body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-bg-dark);
  color: var(--color-text);
  padding: var(--space-6) var(--space-4);
}

.container {
  width: 100%;
  max-width: 1120px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-12);
}

/* ===== BRANDING ===== */
.left {
  min-width: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  color: var(--color-text);
  margin-bottom: var(--space-5);
  backdrop-filter: blur(10px);
}

.badge__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.18);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  color: var(--color-text-strong);
}

.hero-title .brand {
  font-size: var(--fs-3xl);
}

.hero-title .brand__tagline {
  letter-spacing: 0.12em;
}

.hero-title__line {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-medium);
  line-height: var(--lh-snug);
  color: #cbd5f5;
}

.subtitle {
  font-size: var(--fs-md);
  line-height: var(--lh-base);
  color: #cbd5f5;
  max-width: 460px;
  margin-bottom: var(--space-6);
}

.hero-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.hero-points li {
  position: relative;
  padding-left: var(--space-6);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gradient-primary-soft);
  opacity: 0.85;
}

/* ===== CARD ===== */
.card {
  background: var(--color-glass-light);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: var(--color-text-on-light);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: var(--shadow-lg);
  animation: fadeIn 0.6s ease;
}

.card-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.card-header h2 {
  font-size: var(--fs-xl);
  color: var(--color-text-on-light);
}

.card-header p {
  font-size: var(--fs-sm);
  color: var(--color-text-muted-on-light);
  margin-top: var(--space-2);
}

/* ===== OPCIONES ===== */
.options {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.option {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  text-decoration: none;
  border: 1px solid var(--color-border-light);
  background: var(--color-surface-light);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
              background var(--transition-base), border-color var(--transition-base);
}

.option:hover,
.option:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-light);
}

.option-icon {
  font-size: 24px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: #eef2ff;
  flex-shrink: 0;
}

.option-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.option-text strong {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-text-on-light);
}

.option-text span {
  font-size: var(--fs-xs);
  color: var(--color-text-muted-on-light);
}

.arrow {
  font-size: var(--fs-lg);
  color: #94a3b8;
  transition: transform var(--transition-base);
}

.option:hover .arrow,
.option:focus-visible .arrow {
  transform: translateX(4px);
  color: var(--color-primary);
}

.option--docente .option-icon { background: #eef2ff; }
.option--docente:hover {
  background: #f5f7ff;
  border-color: var(--color-primary);
}

.option--estudiante .option-icon { background: #f0fdf4; }
.option--estudiante:hover {
  background: #f6fef9;
  border-color: var(--color-good);
}

/* ===== FOOTER ===== */
.card-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-light);
  font-size: var(--fs-xs);
  color: #94a3b8;
  text-align: center;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
  .container {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }

  .badge,
  .hero-title,
  .subtitle,
  .hero-points {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-points {
    display: inline-flex;
    text-align: left;
  }

  .hero-title .brand,
  .hero-title__line {
    justify-content: center;
  }

  .hero-title {
    align-items: center;
  }
}

@media (max-width: 540px) {
  .hero-title .brand { font-size: var(--fs-2xl); }
  .hero-title__line { font-size: var(--fs-xl); }
  .card { padding: var(--space-6); }
}