*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #f5f5f5;
  --color-surface: #ffffff;
  --color-primary: #2d6a4f;
  --color-primary-light: #52b788;
  --color-text: #1a1a1a;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-danger: #dc2626;
  --radius: 8px;
  --nav-height: 60px;
}

html, body {
  height: 100%;
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 16px;
  background: var(--color-bg);
  color: var(--color-text);
}

#app {
  height: 100%;
  display: flex;
  flex-direction: column;
  max-width: 480px;
  margin: 0 auto;
  background: var(--color-bg);
}

.page {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  padding-bottom: calc(var(--nav-height) + 16px);
}

.page-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

button {
  font-size: 1rem;
  cursor: pointer;
  border: none;
  border-radius: var(--radius);
  min-height: 44px;
  padding: 0 16px;
}

input[type="text"],
input[type="number"] {
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 12px;
  min-height: 44px;
  width: 100%;
  background: var(--color-surface);
  color: var(--color-text);
}

input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}