/* ============================================
   月灵工坊 全局样式 (Global Styles)
   重置、基础样式、滚动条、通用类
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-dark);
  min-height: 100vh;
  overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

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

button {
  cursor: pointer;
  background: none;
  border: none;
}

/* 焦点可见性：仅键盘导航显示焦点环，鼠标点击不显示（WCAG 2.1 SC 2.4.7） */
:focus:not(:focus-visible) {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-gold-primary);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--color-link-hover);
}

ul,
ol {
  list-style: none;
}

/* ============ 滚动条样式 ============ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-deep);
}

::-webkit-scrollbar-thumb {
  background: var(--color-slate-300);
  border-radius: var(--radius-full);
  transition: background var(--duration-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gold-dark);
}

/* Firefox 滚动条 */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-slate-300) var(--color-bg-deep);
}

/* ============ 选中文本样式 ============ */
::selection {
  background: var(--color-gold-primary);
  color: var(--color-text-inverse);
}

/* ============ 全局背景 ============ */
body {
  background-image: 
    radial-gradient(ellipse at 20% 0%, rgba(212, 175, 55, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(212, 175, 55, 0.02) 0%, transparent 50%);
  background-attachment: fixed;
}

/* ============ 容器 ============ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container-narrow {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* ============ 通用工具类 ============ */

/* 文本对齐 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* 文字颜色 */
.text-gold { color: var(--color-gold-primary); }
.text-gold-light { color: var(--color-gold-light); }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }

/* 间距 */
.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

/* Flex 布局 */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

/* 网格 */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }

/* 显示/隐藏 */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }

/* 过渡动画 */
.transition {
  transition-property: all;
  transition-timing-function: var(--ease-out);
  transition-duration: var(--duration-normal);
}

.transition-fast {
  transition-property: all;
  transition-timing-function: var(--ease-out);
  transition-duration: var(--duration-fast);
}

/* 聚焦样式 */
.focus-ring:focus-visible {
  outline: 2px solid var(--color-gold-primary);
  outline-offset: 2px;
}

/* 无障碍：减少动画 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ 响应式容器 ============ */
@media (max-width: 1024px) {
  :root {
    --container-padding: var(--spacing-md);
  }
}

@media (max-width: 640px) {
  :root {
    --container-padding: var(--spacing-md);
    --header-height: 56px;
  }
}