/**
 * @file base.css
 * @description 基础排版、重置、网格微光与全局元素样式
 */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-family: var(--gt-font-sans);
  font-size: 16px;
  line-height: 1.5;
  background-color: var(--gt-bg);
  color: var(--gt-text-primary);
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--gt-duration-normal) var(--gt-ease-standard),
              color var(--gt-duration-normal) var(--gt-ease-standard);
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  position: relative;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

/* 顶部与主体微妙环境辉光 (Aurora Radial Glow) */
.ambient-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1400px;
  height: 640px;
  background: radial-gradient(50% 50% at 50% 0%, rgba(10, 132, 255, 0.15) 0%, rgba(94, 92, 230, 0.08) 45%, rgba(0, 0, 0, 0) 100%);
  pointer-events: none;
  z-index: 0;
}

html[data-theme="light"] .ambient-glow {
  background: radial-gradient(50% 50% at 50% 0%, rgba(10, 132, 255, 0.12) 0%, rgba(94, 92, 230, 0.05) 50%, rgba(245, 245, 247, 0) 100%);
}

/* 布局容器 */
.container {
  width: 100%;
  max-width: var(--gt-container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gt-space-lg);
  padding-right: var(--gt-space-lg);
  position: relative;
  z-index: 1;
}

.container-narrow {
  max-width: var(--gt-container-narrow);
}

/* 排版类 */
h1, h2, h3, h4, h5, h6 {
  color: var(--gt-text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
}

h3 {
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
}

p {
  color: var(--gt-text-secondary);
  font-size: 1.05rem;
  line-height: 1.65;
}

a {
  color: var(--gt-blue);
  text-decoration: none;
  transition: opacity var(--gt-duration-fast) var(--gt-ease-standard);
}

a:hover {
  text-decoration: none;
  opacity: 0.85;
}

/* 等宽数字 */
.mono-num {
  font-family: var(--gt-font-mono);
  font-feature-settings: "tnum" on, "lnum" on;
}

/* 键盘焦点 */
:focus-visible {
  outline: 2px solid var(--gt-blue);
  outline-offset: 2px;
}

/* 按钮通用重置 */
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

/* 徽章 Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--gt-radius-pill);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-blue {
  background: var(--gt-blue-soft);
  color: var(--gt-blue);
  border: 1px solid rgba(10, 132, 255, 0.25);
}

.badge-green {
  background: var(--gt-green-soft);
  color: var(--gt-green);
  border: 1px solid rgba(48, 209, 88, 0.25);
}

.badge-orange {
  background: var(--gt-orange-soft);
  color: var(--gt-orange);
  border: 1px solid rgba(255, 159, 10, 0.25);
}

/* 动效辅助类 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}