:root {
  --tamiva-navy: #26285A;
  --tamiva-navy-dark: #16183a;
  --tamiva-orange: #EA5435;
  --tamiva-orange-dark: #c93f22;
  --bg: #f3f6fb;
  --text: #1f2a44;
  --muted: #5d6b86;
}

* { box-sizing: border-box; }

body {
  font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- Encabezado ---------- */
.hero {
  background: linear-gradient(135deg, var(--tamiva-navy-dark) 0%, var(--tamiva-navy) 60%, #3a3d8c 100%);
  padding: 3rem 0 3.5rem;
  position: relative;
  border-bottom: 5px solid var(--tamiva-orange);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(242,140,30,.14), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(255,255,255,.07), transparent 45%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-logo {
  display: block;
  width: 220px;
  max-width: 70%;
  height: auto;
  margin: 0 auto 1.5rem;
  filter: drop-shadow(0 4px 10px rgba(0,0,0,.35));
}
.hero-title {
  color: #fff;
  font-weight: 700;
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  letter-spacing: .3px;
  margin-bottom: .4rem;
}
.hero-subtitle {
  color: rgba(255,255,255,.8);
  font-size: clamp(.95rem, 2vw, 1.1rem);
  margin: 0;
}

/* ---------- Contenido ---------- */
.main-content {
  margin-top: 0;
  padding-top: 3rem;
  padding-bottom: 3rem;
  position: relative;
  z-index: 2;
  flex: 1 0 auto;
}
.sistemas-section { margin-bottom: 2.5rem; }
.section-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--tamiva-navy);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.5rem;
}
.section-title i { color: var(--tamiva-orange); font-size: 1.3rem; }
.section-title::before,
.section-title::after {
  content: "";
  height: 2px;
  width: clamp(24px, 12vw, 120px);
  background: linear-gradient(90deg, transparent, var(--tamiva-orange));
}
.section-title::after { transform: scaleX(-1); }

/* ---------- Tarjetas ---------- */
.sys-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  height: 100%;
  padding: 2rem 1.5rem 1.5rem;
  background: #fff;
  border-radius: 18px;
  border: 1px solid #e3e9f3;
  border-top: 4px solid var(--tamiva-navy);
  box-shadow: 0 4px 16px rgba(38,40,90,.08);
  text-decoration: none;
  color: inherit;
  transition: transform .25s ease, box-shadow .25s ease, border-top-color .25s ease;
}
.sys-card:hover, .sys-card:focus-visible {
  transform: translateY(-6px);
  box-shadow: 0 14px 32px rgba(38,40,90,.18);
  border-top-color: var(--tamiva-orange);
  color: inherit;
}
.sys-card:focus-visible { outline: 3px solid var(--tamiva-orange); outline-offset: 3px; }

.sys-icon {
  width: 78px;
  height: 78px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.1rem;
  color: #fff;
  background: linear-gradient(135deg, var(--tamiva-navy), #3a3d8c);
  box-shadow: 0 6px 14px rgba(38,40,90,.3);
  margin-bottom: 1.1rem;
  transition: background .25s ease;
}
.sys-card:hover .sys-icon {
  background: linear-gradient(135deg, var(--tamiva-orange), var(--tamiva-orange-dark));
}
.sys-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--tamiva-navy);
  margin-bottom: .5rem;
}
.sys-desc {
  font-size: .9rem;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 1.2rem;
  flex-grow: 1;
}
.sys-go {
  font-size: .85rem;
  font-weight: 600;
  color: var(--tamiva-orange-dark);
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}
.sys-card:hover .sys-go i { transform: translate(2px, -2px); }
.sys-go i { transition: transform .2s ease; }

.badge-dev {
  position: absolute;
  top: 12px;
  right: 12px;
  background: #fdece7;
  color: var(--tamiva-orange-dark);
  border: 1px solid #f6c0b3;
  font-size: .7rem;
  font-weight: 600;
  padding: .25rem .65rem;
  border-radius: 20px;
}

/* ---------- Pie ---------- */
.site-footer {
  background: var(--tamiva-navy-dark);
  color: rgba(255,255,255,.7);
  font-size: .85rem;
  padding: 1.2rem 0;
  border-top: 3px solid var(--tamiva-orange);
}

@media (max-width: 575.98px) {
  .hero { padding: 2rem 0 2.5rem; }
  
@media (prefers-reduced-motion: reduce) {
  .sys-card, .sys-icon, .sys-go i { transition: none; }
  .sys-card:hover { transform: none; }
}