:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293b;
  --bg-card-hover: #26354a;
  --border-color: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-color: #38bdf8;
  --accent-glow: rgba(56, 189, 248, 0.15);
  --accent-hover: #0ea5e9;
  --badge-bg: #0369a1;
  --badge-text: #e0f2fe;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: all 0.2s ease-in-out;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent-color: #0284c7;
    --accent-glow: rgba(2, 132, 199, 0.1);
    --accent-hover: #0369a1;
    --badge-bg: #e0f2fe;
    --badge-text: #0369a1;
  }
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.portal-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Header */
.portal-header {
  margin-bottom: 2.5rem;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-icon {
  font-size: 2.5rem;
  line-height: 1;
}

.brand h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand .subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.2rem;
}

.header-badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  background-color: var(--badge-bg);
  color: var(--badge-text);
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border-color);
}

/* Controls bar */
.controls-bar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.search-box {
  position: relative;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-box input {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.8rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  transition: var(--transition);
}

.search-box input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.tags-filter {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag-pill {
  padding: 0.4rem 0.9rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.tag-pill:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
}

.tag-pill.active {
  background-color: var(--accent-color);
  color: #ffffff;
  border-color: var(--accent-color);
}

/* Main Cards Grid */
.portal-main {
  flex: 1;
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.app-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  text-decoration: none;
  color: inherit;
}

.app-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-color);
  box-shadow: 0 10px 20px -5px var(--accent-glow);
  background-color: var(--bg-card-hover);
}

.app-card-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.app-icon {
  font-size: 2.2rem;
  line-height: 1;
  background-color: var(--bg-secondary);
  padding: 0.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  flex-shrink: 0;
}

.app-title-group {
  flex: 1;
}

.app-title {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
}

.app-version {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.app-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  flex: 1;
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.app-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.app-tags {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.app-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-secondary);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.launch-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--accent-color);
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}

.app-card:hover .launch-btn {
  color: var(--accent-hover);
  transform: translateX(4px);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 1rem;
}

.empty-state.hidden {
  display: none;
}

.empty-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
}

.empty-state h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.secondary-btn {
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.secondary-btn:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--accent-color);
}

/* Footer */
.portal-footer {
  margin-top: 3rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.portal-footer a {
  color: var(--accent-color);
  text-decoration: none;
}

.portal-footer a:hover {
  text-decoration: underline;
}