/* =========================================================
   HoopTrain 全局设计令牌（Dark × Yellow）
   所有页面统一复用本文件，禁止在业务样式里硬编码色值。
   ========================================================= */

:root {
  color-scheme: dark;

  /* ---------- 背景 ---------- */
  --color-bg-top: #121217;
  --color-bg-bottom: #0a0a0d;

  /* ---------- 卡片 ---------- */
  --color-card: rgba(30, 30, 38, 0.9);
  --color-card-border: rgba(255, 255, 255, 0.08);
  --border-card: 0.5px;
  --radius-card: 20px;
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-card-hover: 0 14px 32px rgba(0, 0, 0, 0.55);

  /* ---------- 封面遮罩 ---------- */
  --overlay-card-bottom: rgba(10, 10, 13, 0.95);
  --overlay-card-middle: rgba(10, 10, 13, 0.55);

  /* ---------- 主色 ---------- */
  --color-accent: #ffd23f;
  --color-accent-soft: rgba(255, 210, 63, 0.15);
  --color-accent-border: rgba(255, 210, 63, 0.35);
  --color-accent-glow: rgba(255, 210, 63, 0.25);
  --color-on-accent: #000000;

  /* ---------- 文字层级 ---------- */
  --color-text-primary: #ffffff;
  --color-text-secondary: #e0e0e6;
  --color-text-muted: #909098;
  --font-weight-primary: 600;

  /* ---------- 警示 ---------- */
  --color-danger: #e5484d;

  /* ---------- 分割线 ---------- */
  --color-divider: rgba(255, 255, 255, 0.1);
  --color-track: rgba(255, 255, 255, 0.1);
  --color-star-off: rgba(255, 255, 255, 0.2);

  /* ---------- 圆角 ---------- */
  --radius-pill: 999px;

  /* ---------- 间距 ---------- */
  --space-card: 24px;
  --space-section: 60px;
  --space-page-x: 5%;
  --content-max-width: 1200px;
  --control-height: 44px;

  /* ---------- 吸顶导航 / 页脚 ---------- */
  --color-nav-bg: rgba(10, 10, 13, 0.85);
  --blur-nav: 12px;
  --nav-height: 68px;
  --nav-control-height: 36px;

  /* ---------- 过渡 ---------- */
  --transition-base: all 0.25s ease;
  --transition-slow: all 0.35s ease;

  /* ---------- 响应式断点（供 JS / 文档参考，媒体查询需写实际数值） ---------- */
  --breakpoint-md: 900px;
  --breakpoint-sm: 600px;

  /* ---------- 字体 ---------- */
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* =========================================================
   基础重置与页面背景
   ========================================================= */

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: var(--font-family);
  color: var(--color-text-secondary);
  background-color: var(--color-bg-bottom);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E"),
    linear-gradient(180deg, var(--color-bg-top) 0%, var(--color-bg-bottom) 100%);
  background-repeat: repeat, no-repeat;
  background-size: 160px 160px, cover;
  background-attachment: fixed, fixed;
}

body > main {
  flex: 1 0 auto;
  width: 100%;
}

.page {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--space-page-x);
}

/* 所有交互元素统一过渡 */
a,
button,
input,
select,
textarea,
.card,
.chip {
  transition: var(--transition-base);
}

/* =========================================================
   通用组件
   ========================================================= */

/* 卡片 */
.card {
  background: var(--color-card);
  border: var(--border-card) solid var(--color-card-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: var(--space-card);
}

/* 主按钮：黄色实心 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--control-height);
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-family: inherit;
  font-size: 15px;
  font-weight: var(--font-weight-primary);
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-base);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--color-accent-glow);
}

/* 次按钮：描边 */
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--control-height);
  padding: 0 24px;
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: 15px;
  font-weight: var(--font-weight-primary);
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-base);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* 胶囊标签 */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: var(--border-card) solid var(--color-accent-border);
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.6;
  white-space: nowrap;
}

/* 星级评分行：标签 + 5 星（实心黄 / 空心浅灰） */
.star-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.star-row + .star-row {
  margin-top: 8px;
}

.star-row__label {
  flex: 0 0 auto;
  min-width: 64px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.star-rating {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 15px;
  line-height: 1;
}

.star {
  font-size: inherit;
  line-height: 1;
}

.star--on {
  color: var(--color-accent);
}

.star--off {
  color: var(--color-star-off);
}

.star-rating__empty {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* =========================================================
   全局工具类：loading / 空态占位
   ========================================================= */

/* 统一旋转加载指示器 */
.spinner {
  display: inline-block;
  width: 28px;
  height: 28px;
  border: 2px solid var(--color-track);
  border-top-color: var(--color-accent);
  border-radius: var(--radius-pill);
  animation: ht-spin 0.8s linear infinite;
  flex-shrink: 0;
}

@keyframes ht-spin {
  to {
    transform: rotate(360deg);
  }
}

/* 通用"加载中…"区块：居中，页面首次拉数据 / 异步刷新时使用 */
.loading-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 160px;
  padding: 40px 24px;
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: center;
}

/* =========================================================
   全站公共吸顶导航
   ========================================================= */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-nav-bg);
  backdrop-filter: blur(var(--blur-nav));
  -webkit-backdrop-filter: blur(var(--blur-nav));
  border-bottom: var(--border-card) solid var(--color-divider);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--nav-height);
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}

.site-nav__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--nav-control-height);
  height: var(--nav-control-height);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-nav__brand-text {
  display: flex;
  flex-direction: column;
}

.site-nav__name {
  color: var(--color-text-primary);
  font-size: 17px;
  font-weight: var(--font-weight-primary);
  line-height: 1.2;
}

.site-nav__tagline {
  color: var(--color-text-muted);
  font-size: 9px;
  letter-spacing: 0.16em;
  line-height: 1.4;
}

.site-nav__menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav__link {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav__link:hover {
  color: var(--color-accent);
}

.site-nav__link.is-active {
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: var(--font-weight-primary);
}

.site-nav__account {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-nav__user {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-secondary);
  font-size: 14px;
  text-decoration: none;
}

.site-nav__avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--nav-control-height);
  height: var(--nav-control-height);
  border: var(--border-card) solid var(--color-accent-border);
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 14px;
  font-weight: var(--font-weight-primary);
}

.site-nav__login.btn-outline {
  min-height: var(--nav-control-height);
  padding: 0 18px;
  font-size: 13px;
}

/* =========================================================
   全站公共页脚
   ========================================================= */

.site-footer {
  margin-top: var(--space-section);
  padding: 32px 0 40px;
  border-top: var(--border-card) solid var(--color-divider);
}

.site-footer__inner {
  text-align: center;
}

.site-footer__slogan {
  margin: 0 0 8px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.site-footer__copyright {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 12px;
}

/* =========================================================
   响应式断点
   ========================================================= */

@media (max-width: 900px) {
  .page {
    padding-left: 24px;
    padding-right: 24px;
  }

  /* 隐藏中间导航菜单，仅保留品牌与头像/登录 */
  .site-nav__menu {
    display: none;
  }
}

@media (max-width: 600px) {
  .page {
    padding-left: 20px;
    padding-right: 20px;
  }
}