/* ===========================
   SystComp - Estilos generales
   =========================== */

:root {
  --azul: #1a3a6b;
  --azul-claro: #2a5ca0;
  --verde: #33cc33;
  --verde-oscuro: #2a7a2a;
  --negro: #111111;
  --gris-claro: #f4f6f9;
  --gris-texto: #555;
  --blanco: #ffffff;
  --radius: 10px;
  --sombra: 0 4px 18px rgba(0,0,0,0.08);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  color: var(--gris-texto);
  line-height: 1.6;
  background: var(--blanco);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 80px 0; }
.section-alt { background: var(--gris-claro); }

.section-title {
  text-align: center;
  font-size: 2.2rem;
  color: var(--azul);
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--gris-texto);
  max-width: 720px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
}

.tag-verde {
  color: var(--verde-oscuro);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.85rem;
  display: block;
  text-align: center;
  margin-bottom: 8px;
}

/* ===== Botones ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  transition: all .25s ease;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--verde);
  color: var(--blanco);
  box-shadow: 0 4px 14px rgba(51,204,51,0.35);
}
.btn-primary:hover {
  background: var(--verde-oscuro);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border-color: var(--blanco);
  color: var(--blanco);
}
.btn-outline:hover {
  background: var(--blanco);
  color: var(--azul);
}

/* ===== Header / Navbar ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--blanco);
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.navbar .logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--azul);
}
.navbar .logo img { height: 44px; width: auto; }
.navbar .logo span small {
  display: block;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--verde-oscuro);
}

.nav-links {
  display: flex;
  gap: 32px;
  font-weight: 600;
  color: var(--azul);
}
.nav-links a { transition: color .2s; }
.nav-links a:hover { color: var(--verde-oscuro); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}
.nav-toggle span {
  width: 26px; height: 3px;
  background: var(--azul);
  border-radius: 2px;
}

/* ===== Hero ===== */
.hero {
  margin-top: 76px;
  background: linear-gradient(135deg, var(--azul) 0%, var(--azul-claro) 100%);
  color: var(--blanco);
  padding: 110px 0;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  right: -120px; bottom: -120px;
  width: 360px; height: 360px;
  background: var(--verde);
  opacity: 0.18;
  border-radius: 50%;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.hero-text { flex: 1 1 480px; }

.hero-text .tag-verde { text-align: left; color: var(--verde); }

.hero-text h1 {
  font-size: 2.8rem;
  margin-bottom: 18px;
  line-height: 1.25;
}

.hero-text p {
  color: #dbe6f5;
  font-size: 1.1rem;
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-image {
  flex: 1 1 320px;
  display: flex;
  justify-content: center;
}
.hero-image img {
  max-width: 320px;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.35));
}

/* ===== Nosotros ===== */
.nosotros-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.nosotros-card {
  background: var(--blanco);
  border-radius: var(--radius);
  box-shadow: var(--sombra);
  padding: 32px 26px;
  border-top: 4px solid var(--verde);
}

.nosotros-card h3 {
  color: var(--azul);
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.nosotros-card .icono {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--verde);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blanco);
  font-size: 1.5rem;
  margin-bottom: 16px;
}

/* ===== Servicios ===== */
.servicios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.servicio-card {
  background: var(--blanco);
  border-radius: var(--radius);
  box-shadow: var(--sombra);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}
.servicio-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.12);
}

.servicio-card .servicio-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 22px 0;
}

.servicio-card .icono-circulo {
  width: 46px; height: 46px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--verde);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blanco);
  font-size: 1.4rem;
}

.servicio-card h3 {
  color: var(--azul);
  font-size: 1.08rem;
}

.servicio-card ul {
  padding: 16px 22px 24px;
  font-size: 0.92rem;
}

.servicio-card ul li {
  padding: 5px 0;
  padding-left: 18px;
  position: relative;
}
.servicio-card ul li::before {
  content: "▸";
  color: var(--verde-oscuro);
  position: absolute;
  left: 0;
}

/* ===== DannaSystem destacado ===== */
.danna-banner {
  background: var(--negro);
  color: var(--blanco);
  border-radius: var(--radius);
  padding: 56px 40px;
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.danna-banner .danna-logo {
  flex: 0 0 auto;
  width: 96px; height: 96px;
  border-radius: 22px;
  background: var(--blanco);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}
.danna-banner .danna-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.danna-banner .danna-text { flex: 1 1 360px; }

.danna-banner h3 {
  font-size: 1.6rem;
  margin-bottom: 8px;
}
.danna-banner .danna-sub {
  color: var(--verde);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 10px;
  display: block;
}
.danna-banner p { color: #c8c8c8; max-width: 560px; margin-bottom: 0; }

.danna-banner .danna-cta { flex: 0 0 auto; }

/* ===== Contacto ===== */
.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
@media (max-width: 820px) {
  .contacto-grid { grid-template-columns: 1fr; }
}

.contacto-info .item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 26px;
}
.contacto-info .icono-circulo {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--verde);
  color: var(--blanco);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}
.contacto-info h4 { color: var(--azul); margin-bottom: 4px; }

.form-contacto {
  background: var(--blanco);
  border-radius: var(--radius);
  box-shadow: var(--sombra);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-contacto input,
.form-contacto textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
}
.form-contacto input:focus,
.form-contacto textarea:focus {
  outline: none;
  border-color: var(--verde);
}
.form-contacto button { align-self: flex-start; cursor: pointer; }

.form-contacto .hidden-field { display: none; }

/* ===== Footer ===== */
.footer {
  background: var(--negro);
  color: #ccc;
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.footer-brand img { height: 44px; }
.footer-brand span {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--blanco);
}
.footer h4 {
  color: var(--blanco);
  margin-bottom: 14px;
  font-size: 1rem;
}
.footer ul li { padding: 4px 0; font-size: 0.9rem; }
.footer ul li a:hover { color: var(--verde); }

.footer-sub {
  color: #888;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-bottom {
  border-top: 1px solid #2c2c2c;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: #888;
}

/* ===== Responsive ===== */
@media (max-width: 880px) {
  .nav-links {
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--blanco);
    flex-direction: column;
    padding: 16px 24px;
    gap: 14px;
    box-shadow: 0 6px 14px rgba(0,0,0,0.08);
    display: none;
  }
  .nav-links.active { display: flex; }
  .nav-toggle { display: flex; }
  .hero-text h1 { font-size: 2.1rem; }
  .section-title { font-size: 1.7rem; }
  .danna-banner { text-align: center; justify-content: center; }
  .danna-banner .danna-text { text-align: center; }
}