/* ==========================================================================
   ApiHub 设计系统 - 中性灰阶 + 翡翠绿点缀
   ========================================================================== */

:root {
  /* 强调色 - 翡翠绿 */
  --brand: #10b981;
  --brand-dark: #059669;
  --brand-light: #34d399;
  --brand-soft: rgba(16, 185, 129, 0.12);

  /* 中性色 */
  --ink: #0a0a0a;
  --gray-900: #171717;
  --gray-800: #262626;
  --gray-700: #404040;
  --gray-600: #525252;
  --gray-500: #737373;
  --gray-400: #a3a3a3;
  --gray-300: #d4d4d4;
  --gray-200: #e5e5e5;
  --gray-100: #f5f5f5;
  --gray-50: #fafafa;
  --white: #ffffff;

  /* 语义色 */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #0ea5e9;

  /* 排版 */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  /* 圆角 */
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.12);

  --container: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--gray-800);
  background: var(--gray-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 排版辅助 ---------- */
.text-muted { color: var(--gray-500); }
.text-brand { color: var(--brand); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mono { font-family: var(--font-mono); }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }

h1, h2, h3, h4 { color: var(--gray-900); font-weight: 700; line-height: 1.25; }

/* ---------- 通用工具 ---------- */
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.w-full { width: 100%; }
.hidden { display: none; }

/* ==========================================================================
   顶部导航
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--gray-200);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 19px;
  color: var(--gray-900);
}
.brand .logo {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
}
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--gray-600);
  font-weight: 500;
  font-size: 15px;
  transition: all 0.15s;
}
.nav-links a:hover { color: var(--gray-900); background: var(--gray-100); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--gray-700); }

/* ==========================================================================
   按钮
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}
.btn-primary:hover { background: var(--brand-dark); box-shadow: 0 6px 16px rgba(16, 185, 129, 0.35); }
.btn-outline {
  background: transparent;
  border-color: var(--gray-300);
  color: var(--gray-800);
}
.btn-outline:hover { border-color: var(--gray-400); background: var(--gray-50); }
.btn-ghost { background: transparent; color: var(--gray-700); }
.btn-ghost:hover { background: var(--gray-100); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ==========================================================================
   卡片
   ========================================================================== */
.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.card-body { padding: 24px; }
.card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-header h3 { font-size: 17px; }

/* ==========================================================================
   表单
   ========================================================================== */
.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 7px;
}
.form-label .req { color: var(--danger); }
.form-control {
  width: 100%;
  padding: 11px 14px;
  font-family: inherit;
  font-size: 15px;
  color: var(--gray-900);
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}
.form-control:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-soft);
}
.form-control::placeholder { color: var(--gray-400); }
textarea.form-control { resize: vertical; min-height: 90px; font-family: var(--font-mono); font-size: 13px; }
select.form-control { cursor: pointer; }
.form-hint { font-size: 13px; color: var(--gray-500); margin-top: 6px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ==========================================================================
   徽章 / 标签
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
}
.badge-success { background: var(--brand-soft); color: var(--brand-dark); }
.badge-danger { background: rgba(239, 68, 68, 0.12); color: #dc2626; }
.badge-warning { background: rgba(245, 158, 11, 0.14); color: #d97706; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }
.badge-info { background: rgba(14, 165, 233, 0.12); color: #0284c7; }
.badge-dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--gray-100);
  color: var(--gray-600);
}

/* ==========================================================================
   表格
   ========================================================================== */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--gray-500);
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}
.table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
  vertical-align: middle;
}
.table tbody tr { transition: background 0.12s; }
.table tbody tr:hover { background: var(--gray-50); }
.table tbody tr:last-child td { border-bottom: none; }

/* ==========================================================================
   提示条 / Toast
   ========================================================================== */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 18px;
}
.alert-success { background: var(--brand-soft); color: var(--brand-dark); }
.alert-danger { background: rgba(239, 68, 68, 0.1); color: #b91c1c; }

.toast-wrap {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 260px;
  padding: 14px 18px;
  background: var(--gray-900);
  color: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  animation: toastIn 0.25s ease;
}
.toast.success { border-left: 3px solid var(--brand); }
.toast.error { border-left: 3px solid var(--danger); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ==========================================================================
   空状态
   ========================================================================== */
.empty {
  text-align: center;
  padding: 56px 24px;
  color: var(--gray-400);
}
.empty svg { margin: 0 auto 16px; opacity: 0.5; }
.empty p { font-size: 15px; }

/* ==========================================================================
   分页
   ========================================================================== */
.pagination {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: 24px;
}
.pagination a, .pagination span {
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-200);
  background: var(--white);
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-600);
}
.pagination a:hover { border-color: var(--brand); color: var(--brand); }
.pagination .active { background: var(--brand); border-color: var(--brand); color: #fff; }

/* ==========================================================================
   代码块
   ========================================================================== */
.code-block {
  position: relative;
  background: var(--gray-900);
  border-radius: var(--radius);
  overflow: hidden;
}
.code-block pre {
  padding: 18px 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: #e5e5e5;
}
.code-block .copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 5px 10px;
  font-size: 12px;
  color: var(--gray-300);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}
.code-block .copy-btn:hover { background: rgba(255, 255, 255, 0.16); color: #fff; }
.tok-key { color: #34d399; }
.tok-str { color: #fcd34d; }
.tok-num { color: #93c5fd; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 860px) {
  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    padding: 8px;
    display: none;
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; }
  .nav-toggle { display: block; }
  .form-row { grid-template-columns: 1fr; }
}