/* ===== CloudGuard CSS Reset ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--theme-text);
  background-color: var(--theme-bg);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

article, aside, details, figcaption, figure,
footer, header, hgroup, main, nav, section {
  display: block;
}

ol, ul {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--theme-brand);
}

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

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

input::placeholder,
textarea::placeholder {
  color: var(--theme-text-soft);
  opacity: 0.6;
}

textarea {
  resize: vertical;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--theme-text);
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
  margin-bottom: 0.5rem;
}

strong, b {
  font-weight: 600;
}

code, pre {
  font-family: "JetBrains Mono", "Fira Code", "Consolas", monospace;
}

pre {
  overflow-x: auto;
  padding: 1rem;
  border-radius: var(--theme-radius-sm);
  background: var(--theme-surface);
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.15);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.25);
}

::selection {
  background: var(--theme-brand);
  color: #fff;
}

hr {
  border: none;
  border-top: 1px solid var(--theme-border);
  margin: 1rem 0;
}