/**
 * Nexus 组件库 —— 全部自绘，禁用原生控件外观
 * 按钮 / 输入 / 开关 / 卡片 / 表格 / 徽章 / 提示框 / 分页 / 标签页 / 抽屉 / 搜索层 / toast
 */

/* ---------- 按钮 ---------- */
.nx-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 18px; border: 1px solid transparent; border-radius: var(--nx-radius-sm);
  font: inherit; font-weight: 500; font-size: 14px; line-height: 1.4;
  background: var(--nx-primary); color: #fff; cursor: pointer;
  transition: background .15s, box-shadow .15s, transform .05s;
  -webkit-appearance: none; appearance: none; user-select: none; text-decoration: none;
}
.nx-btn:hover { background: var(--nx-primary-hover); color: #fff; }
.nx-btn:active { transform: translateY(1px); }
.nx-btn:disabled { opacity: .55; cursor: not-allowed; }
.nx-btn--ghost {
  background: transparent; color: var(--nx-text);
  border-color: var(--nx-border);
}
.nx-btn--ghost:hover { background: var(--nx-primary-softer); color: var(--nx-primary); border-color: var(--nx-primary); }
.nx-btn--soft { background: var(--nx-primary-soft); color: var(--nx-primary); }
.nx-btn--soft:hover { background: var(--nx-primary); color: #fff; }
.nx-btn--danger { background: var(--nx-danger); }
.nx-btn--danger:hover { background: #dc2626; }
.nx-btn--sm { padding: 5px 12px; font-size: 13px; border-radius: 6px; }
.nx-btn--lg { padding: 12px 28px; font-size: 16px; }

/* ---------- 输入 ---------- */
.nx-input, .nx-select, .nx-textarea {
  width: 100%; padding: 9px 12px;
  border: 1px solid var(--nx-border); border-radius: var(--nx-radius-sm);
  background: var(--nx-card); color: var(--nx-text);
  font: inherit; font-size: 14px;
  -webkit-appearance: none; appearance: none;
  transition: border-color .15s, box-shadow .15s;
}
.nx-textarea { min-height: 110px; resize: vertical; }
.nx-input:focus, .nx-select:focus, .nx-textarea:focus {
  outline: none; border-color: var(--nx-primary);
  box-shadow: 0 0 0 3px var(--nx-primary-soft);
}
.nx-input::placeholder, .nx-textarea::placeholder { color: var(--nx-text-3); }
.nx-select {
  background-image: linear-gradient(45deg, transparent 50%, var(--nx-text-2) 50%),
                    linear-gradient(135deg, var(--nx-text-2) 50%, transparent 50%);
  background-position: calc(100% - 18px) 55%, calc(100% - 13px) 55%;
  background-size: 5px 5px;
  background-repeat: no-repeat; padding-right: 34px;
}
.nx-field { margin-bottom: 16px; }
.nx-label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 500; color: var(--nx-text-2); }
.nx-help { margin-top: 5px; font-size: 12px; color: var(--nx-text-3); }

/* ---------- 开关 ---------- */
.nx-switch { position: relative; display: inline-block; width: 40px; height: 22px; flex: none; }
.nx-switch input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.nx-switch .nx-switch__ui {
  position: absolute; inset: 0; border-radius: 11px;
  background: var(--nx-border); transition: background .2s;
}
.nx-switch .nx-switch__ui::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; box-shadow: var(--nx-shadow-sm);
  transition: transform .2s;
}
.nx-switch input:checked + .nx-switch__ui { background: var(--nx-primary); }
.nx-switch input:checked + .nx-switch__ui::after { transform: translateX(18px); }
.nx-switch input:focus-visible + .nx-switch__ui { outline: 2px solid var(--nx-primary); outline-offset: 2px; }

/* ---------- 复选/单选 ---------- */
.nx-check { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; }
.nx-check input {
  width: 17px; height: 17px; margin: 0; accent-color: var(--nx-primary); cursor: pointer;
}

/* ---------- 卡片 ---------- */
.nx-card {
  background: var(--nx-card); border: 1px solid var(--nx-border);
  border-radius: var(--nx-radius); box-shadow: var(--nx-shadow-sm);
  padding: 20px 22px;
}
.nx-card--hover { transition: transform .18s ease, box-shadow .18s ease; }
.nx-card--hover:hover { transform: translateY(-2px); box-shadow: var(--nx-shadow); }
.nx-card__title { margin: 0 0 12px; font-size: 17px; font-weight: 600; }

/* ---------- 表格 ---------- */
.nx-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.nx-table th, .nx-table td {
  padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--nx-border);
}
.nx-table th { font-weight: 600; color: var(--nx-text-2); font-size: 13px; background: var(--nx-muted); }
.nx-table tbody tr { transition: background .12s; }
.nx-table tbody tr:hover { background: var(--nx-primary-softer); }
.nx-table--wrap { overflow-x: auto; border: 1px solid var(--nx-border); border-radius: var(--nx-radius-sm); }

/* ---------- 徽章 ---------- */
.nx-badge {
  display: inline-flex; align-items: center; padding: 2px 9px;
  border-radius: 999px; font-size: 12px; font-weight: 500; line-height: 1.6;
  background: var(--nx-primary-soft); color: var(--nx-primary);
}
.nx-badge--gray  { background: var(--nx-muted); color: var(--nx-text-2); }
.nx-badge--warn  { background: rgba(245, 158, 11, .12); color: #b45309; }
.nx-badge--danger{ background: rgba(239, 68, 68, .1); color: var(--nx-danger); }

/* ---------- 提示框 ---------- */
.nx-alert {
  display: flex; gap: 10px; padding: 12px 16px; margin: 0 0 16px;
  border-radius: var(--nx-radius-sm); font-size: 14px;
  border: 1px solid transparent;
}
.nx-alert--info    { background: rgba(59,130,246,.08); color: #1d4ed8; border-color: rgba(59,130,246,.25); }
.nx-alert--success { background: var(--nx-primary-softer); color: var(--nx-primary-hover); border-color: rgba(16,185,129,.3); }
.nx-alert--warning { background: rgba(245,158,11,.1); color: #b45309; border-color: rgba(245,158,11,.3); }
.nx-alert--danger  { background: rgba(239,68,68,.08); color: var(--nx-danger); border-color: rgba(239,68,68,.3); }
[data-theme="dark"] .nx-alert--info    { color: #93c5fd; }
[data-theme="dark"] .nx-alert--success { color: #6ee7b7; }
[data-theme="dark"] .nx-alert--warning { color: #fcd34d; }

/* ---------- 分页 ---------- */
.nx-pager { display: flex; gap: 6px; justify-content: center; margin: 24px 0; }
.nx-pager a, .nx-pager span {
  min-width: 36px; height: 36px; padding: 0 10px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--nx-radius-sm); border: 1px solid var(--nx-border);
  font-size: 14px; color: var(--nx-text-2); background: var(--nx-card);
}
.nx-pager a:hover { border-color: var(--nx-primary); color: var(--nx-primary); }
.nx-pager .is-active { background: var(--nx-primary); border-color: var(--nx-primary); color: #fff; font-weight: 600; }
.nx-pager .is-disabled { opacity: .45; cursor: not-allowed; }

/* ---------- 标签页 ---------- */
.nx-tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--nx-border); margin-bottom: 18px; }
.nx-tabs a {
  padding: 9px 16px; margin-bottom: -2px; font-size: 14px; color: var(--nx-text-2);
  border-bottom: 2px solid transparent;
}
.nx-tabs a:hover { color: var(--nx-primary); }
.nx-tabs a.is-active { color: var(--nx-primary); border-bottom-color: var(--nx-primary); font-weight: 600; }

/* ---------- 顶栏（手机端顺序：[黑白][搜索][菜单] 居右） ---------- */
.nx-header {
  position: sticky; top: 0; z-index: 50; height: var(--nx-header-h);
  background: color-mix(in srgb, var(--nx-card) 88%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--nx-border);
}
.nx-header__inner {
  max-width: var(--nx-container); margin: 0 auto; height: 100%;
  display: flex; align-items: center; gap: 14px; padding: 0 18px;
}
.nx-logo { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 18px; color: var(--nx-text); }
.nx-logo i {
  width: 26px; height: 26px; border-radius: 7px; flex: none;
  background: linear-gradient(135deg, var(--nx-primary), #34d399);
}
.nx-nav { display: flex; gap: 4px; margin-left: 8px; }
.nx-nav a { padding: 7px 13px; border-radius: var(--nx-radius-sm); color: var(--nx-text-2); font-size: 14.5px; }
.nx-nav a:hover, .nx-nav a.is-active { color: var(--nx-primary); background: var(--nx-primary-softer); }
.nx-header__acts { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nx-icon-btn {
  width: 38px; height: 38px; border: 0; border-radius: var(--nx-radius-sm);
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--nx-text-2); cursor: pointer;
  -webkit-appearance: none; appearance: none; transition: background .15s, color .15s;
}
.nx-icon-btn:hover { background: var(--nx-primary-softer); color: var(--nx-primary); }
.nx-icon-btn svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.nx-burger { display: none; }

/* ---------- 抽屉 ---------- */
.nx-drawer {
  position: fixed; inset: 0; z-index: 90; visibility: hidden; pointer-events: none;
}
.nx-drawer__mask {
  position: absolute; inset: 0; background: rgba(15, 23, 18, .45);
  opacity: 0; transition: opacity .22s;
}
.nx-drawer__panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(320px, 84vw);
  background: var(--nx-card); box-shadow: var(--nx-shadow);
  transform: translateX(100%); transition: transform .24s ease;
  padding: 18px; overflow-y: auto;
}
.nx-drawer.is-open { visibility: visible; pointer-events: auto; }
.nx-drawer.is-open .nx-drawer__mask { opacity: 1; }
.nx-drawer.is-open .nx-drawer__panel { transform: translateX(0); }
.nx-drawer a { display: block; padding: 11px 12px; border-radius: var(--nx-radius-sm); color: var(--nx-text); font-size: 15px; }
.nx-drawer a:hover { background: var(--nx-primary-softer); color: var(--nx-primary); }

/* ---------- 搜索层 ---------- */
.nx-search-layer {
  position: fixed; inset: 0; z-index: 95; display: grid; place-items: start center;
  padding: 14vh 18px 0; background: rgba(15, 23, 18, .5);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  opacity: 0; visibility: hidden; transition: opacity .2s, visibility .2s;
}
.nx-search-layer.is-open { opacity: 1; visibility: visible; }
.nx-search-box {
  width: min(620px, 100%); background: var(--nx-card);
  border-radius: var(--nx-radius); box-shadow: var(--nx-shadow); padding: 14px;
  transform: translateY(-12px); transition: transform .2s;
}
.nx-search-layer.is-open .nx-search-box { transform: translateY(0); }
.nx-search-box .nx-input { font-size: 16px; padding: 12px 14px; }

/* ---------- Toast ---------- */
.nx-toasts { position: fixed; top: 16px; left: 50%; transform: translateX(-50%); z-index: 99; display: grid; gap: 8px; }
.nx-toast {
  padding: 10px 18px; border-radius: var(--nx-radius-sm);
  background: var(--nx-card); color: var(--nx-text);
  border: 1px solid var(--nx-border); box-shadow: var(--nx-shadow);
  font-size: 14px; animation: nx-toast-in .25s ease;
}
.nx-toast--success { border-left: 3px solid var(--nx-success); }
.nx-toast--danger  { border-left: 3px solid var(--nx-danger); }
@keyframes nx-toast-in { from { opacity: 0; transform: translateY(-8px); } }

/* ---------- 工具类 ---------- */
.nx-container { max-width: var(--nx-container); margin: 0 auto; padding: 0 18px; }
.nx-grid { display: grid; gap: 16px; }
.nx-grid--2 { grid-template-columns: repeat(2, 1fr); }
.nx-grid--3 { grid-template-columns: repeat(3, 1fr); }
.nx-grid--4 { grid-template-columns: repeat(4, 1fr); }
.nx-muted { color: var(--nx-text-2); }
.nx-small { font-size: 13px; }
.nx-mt0 { margin-top: 0; } .nx-mb0 { margin-bottom: 0; }
.nx-flex { display: flex; align-items: center; gap: 10px; }
.nx-spacer { flex: 1; }
.nx-skeleton {
  background: linear-gradient(90deg, var(--nx-muted) 25%, var(--nx-border) 50%, var(--nx-muted) 75%);
  background-size: 200% 100%; animation: nx-skel 1.2s infinite; border-radius: var(--nx-radius-sm);
}
@keyframes nx-skel { from { background-position: 200% 0; } }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .nx-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .nx-grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .nx-nav { display: none; }
  .nx-burger { display: inline-flex; }
  .nx-grid--2, .nx-grid--3, .nx-grid--4 { grid-template-columns: 1fr; }
  .nx-header__inner { padding: 0 12px; gap: 8px; }
}