/* ==========================================================================
   NATAC NATURAL INGREDIENTS SA · Sociedad holding — Getafe (Madrid)
   Paleta: verde botánico profundo + verde hoja + papel cálido + tinta
   Tipografía: Spectral (display) · IBM Plex Sans (texto) · IBM Plex Mono (datos)
   ========================================================================== */

:root {
  --ink:      #123528;   /* verde botánico profundo (texto/fondos oscuros) */
  --green-2:  #1D4C3A;
  --green-3:  #3E7A4E;
  --leaf:     #8AAE3E;   /* verde hoja — acento */
  --leaf-dk:  #62862A;
  --paper:    #F5F3EA;   /* papel cálido (fondo) */
  --paper-2:  #ECE9DA;
  --line:     #DEDBC8;
  --muted:    #59604F;
  --text:     #20261E;   /* tinta cálida para cuerpo */
  --white:    #FCFBF5;

  --maxw: 1180px;
  --gut: clamp(20px, 5vw, 64px);

  --ff-display: "Spectral", Georgia, serif;
  --ff-body: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --ff-mono: "IBM Plex Mono", ui-monospace, monospace;

  --r: 4px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--ff-body);
  color: var(--text);
  background: var(--paper);
  line-height: 1.62;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
h1,h2,h3,h4 { font-family: var(--ff-display); font-weight: 500; line-height: 1.1; letter-spacing: -0.01em; margin: 0; color: var(--ink); }

.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut); }

.eyebrow {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--leaf-dk);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--leaf); }

.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--white); padding: 12px 18px; z-index: 200; }
.skip:focus { left: 12px; top: 12px; }

/* ================= HEADER ================= */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand .mark { flex: none; }
.brand b { font-family: var(--ff-display); font-weight: 600; font-size: 19px; display: block; line-height: 1; letter-spacing: .01em; }
.brand span { font-family: var(--ff-mono); font-size: 10px; letter-spacing: .16em; color: var(--muted); text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav-links a { text-decoration: none; font-size: 15px; color: var(--text); position: relative; padding: 6px 0; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--leaf); transition: width .28s ease; }
.nav-links a:hover::after, .nav-links a:focus-visible::after { width: 100%; }

.nav-cta { text-decoration: none; font-size: 14px; font-weight: 600; padding: 11px 22px; background: var(--ink); color: var(--white); border-radius: var(--r); transition: background .25s; }
.nav-cta:hover { background: var(--green-2); }

.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: var(--r); width: 44px; height: 40px; cursor: pointer; align-items: center; justify-content: center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { content: ""; display: block; width: 20px; height: 2px; background: var(--ink); position: relative; transition: .25s; }
.nav-toggle span::before { position: absolute; top: -6px; }
.nav-toggle span::after { position: absolute; top: 6px; }

/* ================= HERO (claro) ================= */
.hero { position: relative; background: var(--paper); overflow: hidden; }
.hero .wrap { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 40px; padding-block: clamp(60px, 9vw, 120px); }
.hero-copy { max-width: 620px; }
.hero h1 { font-size: clamp(38px, 6vw, 74px); margin: 22px 0 24px; font-weight: 400; line-height: 1.03; }
.hero h1 em { font-style: italic; color: var(--green-3); }
.hero p.lede { font-size: clamp(17px, 2vw, 20px); color: var(--muted); max-width: 540px; margin: 0 0 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-visual { position: relative; display: flex; justify-content: center; }
.hero-visual .phyllo { width: min(100%, 460px); height: auto; }
.hero-badge {
  position: absolute; left: 12px; bottom: 6px;
  font-family: var(--ff-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); background: color-mix(in srgb, var(--paper) 86%, transparent); padding: 6px 10px; border: 1px solid var(--line); border-radius: var(--r);
}

.btn { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; font-size: 15px; padding: 15px 28px; border-radius: var(--r); transition: transform .2s, background .25s, color .25s, border-color .25s; }
.btn-primary { background: var(--ink); color: var(--white); }
.btn-primary:hover { background: var(--green-2); }
.btn-ghost { border: 1px solid var(--ink); color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--white); }

.hero-meta { position: relative; z-index: 2; border-top: 1px solid var(--line); }
.hero-meta .wrap { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; padding-block: 26px; }
.hero-meta dt { font-family: var(--ff-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--leaf-dk); }
.hero-meta dd { margin: 6px 0 0; font-family: var(--ff-mono); font-size: 15px; color: var(--ink); }

/* ================= SECTIONS ================= */
section { padding-block: clamp(66px, 9vw, 118px); }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head h2 { font-size: clamp(30px, 4.4vw, 50px); margin-top: 18px; font-weight: 400; }
.section-head p { color: var(--muted); font-size: 18px; margin: 18px 0 0; }

/* Sociedad — lead */
.about { background: var(--paper); }
.about-lead {
  font-family: var(--ff-display); font-weight: 400; font-style: italic;
  font-size: clamp(23px, 3.4vw, 36px); line-height: 1.3; max-width: 940px; margin: 0; color: var(--ink);
}
.about-lead b { font-style: normal; font-weight: 600; color: var(--green-3); }

/* Grupo — banda verde profunda */
.group { background: var(--ink); color: var(--paper); }
.group .eyebrow { color: var(--leaf); }
.group .eyebrow::before { background: var(--leaf); }
.group h2 { color: var(--white); }
.group .section-head p { color: color-mix(in srgb, var(--paper) 80%, transparent); }
.pillars { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: color-mix(in srgb, var(--paper) 18%, transparent); border: 1px solid color-mix(in srgb, var(--paper) 18%, transparent); border-radius: var(--r); overflow: hidden; }
.pillar { background: var(--ink); padding: 32px 28px; }
.pillar .k { font-family: var(--ff-mono); font-size: 12px; color: var(--leaf); letter-spacing: .08em; }
.pillar h3 { color: var(--white); font-size: 22px; margin: 15px 0 10px; }
.pillar p { margin: 0; font-size: 15px; color: color-mix(in srgb, var(--paper) 80%, transparent); }

/* Actividad — tarjetas */
.activity { background: var(--paper); }
.cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--r); padding: 32px 28px; transition: transform .25s, box-shadow .25s, border-color .25s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 16px 34px -20px rgba(18,53,40,.55); border-color: var(--leaf); }
.card .ico { width: 40px; height: 40px; color: var(--green-3); margin-bottom: 18px; }
.card h3 { font-size: 21px; margin: 0 0 10px; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* Enfoque / gobierno */
.approach { background: var(--paper-2); }
.approach-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 40px 64px; }
.approach-item { border-top: 1px solid var(--line); padding-top: 22px; }
.approach-item h3 { font-size: 21px; margin-bottom: 10px; }
.approach-item p { margin: 0; font-size: 15.5px; color: var(--muted); }

/* Datos corporativos */
.facts { background: var(--paper); }
.facts-table { border-top: 1px solid var(--line); }
.facts-row { display: grid; grid-template-columns: 250px 1fr; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.facts-row dt { font-family: var(--ff-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.facts-row dd { margin: 0; font-size: 17px; }
.facts-row dd.code { font-family: var(--ff-mono); font-size: 16px; }

/* ================= CONTACTO ================= */
.contact { background: var(--ink); color: var(--paper); }
.contact .eyebrow { color: var(--leaf); }
.contact .eyebrow::before { background: var(--leaf); }
.contact h2 { color: var(--white); }
.contact-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 64px; align-items: start; }
.contact-info .lede { color: color-mix(in srgb, var(--paper) 82%, transparent); font-size: 18px; margin: 18px 0 34px; }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 24px; }
.contact-list li { display: grid; gap: 6px; }
.contact-list .lab { font-family: var(--ff-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--leaf); }
.contact-list a, .contact-list span { color: var(--paper); text-decoration: none; font-size: 16.5px; }
.contact-list a:hover { color: var(--leaf); }

.form-card { background: var(--paper); color: var(--text); border-radius: var(--r); padding: clamp(26px,4vw,42px); }
.field { margin-bottom: 20px; }
.field label { display: block; font-family: var(--ff-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%; font-family: var(--ff-body); font-size: 16px; color: var(--text);
  background: var(--white); border: 1px solid var(--line); border-radius: var(--r);
  padding: 13px 15px; transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--leaf); box-shadow: 0 0 0 3px color-mix(in srgb, var(--leaf) 30%, transparent); }
.field textarea { resize: vertical; min-height: 130px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.consent { display: flex; gap: 12px; align-items: flex-start; font-size: 13.5px; color: var(--muted); margin-bottom: 24px; }
.consent input { margin-top: 3px; accent-color: var(--leaf-dk); width: 17px; height: 17px; flex: none; }
.consent a { color: var(--leaf-dk); }
.form-card .btn-primary { width: 100%; justify-content: center; cursor: pointer; border: none; font-family: var(--ff-body); }
.form-note { font-size: 13px; color: var(--muted); margin: 16px 0 0; text-align: center; }
.form-status { font-size: 14.5px; margin: 16px 0 0; padding: 12px 16px; border-radius: var(--r); display: none; }
.form-status.ok { display: block; background: color-mix(in srgb, var(--leaf) 16%, transparent); color: var(--leaf-dk); border: 1px solid color-mix(in srgb, var(--leaf) 40%, transparent); }
.form-status.err { display: block; background: #f6e5db; color: #8a3d12; border: 1px solid #e2b48f; }

/* ================= FOOTER ================= */
.site-footer { background: var(--ink); color: color-mix(in srgb, var(--paper) 72%, transparent); border-top: 1px solid color-mix(in srgb, var(--paper) 14%, transparent); }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 44px; padding-block: 60px; }
.footer-brand b { font-family: var(--ff-display); color: var(--white); font-size: 20px; display: block; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; max-width: 340px; margin: 0; }
.footer-col h4 { font-family: var(--ff-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--leaf); font-weight: 400; margin-bottom: 18px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.footer-col a { text-decoration: none; font-size: 14.5px; color: color-mix(in srgb, var(--paper) 78%, transparent); }
.footer-col a:hover { color: var(--leaf); }
.footer-col address { font-style: normal; font-size: 14.5px; line-height: 1.7; }

.footer-legal-data { border-top: 1px solid color-mix(in srgb, var(--paper) 14%, transparent); padding-block: 26px; display: flex; flex-wrap: wrap; gap: 8px 28px; font-family: var(--ff-mono); font-size: 12px; color: color-mix(in srgb, var(--paper) 64%, transparent); }
.footer-legal-data span b { color: var(--paper); font-weight: 500; }

.footer-bottom { border-top: 1px solid color-mix(in srgb, var(--paper) 14%, transparent); padding-block: 22px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-bottom a { text-decoration: none; color: color-mix(in srgb, var(--paper) 74%, transparent); }
.footer-bottom a:hover { color: var(--leaf); }

/* ================= PÁGINAS LEGALES ================= */
.legal-hero { background: var(--ink); color: var(--paper); padding-block: clamp(56px,8vw,92px); }
.legal-hero .eyebrow { color: var(--leaf); }
.legal-hero .eyebrow::before { background: var(--leaf); }
.legal-hero h1 { color: var(--white); font-size: clamp(32px,5vw,54px); margin-top: 18px; font-weight: 400; }
.legal-hero p { color: color-mix(in srgb, var(--paper) 82%, transparent); margin: 16px 0 0; max-width: 620px; }
.legal-body { padding-block: clamp(52px,7vw,90px); }
.legal-body .wrap { max-width: 820px; }
.legal-body h2 { font-size: clamp(22px,3vw,30px); margin: 46px 0 16px; font-weight: 500; }
.legal-body h2:first-child { margin-top: 0; }
.legal-body h3 { font-size: 19px; margin: 28px 0 10px; }
.legal-body p, .legal-body li { color: #2c322a; font-size: 16.5px; }
.legal-body ul { padding-left: 20px; }
.legal-body li { margin-bottom: 8px; }
.legal-body .updated { font-family: var(--ff-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.legal-body a { color: var(--leaf-dk); }
.legal-data-box { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r); padding: 26px 28px; margin: 22px 0 8px; }
.legal-data-box dl { display: grid; grid-template-columns: 210px 1fr; gap: 10px 20px; margin: 0; }
.legal-data-box dt { font-family: var(--ff-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.legal-data-box dd { margin: 0; font-size: 15.5px; }

/* ================= RESPONSIVE ================= */
@media (max-width: 900px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav[data-open="true"] .nav-links { display: flex; flex-direction: column; position: absolute; top: 76px; left: 0; right: 0; background: var(--paper); border-bottom: 1px solid var(--line); padding: 22px var(--gut) 28px; gap: 18px; align-items: flex-start; }
  .nav[data-open="true"] .nav-cta { display: inline-flex; margin-top: 6px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .hero-visual .phyllo { width: min(72vw, 340px); }
  .hero-meta .wrap { grid-template-columns: 1fr 1fr; gap: 20px; }
  .pillars { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: 1fr; gap: 30px; }
  .contact-layout { grid-template-columns: 1fr; gap: 44px; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .facts-row { grid-template-columns: 1fr; gap: 6px; }
  .legal-data-box dl { grid-template-columns: 1fr; gap: 3px 0; }
  .legal-data-box dd { margin-bottom: 10px; }
}
@media (max-width: 560px) {
  .hero-meta .wrap { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

/* Filotaxis: aparición escalonada de nodos */
.phyllo circle { opacity: 0; animation: seed-in .6s ease forwards; }
@keyframes seed-in { from { opacity: 0; transform: scale(.2); } to { opacity: var(--o,.8); } }
@media (prefers-reduced-motion: reduce) { .phyllo circle { opacity: .85; animation: none; } }