/* ===== App shell ===== */
body { padding-bottom: 60px; }

.navbar {
  background: var(--ink);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 500;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
  gap: 16px;
}
.nav-logo {
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo .dot-mark { color: var(--primary); }

.nav-tabs { display: flex; gap: 2px; height: 100%; overflow-x: auto; }
.tab-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  padding: 0 16px;
  height: 64px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s var(--ease), border-color 0.15s var(--ease);
  white-space: nowrap;
}
.tab-btn:hover { color: #fff; }
.tab-btn.active { color: #fff; border-bottom-color: var(--primary); }
.tab-btn:disabled { color: #475569; cursor: not-allowed; }

.container { max-width: 1200px; margin: 0 auto; padding: 32px 24px; }

.page-view { display: none; }
.page-view.active { display: block; animation: fadeIn 0.3s var(--ease); }

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.header h1 { font-size: 21px; letter-spacing: -0.02em; }
.header p { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-small { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

@media (max-width: 900px) {
  .grid, .grid-3 { grid-template-columns: 1fr; }
  .nav-container { height: auto; padding: 10px 0; flex-direction: column; align-items: flex-start; }
  .nav-tabs { width: 100%; }
}

/* ===== Onboarding overlay ===== */
#onboarding-screen {
  position: fixed;
  inset: 0;
  background: var(--ink);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
#onboarding-screen.hidden { display: none; }