/* ===== SERVITEC TELECOMUNICACIONES — Estilos Globales ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --azul:      #1B4FD8;
  --azul-claro:#3B82F6;
  --azul-dark: #1338A0;
  --negro:     #0F172A;
  --gris-dark: #1E293B;
  --gris:      #64748B;
  --gris-claro:#F1F5F9;
  --blanco:    #FFFFFF;
  --acento:    #38BDF8;
  --verde:     #10B981;
  --gradient:  linear-gradient(135deg, #0F172A 0%, #1B4FD8 60%, #38BDF8 100%);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--blanco);
  color: var(--negro);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.15;
}

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

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

/* ===== UTILIDADES ===== */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.section    { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }

.badge {
  display: inline-block;
  background: rgba(59,130,246,.12);
  color: var(--azul-claro);
  border: 1px solid rgba(59,130,246,.3);
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .35rem 1rem;
  margin-bottom: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 2rem;
  border-radius: .75rem;
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: all .25s;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--azul);
  color: var(--blanco);
}
.btn-primary:hover { background: var(--azul-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(27,79,216,.35); }
.btn-outline {
  background: transparent;
  color: var(--blanco);
  border-color: rgba(255,255,255,.5);
}
.btn-outline:hover { background: rgba(255,255,255,.1); border-color: var(--blanco); }
.btn-dark {
  background: var(--negro);
  color: var(--blanco);
}
.btn-dark:hover { background: var(--gris-dark); transform: translateY(-2px); }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: all .35s;
}
.navbar.scrolled {
  background: rgba(15,23,42,.97);
  backdrop-filter: blur(12px);
  padding: .65rem 0;
  box-shadow: 0 4px 20px rgba(0,0,0,.3);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.logo-img {
  height: 44px;
  width: auto;
  display: block;
  transition: height .3s;
}
.navbar.scrolled .logo-img { height: 38px; }
.footer-brand .logo-img { height: 48px; }
.logo-icon {
  width: 42px; height: 42px;
  background: var(--gradient);
  border-radius: .65rem;
  display: flex; align-items: center; justify-content: center;
}
.logo-text {
  line-height: 1.1;
}
.logo-text strong {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--blanco);
}
.logo-text span {
  font-size: .7rem;
  color: var(--acento);
  letter-spacing: .06em;
  text-transform: uppercase;
}
@media (max-width: 480px) {
  .logo-img { height: 36px; }
  .navbar.scrolled .logo-img { height: 32px; }
}
.nav-links {
  display: flex;
  align-items: center;
  gap: .25rem;
  list-style: none;
}
.nav-links a {
  color: rgba(255,255,255,.8);
  font-size: .9rem;
  font-weight: 500;
  padding: .5rem .9rem;
  border-radius: .5rem;
  transition: all .2s;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--blanco);
  background: rgba(255,255,255,.1);
}
.nav-cta {
  background: var(--azul) !important;
  color: var(--blanco) !important;
  padding: .5rem 1.2rem !important;
  border-radius: .6rem !important;
}
.nav-cta:hover { background: var(--azul-dark) !important; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--blanco);
  border-radius: 2px;
  transition: all .3s;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  background: var(--negro);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../img/finca.jpg');
  background-size: cover;
  background-position: center;
  opacity: .18;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,.06) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-glow {
  position: absolute;
  top: 20%; left: 10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(27,79,216,.25) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1.5rem;
}
.hero-dot { width: 8px; height: 8px; background: var(--verde); border-radius: 50%; animation: pulse-dot 2s infinite; }
@keyframes pulse-dot {
  0%,100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: .7; }
}
.hero-eyebrow span { color: var(--acento); font-size: .85rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
  color: var(--blanco);
  font-weight: 800;
  margin-bottom: 1.5rem;
}
.hero h1 em { font-style: normal; color: var(--acento); }
.hero p {
  color: rgba(255,255,255,.7);
  font-size: 1.15rem;
  line-height: 1.75;
  max-width: 580px;
  margin-bottom: 2.5rem;
}
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,.1);
  flex-wrap: wrap;
}
.hero-stat strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--blanco);
  font-family: 'Space Grotesk', sans-serif;
}
.hero-stat span { color: rgba(255,255,255,.55); font-size: .85rem; }

/* ===== SERVICIOS CARDS ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.service-card {
  background: var(--blanco);
  border: 1px solid #E2E8F0;
  border-radius: 1.25rem;
  padding: 2rem 1.75rem;
  transition: all .3s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity .3s;
}
.service-card:hover {
  border-color: var(--azul-claro);
  box-shadow: 0 12px 40px rgba(27,79,216,.12);
  transform: translateY(-4px);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, rgba(27,79,216,.1), rgba(56,189,248,.1));
  border-radius: .85rem;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.6rem;
}
.service-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: .6rem; color: var(--negro); }
.service-card p { color: var(--gris); font-size: .9rem; line-height: 1.65; }

/* ===== ABOUT / NOSOTROS ===== */
.about-section { background: var(--negro); color: var(--blanco); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about-img-wrap {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
}
.about-img-wrap img { width: 100%; height: 450px; object-fit: cover; }
.about-img-badge {
  position: absolute;
  bottom: 1.5rem; left: 1.5rem;
  background: rgba(15,23,42,.9);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: .75rem;
  padding: .85rem 1.25rem;
  display: flex; align-items: center; gap: .75rem;
}
.about-img-badge .icon { font-size: 1.4rem; }
.about-img-badge strong { display: block; color: var(--blanco); font-size: .9rem; }
.about-img-badge span  { color: rgba(255,255,255,.55); font-size: .75rem; }
.about-content h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); margin-bottom: 1.25rem; }
.about-content p { color: rgba(255,255,255,.7); line-height: 1.8; margin-bottom: 1rem; }
.about-features { display: flex; flex-direction: column; gap: .75rem; margin: 1.75rem 0; }
.about-feature {
  display: flex; align-items: flex-start; gap: .85rem;
}
.about-feature-icon {
  width: 32px; height: 32px; min-width: 32px;
  background: rgba(27,79,216,.2);
  border-radius: .5rem;
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem;
}
.about-feature-text strong { display: block; color: var(--blanco); font-size: .9rem; }
.about-feature-text span  { color: rgba(255,255,255,.55); font-size: .82rem; }

/* ===== SUCURSALES ===== */
.branches-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.branch-card {
  background: var(--negro);
  color: var(--blanco);
  border-radius: 1.5rem;
  overflow: hidden;
  position: relative;
}
.branch-img { height: 220px; overflow: hidden; }
.branch-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.branch-card:hover .branch-img img { transform: scale(1.05); }
.branch-body { padding: 2rem; }
.branch-tag {
  display: inline-block;
  background: var(--azul);
  color: var(--blanco);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .3rem .85rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.branch-body h3 { font-size: 1.3rem; margin-bottom: .5rem; }
.branch-body p  { color: rgba(255,255,255,.6); font-size: .88rem; margin-bottom: 1.25rem; line-height: 1.65; }
.branch-info { display: flex; flex-direction: column; gap: .5rem; }
.branch-info-item {
  display: flex; align-items: center; gap: .6rem;
  color: rgba(255,255,255,.65); font-size: .85rem;
}
.branch-info-item span:first-child { font-size: 1rem; }

/* ===== POR QUÉ ELEGIRNOS ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.why-card {
  text-align: center;
  padding: 2rem 1.5rem;
}
.why-num {
  font-size: 3rem;
  font-weight: 900;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--azul-claro);
  opacity: .3;
  line-height: 1;
  margin-bottom: .5rem;
}
.why-card h3 { font-size: 1.1rem; margin-bottom: .6rem; }
.why-card p  { color: var(--gris); font-size: .88rem; line-height: 1.65; }

/* ===== CTA BAND ===== */
.cta-band {
  background: var(--gradient);
  padding: 4rem 0;
  text-align: center;
}
.cta-band h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); color: var(--blanco); margin-bottom: .85rem; }
.cta-band p  { color: rgba(255,255,255,.8); margin-bottom: 2rem; }
.cta-btns { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

/* ===== FOOTER ===== */
footer {
  background: var(--negro);
  color: rgba(255,255,255,.6);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand p { font-size: .88rem; line-height: 1.75; margin-top: .85rem; max-width: 280px; }
.footer-col h4 { color: var(--blanco); font-size: .9rem; font-weight: 600; margin-bottom: 1.25rem; }
.footer-links { display: flex; flex-direction: column; gap: .6rem; }
.footer-links a { color: rgba(255,255,255,.55); font-size: .85rem; transition: color .2s; }
.footer-links a:hover { color: var(--acento); }
.footer-contact-item { display: flex; align-items: flex-start; gap: .6rem; font-size: .85rem; margin-bottom: .75rem; }
.footer-contact-item span:first-child { margin-top: 2px; }
.footer-bottom {
  padding-top: 1.75rem;
  display: flex; justify-content: space-between; align-items: center;
  font-size: .8rem;
  flex-wrap: wrap;
  gap: .5rem;
}
.social-links { display: flex; gap: .75rem; }
.social-link {
  width: 36px; height: 36px;
  background: rgba(255,255,255,.07);
  border-radius: .5rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  transition: background .2s;
}
.social-link:hover { background: var(--azul); }

/* ===== WHATSAPP FLOAT ===== */
.wa-float {
  position: fixed;
  bottom: 2rem; right: 2rem;
  z-index: 999;
  width: 56px; height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(37,211,102,.45);
  transition: transform .3s;
}
.wa-float:hover { transform: scale(1.12); }
.wa-float svg { width: 28px; height: 28px; fill: white; }

/* ===== SLIDER / CARRUSEL DE PROYECTOS ===== */
.slider-section { background: var(--negro); padding: 5rem 0; overflow: hidden; }
.slider {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
  background: var(--gris-dark);
}
.slider-track {
  display: flex;
  transition: transform .6s cubic-bezier(.4,0,.2,1);
  will-change: transform;
}
.slide {
  min-width: 100%;
  position: relative;
  aspect-ratio: 16/9;
  background: var(--gris-dark);
}
.slide img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.slide-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 2.5rem 2rem 1.75rem;
  background: linear-gradient(to top, rgba(15,23,42,.92) 0%, rgba(15,23,42,.55) 55%, transparent 100%);
  color: var(--blanco);
}
.slide-caption .tag {
  display: inline-block;
  background: var(--azul);
  color: #fff;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .28rem .8rem;
  border-radius: 999px;
  margin-bottom: .65rem;
}
.slide-caption h3 { font-size: clamp(1.1rem, 2.2vw, 1.6rem); margin-bottom: .25rem; }
.slide-caption p  { font-size: .9rem; color: rgba(255,255,255,.75); }
.slide-ilustrativa {
  position: absolute;
  top: 1rem; right: 1rem;
  z-index: 4;
  background: rgba(15,23,42,.7);
  backdrop-filter: blur(4px);
  color: rgba(255,255,255,.85);
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .03em;
  padding: .3rem .7rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.15);
}

/* flechas */
.slider-btn {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  z-index: 5;
  width: 48px; height: 48px;
  border: none;
  background: rgba(15,23,42,.55);
  backdrop-filter: blur(6px);
  color: #fff;
  border-radius: 50%;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s, transform .2s;
}
.slider-btn:hover { background: var(--azul); transform: translateY(-50%) scale(1.08); }
.slider-btn.prev { left: 1rem; }
.slider-btn.next { right: 1rem; }

/* puntos */
.slider-dots {
  display: flex;
  justify-content: center;
  gap: .5rem;
  margin-top: 1.5rem;
}
.slider-dot {
  width: 9px; height: 9px;
  border-radius: 999px;
  border: none;
  background: rgba(255,255,255,.25);
  cursor: pointer;
  transition: all .25s;
}
.slider-dot.active { background: var(--acento); width: 28px; }

/* miniaturas opcionales */
.slider-thumbs {
  display: flex;
  gap: .6rem;
  justify-content: center;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}
.slider-thumb {
  width: 64px; height: 44px;
  border-radius: .5rem;
  overflow: hidden;
  cursor: pointer;
  opacity: .45;
  border: 2px solid transparent;
  transition: all .2s;
  padding: 0; background: none;
}
.slider-thumb img { width: 100%; height: 100%; object-fit: cover; }
.slider-thumb.active { opacity: 1; border-color: var(--acento); }

@media (max-width: 640px) {
  .slide-caption { padding: 1.5rem 1.25rem 1.25rem; }
  .slider-btn { width: 38px; height: 38px; }
  .slider-thumbs { display: none; }
}

/* ===== COTIZADOR ===== */
.cot-wrap { display: grid; grid-template-columns: 1.3fr 1fr; gap: 2rem; align-items: start; }
.cot-panel { background: #fff; border: 1px solid #E2E8F0; border-radius: 1.25rem; padding: 1.75rem; }
.cot-tabs { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 1.5rem; }
.cot-tab {
  display: flex; align-items: center; gap: .5rem;
  padding: .65rem 1rem; border-radius: .75rem;
  border: 2px solid #E2E8F0; background: #fff; cursor: pointer;
  font-size: .88rem; font-weight: 600; color: var(--gris); transition: all .2s;
}
.cot-tab:hover { border-color: var(--azul-claro); }
.cot-tab.active { border-color: var(--azul); background: var(--azul); color: #fff; }
.cot-tab-ico { font-size: 1.15rem; }
#cotDesc { color: var(--gris); font-size: .9rem; margin-bottom: 1.5rem; }
.cot-campo { margin-bottom: 1.5rem; }
.cot-campo > label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: .6rem; color: var(--negro); }
.cot-stepper { display: flex; align-items: center; gap: .5rem; }
.cot-step {
  width: 42px; height: 42px; border: 2px solid #E2E8F0; background: #fff;
  border-radius: .6rem; font-size: 1.3rem; font-weight: 700; cursor: pointer;
  color: var(--azul); transition: all .15s; flex-shrink: 0;
}
.cot-step:hover { background: var(--azul); color: #fff; border-color: var(--azul); }
.cot-stepper input {
  width: 90px; height: 42px; text-align: center; border: 2px solid #E2E8F0;
  border-radius: .6rem; font-size: 1rem; font-weight: 700; color: var(--negro); outline: none;
}
.cot-stepper input:focus { border-color: var(--azul-claro); }
.cot-unidad { color: var(--gris); font-size: .85rem; }
.cot-campo-switch { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.cot-campo-switch small { display: block; color: var(--gris); font-size: .78rem; margin-top: .15rem; }
.cot-toggle { position: relative; display: inline-block; width: 52px; height: 30px; flex-shrink: 0; }
.cot-toggle input { opacity: 0; width: 0; height: 0; }
.cot-slider {
  position: absolute; inset: 0; background: #CBD5E1; border-radius: 999px;
  transition: .25s; cursor: pointer;
}
.cot-slider::before {
  content: ''; position: absolute; height: 22px; width: 22px; left: 4px; top: 4px;
  background: #fff; border-radius: 50%; transition: .25s;
}
.cot-toggle input:checked + .cot-slider { background: var(--azul); }
.cot-toggle input:checked + .cot-slider::before { transform: translateX(22px); }

/* resumen sticky */
.cot-resumen { background: var(--negro); color: #fff; border-radius: 1.25rem; padding: 1.75rem; position: sticky; top: 5rem; }
.cot-resumen h3 { font-size: 1.1rem; margin-bottom: 1rem; }
.cot-linea { display: flex; justify-content: space-between; gap: 1rem; font-size: .85rem; color: rgba(255,255,255,.75); padding: .45rem 0; border-bottom: 1px solid rgba(255,255,255,.08); }
.cot-linea strong { color: #fff; white-space: nowrap; }
.cot-linea.cot-sub { border-top: 1px dashed rgba(255,255,255,.2); margin-top: .3rem; }
.cot-rango-box { background: rgba(59,130,246,.12); border: 1px solid rgba(59,130,246,.3); border-radius: .85rem; padding: 1.1rem; margin: 1.25rem 0; text-align: center; }
.cot-rango-box .lbl { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--acento); }
#cotRango { display: block; font-family: 'Space Grotesk',sans-serif; font-size: 1.6rem; font-weight: 800; color: #fff; margin-top: .25rem; }
.cot-total-row { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 1rem; }
.cot-total-row .lbl { color: rgba(255,255,255,.7); font-size: .9rem; }
#cotTotal { font-family: 'Space Grotesk',sans-serif; font-size: 1.4rem; font-weight: 800; color: var(--acento); }
.cot-wa-btn {
  width: 100%; padding: .9rem; background: #25D366; color: #fff; border: none;
  border-radius: .75rem; font-size: .95rem; font-weight: 700; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: .5rem; transition: background .2s;
}
.cot-wa-btn:hover { background: #1DA851; }
#cotNota { font-size: .72rem; color: rgba(255,255,255,.5); margin-top: 1rem; line-height: 1.5; }
@media (max-width: 860px) { .cot-wrap { grid-template-columns: 1fr; } .cot-resumen { position: static; } }
.cot-ayuda { display:block; color:var(--gris); font-size:.78rem; margin-bottom:.5rem; }
.cot-select { width:100%; border:2px solid #E2E8F0; border-radius:.6rem; padding:.7rem .85rem; font-size:.9rem; font-family:'Inter',sans-serif; color:var(--negro); background:#fff; cursor:pointer; outline:none; }
.cot-select:focus { border-color:var(--azul-claro); }
.cot-linea.cot-acotizar strong { color:var(--acento); }

/* ── Formulario brief ── */
.brief-form { background:#fff; border:1px solid #E2E8F0; border-radius:1.25rem; padding:1.75rem; }
.brief-row { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.brief-field { margin-bottom:1rem; }
.brief-field label { display:block; font-size:.82rem; font-weight:600; color:var(--negro); margin-bottom:.35rem; }
.brief-field input, .brief-field select, .brief-field textarea {
  width:100%; border:2px solid #E2E8F0; border-radius:.6rem; padding:.7rem .85rem;
  font-size:.9rem; font-family:'Inter',sans-serif; color:var(--negro); outline:none; background:#fff;
}
.brief-field input:focus, .brief-field select:focus, .brief-field textarea:focus { border-color:var(--azul-claro); }
.brief-field textarea { resize:vertical; }
.brief-btns { display:flex; gap:.75rem; margin-top:.75rem; flex-wrap:wrap; }
.brief-btns .cot-wa-btn { flex:1; min-width:180px; }
.brief-mail-btn {
  flex:1; min-width:160px; padding:.9rem; background:var(--negro); color:#fff; border:none;
  border-radius:.75rem; font-size:.95rem; font-weight:700; cursor:pointer; transition:background .2s;
}
.brief-mail-btn:hover { background:var(--gris-dark); }
@media (max-width:560px){ .brief-row { grid-template-columns:1fr; } }

/* ===== SECCIÓN TÍTULO ===== */
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-header h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); color: var(--negro); margin-bottom: .75rem; }
.section-header p  { color: var(--gris); max-width: 560px; margin: 0 auto; line-height: 1.75; }
.section-header.light h2 { color: var(--blanco); }
.section-header.light p  { color: rgba(255,255,255,.65); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .about-grid    { grid-template-columns: 1fr; }
  .footer-grid   { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links     { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: rgba(15,23,42,.98); padding: 1rem 1.5rem 1.5rem; gap: .2rem; }
  .nav-links.open{ display: flex; }
  .nav-toggle    { display: flex; }
  .branches-grid { grid-template-columns: 1fr; }
  .why-grid      { grid-template-columns: 1fr 1fr; }
  .footer-grid   { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .why-grid      { grid-template-columns: 1fr; }
  .hero-stats    { gap: 1.5rem; }
}