcrumbs li + li::before { content: "›"; margin-right: 0.35rem; color: var(--c-text-muted); }
.breadcrumbs a { color: var(--c-text-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--c-primary); text-decoration: underline; }

/* ---------- 7. Secciones ---------- */
.section { padding: var(--section-y) 0; }
.section--alt { background: var(--c-bg-alt); }
.section--tight { padding: calc(var(--section-y) * 0.6) 0; }
.section--dark { background: var(--c-bg-dark); color: rgba(255, 255, 255, 0.85); }
.section--dark h2, .section--dark h3 { color: var(--c-white); }

.section-header { max-width: 46rem; margin: 0 auto var(--space-7); text-align: center; }
.section-header p { color: var(--c-text-muted); font-size: var(--fs-lg); margin-bottom: 0; }
.section-header--left { margin-left: 0; text-align: left; }

/* ---------- 8. Grids ---------- */
.grid { display: grid; gap: var(--space-5); }
.grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
.split { display: grid; gap: var(--space-7); align-items: center; }
.split__media img { border-radius: var(--radius-lg); box-shadow: var(--shadow); width: 100%; object-fit: cover; }

/* ---------- 9. Tarjetas ---------- */
.card {
  position: relative;
  display: flex; flex-direction: column;
  padding: var(--space-6);
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.card h3 { margin-bottom: var(--space-3); }
.card p { color: var(--c-text-muted); }
.card p:last-child { margin-bottom: 0; }
.card__icon {
  display: grid; place-items: center;
  width: 56px; height: 56px; margin-bottom: var(--space-4);
  font-size: 1.6rem;
  background: var(--c-primary-light); color: var(--c-primary);
  border-radius: var(--radius);
}
.card__icon svg { width: 28px; height: 28px; }
.card__link { margin-top: auto; padding-top: var(--space-4); font-weight: 700; text-decoration: none; }
.card__link::after { content: " →"; transition: margin-left var(--transition); }
.card__link:hover::after { margin-left: 4px; }

/* Tarjeta de artículo */
.post-card { padding: 0; overflow: hidden; }
.post-card__media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.post-card__body { display: flex; flex-direction: column; flex: 1; padding: var(--space-5); }
.post-card__meta { margin-bottom: var(--space-2); font-size: var(--fs-xs); color: var(--c-text-muted); }
.post-card__title { font-size: var(--fs-h4); }
.post-card__title a { color: var(--c-heading); text-decoration: none; }
.post-card__title a::after { content: ""; position: absolute; inset: 0; }
.post-card__title a:hover { color: var(--c-primary); }

/* Equipo */
.team-card { text-align: center; }
.team-card img { width: 128px; height: 128px; margin: 0 auto var(--space-4); border-radius: 50%; object-fit: cover; border: 4px solid var(--c-primary-light); }
.team-card__role { display: block; margin-bottom: var(--space-3); font-size: var(--fs-sm); font-weight: 600; color: var(--c-primary); }
.avatar {
  display: grid; place-items: center;
  width: 96px; height: 96px; margin: 0 auto var(--space-4);
  font-family: var(--font-heading); font-size: 1.75rem; font-weight: 800;
  color: var(--c-primary-dark); background: var(--c-primary-light);
  border-radius: 50%; border: 3px solid var(--c-primary); flex-shrink: 0;
}
.avatar--sm { width: 64px; height: 64px; margin: 0; font-size: 1.25rem; }

.table-wrap { width: 100%; overflow-x: auto; margin-bottom: var(--space-5); }
.table-wrap table { margin-bottom: 0; }

/* Testimonios / opiniones */
.quote-card { background: var(--c-white); }
.quote-card blockquote { margin: 0 0 var(--space-4); font-size: var(--fs-base); color: var(--c-text); }
.quote-card cite { font-style: normal; font-weight: 700; font-size: var(--fs-sm); color: var(--c-heading); }
.quote-card cite small { display: block; font-weight: 400; color: var(--c-text-muted); }

/* Tarifas / planes */
.plan { text-align: left; }
.plan--featured { border: 2px solid var(--c-primary); box-shadow: var(--shadow); }
.plan__tag { position: absolute; top: -0.8rem; right: var(--space-5); padding: 0.2rem 0.75rem; font-size: var(--fs-xs); font-weight: 700; color: var(--c-white); background: var(--c-primary); border-radius: var(--radius-full); }
.plan__price { margin: var(--space-3) 0 var(--space-4); font-family: var(--font-heading); font-size: 2.25rem; font-weight: 800; color: var(--c-heading); line-height: 1; }
.plan__price small { font-size: var(--fs-sm); font-weight: 500; color: var(--c-text-muted); }
.plan .btn { margin-top: auto; }

/* Lista con iconos */
.check-list { list-style: none; padding: 0; }
.check-list li { position: relative; padding-left: 1.85rem; }
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0.2em;
  display: grid; place-items: center; width: 20px; height: 20px;
  font-size: 0.7rem; font-weight: 800;
  color: var(--c-primary); background: var(--c-primary-light); border-radius: 50%;
}

/* Cifras */
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); text-align: center; }
.stat__number { display: block; font-family: var(--font-heading); font-size: clamp(2rem, 1.6rem + 1.6vw, 2.75rem); font-weight: 800; color: var(--c-primary); line-height: 1.1; }
.stat__label { font-size: var(--fs-sm); color: var(--c-text-muted); }
.section--dark .stat__number { color: var(--c-accent); }
.section--dark .stat__label { color: rgba(255, 255, 255, 0.75); }

/* Pasos */
.steps { counter-reset: step; list-style: none; padding: 0; display: grid; gap: var(--space-5); }
.steps li { position: relative; margin: 0; padding: var(--space-5) var(--space-5) var(--space-5) 4.5rem; background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius); }
.steps li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: var(--space-5); top: var(--space-5);
  display: grid; place-items: center; width: 36px; height: 36px;
  font-weight: 800; color: var(--c-white); background: var(--c-primary); border-radius: 50%;
}
.steps h3 { font-size: var(--fs-h4); margin-bottom: var(--space-2); }
.steps p { margin: 0; color: var(--c-text-muted); }

/* ---------- 10. Contenido editorial ---------- */
.prose { max-width: var(--container-narrow); margin-inline: auto; }
.prose h2 { margin-top: var(--space-7); }
.prose h3 { margin-top: var(--space-6); }
.prose img { margin: var(--space-6) 0; border-radius: var(--radius); }
.prose figure { margin: var(--space-6) 0; }
.prose figcaption { margin-top: var(--space-2); font-size: var(--fs-xs); color: var(--c-text-muted); text-align: center; }
.prose blockquote {
  margin: var(--space-6) 0; padding: var(--space-4) var(--space-5);
  font-size: var(--fs-lg); font-style: italic;
  background: var(--c-primary-light); border-left: 4px solid var(--c-primary); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.prose blockquote p:last-child { margin-bottom: 0; }

.article-meta { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-5); margin-top: var(--space-4); font-size: var(--fs-sm); color: var(--c-text-muted); }

.toc { margin: var(--space-6) 0; padding: var(--space-5); background: var(--c-bg-alt); border: 1px solid var(--c-border); border-radius: var(--radius); }
.toc strong { display: block; margin-bottom: var(--space-3); color: var(--c-heading); }
.toc ol { margin: 0; }

.author-box { display: flex; gap: var(--space-4); align-items: flex-start; margin-top: var(--space-7); padding: var(--space-5); background: var(--c-bg-alt); border-radius: var(--radius); }
.author-box img { width: 72px; height: 72px; flex-shrink: 0; border-radius: 50%; object-fit: cover; }
.author-box p { margin: 0; font-size: var(--fs-sm); color: var(--c-text-muted); }

/* Avisos informativos */
.notice {
  margin: var(--space-6) 0; padding: var(--space-4) var(--space-5);
  font-size: var(--fs-sm);
  background: var(--c-accent-light); border: 1px solid #f5d6a4; border-left: 4px solid var(--c-accent);
  border-radius: var(--radius-sm);
}
.notice p:last-child { margin-bottom: 0; }
.notice--info { background: var(--c-primary-light); border-color: #c7e3d2; border-left-color: var(--c-primary); }

/* ---------- 11. FAQ (acordeón) ---------- */
.faq { max-width: var(--container-narrow); margin-inline: auto; }
.faq-item { margin-bottom: var(--space-3); background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius); overflow: hidden; transition: box-shadow var(--transition); }
.faq-item.is-open { box-shadow: var(--shadow-sm); border-color: #c7e3d2; }
.faq-question {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  width: 100%; margin: 0; padding: var(--space-4) var(--space-5);
  font-family: var(--font-heading); font-size: var(--fs-base); font-weight: 700; text-align: left;
  color: var(--c-heading); background: transparent; border: 0;
}
.faq-question:hover { color: var(--c-primary); }
.faq-question::after {
  content: "+"; flex-shrink: 0;
  display: grid; place-items: center; width: 30px; height: 30px;
  font-size: 1.25rem; font-weight: 500; line-height: 1;
  color: var(--c-primary); background: var(--c-primary-light); border-radius: 50%;
  transition: transform var(--transition);
}
.faq-question[aria-expanded="true"]::after { transform: rotate(45deg); }
.faq-answer { padding: 0 var(--space-5); overflow: hidden; }
.faq-answer__inner { padding-bottom: var(--space-5); color: var(--c-text-muted); }
.faq-answer__inner p:last-child { margin-bottom: 0; }
.js .faq-answer { max-height: 0; transition: max-height 0.35s ease; }

/* ---------- 12. CTA ---------- */
.cta {
  position: relative; overflow: hidden;
  padding: clamp(2.5rem, 2rem + 3vw, 4rem) clamp(1.5rem, 1rem + 3vw, 4rem);
  color: rgba(255, 255, 255, 0.9);
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
  border-radius: var(--radius-lg);
  text-align: center;
}
.cta::before { content: ""; position: absolute; width: 320px; height: 320px; right: -100px; top: -120px; background: rgba(255, 255, 255, 0.08); border-radius: 50%; }
.cta h2 { color: var(--c-white); }
.cta p { max-width: 40rem; margin: 0 auto var(--space-6); font-size: var(--fs-lg); }
.cta .btn-group { justify-content: center; position: relative; }

/* ---------- 13. Formularios ---------- */
.form { display: grid; gap: var(--space-4); }
.form-row { display: grid; gap: var(--space-4); }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: var(--fs-sm); font-weight: 600; color: var(--c-heading); }
.form-group .required { color: var(--c-error); }
.form-control {
  width: 100%; min-height: 50px; padding: 0.75rem 1rem;
  background: var(--c-white); border: 1.5px solid var(--c-border); border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus { outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(47, 125, 79, 0.15); }
textarea.form-control { min-height: 140px; resize: vertical; }
select.form-control { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--c-text-muted) 50%), linear-gradient(135deg, var(--c-text-muted) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 15px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 2.5rem; }
.form-control.is-invalid { border-color: var(--c-error); }
.form-error { font-size: var(--fs-xs); color: var(--c-error); }
.form-check { display: flex; align-items: flex-start; gap: 0.6rem; font-size: var(--fs-sm); color: var(--c-text-muted); }
.form-check input { width: 18px; height: 18px; margin-top: 0.2rem; flex-shrink: 0; accent-color: var(--c-primary); }
.form-hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.form-alert { padding: var(--space-4); border-radius: var(--radius-sm); font-size: var(--fs-sm); }
.form-alert--success { background: var(--c-primary-light); color: var(--c-success); }
.form-alert--error { background: #fdecea; color: var(--c-error); }

.contact-card { display: flex; gap: var(--space-4); align-items: flex-start; }
.contact-card .card__icon { margin: 0; flex-shrink: 0; }
.contact-card h3 { font-size: var(--fs-h4); margin-bottom: var(--space-1); }

/* ---------- 14. Pie de página ---------- */
.site-footer { padding: var(--space-8) 0 var(--space-5); color: rgba(255, 255, 255, 0.75); background: var(--c-bg-dark); font-size: var(--fs-sm); }
.site-footer a { color: rgba(255, 255, 255, 0.8); text-decoration: none; }
.site-footer a:hover { color: var(--c-accent); }
.footer-grid { display: grid; gap: var(--space-6); margin-bottom: var(--space-7); }
.footer-brand .logo { color: var(--c-white); margin-bottom: var(--space-4); }
.footer-brand .logo span { color: var(--c-accent); }
.footer-title { margin-bottom: var(--space-4); font-size: var(--fs-base); color: var(--c-white); }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: var(--space-2); }
.footer-contact { font-style: normal; }
.footer-contact p { margin-bottom: var(--space-2); }
.footer-bottom { display: flex; flex-direction: column; gap: var(--space-3); padding-top: var(--space-5); border-top: 1px solid rgba(255, 255, 255, 0.12); font-size: var(--fs-xs); }
.footer-bottom__links { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); }
.footer-disclaimer { margin-top: var(--space-4); font-size: var(--fs-xs); color: rgba(255, 255, 255, 0.55); }
.link-button { padding: 0; background: none; border: 0; color: rgba(255, 255, 255, 0.8); font-size: inherit; text-decoration: none; }
.link-button:hover { color: var(--c-accent); }

/* Botón volver arriba */
.back-to-top {
  position: fixed; right: 1rem; bottom: 1rem; z-index: 90;
  display: grid; place-items: center; width: 46px; height: 46px;
  color: var(--c-white); background: var(--c-primary); border: 0; border-radius: 50%; box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background-color var(--transition);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--c-primary-dark); }

/* ---------- 15. Banner de cookies ---------- */
.cookie-banner {
  position: fixed; left: 0.75rem; right: 0.75rem; bottom: 0.75rem; z-index: 1000;
  max-width: 980px; margin-inline: auto;
  padding: var(--space-5);
  background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  font-size: var(--fs-sm);
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.cookie-banner.is-visible { opacity: 1; transform: translateY(0); }
.cookie-banner__title { margin-bottom: var(--space-2); font-size: var(--fs-h4); }
.cookie-banner__text { margin-bottom: var(--space-4); color: var(--c-text-muted); }
.cookie-banner__actions { display: flex; flex-direction: column; gap: var(--space-2); }
.cookie-banner__actions .btn { width: 100%; }

.cookie-prefs { display: none; margin: 0 0 var(--space-4); max-height: 45vh; overflow-y: auto; }
.cookie-banner.show-prefs .cookie-prefs { display: block; }
.cookie-pref { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); padding: var(--space-3) 0; border-bottom: 1px solid var(--c-border); }
.cookie-pref:last-child { border-bottom: 0; }
.cookie-pref strong { display: block; color: var(--c-heading); }
.cookie-pref p { margin: 0.15rem 0 0; font-size: var(--fs-xs); color: var(--c-text-muted); }

.switch { position: relative; display: inline-block; flex-shrink: 0; width: 46px; height: 26px; margin-top: 0.15rem; }
.switch input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; z-index: 1; }
.switch__slider { position: absolute; inset: 0; background: #c9d4cd; border-radius: var(--radius-full); transition: background-color var(--transition); }
.switch__slider::before { content: ""; position: absolute; left: 3px; top: 3px; width: 20px; height: 20px; background: var(--c-white); border-radius: 50%; box-shadow: var(--shadow-sm); transition: transform var(--transition); }
.switch input:checked + .switch__slider { background: var(--c-primary); }
.switch input:checked + .switch__slider::before { transform: translateX(20px); }
.switch input:disabled + .switch__slider { opacity: 0.6; }
.switch input:focus-visible + .switch__slider { box-shadow: var(--focus-ring); }

/* ---------- 16. Página 404 ---------- */
.error-page { padding: var(--section-y) 0; text-align: center; }
.error-page__code { display: block; font-family: var(--font-heading); font-size: clamp(5rem, 3rem + 10vw, 9rem); font-weight: 800; line-height: 1; color: var(--c-primary-light); -webkit-text-stroke: 2px var(--c-primary); }
.error-page .btn-group { justify-content: center; margin-top: var(--space-5); }

/* ---------- 17. Responsive ---------- */
@media (min-width: 600px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .cookie-banner__actions { flex-direction: row; justify-content: flex-end; flex-wrap: wrap; }
  .cookie-banner__actions .btn { width: auto; }
}

@media (min-width: 900px) {
  :root { --header-h: 80px; }
  .container { padding-inline: 2rem; }

  .nav-toggle { display: none; }
  .nav-menu {
    position: static; flex-direction: row; align-items: center; gap: var(--space-5);
    padding: 0; background: transparent; overflow: visible;
    transform: none; visibility: visible; transition: none;
  }
  .nav-list { display: flex; align-items: center; gap: var(--space-1); }
  .nav-list li { border: 0; }
  .nav-link { position: relative; padding: 0.5rem 0.75rem; font-size: var(--fs-sm); }
  .nav-link::after { content: ""; position: absolute; left: 0.75rem; right: 0.75rem; bottom: 0.2rem; height: 2px; background: var(--c-primary); border-radius: 2px; transform: scaleX(0); transition: transform var(--transition); }
  .nav-link:hover::after, .nav-link[aria-current="page"]::after { transform: scaleX(1); }
  .nav-menu .btn { margin-top: 0; }

  .hero__grid { grid-template-columns: 1.1fr 1fr; }
  .split { grid-template-columns: 1fr 1fr; }
  .split--reverse .split__media { order: 2; }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
  .stats { grid-template-columns: repeat(4, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.6fr 1fr 1fr 1.3fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; align-items: center; }
  .cookie-banner { left: 1.5rem; right: 1.5rem; bottom: 1.5rem; padding: var(--space-6); }
  .back-to-top { right: 1.5rem; bottom: 1.5rem; }
}

@media (min-width: 1200px) {
  .nav-list { gap: var(--space-2); }
}

/* ---------- 18. Accesibilidad / impresión ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

@media print {
  .site-header, .site-footer, .cookie-banner, .back-to-top, .nav-toggle, .cta { display: none !important; }
  body { color: #000; font-size: 12pt; }
  a { color: #000; text-decoration: underline; }
  .js .faq-answer { max-height: none !important; }
}