@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --negro: #0a0a0f;
  --oscuro: #13131a;
  --card: #1a1a24;
  --borde: #2a2a3a;
  --azul: #3b82f6;
  --azul-claro: #60a5fa;
  --verde: #10b981;
  --rojo: #ef4444;
  --texto: #e2e8f0;
  --texto-suave: #94a3b8;
  --blanco: #ffffff;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--negro);
  color: var(--texto);
  min-height: 100vh;
  line-height: 1.6;
}

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.2rem 3rem;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--borde);
}

.nav-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.5rem;
  color: var(--blanco);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-logo span { color: var(--azul); }

.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { color: var(--texto-suave); text-decoration: none; font-size: 0.9rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--blanco); }

/* BOTONES */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px; border: none; cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem; font-weight: 500;
  text-decoration: none; transition: all 0.2s;
}

.btn-primary {
  background: var(--azul); color: var(--blanco);
}
.btn-primary:hover { background: var(--azul-claro); transform: translateY(-1px); }

.btn-secondary {
  background: transparent; color: var(--texto);
  border: 1px solid var(--borde);
}
.btn-secondary:hover { border-color: var(--azul); color: var(--azul-claro); }

.btn-verde { background: var(--verde); color: var(--blanco); }
.btn-verde:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-rojo { background: var(--rojo); color: var(--blanco); }
.btn-rojo:hover { opacity: 0.9; }

.btn-grande { padding: 1rem 2.5rem; font-size: 1rem; border-radius: 10px; }

/* CARDS */
.card {
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: 16px;
  padding: 2rem;
}

/* FORMULARIOS */
.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block; margin-bottom: 0.4rem;
  font-size: 0.85rem; font-weight: 500;
  color: var(--texto-suave);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 0.8rem 1rem;
  background: var(--oscuro);
  border: 1px solid var(--borde);
  border-radius: 8px;
  color: var(--texto);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--azul);
}

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

/* ALERTAS */
.alerta {
  padding: 0.9rem 1.2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.alerta-error { background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.alerta-exito { background: rgba(16,185,129,0.15); border: 1px solid rgba(16,185,129,0.3); color: #6ee7b7; }
.alerta-info  { background: rgba(59,130,246,0.15); border: 1px solid rgba(59,130,246,0.3); color: #93c5fd; }

/* BADGE */
.badge {
  display: inline-block; padding: 0.25rem 0.75rem;
  border-radius: 999px; font-size: 0.75rem; font-weight: 600;
}
.badge-verde { background: rgba(16,185,129,0.2); color: var(--verde); }
.badge-rojo  { background: rgba(239,68,68,0.2);  color: var(--rojo);  }
.badge-azul  { background: rgba(59,130,246,0.2); color: var(--azul-claro); }

/* TABLA */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.9rem 1rem; text-align: left; }
th { font-size: 0.8rem; font-weight: 600; color: var(--texto-suave); text-transform: uppercase; letter-spacing: 0.05em; border-bottom: 1px solid var(--borde); }
td { border-bottom: 1px solid rgba(42,42,58,0.5); font-size: 0.9rem; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* LOADER */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: var(--azul);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* UTILES */
.texto-centro { text-align: center; }
.texto-suave  { color: var(--texto-suave); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 1rem; }
.oculto { display: none !important; }

/* FONDO CON PUNTOS */
.bg-dots {
  background-image: radial-gradient(circle, rgba(59,130,246,0.08) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* SCROLLBAR */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--oscuro); }
::-webkit-scrollbar-thumb { background: var(--borde); border-radius: 3px; }

@media (max-width: 768px) {
  nav { padding: 1rem 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}