:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-2: #0b1220;
  --border: #1f2937;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #2563eb;
  --good: #22c55e;
  --bad: #f87171;
  --warn: #facc15;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app-shell {
  min-height: 100vh;
  padding: 24px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.topbar h1 {
  margin: 0 0 8px;
  font-size: 32px;
}

.subtitle, .section-subtitle {
  margin: 0;
  color: var(--muted);
}

.status-pill, .summary-chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--muted);
  white-space: nowrap;
}

.summary-chip strong {
  display: block;
  font-size: 24px;
  color: var(--text);
}

.main-nav {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.nav-item, .primary-button, .secondary-button {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
}

.nav-item.active, .primary-button {
  background: var(--accent);
  border-color: var(--accent);
}

.secondary-button:hover, .nav-item:hover, .primary-button:hover {
  opacity: 0.95;
}

.main-content {
  display: grid;
  gap: 20px;
}

.view { display: none; }
.view.active { display: block; }

.card, .inner-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}

.card h2, .inner-card h3 {
  margin-top: 0;
  margin-bottom: 16px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.small-gap { margin-bottom: 12px; }

.status-grid, .admin-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.status-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.status-label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}

.module-grid, .analytics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.module-card, .metric-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
}

.module-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.module-card p, .simple-list {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.metric-card {
  display: grid;
  place-items: center;
  min-height: 110px;
  color: var(--muted);
  font-weight: 700;
  font-size: 1.1rem;
}

.calendar-layout {
  display: grid;
  grid-template-columns: minmax(280px, 320px) 1fr;
  gap: 16px;
  align-items: start;
}

.event-form {
  display: grid;
  gap: 14px;
}

.event-form label {
  display: grid;
  gap: 8px;
}

.event-form input,
.event-form textarea,
.event-form select,
.toolbar input {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 12px;
}

.form-actions, .toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.feedback-box {
  border-radius: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  margin-bottom: 12px;
}

.feedback-box.neutral { color: var(--muted); }
.feedback-box.success { color: var(--good); border-color: rgba(34,197,94,0.4); }
.feedback-box.error { color: var(--bad); border-color: rgba(248,113,113,0.4); }

.events-list {
  display: grid;
  gap: 12px;
}

.event-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.event-item-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.event-item h4 {
  margin: 0 0 8px;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 10px;
}

.meta-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--muted);
}

.event-description {
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

.empty-state {
  text-align: center;
  padding: 28px 16px;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: 14px;
}

.status-ok { color: var(--good); }
.status-error { color: var(--bad); }

@media (max-width: 900px) {
  .calendar-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .topbar, .section-header, .event-item-head {
    flex-direction: column;
  }

  .status-pill {
    width: 100%;
  }
}