* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', Arial, sans-serif; }
body { background: #0d1b2a; color: #e0e6ed; min-height: 100vh; }

.center-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
}

.card {
  background: #1b2a3d; padding: 40px; border-radius: 12px; width: 100%;
  max-width: 360px; box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.card h1 { font-size: 1.4rem; margin-bottom: 20px; color: #7dd3fc; }

input {
  width: 100%; padding: 12px; margin-bottom: 14px; border-radius: 6px;
  border: 1px solid #334155; background: #0d1b2a; color: #e0e6ed; font-size: 0.95rem;
}

button {
  width: 100%; padding: 12px; border: none; border-radius: 6px;
  background: #7dd3fc; color: #0d1b2a; font-weight: 600; font-size: 0.95rem;
  cursor: pointer; transition: background 0.2s;
}
button:hover { background: #38bdf8; }

.error { color: #f87171; font-size: 0.85rem; margin-bottom: 10px; min-height: 1em; }

/* Dashboard */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 24px; background: #1b2a3d; border-bottom: 1px solid #334155;
}
.topbar h1 { font-size: 1.2rem; color: #7dd3fc; }
.topbar button { width: auto; padding: 8px 16px; background: transparent; border: 1px solid #7dd3fc; color: #7dd3fc; }
.topbar button:hover { background: #7dd3fc22; }

.dashboard { padding: 24px; max-width: 1000px; margin: 0 auto; }

.stat-row { display: flex; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.stat-box {
  background: #1b2a3d; border-radius: 10px; padding: 20px; flex: 1; min-width: 150px;
  text-align: center;
}
.stat-box .value { font-size: 2rem; font-weight: 700; color: #7dd3fc; }
.stat-box .label { font-size: 0.85rem; color: #94a3b8; margin-top: 4px; }

.chart-container {
  background: #1b2a3d; border-radius: 10px; padding: 20px; margin-bottom: 20px;
}
.chart-container h2 { font-size: 1rem; margin-bottom: 16px; color: #94a3b8; }

.status-dot {
  display: inline-block; width: 10px; height: 10px; border-radius: 50%;
  background: #4ade80; margin-right: 6px;
}
.status-dot.offline { background: #f87171; }

/* ---- Theme + new feature styles ---- */
.topbar-actions { display: flex; gap: 10px; align-items: center; }
.icon-btn { width: auto; padding: 8px 12px; background: transparent; border: 1px solid #334155; }
#exportBtn { width: auto; padding: 8px 16px; background: transparent; border: 1px solid #7dd3fc; color: #7dd3fc; }
#exportBtn:hover { background: #7dd3fc22; }

.risk-badge {
  display: inline-block; padding: 4px 14px; border-radius: 20px;
  border: 2px solid currentColor; font-weight: 700; font-size: 1rem;
}

.scale-ref { background: #1b2a3d; border-radius: 10px; padding: 20px; }
.scale-ref h2 { font-size: 1rem; margin-bottom: 14px; color: #94a3b8; }
.scale-row { display: flex; gap: 10px; flex-wrap: wrap; }
.scale-chip {
  padding: 6px 14px; border-radius: 6px; font-size: 0.8rem; font-weight: 600; color: #0d1b2a;
}

/* Light theme override */
body.theme-light { background: #f1f5f9; color: #1e293b; }
body.theme-light .topbar,
body.theme-light .card,
body.theme-light .stat-box,
body.theme-light .chart-container,
body.theme-light .scale-ref {
  background: #ffffff; border: 1px solid #e2e8f0;
}
body.theme-light .topbar h1,
body.theme-light .card h1 { color: #0369a1; }
body.theme-light input { background: #f8fafc; color: #1e293b; border: 1px solid #cbd5e1; }
body.theme-light .label,
body.theme-light .scale-ref h2 { color: #64748b; }