:root {
  --bg: #eef3f7;
  --surface: #ffffff;
  --surface-strong: #eef8f6;
  --text: #101828;
  --muted: #64748b;
  --line: #d8e3ea;
  --primary: #0f8b7e;
  --primary-strong: #0f766e;
  --accent: #ff7a1a;
  --accent-soft: #fff3e8;
  --indigo: #5457ff;
  --green: #1aa36f;
  --danger: #dc2626;
  --ink: #0b1220;
  --shadow: 0 18px 42px rgba(15, 23, 42, 0.1);
  --radius: 8px;
  --topbar-height: 72px;
  --bottom-nav-height: 64px;
  --font-scale: 1.08;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-size: calc(16px * var(--font-scale));
}

body {
  min-height: 100%;
  margin: 0;
  background: var(--bg);
}

body[data-font-size="small"] {
  --font-scale: 1;
}

body[data-font-size="large"] {
  --font-scale: 1.16;
}

body[data-font-size="xlarge"] {
  --font-scale: 1.26;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}