/* ============================================
   MEDGEN — Sistema de diseño
   Paleta:
     --ink     #638c1c  (verde textos/títulos/botones — pedido por el cliente)
     footer bg #577719  (verde footer — pedido por el cliente, distinto del --ink)
     --paper   #F5F3EC  (papel cálido, fondo principal)
     --honey   #C98A3E  (miel, calidez / nutrición)
     --sage    #6E9A46  (verde medio, tomado del logo)
     --sage-2  #E3ECD8  (tinte claro del verde del logo)
     --slate   #6A737B  (gris del logo, texto secundario)
     --charcoal#2B2B26  (texto)
   Tipografía:
     Display: 'Poppins' (palo seco, geométrica, cálida — usada con restraint)
     Cuerpo:  'Inter' (clínica, legible)
     Datos:   'IBM Plex Mono' (fichas nutricionales / técnicas)
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --ink: #638c1c;
  --ink-70: #638c1cb3;
  --paper: #F5F3EC;
  --paper-2: #EAE6D8;
  --honey: #C98A3E;
  --honey-dark: #A8702E;
  --sage: #6E9A46;
  --sage-2: #E3ECD8;
  --slate: #6A737B;
  --charcoal: #2B2B26;
  --white: #FFFDF8;

  --font-display: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --max-w: 1180px;
  --radius: 10px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--paper);
  color: var(--charcoal);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
.container{ max-width: var(--max-w); margin:0 auto; padding: 0 28px; }
h1,h2,h3,h4{ font-family: var(--font-display); color: var(--ink); margin:0 0 0.4em; font-weight:600; letter-spacing:-0.005em; line-height:1.15; }
p{ margin:0 0 1em; }

:focus-visible{
  outline: 2px solid var(--honey);
  outline-offset: 3px;
}

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute; left:-999px; top:auto;
  background: var(--ink); color:var(--white); padding: 10px 16px; z-index:200;
}
.skip-link:focus{ left: 16px; top: 16px; }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top:0; z-index:100;
  background: var(--paper);
  border-bottom: 1px solid var(--paper-2);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding-top: 18px; padding-bottom: 18px;
}
.logo{
  display:flex; align-items:baseline; gap:8px;
  font-family: var(--font-display);
  font-size: 1.6rem; font-weight:700; color: var(--ink);
}
.logo small{
  font-family: var(--font-mono); font-size:0.6rem; letter-spacing:0.12em;
  color: var(--honey-dark); text-transform:uppercase; font-weight:600;
}
.nav{
  display:flex; gap: 6px; align-items:center;
}
.nav a{
  font-size:0.92rem; font-weight:600; padding: 10px 14px;
  color: var(--ink-70); position:relative;
}
.nav a:hover{ color: var(--ink); }
.nav a.active{ color: var(--ink); }
.nav a.active::after{
  content:""; position:absolute; left:14px; right:14px; bottom:4px; height:2px; background: var(--honey);
}
.nav-toggle{
  display:none; background:none; border:none; cursor:pointer; padding:8px;
}
.nav-toggle span{ display:block; width:24px; height:2px; background:var(--ink); margin:5px 0; }

.header-right{ display:flex; align-items:center; gap:6px; }

/* ---------- Botón carrito ---------- */
.cart-btn{
  position:relative; background:none; border:none; cursor:pointer;
  padding:8px; color: var(--ink); display:flex; align-items:center;
}
.cart-badge{
  position:absolute; top:2px; right:2px; min-width:16px; height:16px; padding:0 4px;
  background: var(--honey-dark); color:var(--white); border-radius:999px;
  font-family: var(--font-mono); font-size:0.65rem; line-height:16px; text-align:center;
}

/* ---------- Panel lateral del pedido ---------- */
.cart-overlay{
  position:fixed; inset:0; background: rgba(20,30,10,0.45); z-index:300;
}
.cart-drawer{
  position:fixed; top:0; right:0; bottom:0; width:100%; max-width:420px;
  background: var(--paper); z-index:301; padding: 24px; overflow-y:auto;
  box-shadow: -8px 0 24px rgba(0,0,0,0.15);
}
.cart-drawer-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:18px; }
.cart-close{
  background:none; border:none; font-size:1.8rem; line-height:1; cursor:pointer; color: var(--ink); padding:0 4px;
}
.cart-items{ margin-bottom:22px; display:flex; flex-direction:column; gap:12px; }
.cart-item{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  background: var(--white); border:1px solid var(--paper-2); border-radius: var(--radius); padding: 12px 14px;
}
.cart-item-info{ display:flex; flex-direction:column; gap:2px; min-width:0; }
.cart-item-badge{ font-family: var(--font-mono); font-size:0.68rem; color: var(--honey-dark); text-transform:uppercase; }
.cart-item-info strong{ font-size:0.92rem; color: var(--ink); }
.cart-item-controls{ display:flex; align-items:center; gap:8px; flex-shrink:0; }
.cart-qty{
  width:52px; padding:6px; border:1.5px solid var(--paper-2); border-radius: var(--radius); text-align:center; font-family: var(--font-body);
}
.cart-remove{
  background:none; border:none; font-size:1.3rem; line-height:1; color: var(--honey-dark); cursor:pointer; padding:2px 6px;
}

/* ---------- Agregar al pedido (ficha de producto) ---------- */
.nutri-add{ display:flex; gap:6px; margin-top:10px; }
.nutri-qty{
  width:44px; padding:6px; border:1.5px solid var(--paper-2); border-radius: var(--radius);
  text-align:center; font-family: var(--font-body); font-size:0.78rem;
}
.btn-add-cart{ flex:1; padding:8px 12px; font-size:0.74rem; }

/* ---------- Hero ---------- */
.hero{
  padding: 70px 0 60px;
}
.hero-grid{
  display:grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items:center;
}
.eyebrow{
  font-family: var(--font-mono); text-transform:uppercase; letter-spacing:0.14em;
  font-size:0.72rem; color: var(--honey-dark); font-weight:600; margin-bottom:14px; display:block;
}
.hero h1{
  font-size: clamp(2.1rem, 4vw, 3.1rem); line-height:1.1; margin-bottom:20px;
}
.hero p.lead{
  font-size: 1.08rem; color: var(--ink-70); max-width: 46ch;
}
.hero-actions{ display:flex; gap:14px; margin-top: 26px; flex-wrap:wrap; }

.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-family: var(--font-body); font-weight:600; font-size:0.92rem;
  padding: 13px 24px; border-radius: var(--radius);
  border:1.5px solid var(--ink); background: var(--ink); color: var(--white);
  cursor:pointer; transition: transform .15s ease, background .15s ease;
}
.btn:hover{ background:#4c6b15; }
.btn.btn-ghost{ background:transparent; color:var(--ink); }
.btn.btn-ghost:hover{ background: var(--sage-2); }

/* Signature: amino-acid chain diagram */
.molecule-wrap{ position:relative; }
.molecule-wrap svg{ width:100%; height:auto; }
.mol-node{ animation: pulse 4.5s ease-in-out infinite; transform-origin:center; }
.mol-node.d1{ animation-delay:0s; }
.mol-node.d2{ animation-delay:.6s; }
.mol-node.d3{ animation-delay:1.2s; }
.mol-node.d4{ animation-delay:1.8s; }
.mol-node.d5{ animation-delay:2.4s; }
@keyframes pulse{
  0%,100%{ opacity:0.85; }
  50%{ opacity:1; transform:scale(1.05); }
}
@media (prefers-reduced-motion: reduce){
  .mol-node{ animation:none; }
  html{ scroll-behavior:auto; }
}

/* ---------- Section heading ---------- */
.section-head{
  max-width: 60ch; margin: 0 0 40px;
}
.section-head .eyebrow{ margin-bottom:10px; }
.section{ padding: 70px 0; }
.section.alt{ background: var(--white); border-top:1px solid var(--paper-2); border-bottom:1px solid var(--paper-2); }

/* ---------- Pillar cards ---------- */
.pillars{
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.pillar-card{
  background: var(--white); border:1px solid var(--paper-2); border-radius: var(--radius);
  padding: 30px 26px; display:flex; flex-direction:column; gap:14px;
  transition: border-color .15s ease, transform .15s ease;
}
.pillar-card:hover{ border-color: var(--honey); transform: translateY(-3px); }
.pillar-num{
  font-family: var(--font-mono); font-size:0.75rem; color: var(--sage);
  border:1px solid var(--sage); width:34px; height:34px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
}
.pillar-card h3{ font-size:1.28rem; margin-bottom:4px; }
.pillar-card p{ color: var(--ink-70); font-size:0.95rem; flex:1; }
.pillar-card .link-more{
  font-family: var(--font-mono); font-size:0.78rem; font-weight:600;
  color: var(--honey-dark); text-transform:uppercase; letter-spacing:0.06em;
}

/* ---------- About split ---------- */
.about-split{
  display:grid; grid-template-columns: 1fr 1fr; gap:56px; align-items:center;
}
.about-split .placeholder-img{ aspect-ratio: 4/5; }

/* ---------- Nutrition-label component (signature) ----------
   Tamaños al ~70% del original, para que entren más fichas por pantalla */
.nutri-card{
  background: var(--white); border:2px solid var(--ink); border-radius: var(--radius); overflow:hidden;
  display:flex; flex-direction:column;
}
.nutri-card .img-slot{ border:none; border-bottom:2px solid var(--ink); aspect-ratio:4/3; }
.nutri-card .nutri-head{
  padding: 11px 13px 7px; border-bottom: 6px solid var(--ink);
}
.nutri-card .nutri-head .eyebrow{ margin-bottom:4px;}
.nutri-card .nutri-head h3{ font-size:1.05rem; margin-bottom:0; }
.nutri-card .nutri-body{ flex:1; padding: 10px 13px 13px; font-family: var(--font-mono); font-size:0.72rem; }
.nutri-row{
  display:flex; flex-wrap:wrap; justify-content:space-between; gap:2px 10px; padding:5px 0; border-bottom:1px solid var(--paper-2);
}
.nutri-row.total{ border-bottom:3px solid var(--ink); border-top:3px solid var(--ink); font-weight:700; }
.nutri-row span:last-child{ color: var(--ink); font-weight:600; }
.nutri-note{ font-family: var(--font-body); font-size:0.7rem; color: var(--ink-70); margin-top:9px; }
.nutri-card .nutri-foot{
  padding: 10px 13px; background: var(--sage-2); display:flex; justify-content:space-between; align-items:center; gap:9px;
}
.nutri-card .nutri-foot a{ font-weight:700; font-size:0.72rem; color:var(--ink); }

.todo-flag{
  display:inline-block; font-family:var(--font-mono); font-size:0.68rem;
  background: #FCE9D0; color:#8A5A16; padding:3px 8px; border-radius:2px; margin-top:8px;
}

/* ---------- Product listing ---------- */
.products-layout{
  display:grid; grid-template-columns: 260px 1fr; gap: 44px; align-items:start;
}
.product-nav{
  background: var(--white); border:1px solid var(--paper-2); border-radius: var(--radius); padding: 22px;
  position:sticky; top: 90px;
}
.product-nav h4{ font-size:0.85rem; text-transform:uppercase; letter-spacing:0.06em; margin-bottom:14px; }
.product-nav-group{ margin-bottom:18px; }
.product-nav-group > span{ display:block; font-weight:600; font-size:0.9rem; color:var(--ink); margin-bottom:6px; }
.product-nav-group ul{ list-style:none; margin:0; padding:0; }
.product-nav-group li{ margin-bottom:4px; }
.product-nav-group a{ font-size:0.86rem; color: var(--ink-70); }
.product-nav-group a:hover{ color: var(--honey-dark); }

.product-grid{
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}

/* ---------- Placeholder image block ---------- */
.placeholder-img{
  background: linear-gradient(135deg, var(--sage-2), var(--paper-2));
  border:1px dashed var(--sage); border-radius: var(--radius);
  display:flex; align-items:center; justify-content:center;
  color: var(--ink-70); font-family: var(--font-mono); font-size:0.75rem; text-align:center;
  padding: 20px; min-height:160px;
}

/* ---------- Image slot: reemplazo simple de fotos sin tocar código ----------
   Uso: <div class="img-slot" data-placeholder="Falta: img/archivo.jpg">
          <img src="img/archivo.jpg" alt="..." onerror="this.parentElement.classList.add('img-missing')">
        </div>
   Si el archivo img/archivo.jpg no existe, se muestra automáticamente un
   aviso en su lugar. En cuanto subís el archivo con ese mismo nombre, la
   foto real aparece sola — no hay que tocar el HTML. */
.img-slot{
  position:relative; overflow:hidden; background: var(--sage-2);
  border:1px solid var(--paper-2); border-radius: 22px;
}
.img-slot img{ width:100%; height:100%; object-fit:cover; display:block; }
.img-slot.img-missing img{ display:none; }
.img-slot.img-missing::before{
  content: attr(data-placeholder);
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  padding: 20px; text-align:center;
  font-family: var(--font-mono); font-size:0.72rem; color: var(--ink-70);
  background: linear-gradient(135deg, var(--sage-2), var(--paper-2));
  border:1px dashed var(--sage);
}

/* ---------- Contact ---------- */
.contact-grid{
  display:grid; grid-template-columns: 1fr 1fr; gap:48px;
}
.contact-card{ background: var(--white); border:1px solid var(--paper-2); border-radius: var(--radius); padding: 30px; }
.contact-info{ max-width: 420px; align-self: start; }
.contact-card dt{ font-family:var(--font-mono); text-transform:uppercase; font-size:0.72rem; color:var(--honey-dark); letter-spacing:0.08em; margin-top:18px; }
.contact-card dt:first-child{ margin-top:0; }
.contact-card dd{ margin:4px 0 0; font-size:1rem; }

.form-field{ margin-bottom:18px; }
.form-field label{ display:block; font-weight:600; font-size:0.88rem; margin-bottom:6px; }
.form-field input, .form-field textarea{
  width:100%; padding: 12px 14px; border:1.5px solid var(--paper-2); background:var(--white);
  font-family: var(--font-body); font-size:0.95rem; border-radius: var(--radius);
}
.form-field input:focus, .form-field textarea:focus{ border-color: var(--honey); }

/* ---------- Footer ---------- */
.site-footer{
  background: #577719; color: var(--sage-2); padding: 50px 0 28px; margin-top: 40px;
}
.footer-grid{
  display:grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 30px; padding-bottom:30px;
  border-bottom: 1px solid #ffffff22;
}
.site-footer h4{ color: var(--white); font-family:var(--font-mono); font-size:0.75rem; text-transform:uppercase; letter-spacing:0.08em; margin-bottom:14px; }
.footer-logo{ height:80px; width:auto; display:block; margin-bottom:18px; }
.brand-green{ color: #638c1c; }
.site-footer p, .site-footer a{ color: var(--sage-2); font-size:0.92rem; }
.site-footer a:hover{ color: var(--white); }
.footer-bottom{
  display:flex; justify-content:space-between; padding-top:20px; font-size:0.8rem; color:#ffffff88; flex-wrap:wrap; gap:8px;
}

/* ---------- Disclaimer band ---------- */
.disclaimer{
  background: var(--paper-2); padding: 26px 0; font-size:0.85rem; color: var(--ink-70);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .hero-grid, .about-split, .contact-grid{ grid-template-columns: 1fr; }
  .about-split{ gap: 30px; }
  .about-split > *:first-child{ order:2; }
  .pillars{ grid-template-columns: 1fr; }
  .products-layout{ grid-template-columns: 1fr; }
  .product-nav{ position:static; }
  .hero-spacer{ display:none; }
  .product-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .nav{
    display:none; position:absolute; top:100%; left:0; right:0;
    background: var(--paper); flex-direction:column; border-bottom:1px solid var(--paper-2);
    padding: 8px 0;
  }
  .nav.open{ display:flex; }
  .nav-toggle{ display:block; }
}