/************************************
  LIGHT THEME BASE
*************************************/
:root {
  color-scheme: light;
  --bg: #f9fafb;
  --text: #111827;
  --muted: #6b7280;
  --accent: #4f46e5;
  --accent-soft: #c7d2fe;
  --card-bg: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  --radius: 12px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
}

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

/************************************
  HEADER
*************************************/
.site-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: #fff;
  box-shadow: var(--shadow);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
}

.site-header h1 {
  margin: 0;
  font-size: 1.4rem;
  color: var(--accent);
}

.subtitle {
  font-size: 0.85rem;
  color: var(--muted);
}

.last-updated {
  font-size: 0.8rem;
  color: var(--muted);
}

/************************************
  LAYOUT
*************************************/
.layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 24px 32px;
}

.layout-single {
  padding: 16px 24px 32px;
}

/************************************
  FILTERS
*************************************/
.filters {
  border-right: 1px solid var(--border);
  padding-right: 16px;
}

.filters-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.filter-group {
  margin-bottom: 16px;
}

.filter-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 6px;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.filter-chip {
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  padding: 6px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.filter-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.filter-chip.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

/************************************
  APP CARDS
*************************************/
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

.app-card {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: all 0.2s ease;
}

.app-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.15);
  transform: translateY(-2px);
}

.app-header {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.app-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

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

.app-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}

.app-description {
  font-size: 0.9rem;
  color: #374151;
  max-height: 4.5em;
  overflow: hidden;
}

.app-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 8px;
  margin-top: 4px;
}

.app-timing {
  font-size: 0.85rem;
  color: var(--muted);
}

.app-actions {
  display: flex;
  gap: 6px;
}

/************************************
  BUTTONS
*************************************/
.btn {
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 6px 14px;
  font-size: 0.85rem;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  transition: all 0.15s ease;
}

.btn:hover {
  background: #4338ca;
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/************************************
  BADGES
*************************************/
.badge {
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  color: var(--muted);
  background: #f3f4f6;
}

.badge-status-active {
  border-color: #10b981;
  color: #065f46;
  background: #d1fae5;
}

.badge-status-completed {
  border-color: #6366f1;
  color: #312e81;
  background: #e0e7ff;
}

.badge-status-expired {
  border-color: #ef4444;
  color: #7f1d1d;
  background: #fee2e2;
}

.badge-status-not-started {
  border-color: #9ca3af;
  color: #374151;
  background: #f3f4f6;
}

.badge-status-closed {
  border-color: #6b7280;
  color: #374151;
  background: #e5e7eb;
}

.badge-status-joined {
  border-color: #0ea5e9;
  color: #075985;
  background: #e0f2fe;
}

.badge-android {
  border-color: #10b981;
  color: #065f46;
  background: #d1fae5;
}

/************************************
  PROGRESS BAR
*************************************/
.progress {
  margin-top: 6px;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: #e5e7eb;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(to right, #4f46e5, #22c55e);
  transition: width 0.3s ease-out;
}

/************************************
  MODAL
*************************************/
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 40;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
}

.modal-content {
  position: relative;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 16px 18px;
  max-width: 480px;
  width: 92%;
  max-height: 80vh;
  overflow-y: auto;
  z-index: 41;
  box-shadow: var(--shadow);
}

.modal-close {
  position: absolute;
  top: 8px;
  right: 8px;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0;
}

/************************************
  EMPTY + LOADING
*************************************/
.loading,
.empty {
  font-size: 0.9rem;
  color: var(--muted);
}

.hidden {
  display: none;
}

/************************************
  APP PAGE CONTAINER
*************************************/
.app-page-container {
  max-width: 640px;
  margin: 0 auto;
}

/************************************
  MOBILE BREAKPOINTS
*************************************/
@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr;
    padding: 12px 16px 24px;
  }

  .filters {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
    margin-bottom: 16px;
  }

  .app-card {
    padding: 16px;
  }

  .app-title {
    font-size: 1.1rem;
  }

  .app-description {
    max-height: none;
  }

  .app-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .app-actions {
    width: 100%;
    flex-wrap: wrap;
    gap: 8px;
  }

  .app-actions .btn,
  .app-actions .btn-ghost {
    width: 100%;
  }

  .modal-content {
    width: 94%;
    max-height: 85vh;
  }
}

/************************************
  SMALL PHONES
*************************************/
@media (max-width: 480px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .apps-grid {
    grid-template-columns: 1fr;
  }

  .filter-chip {
    padding: 8px 14px;
    font-size: 0.85rem;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .app-card {
    padding: 18px;
    font-size: 0.95rem;
  }

  .modal-content {
    width: 96%;
    padding: 20px;
  }
}

/************************************
  ULTRA-SMALL DEVICES
*************************************/
@media (max-width: 360px) {
  .app-title {
    font-size: 1rem;
  }

  .filter-chip {
    padding: 6px 10px;
    font-size: 0.75rem;
  }

  .btn {
    padding: 8px 12px;
    font-size: 0.85rem;
  }

  .app-card {
    padding: 14px;
  }
}

.site-footer {
  margin-top: 40px;
  padding: 20px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: #fff;
}

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

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