/* ============================================================
   landing.css — Hoja única para las landings de Google Ads.
   Vainilla puro, sin build, sin dependencias externas.
   Tokens copiados de /DESIGN.md y /src/assets/css/tokens.css
   para mantener la identidad de marca sin depender del build de 11ty.
   ============================================================ */

:root {
  /* Tipografía: system-first para carga instantánea (crítico en Ads) */
  --font-display: Georgia, "Iowan Old Style", "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "IBM Plex Mono", Menlo, Consolas, monospace;

  --text-display: clamp(2.25rem, 1.6rem + 3.2vw, 3.5rem);
  --text-h1: clamp(1.875rem, 1.5rem + 1.9vw, 2.75rem);
  --text-h2: clamp(1.5rem, 1.32rem + 0.9vw, 2rem);
  --text-h3: clamp(1.2rem, 1.1rem + 0.5vw, 1.45rem);
  --text-lead: clamp(1.125rem, 1.06rem + 0.32vw, 1.3125rem);
  --text-body: 1rem;
  --text-small: 0.875rem;
  --text-caption: 0.8rem;
  --text-eyebrow: 0.8125rem;

  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;
  --measure: 68ch;

  --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;
  --space-9: 6rem;

  --container-content: 1040px;
  --container-wide: 1200px;
  --gutter: var(--space-4);

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-pill: 9999px;

  --motion-fast: 120ms;
  --motion-base: 200ms;
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);

  --color-canvas: #FAFAFB;
  --color-surface: #FFFFFF;
  --color-surface-sunken: #F4F4F5;
  --color-ink: #18181B;
  --color-ink-muted: #52525B;
  --color-ink-subtle: #71717A;
  --color-hairline: #E4E4E7;

  --color-brand: #54632A;
  --color-brand-hover: #3F4A1E;
  --color-on-brand: #FFFFFF;
  --color-brand-wash: #EDF1DC;

  --color-danger: #E03131;
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-focus: 0 0 0 3px var(--color-brand-wash);

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-canvas: #0A0A0F;
    --color-surface: #141419;
    --color-surface-sunken: #1F1F26;
    --color-ink: #F4F4F5;
    --color-ink-muted: #A1A1AA;
    --color-ink-subtle: #71717A;
    --color-hairline: #27272A;
    --color-brand: #8A9C54;
    --color-brand-hover: #AEC07E;
    --color-on-brand: #0A0A0F;
    --color-brand-wash: #2A3115;
    color-scheme: dark;
  }
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: var(--leading-relaxed);
  color: var(--color-ink);
  background: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  letter-spacing: -0.01em;
  color: var(--color-ink);
  text-wrap: balance;
}
h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); font-family: var(--font-sans); line-height: var(--leading-snug); }
p, li { text-wrap: pretty; }
a { color: var(--color-brand); text-decoration-thickness: 1px; text-underline-offset: 0.18em; transition: color var(--motion-fast) var(--ease-standard); }
a:hover { color: var(--color-brand-hover); }
img, svg { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }

:focus-visible { outline: 2px solid var(--color-brand); outline-offset: 2px; border-radius: var(--radius-sm); }
:focus:not(:focus-visible) { outline: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

.visually-hidden {
  position: absolute; 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: var(--space-3); top: -100%; z-index: 100;
  background: var(--color-brand); color: var(--color-on-brand);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-md);
  text-decoration: none; transition: top var(--motion-base) var(--ease-standard);
}
.skip-link:focus { top: var(--space-3); }

/* --- Layout --- */
.container { width: 100%; max-width: var(--container-content); margin-inline: auto; padding-inline: var(--gutter); }
.container--wide { max-width: var(--container-wide); }
.container--prose { max-width: var(--measure); }
@media (min-width: 768px) { :root { --gutter: var(--space-6); } }

.section { padding-block: var(--space-8); }
.section--tight { padding-block: var(--space-6); }

.section--invert {
  --color-canvas: #1A2808;
  --color-surface: #243610;
  --color-surface-sunken: #0F1A04;
  --color-ink: #F4F4F5;
  --color-ink-muted: #B8C8A0;
  --color-ink-subtle: #8A9C78;
  --color-hairline: rgba(255, 255, 255, 0.14);
  --color-brand: #C4D688;
  --color-brand-hover: #D8E8A4;
  --color-on-brand: #1A2808;
  --color-brand-wash: rgba(255, 255, 255, 0.10);
  background: var(--color-canvas);
  color: var(--color-ink);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  .section--invert {
    --color-canvas: #0A0A0F; --color-surface: #141419; --color-surface-sunken: #1F1F26;
    --color-hairline: #27272A; --color-brand: #8A9C54; --color-brand-hover: #AEC07E;
    --color-on-brand: #0A0A0F; --color-brand-wash: #2A3115;
  }
}

.grid { display: grid; gap: var(--space-5); grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); }
.grid--3col { grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); }
.stack > * + * { margin-block-start: var(--flow, var(--space-4)); }
.measure { max-width: var(--measure); }
.measure-center { max-width: var(--measure); margin-inline: auto; }

.eyebrow {
  display: block;
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-brand);
  margin-bottom: var(--space-3);
}
.lead { font-size: var(--text-lead); color: var(--color-ink-muted); }
.meta { font-size: var(--text-caption); color: var(--color-ink-subtle); }

.section-head { max-width: 60ch; margin-bottom: var(--space-6); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-top: var(--space-1); }

/* --- Botones --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 48px; padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans); font-size: var(--text-body); font-weight: var(--weight-medium);
  line-height: 1.2; text-decoration: none; border: 1px solid transparent;
  border-radius: var(--radius-md); cursor: pointer;
  transition: background-color var(--motion-fast) var(--ease-standard),
    border-color var(--motion-fast) var(--ease-standard), transform var(--motion-fast) var(--ease-standard);
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--color-brand); color: var(--color-on-brand); }
.btn--primary:hover { background: var(--color-brand-hover); color: var(--color-on-brand); }
.btn--secondary { background: var(--color-surface); color: var(--color-ink); border-color: var(--color-hairline); }
.btn--secondary:hover { border-color: var(--color-ink-subtle); }
.btn--ghost { background: transparent; color: var(--color-brand); min-height: auto; padding: var(--space-1) 0; }
.btn--ghost:hover { color: var(--color-brand-hover); }
.btn--block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.btn-row--center { justify-content: center; }

/* --- Hero --- */
.hero { padding-block: clamp(var(--space-8), 8vw, var(--space-9)); text-align: center; }
.hero__title { font-size: var(--text-display); max-width: 20ch; margin-inline: auto; }
.hero__title .accent { color: var(--color-brand); }
.hero__lead { margin-top: var(--space-5); font-size: var(--text-lead); color: var(--color-ink-muted); max-width: 58ch; margin-inline: auto; }
.hero__actions { margin-top: var(--space-6); }
.hero__note { margin-top: var(--space-4); font-size: var(--text-small); color: var(--color-ink-subtle); }

/* --- Tarjetas --- */
.card {
  padding: var(--space-5); background: var(--color-surface); border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg); display: flex; flex-direction: column; gap: var(--space-2);
}
.card__eyebrow { font-size: var(--text-eyebrow); font-weight: var(--weight-semibold); letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-brand); }
.card__title { font-family: var(--font-display); font-size: var(--text-h3); font-weight: var(--weight-semibold); }
.card__text { color: var(--color-ink-muted); }

/* --- Callout / TL;DR / mito-realidad --- */
.tldr {
  padding: var(--space-5); border-inline-start: 3px solid var(--color-brand);
  background: var(--color-brand-wash); border-radius: var(--radius-md);
  font-size: var(--text-lead); line-height: var(--leading-normal);
}
.tldr__label { display: block; font-size: var(--text-eyebrow); font-weight: var(--weight-semibold); letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-brand); margin-bottom: var(--space-2); }

.callout {
  padding: var(--space-4) var(--space-5); border-radius: var(--radius-md);
  border: 1px solid var(--color-hairline); background: var(--color-surface-sunken);
}
.callout--info { background: var(--color-brand-wash); border-color: color-mix(in srgb, var(--color-brand) 30%, transparent); }
.callout__body > * + * { margin-block-start: var(--space-2); }
.callout__mito { text-decoration: line-through; color: var(--color-ink-subtle); font-weight: var(--weight-medium); }

/* --- Proceso numerado --- */
.process { display: grid; gap: var(--space-6) var(--space-5); }
@media (min-width: 768px) { .process { grid-template-columns: repeat(2, 1fr); } }
.process__step { display: flex; gap: var(--space-4); align-items: flex-start; }
.process__num {
  flex-shrink: 0; display: grid; place-items: center; width: 2.75rem; height: 2.75rem;
  border-radius: var(--radius-pill); background: var(--color-brand-wash); color: var(--color-brand);
  font-family: var(--font-display); font-size: var(--text-h3); font-weight: var(--weight-semibold);
}
.process__title { font-weight: var(--weight-semibold); margin-bottom: var(--space-1); }
.process__text { color: var(--color-ink-muted); }

/* --- FAQ --- */
.faq h2 { margin-bottom: var(--space-5); }
.faq__item { border-bottom: 1px solid var(--color-hairline); padding-block: var(--space-4); }
.faq__item summary {
  cursor: pointer; font-weight: var(--weight-medium); font-size: var(--text-body);
  display: flex; justify-content: space-between; align-items: center; gap: var(--space-4);
  list-style: none;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "+"; color: var(--color-brand); font-size: 1.4em; line-height: 1; flex-shrink: 0; }
.faq__item[open] summary::after { content: "\2013"; }
.faq__answer { margin-top: var(--space-3); color: var(--color-ink-muted); }

/* --- Formulario --- */
.form { display: grid; gap: var(--space-4); }
.form__row { display: grid; gap: var(--space-2); }
.form__label { font-size: var(--text-small); font-weight: var(--weight-medium); }
.form__input, .form__textarea, .form__select {
  min-height: 48px; padding: var(--space-3) var(--space-4); font-family: var(--font-sans);
  font-size: var(--text-body); color: var(--color-ink); background: var(--color-surface);
  border: 1px solid var(--color-hairline); border-radius: var(--radius-md);
  transition: border-color var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}
.form__textarea { min-height: 9rem; resize: vertical; }
.form__input:focus-visible, .form__textarea:focus-visible, .form__select:focus-visible {
  outline: none; border-color: var(--color-brand); box-shadow: var(--shadow-focus);
}
.form__hint { font-size: var(--text-caption); color: var(--color-ink-subtle); }

/* --- Insignia de autoría pequeña (foto + nombre) --- */
.author-badge { display: inline-flex; align-items: center; gap: var(--space-3); text-align: left; }
.author-badge--center { justify-content: center; }
.author-badge__photo {
  width: 3.5rem; height: 3.5rem; border-radius: var(--radius-pill);
  object-fit: cover; object-position: center 22%;
  border: 2px solid var(--color-hairline); flex-shrink: 0;
}
.author-badge__name { font-weight: var(--weight-semibold); font-size: var(--text-small); color: var(--color-ink); }
.author-badge__role { font-size: var(--text-caption); color: var(--color-ink-muted); }

/* --- Presentación con foto grande (confianza, justo después del hero) --- */
.trust-intro {
  display: flex; flex-direction: column; align-items: center;
  gap: var(--space-5); text-align: center;
}
@media (min-width: 640px) {
  .trust-intro { flex-direction: row; align-items: flex-start; text-align: left; gap: var(--space-6); }
}
.trust-intro__photo {
  width: 11rem; height: 11rem; flex-shrink: 0;
  border-radius: var(--radius-lg);
  object-fit: cover; object-position: center 18%;
  border: 1px solid var(--color-hairline);
  box-shadow: var(--shadow-md);
}
.trust-intro__name { margin-top: var(--space-1); }
.trust-intro__role { color: var(--color-ink-muted); margin-top: var(--space-1); }
.trust-intro__lead { margin-top: var(--space-3); color: var(--color-ink); }
.trust-intro__credentials {
  margin-top: var(--space-4); list-style: none; padding: 0;
  display: flex; flex-direction: column; gap: var(--space-2);
  font-size: var(--text-small); color: var(--color-ink-muted);
}
.trust-intro__credentials li { padding-left: var(--space-5); position: relative; }
.trust-intro__credentials li::before {
  content: "✓"; position: absolute; left: 0;
  color: var(--color-brand); font-weight: var(--weight-semibold);
}

/* --- Barra de credenciales --- */
.trust-bar {
  display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); justify-content: center;
  list-style: none; padding: 0; color: var(--color-ink-muted); font-size: var(--text-small);
}
.trust-bar li::after { content: "·"; margin-left: var(--space-4); color: var(--color-ink-subtle); }
.trust-bar li:last-child::after { content: ""; margin: 0; }

/* --- Barra fija de WhatsApp (móvil, alta conversión en Ads) --- */
.sticky-cta {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 50;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface); border-top: 1px solid var(--color-hairline);
  box-shadow: var(--shadow-md);
  display: none;
}
@media (max-width: 640px) { .sticky-cta { display: block; } }
.sticky-cta .btn { width: 100%; }

/* --- Footer mínimo --- */
.landing-footer {
  border-top: 1px solid var(--color-hairline);
  padding-block: var(--space-6);
  text-align: center;
  color: var(--color-ink-subtle);
  font-size: var(--text-caption);
}
.landing-footer a { color: var(--color-ink-subtle); }

.footer-social {
  display: flex; justify-content: center; gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.footer-social a {
  display: flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem;
  border-radius: var(--radius-md);
  color: var(--color-ink-subtle);
  background: var(--color-surface-sunken);
  border: 1px solid var(--color-hairline);
  text-decoration: none;
  transition: color var(--motion-fast) var(--ease-standard),
    background var(--motion-fast) var(--ease-standard), border-color var(--motion-fast) var(--ease-standard);
}
.footer-social a:hover { color: var(--color-brand); background: var(--color-brand-wash); border-color: var(--color-brand); }
.footer-social svg { width: 1.1rem; height: 1.1rem; flex-shrink: 0; }

/* Espacio extra al final en móvil para no tapar contenido con la sticky-cta */
@media (max-width: 640px) { body { padding-bottom: 4.5rem; } }