:root {
  color-scheme: light dark;
  --bg: radial-gradient(circle at top, #102348, #050b19 70%);
  --fg: #e2e8f0;
  --fg-muted: #9ca3af;
  --card: rgba(15, 23, 42, 0.82);
  --card-border: rgba(56, 189, 248, 0.22);
  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --shadow: 0 24px 45px rgba(2, 6, 23, 0.45);
  --radius: 18px;
  --font: "Segoe UI", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
}

.portal-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.portal-header {
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.85), rgba(15, 23, 42, 0.95));
  box-shadow: 0 18px 40px rgba(8, 11, 32, 0.55);
}

.portal-header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 32px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.portal-brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.portal-logo {
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  text-decoration: none;
}

.portal-logo:hover,
.portal-logo:focus {
  color: #e0f2fe;
}

.portal-tagline {
  margin: 0;
  font-size: 0.95rem;
  color: rgba(226, 232, 240, 0.78);
}

.portal-actions {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.portal-badge {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.25);
  border: 1px solid rgba(34, 197, 94, 0.45);
  font-weight: 600;
  font-size: 0.9rem;
  color: #bbf7d0;
}

.portal-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.5);
  color: var(--fg);
  text-decoration: none;
  font-weight: 600;
  background: rgba(56, 189, 248, 0.18);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.portal-button.primary {
  background: var(--accent);
  color: #031020;
  border-color: transparent;
}

.portal-button:hover,
.portal-button:focus {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(14, 165, 233, 0.35);
  text-decoration: none;
}

.portal-main {
  flex: 1 1 auto;
  max-width: 1100px;
  margin: 0 auto;
  padding: 36px 32px 64px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.portal-intro h1 {
  margin: 0 0 10px;
  font-size: 2rem;
}

.portal-intro p {
  margin: 0;
  font-size: 1.05rem;
  color: var(--fg-muted);
}

.portal-status {
  min-height: 24px;
  font-size: 0.95rem;
}

.portal-empty {
  background: rgba(15, 23, 42, 0.68);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow);
}

.portal-empty h2 {
  margin-top: 0;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(280px, 1fr));
  gap: 24px;
}

@media (max-width: 1100px) {
  .portal-grid {
    grid-template-columns: repeat(2, minmax(260px, 1fr));
  }
}

.portal-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.portal-card header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.portal-card h3 {
  margin: 0;
  font-size: 1.35rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.portal-card h4 {
  margin: 0;
  font-size: 1.05rem;
  color: rgba(224, 231, 255, 0.92);
}

.portal-card p {
  margin: 0;
  color: var(--fg-muted);
  font-size: 0.95rem;
}

.portal-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.portal-links a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.portal-links a:hover,
.portal-links a:focus {
  text-decoration: underline;
}

.portal-layer-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.portal-layer-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.portal-layer-item {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(226, 232, 240, 0.12);
  background: rgba(8, 47, 73, 0.45);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.portal-layer-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.portal-layer-name {
  font-weight: 600;
  font-size: 1rem;
  width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.portal-layer-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.portal-layer-actions a {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.28);
  color: var(--fg);
  text-decoration: none;
}

.portal-layer-actions button {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.28);
  color: var(--fg);
  cursor: pointer;
}

.portal-layer-actions a:hover,
.portal-layer-actions a:focus {
  background: rgba(14, 165, 233, 0.2);
}

.portal-layer-actions button:hover,
.portal-layer-actions button:focus {
  background: rgba(14, 165, 233, 0.2);
}

.portal-layer-meta {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

.portal-footer {
  margin-top: auto;
  background: rgba(4, 7, 17, 0.9);
  border-top: 1px solid rgba(30, 41, 59, 0.65);
}

.portal-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 32px 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: rgba(226, 232, 240, 0.8);
}

.portal-footer-links {
  display: inline-flex;
  gap: 16px;
}

.portal-footer a {
  color: rgba(148, 163, 184, 0.95);
  text-decoration: none;
}

.portal-footer a:hover,
.portal-footer a:focus {
  color: var(--accent);
  text-decoration: underline;
}

@media (max-width: 720px) {
  .portal-header-inner {
    padding: 24px 20px;
  }
  .portal-main {
    padding: 28px 20px 56px;
  }
  .portal-grid {
    grid-template-columns: 1fr;
  }
}