/* ── VARIABLES & SETUP ── */
:root {
  --azul:        #1A56A0;
  --azul-oscuro: #0F3566;
  --amarillo:    #F5C518;
  --verde:       #2E7D32;
  --blanco:      #FFFFFF;
  --negro:       #111827;
  --gris:        #F9FAFB;
  --gris-claro:  #F3F4F6;
  --gris-md:     #6B7280;
  --borde:       #E5E7EB;
  --bento-radius: 28px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'DM Sans', sans-serif;
  color: var(--negro);
  background: var(--gris);
  line-height: 1.6;
}

/* ACCESIBILIDAD */
:focus-visible { outline: 3px solid var(--amarillo); outline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.skip-link {
  position: absolute; top: -100%; left: 1rem;
  background: var(--amarillo); color: var(--negro);
  padding: .5rem 1rem; font-weight: 700; z-index: 9999;
  transition: top .2s; border-radius: 8px;
}
.skip-link:focus { top: 1rem; }

/* ── NAVBAR ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.5rem;
}
.logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem; font-weight: 900;
  color: var(--azul-oscuro); text-decoration: none;
  display: flex; align-items: center; gap: 0.2rem;
}
.logo-dot { color: var(--amarillo); }
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  text-decoration: none; color: var(--negro);
  font-size: 0.95rem; font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--azul); }
.btn-nav {
  background: var(--negro); color: var(--blanco);
  padding: 0.6rem 1.5rem; border-radius: 12px;
  font-weight: 700; font-size: 0.95rem;
  text-decoration: none; transition: background 0.2s, transform 0.2s;
}
.btn-nav:hover { background: var(--azul-oscuro); transform: translateY(-2px); }

/* ── BENTO GRID BASE ── */
section { padding: 5rem 1.5rem 2rem; }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-label {
  display: inline-block;
  background: rgba(26, 86, 160, 0.1);
  color: var(--azul); font-weight: 700;
  font-size: 0.85rem; letter-spacing: 0.1em;
  text-transform: uppercase; padding: 0.4rem 1rem;
  border-radius: 20px; margin-bottom: 1rem;
}
h2 {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem; font-weight: 900;
  line-height: 1.1; margin-bottom: 1rem; color: var(--azul-oscuro);
}
.p-lead { color: var(--gris-md); font-size: 1.1rem; max-width: 700px; margin: 0 auto; }

.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.bento-item {
  background: var(--blanco);
  border-radius: var(--bento-radius);
  padding: 2.5rem;
  border: 1px solid var(--borde);
  display: flex; flex-direction: column;
  position: relative; overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.bento-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}

.bento-item.dark { background: var(--negro); color: var(--blanco); border: none; }
.bento-item.primary { background: linear-gradient(135deg, var(--azul-oscuro), var(--azul)); color: var(--blanco); border: none; }
.bento-item.accent { background: var(--amarillo); color: var(--negro); border: none; }
.bento-item.light-gray { background: var(--gris-claro); border: none; }

/* ── HERO BENTO (Desktop Layout) ── */
#inicio { padding-top: 8rem; }
.hero-main { grid-column: span 2; grid-row: span 2; justify-content: center; }
.hero-side-top { grid-column: span 2; grid-row: span 1; justify-content: center; }
.hero-side-bot1 { grid-column: span 1; grid-row: span 1; justify-content: center; align-items: center; text-align: center; }
.hero-side-bot2 { grid-column: span 1; grid-row: span 1; justify-content: center; align-items: center; text-align: center; }

.hero-main h1 {
  font-family: 'Playfair Display', serif;
  font-size: 3.5rem; font-weight: 900;
  line-height: 1.1; margin-bottom: 1.5rem;
}
.hero-main h1 span { color: var(--amarillo); }
.hero-main p { font-size: 1.1rem; color: rgba(255,255,255,0.85); margin-bottom: 2rem; max-width: 90%; }
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-primary {
  background: var(--amarillo); color: var(--negro);
  padding: 0.9rem 2rem; border-radius: 12px;
  font-weight: 700; font-size: 1rem;
  text-decoration: none; transition: transform 0.2s;
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-secondary {
  background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); 
  color: var(--blanco); padding: 0.9rem 2rem; border-radius: 12px;
  font-weight: 600; font-size: 1rem;
  text-decoration: none; transition: background 0.2s;
}
.btn-secondary:hover { background: rgba(255,255,255,0.2); }

.braille-pattern { font-family: monospace; font-size: 3.5rem; letter-spacing: 0.5rem; line-height: 1.2; margin-bottom: 1rem; color: rgba(255,255,255,0.9); }
.hero-side-top h2 { font-family: 'DM Sans'; font-size: 1.5rem; color: var(--blanco); margin-bottom: 0.5rem; font-weight: 700; }
.hero-side-top p { color: rgba(255,255,255,0.7); }

.bignum { font-family: 'Playfair Display', serif; font-size: 4rem; font-weight: 900; color: var(--azul-oscuro); line-height: 1; margin-bottom: 0.5rem; }

/* ── NORMATIVA BENTO ── */
.normativa-box { grid-column: span 1; }
.normativa-wide { grid-column: span 3; display: flex; align-items: center; gap: 2rem; }
.bento-item h3 { font-family: 'Playfair Display', serif; font-size: 1.3rem; margin-bottom: 0.8rem; }
.bento-item p { font-size: 0.95rem; color: var(--gris-md); }
.bento-item.dark p, .bento-item.primary p { color: rgba(255,255,255,0.8); }
.bento-item.dark h3, .bento-item.primary h3 { color: var(--blanco); }

.space-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.space-tag { background: var(--blanco); color: var(--negro); font-size: 0.85rem; font-weight: 600; padding: 0.5rem 1rem; border-radius: 20px; border: 1px solid var(--borde); }

/* ── SERVICIOS BENTO ── */
.service-box { grid-column: span 2; }
.service-icon { font-size: 2.5rem; margin-bottom: 1.5rem; }
.service-box ul { list-style: none; margin-top: 1.5rem; }
.service-box ul li { display: flex; align-items: center; gap: 0.6rem; font-size: 0.95rem; margin-bottom: 0.8rem; border-bottom: 1px solid var(--borde); padding-bottom: 0.8rem; }
.service-box ul li:last-child { border-bottom: none; }
.service-box ul li::before { content: '✓'; color: var(--azul); font-weight: 900; }

.dato-box { grid-column: span 4; display: flex; flex-direction: row; align-items: center; gap: 3rem; }
.dato-box .bignum { color: var(--blanco); font-size: 6rem; margin: 0; }

/* ── MATERIALES Y TECNOLOGIA ── */
.mat-box { grid-column: span 1; text-align: center; padding: 2rem 1.5rem; }
.mat-box .mat-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.tech-wide { grid-column: span 2; }

/* ── CONTACTO FORM BENTO ── */
.contact-info { grid-column: span 1; }
.contact-form { grid-column: span 3; }

.c-item { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 1.2rem; }
.c-item .icon { font-size: 1.5rem; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.5rem; }
.form-group label { font-weight: 600; font-size: 0.9rem; }
.form-group input, .form-group select, .form-group textarea {
  border: 1px solid var(--borde); border-radius: 12px;
  padding: 1rem 1.2rem; font-size: 1rem; font-family: inherit; background: var(--gris);
  transition: all 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--azul); box-shadow: 0 0 0 4px rgba(26,86,160,0.1); background: var(--blanco);
}
.form-full { grid-column: span 2; }
textarea { resize: vertical; min-height: 120px; }

.check-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.check-item { display: flex; align-items: center; gap: 0.8rem; cursor: pointer; font-size: 0.95rem; }
.check-item input { width: 1.2rem; height: 1.2rem; accent-color: var(--azul); cursor: pointer; }

.btn-submit {
  width: 100%; background: var(--negro); color: var(--blanco);
  border: none; border-radius: 12px; padding: 1.2rem;
  font-size: 1rem; font-weight: 700; cursor: pointer; transition: background 0.2s, transform 0.2s;
}
.btn-submit:hover { background: var(--azul); transform: translateY(-2px); }

/* ── FOOTER ── */
footer { background: var(--negro); color: var(--blanco); padding: 5rem 1.5rem 2rem; margin-top: 4rem; }
.footer-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 4rem; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 3rem; }
.footer-logo { font-family: 'Playfair Display', serif; font-size: 1.8rem; font-weight: 900; margin-bottom: 1rem; display: block; color: var(--blanco); text-decoration: none; }
.footer-logo span { color: var(--amarillo); }
footer h4 { font-size: 1.1rem; margin-bottom: 1.5rem; }
footer ul { list-style: none; }
footer ul li { margin-bottom: 0.8rem; }
footer ul a { color: rgba(255,255,255,0.7); text-decoration: none; transition: color 0.2s; }
footer ul a:hover { color: var(--amarillo); }
.footer-bottom { max-width: 1200px; margin: 2rem auto 0; display: flex; justify-content: space-between; align-items: center; font-size: 0.9rem; color: rgba(255,255,255,0.5); }
.footer-bottom a { color: rgba(255,255,255,0.5); text-decoration: none; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-main, .hero-side-top { grid-column: span 2; }
  .hero-side-bot1, .hero-side-bot2 { grid-column: span 1; }
  .normativa-wide, .dato-box, .service-box, .tech-wide, .contact-info, .contact-form, .form-full { grid-column: span 2; }
  .check-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .bento-grid { grid-template-columns: 1fr; }
  .hero-main, .hero-side-top, .hero-side-bot1, .hero-side-bot2, .normativa-box, .normativa-wide, .dato-box, .service-box, .mat-box, .tech-wide, .contact-info, .contact-form, .form-full { grid-column: span 1; }
  .form-grid { grid-template-columns: 1fr; }
  .dato-box { flex-direction: column; text-align: center; gap: 1.5rem; }
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  h2 { font-size: 2rem; }
  .hero-main h1 { font-size: 2.5rem; }
}