/* =========================================================
   BIOCHEMM - styles.css (Final Pro)
   ---------------------------------------------------------
   - Responsive / Accesible / Moderno 2026
   - Sin dependencias externas (CSP-friendly)
   ========================================================= */

/* ---------- Reset / Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

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

a{ color: inherit; text-decoration: none; }

p{ margin: 0 0 12px; }

h1,h2,h3{
  margin: 0 0 10px;
  line-height: 1.15;
  letter-spacing: -0.2px;
  color: var(--text);
}

/* ---------- Tokens (Brand) ---------- */
:root{
  --bg: #ffffff;
  --surface: #ffffff;
  --surface2: #f6f8fb;

  --text: #0f172a;
  --muted: #475569;

  /* BIOCHEMM (ajusta si quieres) */
  --brand: #76b61a;     /* verde principal */
  --brand2:#1f5a0d;     /* verde oscuro */
  --accent:#0ea5e9;

  --border: #e5e7eb;
  --border2:#dbe2ea;

  --shadow: 0 14px 34px rgba(2,6,23,.08);
  --shadow2: 0 10px 26px rgba(2,6,23,.10);

  --radius: 18px;
  --radius2: 14px;

  --container: 1120px;

  --transition: 220ms ease;
}

/* ---------- Accesibilidad ---------- */
.skip-link{
  position:absolute;
  left:-9999px;
  top:10px;
  background: #111827;
  color:#fff;
  padding:10px 12px;
  border-radius: 10px;
  z-index:9999;
}
.skip-link:focus{ left: 10px; outline: 2px solid #fff; outline-offset: 2px; }

:focus-visible{
  outline: 3px solid rgba(14,165,233,.8);
  outline-offset: 2px;
  border-radius: 10px;
}

/* ---------- Layout Helpers ---------- */
.container{
  width: min(var(--container), calc(100% - 32px));
  margin-inline: auto;
}

.row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
}

.grid{
  display:grid;
  gap: 16px;
}

.section{
  padding: 64px 0;
}

.section-tight{
  padding: 28px 0;
}

.section p{
  color: var(--muted);
  max-width: 72ch;
}

/* ---------- Navbar ---------- */
.nav{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid rgba(229,231,235,.85);
  backdrop-filter: blur(10px);
}

.nav .row{
  padding: 14px 0;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  min-width: 180px;
}

.brand img{
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.brand-text{
  font-weight: 900;
  letter-spacing: 0.6px;
  color: var(--brand2);
}

/* menu */
.menu{
  display:flex;
  align-items:center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.menu a{
  position: relative;
  padding: 10px 12px;
  border-radius: 12px;
  color: #111827;
  font-weight: 700;
  font-size: 14px;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

/* hover elegante */
.menu a:hover{
  background: rgba(118,182,26,.10);
  color: var(--brand2);
  transform: translateY(-1px);
}

/* activo (tu HTML usa class="active") */
.menu a.active{
  background: rgba(31,90,13,.10);
  color: var(--brand2);
}

/* subrayado moderno */
.menu a.active::after{
  content:"";
  position:absolute;
  left: 12px;
  right: 12px;
  bottom: 6px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand2), var(--brand));
  opacity: .9;
}

/* efecto cuando haces scroll: app.js puede agregar .nav--scrolled */
.nav.nav--scrolled{
  background: rgba(255,255,255,.96);
  box-shadow: 0 8px 18px rgba(2,6,23,.06);
}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border2);
  background: #fff;
  color: #111827;
  font-weight: 900;
  font-size: 14px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.btn:hover{
  transform: translateY(-1px);
  box-shadow: var(--shadow2);
  border-color: rgba(118,182,26,.35);
}

.btn.primary{
  background: linear-gradient(90deg, var(--brand2), var(--brand));
  color: #0b1d0e;
  border-color: rgba(118,182,26,.35);
}

.btn.primary:hover{
  box-shadow: 0 18px 38px rgba(2,6,23,.16);
}

/* ---------- Hero ---------- */
.hero{
  padding: 52px 0 24px;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(118,182,26,.12), rgba(255,255,255,0) 60%),
    radial-gradient(1200px 600px at 100% 0%, rgba(31,90,13,.10), rgba(255,255,255,0) 60%),
    linear-gradient(180deg, #ffffff, #fbfcfe);
}

.hero-grid{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 24px;
  align-items: center;
}

.hero h1{
  font-size: clamp(30px, 3.4vw, 44px);
}

.hero p{
  color: var(--muted);
  font-size: 16px;
  margin-top: 8px;
}

.hero-actions{
  margin-top: 16px;
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ---------- Cards / Secciones ---------- */
.section-grid{
  margin-top: 22px;
  grid-template-columns: repeat(3, 1fr);
}

.card{
  background: var(--surface);
  border: 1px solid rgba(226,232,240,.9);
  border-radius: var(--radius2);
  padding: 18px;
  box-shadow: 0 10px 24px rgba(2,6,23,.06);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.card:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: rgba(118,182,26,.25);
}

.card img{
  width:100%;
  height: 180px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 14px;
  border: 1px solid rgba(226,232,240,.9);
}

.card h3{
  font-size: 18px;
  margin: 6px 0 8px;
}

.card p{
  color: var(--muted);
  margin: 0;
}

/* Iconos en cards (Servicios/Sectores/Contacto) */
.card-icon{
  width: 48px;
  height: 48px;
  margin-bottom: 14px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius: 12px;
  background: rgba(118,182,26,.12);
  color: var(--brand2);
  border: 1px solid rgba(118,182,26,.18);
}

.card-icon svg{
  width: 26px;
  height: 26px;
}

/* ---------- Banners Pro ---------- */
.banner-card{
  border:1px solid rgba(226,232,240,.9);
  border-radius: var(--radius);
  overflow:hidden;
  background:#fff;
  box-shadow: var(--shadow);
  position: relative;
}

.banner-img{
  width:100%;
  display:block;
  object-fit: cover;
  transform: scale(1.02);
  filter: contrast(1.05) saturate(1.05);
  transition: transform 360ms ease, filter 360ms ease;
}

.banner-card:hover .banner-img{
  transform: scale(1.05);
  filter: contrast(1.08) saturate(1.10);
}

/* tamaños */
.banner-hero .banner-img{ height: 380px; }
.banner-wide .banner-img{ height: 380px; }
.banner-cta  .banner-img{ height: 380px; }

/* overlay suave en banners (hero + wide) */
.banner-hero::after,
.banner-wide::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg, rgba(31,90,13,.55), rgba(118,182,26,.10) 55%, rgba(255,255,255,0) 78%),
    linear-gradient(180deg, rgba(0,0,0,.18), rgba(0,0,0,0) 55%);
  pointer-events:none;
}

/* chip */
.banner-chip{
  position:absolute;
  top: 16px;
  left: 16px;
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.88);
  border: 1px solid rgba(226,232,240,.9);
  backdrop-filter: blur(8px);
  font-weight: 900;
  letter-spacing: .3px;
  color: var(--brand2);
  box-shadow: 0 10px 24px rgba(2,6,23,.08);
}

.banner-chip-dot{
  width:10px;
  height:10px;
  border-radius:999px;
  background: linear-gradient(90deg, var(--brand2), var(--brand));
}

/* CTA overlay */
.banner-cta .banner-overlay{
  position:absolute;
  inset:0;
  background:
    radial-gradient(60% 70% at 50% 40%, rgba(0,0,0,.12), rgba(0,0,0,.66)),
    linear-gradient(90deg, rgba(31,90,13,.30), rgba(118,182,26,.10));
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding: 24px;
}

.banner-overlay-content{
  max-width: 620px;
  color:#fff;
}

.banner-overlay-content h2{
  margin: 0 0 10px;
  color:#fff;
  font-size: 34px;
  letter-spacing: .2px;
}

.banner-overlay-content p{
  margin: 0 0 16px;
  color:#e5e7eb;
  font-size: 16px;
}

/* ---------- Footer ---------- */
.footer{
  padding: 22px 0;
  border-top: 1px solid rgba(229,231,235,.85);
  background: linear-gradient(180deg, #ffffff, #fbfcfe);
}

.footer-wrap{
  display:flex;
  align-items:flex-start;
  justify-content: space-between;
  gap: 16px;
}

.footer-left{
  display:flex;
  flex-direction: column;
  gap: 10px;
}

.footer-left > div:first-child{
  color: #111827;
  font-weight: 800;
}

.footer-links{
  display:flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items:center;
}

.footer-link{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(226,232,240,.9);
  background: #fff;
  color: #111827;
  font-weight: 800;
  font-size: 13px;
  transition: background var(--transition), transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.footer-link:hover{
  transform: translateY(-1px);
  background: rgba(118,182,26,.10);
  border-color: rgba(118,182,26,.25);
  box-shadow: 0 10px 22px rgba(2,6,23,.07);
}

.footer-right{
  color: var(--muted);
  font-weight: 800;
  font-size: 13px;
  padding-top: 6px;
  text-align: right;
}

/* ---------- WhatsApp Floating ---------- */
.wa-float{
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 999;
}

.wa-float a{
  width: 54px;
  height: 54px;
  border-radius: 999px;
  display:flex;
  align-items:center;
  justify-content:center;
  background: linear-gradient(90deg, var(--brand2), var(--brand));
  color: #0b1d0e;
  box-shadow: 0 18px 40px rgba(2,6,23,.22);
  border: 1px solid rgba(118,182,26,.35);
  cursor:pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.wa-float a:hover{
  transform: translateY(-2px);
  box-shadow: 0 24px 52px rgba(2,6,23,.26);
}

.wa-float svg{ width: 26px; height: 26px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .hero-grid{
    grid-template-columns: 1fr;
  }

  .banner-hero .banner-img,
  .banner-wide .banner-img,
  .banner-cta  .banner-img{
    height: 340px;
  }

  .section-grid{
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-wrap{
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-right{
    text-align: left;
    padding-top: 0;
  }
}

@media (max-width: 640px){
  .nav .row{
    padding: 12px 0;
    gap: 10px;
  }

  .brand{
    min-width: auto;
  }

  .brand-text{
    font-size: 14px;
  }

  .menu{
    gap: 6px;
  }

  .menu a{
    padding: 9px 10px;
    font-size: 13px;
  }

  .section{
    padding: 54px 0;
  }

  .section-grid{
    grid-template-columns: 1fr;
  }

  .card{
    padding: 16px;
  }

  .card img{
    height: 190px;
  }

  .banner-chip{
    top: 12px;
    left: 12px;
    padding: 9px 10px;
  }

  /* Footer centrado en móvil (como pediste) */
  .footer-wrap{
    align-items: center;
    text-align: center;
  }

  .footer-left{
    align-items: center;
  }

  .footer-links{
    justify-content: center;
  }

  .footer-right{
    width: 100%;
    text-align: center;
  }
}

/* ---------- Motion preference ---------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ transition: none !important; }
}
.hero-bullets{
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  font-weight: 700;
}

.hero-bullets li{
  margin: 6px 0;
}
/* ===== FOOTER AUTO-CENTER ===== */

/* Desktop: alineado y balanceado */
.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* Bloque izquierdo */
.footer-left {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Links del footer */
.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

/* Mobile: TODO centrado automáticamente */
@media (max-width: 768px) {
  .footer-wrap {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-left {
    align-items: center;
  }

  .footer-links {
    justify-content: center;
  }

  .footer-right {
    text-align: center;
  }
}
.footer-right {
  margin-left: auto;
}
/* ===== WHATSAPP FLOAT ANIMATION ===== */

/* Animación sutil tipo “respiración” */
@keyframes wa-pulse {
  0% {
    transform: scale(1);
    box-shadow: 0 18px 40px rgba(2, 6, 23, 0.22);
  }
  50% {
    transform: scale(1.06);
    box-shadow: 0 22px 46px rgba(2, 6, 23, 0.28);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 18px 40px rgba(2, 6, 23, 0.22);
  }
}

/* Aplicar animación solo en estado normal */
.wa-float a {
  animation: wa-pulse 2.8s ease-in-out infinite;
}

/* Al pasar el mouse: se detiene la animación y responde al hover */
.wa-float a:hover {
  animation: none;
  transform: scale(1.08);
}

/* Accesibilidad: usuarios que prefieren menos animación */
@media (prefers-reduced-motion: reduce) {
  .wa-float a {
  background: #25D366; /* Verde oficial WhatsApp */
  color: #fff;
}

.wa-float svg {
  width: 26px;
  height: 26px;
}
/* =========================
   FORMULARIO CONTACTO (PRO)
========================= */

.form-card{
  max-width: 900px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 20px 50px rgba(0,0,0,.10);
  border: 1px solid #e5e7eb;
}

.form-header{
  margin-bottom: 24px;
}

.form-header h2{
  margin-bottom: 6px;
}

.form-header p{
  color: #4b5563;
  font-weight: 600;
}

.contact-form{
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group{
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full{
  width: 100%;
}

.form-group label{
  font-weight: 800;
  font-size: 14px;
  color: #111827;
}

.form-group input,
.form-group textarea{
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid #d1d5db;
  font-size: 15px;
  transition: all .2s ease;
}

.form-group input:focus,
.form-group textarea:focus{
  outline: none;
  border-color: #22c55e;
  box-shadow: 0 0 0 3px rgba(34,197,94,.20);
}

.form-group textarea{
  resize: vertical;
}

.form-actions{
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.btn.outline{
  background: transparent;
  border: 2px solid #22c55e;
  color: #166534;
  font-weight: 800;
}

.form-note{
  font-size: 13px;
  color: #6b7280;
  font-weight: 600;
}

/* Responsive */
@media(max-width: 768px){
  .form-row{
    grid-template-columns: 1fr;
  }
  .form-actions{
    flex-direction: column;
  }
  .form-actions .btn{
    width: 100%;
    justify-content: center;
  }
}