:root {
  --app-bg-1: #fff8ea;
  --app-bg-2: #f3f7ff;
  --app-card: rgba(255, 255, 255, 0.9);
  --app-border: rgba(148, 163, 184, 0.22);
  --app-shadow: 0 22px 60px rgba(15, 23, 42, 0.12);
}

html, body {
  min-height: 100%;
}

body {
  font-family: "Segoe UI", "Trebuchet MS", Arial, sans-serif;
}

.app-bg {
  background:
    radial-gradient(circle at top left, rgba(251, 191, 36, 0.18), transparent 26%),
    radial-gradient(circle at top right, rgba(96, 165, 250, 0.14), transparent 24%),
    linear-gradient(135deg, var(--app-bg-1), var(--app-bg-2));
}

.chart-shell {
  position: relative;
  min-height: 500px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 251, 240, 0.9), rgba(255, 255, 255, 0.96));
  border: 1px solid var(--app-border);
  box-shadow: var(--app-shadow);
  overflow: hidden;
}

.chart-shell-sm {
  min-height: 200px;
}

.chart-shell canvas {
  width: 100% !important;
  height: 100% !important;
}

.chart-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  text-align: center;
  z-index: 1;
}

.chart-shell canvas {
  position: relative;
  z-index: 2;
}

.soft-card {
  background: var(--app-card);
  border: 1px solid var(--app-border);
  box-shadow: var(--app-shadow);
  backdrop-filter: blur(12px);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.45);
  border-radius: 999px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.35);
}