/* ============================================
   Biohonouring · stylesheet v1
   Honra tu biología. Rinde sin colapsar.
   ============================================ */

:root {
  /* Color palette */
  --bg: #F8F4ED;
  --surface: #FFFFFF;
  --soft: #ECE5D5;
  --text: #1A1A1A;
  --text-muted: #6B6B6B;
  --primary: #1F3A2E;
  --primary-light: #2D5240;
  --accent: #B89368;
  --border: #E5E0D6;

  /* Typography */
  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 760px;
  --radius: 4px;
  --radius-lg: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 400;
}

img { max-width: 100%; height: auto; display: block; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--primary);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.015em;
}
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.85rem); }
h4 { font-size: 1.2rem; font-weight: 500; }

p { margin-bottom: 1rem; }
strong { color: var(--primary); font-weight: 600; }
em { color: var(--text); font-style: italic; }

a {
  color: var(--primary);
  text-decoration: none;
  transition: opacity 0.2s ease, color 0.2s ease;
}
a:hover { opacity: 0.7; }

/* ---------- Layout ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}
.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  background: rgba(248, 244, 237, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 100;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}
.nav-brand {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--primary);
  letter-spacing: -0.02em;
}
.nav-brand:hover { opacity: 1; }

.nav-links {
  display: flex;
  gap: 2.25rem;
  list-style: none;
  align-items: center;
}
.nav-links a {
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 400;
}
.nav-links a.active { color: var(--primary); font-weight: 500; }
.nav-cta {
  background: var(--primary);
  color: var(--bg) !important;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
}
.nav-cta:hover { opacity: 1; background: var(--primary-light); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--text);
  padding: 0.25rem;
}

/* ---------- Hero ---------- */
.hero {
  padding: 6rem 0 5rem;
}
.hero-pre,
.section-pre,
.product-tier {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-weight: 500;
}
.hero-headline {
  margin-bottom: 1.5rem;
  max-width: 18ch;
}
.hero-sub {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 60ch;
  line-height: 1.6;
}
.hero-cta-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-sans);
  text-align: center;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--primary);
  color: var(--bg);
}
.btn-primary:hover { background: var(--primary-light); opacity: 1; }
.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-secondary:hover { background: var(--primary); color: var(--bg); opacity: 1; }

/* ---------- Sections ---------- */
.section { padding: 5rem 0; }
.section-soft { background: var(--soft); }
.section-header {
  margin-bottom: 3rem;
  max-width: 50rem;
}
.section-title { margin-bottom: 1rem; }
.section-intro {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 55ch;
}

/* ---------- Manifesto quote ---------- */
.manifesto-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-style: italic;
  color: var(--primary);
  line-height: 1.4;
  padding-left: 1.5rem;
  border-left: 3px solid var(--accent);
  max-width: 50rem;
  margin: 2.5rem 0 1rem;
  font-weight: 400;
}

/* ---------- Pillars ---------- */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
}
.pillar {
  padding: 2rem;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.pillar-number {
  font-family: var(--font-serif);
  color: var(--accent);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  font-weight: 500;
}
.pillar h3 { margin-bottom: 1rem; font-size: 1.35rem; }
.pillar p { color: var(--text-muted); font-size: 0.97rem; margin-bottom: 0; }

/* ---------- Product cards ---------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
  display: flex;
  flex-direction: column;
  color: var(--text);
}
.product-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  opacity: 1;
}
.product-card .product-tier { margin-bottom: 1rem; }
.product-card h3 { margin-bottom: 1rem; font-size: 1.3rem; }
.product-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex: 1;
}
.product-meta {
  display: flex;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}
.product-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--primary);
}

/* ---------- About preview ---------- */
.about-preview {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: center;
}
.about-photo-placeholder {
  background: var(--soft);
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-style: italic;
  border: 1px dashed var(--border);
}

/* ---------- CTA section ---------- */
.cta-section {
  text-align: center;
}
.cta-section .section-pre,
.cta-section .section-title,
.cta-section .section-intro {
  margin-left: auto;
  margin-right: auto;
}
.cta-section .section-title { max-width: 28ch; }
.cta-section .section-intro { max-width: 55ch; margin-bottom: 2rem; }

/* ---------- Page header ---------- */
.page-header {
  padding: 5rem 0 3rem;
  border-bottom: 1px solid var(--border);
}
.page-header h1 { margin-bottom: 1rem; max-width: 22ch; }
.page-header-lead {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 60ch;
  line-height: 1.6;
}

/* ---------- Prose ---------- */
.prose {
  max-width: 68ch;
}
.prose p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  line-height: 1.75;
}
.prose h2 {
  margin: 3rem 0 1rem;
  font-size: clamp(1.5rem, 2.5vw, 1.95rem);
}
.prose h3 {
  margin: 2rem 0 0.75rem;
  font-size: 1.3rem;
}

/* ---------- Product detail ---------- */
.product-detail {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border);
}
.product-detail:last-of-type { border-bottom: none; }
.product-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.product-detail h2 { font-size: clamp(1.75rem, 3vw, 2.25rem); margin-bottom: 0.5rem; }

.product-spec {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 1.5rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}
.product-spec:last-child { border-bottom: none; }
.product-spec-label {
  font-weight: 500;
  color: var(--primary);
  font-size: 0.95rem;
}
.product-spec-value { color: var(--text); font-size: 0.97rem; line-height: 1.65; }
.product-spec-value ul { list-style: none; padding: 0; }
.product-spec-value li {
  padding-left: 1.25rem;
  position: relative;
  margin-bottom: 0.5rem;
}
.product-spec-value li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}
.contact-info h3 { font-size: 1.35rem; margin-bottom: 1rem; }
.contact-form {
  background: var(--surface);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 500;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s ease;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
}
.form-group textarea { min-height: 120px; resize: vertical; }

/* ---------- Footer ---------- */
.footer {
  background: var(--primary);
  color: var(--bg);
  padding: 4rem 0 2rem;
}
.footer a { color: var(--bg); opacity: 0.85; }
.footer a:hover { opacity: 1; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-bottom: 1rem;
  font-weight: 400;
  color: var(--bg);
}
.footer-tagline {
  color: var(--bg);
  opacity: 0.7;
  font-size: 0.95rem;
  max-width: 30ch;
}
.footer h4 {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1.25rem;
  font-weight: 500;
}
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 0.6rem; font-size: 0.95rem; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  font-size: 0.85rem;
  opacity: 0.6;
}

/* ---------- Primera Conversación entry banner ---------- */
.primera-conv {
  background: var(--soft);
  padding: 2.75rem 3rem;
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2.5rem;
  align-items: center;
}
.primera-conv-photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
  flex-shrink: 0;
  text-align: center;
  padding: 0 1rem;
}
.primera-conv h3 {
  font-size: 1.65rem;
  margin-bottom: 0.85rem;
}
.primera-conv-text p {
  color: var(--text-muted);
  font-size: 1.02rem;
  margin-bottom: 1.5rem;
  line-height: 1.65;
}
.primera-conv-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 1.5rem 2rem;
    gap: 1.25rem;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  }
  .nav-toggle { display: block; }
  .about-preview { grid-template-columns: 1fr; gap: 2rem; }
  .primera-conv { grid-template-columns: 1fr; gap: 1.5rem; padding: 2rem; text-align: center; }
  .primera-conv-photo { margin: 0 auto; }
  .primera-conv-cta { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .product-spec { grid-template-columns: 1fr; gap: 0.4rem; padding: 1rem 0; }
}

@media (max-width: 600px) {
  .hero { padding: 3.5rem 0 3rem; }
  .section { padding: 3rem 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .container { padding: 0 1.25rem; }
  .nav-inner { padding: 0 1.25rem; }
  .contact-form { padding: 1.75rem; }
  .btn { padding: 0.8rem 1.5rem; font-size: 0.95rem; }
}