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

:root {
  --bg-void: #050b14;
  --bg-panel: #0d1829;
  --bg-cell: #15243b;
  --border-line: #223854;

  --cyan-bright: #00e5ff;
  --cyan-dim: rgba(0, 229, 255, 0.1);
  --orange-alert: #ff7300;
  --orange-dim: rgba(255, 115, 0, 0.15);

  --text-pure: #ffffff;
  --text-muted: #8ba1b5;

  --font-sans: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-void);
  color: var(--text-pure);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  line-height: 1.6;
  background-image:
    linear-gradient(rgba(5, 11, 20, 0.88), rgba(5, 11, 20, 0.45)),
    url('resolvedor-costo-minimo/assets/images/background.webp'),
    linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, cover, 40px 40px, 40px 40px;
  background-position: center, center, center top;
  background-repeat: no-repeat, no-repeat, repeat, repeat;
}

.page {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 3rem;
}

header h1 {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-pure);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-shadow: 0 0 20px var(--cyan-dim);
}

header p {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 10px;
  letter-spacing: 0.05em;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

@media (max-width: 700px) {
  .portal-grid {
    grid-template-columns: 1fr;
  }
  header h1 {
    font-size: 1.5rem;
  }
}

.portal-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  background: var(--bg-panel);
  padding: 2.2rem 2rem;
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
  border-left: 3px solid var(--cyan-bright);
  position: relative;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.portal-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--border-line);
  pointer-events: none;
  transition: border-color 0.2s ease;
}

.portal-card:hover {
  transform: translateY(-4px);
  background: var(--bg-cell);
  border-left-color: var(--orange-alert);
}

.portal-card:hover::after {
  border-color: rgba(0, 229, 255, 0.45);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.4rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--border-line);
}

.card-icon {
  font-size: 1.8rem;
  color: var(--cyan-bright);
  background: var(--cyan-dim);
  padding: 10px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.portal-card:hover .card-icon {
  color: var(--orange-alert);
  background: var(--orange-dim);
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

.portal-card h2 {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-pure);
  margin-bottom: 0.75rem;
}

.portal-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  flex-grow: 1;
  margin-bottom: 1.8rem;
}

.card-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cyan-bright);
  padding-top: 1rem;
  border-top: 1px solid var(--border-line);
  transition: color 0.2s ease;
}

.portal-card:hover .card-action {
  color: var(--orange-alert);
}

.card-action .material-symbols-outlined {
  font-size: 1.2rem;
  transition: transform 0.2s ease;
}

.portal-card:hover .card-action .material-symbols-outlined {
  transform: translateX(4px);
}