/* ============================================================
   NutriRuta — landing page
   Concepto: la marca se llama "Ruta". La página se organiza como
   un sendero: una línea de recorrido abre el hero y reaparece,
   literal, como la línea de tiempo de las 12 semanas — el único
   momento gráfico "fuerte" de la página. Todo lo demás es editorial
   y tranquilo.
   ============================================================ */

:root {
  /* --- Color: continuidad con la app (verde agua / coral / azul),
     pero con neutros con sesgo de matiz, no gris puro. --- */
  --paper: #F7FAF9;
  --paper-raised: #FFFFFF;
  --ink: #233833;        /* idéntico a --ink de la app */
  --ink-soft: #5C7570;
  --route: #2BB5A0;      /* verde agua — el color con más peso */
  --route-deep: #1E8A7A;
  --route-tint: #DCF3EF;
  --ember: #FF8A6B;      /* coral — idéntico a --accent de la app */
  --ember-tint: #FFE9E2;
  --sky: #6FA8DC;
  --sky-tint: #E8F1FA;
  --line: #DCE8E4;
  --shadow: 0 1px 2px rgba(20, 36, 30, 0.04), 0 12px 32px -16px rgba(20, 36, 30, 0.18);

  /* --- Tipografía: tres roles deliberados ---
     display: serif literaria y cálida (voz emocional)
     body:    sans humanista (lectura larga)
     signage: grotesca condensada tipo señal de carretera (el motivo "ruta") */
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --font-body: -apple-system, "Segoe UI", "Helvetica Neue", Roboto, Arial, sans-serif;
  --font-signage: "Bahnschrift", "Segoe UI Semibold", "Helvetica Neue Condensed", "Arial Narrow", sans-serif;

  --radius-lg: 20px;
  --radius-md: 14px;
  --container: 1160px;

  /* La franja de la Misión 12 semanas es un momento visual fijo:
     se mantiene oscura en ambos temas del sitio (no usa --ink/--paper,
     que se invierten entre claro/oscuro). */
  --mission-bg: #16241F;
  --mission-ink: #F7FAF9;
  --mission-ink-soft: #A9C2BC;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0E1B18;
    --paper-raised: #142622;
    --ink: #EAF3F0;
    --ink-soft: #9FB8B2;
    --route: #4FD6BE;
    --route-deep: #7CE6D2;
    --route-tint: #163A34;
    --ember: #FF8266;
    --ember-tint: #3A2019;
    --sky: #8FC1EE;
    --sky-tint: #17242E;
    --line: #22362F;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 20px 40px -20px rgba(0, 0, 0, 0.6);
  }
}
:root[data-theme="dark"] {
  --paper: #0E1B18; --paper-raised: #142622; --ink: #EAF3F0; --ink-soft: #9FB8B2;
  --route: #4FD6BE; --route-deep: #7CE6D2; --route-tint: #163A34;
  --ember: #FF8266; --ember-tint: #3A2019; --sky: #8FC1EE; --sky-tint: #17242E;
  --line: #22362F; --shadow: 0 1px 2px rgba(0,0,0,.3), 0 20px 40px -20px rgba(0,0,0,.6);
}
:root[data-theme="light"] {
  --paper: #F7FAF9; --paper-raised: #FFFFFF; --ink: #233833; --ink-soft: #5C7570;
  --route: #2BB5A0; --route-deep: #1E8A7A; --route-tint: #DCF3EF;
  --ember: #FF8A6B; --ember-tint: #FFE9E2; --sky: #6FA8DC; --sky-tint: #E8F1FA;
  --line: #DCE8E4; --shadow: 0 1px 2px rgba(20,36,30,.04), 0 12px 32px -16px rgba(20,36,30,.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@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; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { font-family: var(--font-display); text-wrap: balance; color: var(--ink); margin: 0; }
h1 { font-size: clamp(2.4rem, 5.2vw, 4rem); line-height: 1.08; font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); line-height: 1.15; font-weight: 700; }
h3 { font-size: 1.28rem; line-height: 1.3; font-weight: 700; }
p { margin: 0; }
.prose p + p { margin-top: 14px; }
.measure { max-width: 62ch; }

.eyebrow {
  font-family: var(--font-signage);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--route-deep);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before { content: ""; width: 18px; height: 2px; background: var(--ember); border-radius: 2px; }

section { padding: 88px 0; }
@media (max-width: 720px) { section { padding: 56px 0; } }

.band { background: var(--paper-raised); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; text-decoration: none; }
.brand-mark { width: 32px; height: 32px; border-radius: 9px; background: var(--route); display: flex; align-items: center; justify-content: center; flex: none; }
.brand-mark svg { width: 18px; height: 18px; }
.nav .nav-cta { display: none; }
@media (min-width: 720px) { .nav .nav-cta { display: inline-flex; } }

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.98rem;
  border-radius: 999px;
  padding: 14px 28px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn:focus-visible { outline: 3px solid var(--sky); outline-offset: 2px; }
.btn-ember { background: var(--ember); color: #fff; box-shadow: 0 10px 24px -10px color-mix(in srgb, var(--ember) 70%, transparent); }
.btn-ember:hover { transform: translateY(-1px); box-shadow: 0 14px 28px -10px color-mix(in srgb, var(--ember) 75%, transparent); }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line); }
.btn-ghost:hover { border-color: var(--route); color: var(--route-deep); }
.btn-quiet { background: var(--route-tint); color: var(--route-deep); }
.btn-quiet:hover { background: color-mix(in srgb, var(--route-tint) 70%, var(--route) 30%); }
.btn-sm { padding: 10px 18px; font-size: 0.9rem; }
.btn-block { width: 100%; }

/* ---------- Hero ---------- */
.hero { padding: 64px 0 40px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; gap: 36px; } }
.hero-copy > * + * { margin-top: 20px; }
.hero h1 { margin-top: 14px; }
.hero-sub { font-size: 1.15rem; color: var(--ink-soft); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-trust { margin-top: 14px; font-size: 0.86rem; color: var(--ink-soft); font-family: var(--font-signage); letter-spacing: 0.02em; }
.hero-trust span { display: inline-flex; align-items: center; gap: 6px; }
.hero-trust span + span::before { content: "·"; margin-right: 6px; color: var(--line); }

.hero-art { position: relative; }
.hero-art svg { width: 100%; height: auto; }
.route-path {
  fill: none;
  stroke: var(--route);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw 2.1s 0.2s cubic-bezier(.4,0,.2,1) forwards;
}
@media (prefers-reduced-motion: reduce) { .route-path { animation: none; stroke-dashoffset: 0; } }
@keyframes draw { to { stroke-dashoffset: 0; } }
.route-dot { fill: var(--ember); }
.hero-card {
  position: absolute; background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: var(--radius-md); box-shadow: var(--shadow); padding: 12px 16px;
  font-family: var(--font-signage); font-size: 0.8rem; letter-spacing: 0.02em; color: var(--ink-soft);
  display: flex; align-items: center; gap: 8px;
}
.hero-card strong { font-family: var(--font-body); color: var(--ink); font-size: 0.92rem; }
.hero-card-1 { top: 6%; right: 2%; }
.hero-card-2 { bottom: 10%; left: 4%; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--route); flex: none; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ---------- Problem section ---------- */
.problem .wrap { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px; align-items: start; }
@media (max-width: 900px) { .problem .wrap { grid-template-columns: 1fr; gap: 28px; } }
.problem-head > * + * { margin-top: 16px; }
.symptom-list { display: grid; gap: 14px; margin-top: 8px; }
.symptom {
  display: flex; gap: 14px; align-items: flex-start; padding: 18px 20px;
  background: var(--paper-raised); border: 1px solid var(--line); border-radius: var(--radius-md);
}
.symptom svg { flex: none; width: 22px; height: 22px; color: var(--route-deep); margin-top: 2px; }
.symptom p { color: var(--ink-soft); font-size: 0.95rem; }
.symptom strong { color: var(--ink); display: block; margin-bottom: 3px; font-size: 1rem; }

/* ---------- How it works ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 48px; position: relative; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-top: 8px; }
.step-num {
  font-family: var(--font-signage); font-weight: 700; font-size: 0.82rem; letter-spacing: 0.1em;
  color: var(--route-deep); background: var(--route-tint); display: inline-flex; align-items: center;
  justify-content: center; width: 34px; height: 34px; border-radius: 50%; margin-bottom: 16px;
}
.step h3 { margin-bottom: 8px; }
.step p { color: var(--ink-soft); font-size: 0.94rem; }

/* ---------- Features grid ---------- */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
@media (max-width: 900px) { .features-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .features-grid { grid-template-columns: 1fr; } }
.feature-card {
  background: var(--paper-raised); border: 1px solid var(--line); border-radius: var(--radius-md);
  padding: 24px; transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: transparent; }
.feature-card svg { width: 26px; height: 26px; color: var(--route-deep); margin-bottom: 14px; }
.feature-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.feature-card p { color: var(--ink-soft); font-size: 0.92rem; }

/* ---------- 12-week route (bold moment, intentionally fixed-dark) ---------- */
.mission { background: var(--mission-bg); color: var(--mission-ink); position: relative; overflow: hidden; }
.mission .eyebrow { color: var(--route); }
.mission .eyebrow::before { background: var(--ember); }
.mission h2 { color: var(--mission-ink); }
.mission-sub { color: var(--mission-ink-soft); max-width: 56ch; margin-top: 14px; }
.mission-badge {
  display: inline-flex; align-items: center; gap: 8px; background: rgba(247, 250, 249, 0.1);
  border: 1px solid rgba(247, 250, 249, 0.2); border-radius: 999px; padding: 6px 14px;
  font-family: var(--font-signage); font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mission-ink);
  margin-bottom: 18px;
}
.mission-badge .dot { background: var(--ember); }

.timeline-scroll { margin-top: 52px; overflow-x: auto; padding-bottom: 18px; -webkit-overflow-scrolling: touch; }
.timeline { position: relative; min-width: 980px; padding-top: 40px; }
.timeline-line { position: absolute; top: 60px; left: 0; right: 0; height: 3px; background: rgba(247, 250, 249, 0.18); }
.timeline-line-fill { position: absolute; top: 60px; left: 0; height: 3px; background: var(--route); width: 0%; transition: width 1.1s cubic-bezier(.4,0,.2,1); }
.timeline-weeks { display: grid; grid-template-columns: repeat(12, 1fr); gap: 0; position: relative; }
.tweek { padding: 0 8px; text-align: center; }
.tweek-node {
  width: 14px; height: 14px; border-radius: 50%; background: var(--mission-bg); border: 3px solid var(--route);
  margin: 0 auto 14px; position: relative; z-index: 2;
}
.tweek.is-premium .tweek-node { border-color: rgba(247, 250, 249, 0.3); }
.tweek-n { font-family: var(--font-signage); font-size: 0.72rem; letter-spacing: 0.08em; color: var(--route); margin-bottom: 4px; }
.tweek-t { font-size: 0.82rem; color: rgba(247, 250, 249, 0.85); line-height: 1.3; }
.mission-cta { margin-top: 44px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.mission-cta p { color: var(--mission-ink-soft); font-size: 0.9rem; }

/* ---------- Method / trust (replaces fabricated testimonials) ---------- */
.method-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 44px; align-items: start; }
@media (max-width: 820px) { .method-grid { grid-template-columns: 1fr; } }
.pillar { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.pillar:last-child { border-bottom: none; }
.pillar-num { font-family: var(--font-signage); font-weight: 700; color: var(--route-deep); font-size: 0.85rem; flex: none; width: 28px; }
.pillar h3 { font-size: 1rem; margin-bottom: 4px; }
.pillar p { color: var(--ink-soft); font-size: 0.92rem; }

.founder-card {
  background: var(--paper-raised); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px; box-shadow: var(--shadow);
}
.founder-card svg.quote { width: 30px; height: 30px; color: var(--route-tint); margin-bottom: 14px; }
.founder-card p.founder-text { font-family: var(--font-display); font-size: 1.15rem; line-height: 1.5; color: var(--ink); }
.founder-who { display: flex; align-items: center; gap: 12px; margin-top: 20px; }
.founder-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--route-tint); display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 700; color: var(--route-deep); flex: none; }
.founder-who strong { display: block; font-size: 0.95rem; }
.founder-who span { display: block; font-size: 0.82rem; color: var(--ink-soft); }
.proof-space {
  margin-top: 20px; border: 1.5px dashed var(--line); border-radius: var(--radius-md);
  padding: 16px 18px; font-size: 0.84rem; color: var(--ink-soft); font-style: italic;
}

/* ---------- Pricing ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; align-items: stretch; }
@media (max-width: 900px) { .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; } }
.price-card {
  background: var(--paper-raised); border: 1.5px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; display: flex; flex-direction: column;
}
.price-card.is-highlight { border-color: var(--route); box-shadow: var(--shadow); position: relative; }
.price-flag {
  position: absolute; top: -13px; left: 24px; background: var(--ember); color: #fff;
  font-family: var(--font-signage); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 999px;
}
.price-name { font-family: var(--font-signage); letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.8rem; color: var(--ink-soft); }
.price-amount { font-family: var(--font-display); font-size: 2.4rem; font-weight: 700; margin-top: 10px; }
.price-amount span { font-family: var(--font-body); font-size: 0.95rem; font-weight: 400; color: var(--ink-soft); }
.price-note { font-size: 0.86rem; color: var(--ink-soft); margin-top: 6px; min-height: 20px; }
.price-feats { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 11px; flex: 1; }
.price-feats li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.92rem; }
.price-feats svg { width: 18px; height: 18px; flex: none; margin-top: 2px; color: var(--route-deep); }
.price-card .btn { margin-top: 24px; }
.pricing-foot { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 36px; color: var(--ink-soft); font-size: 0.9rem; }
.pricing-foot svg { width: 18px; height: 18px; color: var(--route-deep); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 44px auto 0; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; background: none; border: none; text-align: left; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 20px 4px; font-family: var(--font-body); font-size: 1.02rem; font-weight: 600; color: var(--ink);
}
.faq-q:focus-visible { outline: 3px solid var(--sky); outline-offset: -2px; }
.faq-q svg { flex: none; width: 20px; height: 20px; color: var(--route-deep); transition: transform 0.25s ease; }
.faq-item.is-open .faq-q svg { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.is-open .faq-a { max-height: 300px; }
.faq-a p { padding: 0 4px 22px; color: var(--ink-soft); font-size: 0.95rem; max-width: 62ch; }

/* ---------- Final CTA ---------- */
.final-cta { text-align: center; }
.final-cta .eyebrow { justify-content: center; }
.final-cta h2 { margin-top: 14px; }
.final-cta p.measure { margin: 16px auto 0; color: var(--ink-soft); font-size: 1.05rem; }
.final-cta .hero-ctas { justify-content: center; }
.final-cta .hero-trust { text-align: center; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); padding: 48px 0 32px; }
.foot-grid { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.foot-brand { max-width: 320px; }
.foot-brand p { color: var(--ink-soft); font-size: 0.88rem; margin-top: 10px; }
.foot-links { display: flex; gap: 48px; flex-wrap: wrap; }
.foot-col h4 { font-family: var(--font-signage); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.76rem; color: var(--ink-soft); margin-bottom: 12px; }
.foot-col a { display: block; font-size: 0.9rem; color: var(--ink); text-decoration: none; margin-bottom: 9px; }
.foot-col a:hover { color: var(--route-deep); }
.foot-legal {
  margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 0.82rem; color: var(--ink-soft);
}
.disclaimer {
  background: var(--sky-tint); border-radius: var(--radius-md); padding: 16px 20px;
  font-size: 0.84rem; color: var(--ink-soft); margin-top: 28px; line-height: 1.5;
}

/* ---------- Sticky mobile CTA ---------- */
.sticky-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50; padding: 12px 16px;
  background: color-mix(in srgb, var(--paper-raised) 94%, transparent); backdrop-filter: blur(10px);
  border-top: 1px solid var(--line); display: none;
  transform: translateY(120%); transition: transform 0.3s ease;
}
.sticky-cta.is-visible { transform: translateY(0); }
@media (max-width: 720px) { .sticky-cta { display: block; } body { padding-bottom: 0; } }

/* ---------- Focus ---------- */
a:focus-visible, button:focus-visible { outline: 3px solid var(--sky); outline-offset: 2px; }

/* tabular numerals wherever prices/weeks line up */
.price-amount, .tweek-n { font-variant-numeric: tabular-nums; }