/* ===== Ethernet Switch Simulator Styles ===== */

.eth-switch-container {
  text-align: center;
  padding: 2rem 0;
  color: var(--text);
}

.eth-switch-container h1 {
  color: var(--primary);
  margin-bottom: 1.5rem;
}

/* Use platform button style, but allow fallback */
.eth-switch-container button {
  margin-top: 1rem;
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s;
  font-weight: 500;
}

.eth-switch-container button:hover {
  background: var(--primary-dark);
}

/* Port grid layout: 3 rows x 8 columns */
.port-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr); /* exactly 8 ports per row */
  gap: 0.75rem;
  margin: 2rem auto;
  max-width: 100%;
  width: 100%;
}


/* Each port */
.port {
  aspect-ratio: 1 / 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-size: 0.75rem; /* slightly bigger than before */
  border: 1px solid black;
  border-radius: 20px;
}


.port:hover {
  transform: translateY(-2px);
}

/* Selected (active forwarding ports) */
.selected {
  background: var(--primary);
  color: white;
  border-color: var(--primary-dark);
}

/* Shut (inactive) ports */
.shut {
  background: var(--bg);
  color: var(--text-light);
  border: 1px dashed var(--border);
  cursor: not-allowed;
  box-shadow: none;
  opacity: 0.6;
}

/* Frame info section */
.frame-info {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 1rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  max-width: 500px;
  margin: 1.5rem auto;
  text-align: left;
}

.frame-info p {
  margin: 0.5rem 0;
  color: var(--text);
}

/* Result section */
.result {
  margin-top: 2rem;
  font-size: 1.2em;
  font-weight: 600;
}

.result.success {
  color: var(--success);
}

.result.error {
  color: var(--error);
}

/* Dark mode tweaks (optional for more contrast) */
[data-theme="dark"] .port:hover {
  transform: translateY(-2px);
  background: var(--primary-dark);
}

[data-theme="dark"] .selected {
  background: var(--primary);
  color: white;
}

[data-theme="dark"] .shut {
  background: var(--card-bg);
  border-color: var(--border);
  color: var(--text-light);
  opacity: 0.5;
}

@media (max-width: 900px) {
  .port-grid {
    grid-template-columns: repeat(4, 1fr); /* 4 ports per row on small screens */
  }

  .port {
    font-size: 0.7rem;
  }
}

@media (max-width: 500px) {
  .port-grid {
    grid-template-columns: repeat(2, 1fr); /* 2 ports per row on very small screens */
  }
}