/* ======================================================================
 * VPN-Panel Element Plus 风格主题（基于 Bootstrap 5.3 CSS 变量覆盖）
 * - 主色 #409eff，中性灰 #f5f7fa
 * - 左侧 220px 固定侧栏 + 顶部 56px 状态栏
 * - 兼容 [data-bs-theme="dark"]
 * ====================================================================== */

:root,
[data-bs-theme="light"] {
  /* ---------- Element Plus 调色 ---------- */
  --ep-primary:        #409eff;
  --ep-primary-light:  #79bbff;
  --ep-primary-lighter:#a0cfff;
  --ep-primary-bg:     #ecf5ff;
  --ep-primary-active: #337ecc;

  --ep-success:        #67c23a;
  --ep-success-bg:     #f0f9eb;
  --ep-warning:        #e6a23c;
  --ep-warning-bg:     #fdf6ec;
  --ep-danger:         #f56c6c;
  --ep-danger-bg:      #fef0f0;
  --ep-info:           #909399;
  --ep-info-bg:        #f4f4f5;

  --ep-text-primary:   #303133;
  --ep-text-regular:   #606266;
  --ep-text-secondary: #909399;
  --ep-text-placeholder: #c0c4cc;

  --ep-border:         #dcdfe6;
  --ep-border-light:   #e4e7ed;
  --ep-border-lighter: #ebeef5;
  --ep-fill:           #f0f2f5;
  --ep-fill-light:     #f5f7fa;

  --ep-bg-page:        #f5f7fa;
  --ep-bg-card:        #ffffff;
  --ep-bg-sidebar:     #ffffff;
  --ep-bg-topbar:      #ffffff;

  --ep-shadow-sm:      0 1px 2px rgba(0,0,0,.04), 0 1px 3px rgba(0,0,0,.06);
  --ep-shadow:         0 1px 4px rgba(0,21,41,.08);
  --ep-shadow-lg:      0 4px 24px rgba(0,21,41,.10);

  --ep-sidebar-width:  220px;
  --ep-topbar-height:  56px;

  /* ---------- 把 EP 颜色覆盖到 Bootstrap 变量 ---------- */
  --bs-primary:        var(--ep-primary);
  --bs-primary-rgb:    64, 158, 255;
  --bs-success:        var(--ep-success);
  --bs-success-rgb:    103, 194, 58;
  --bs-warning:        var(--ep-warning);
  --bs-warning-rgb:    230, 162, 60;
  --bs-danger:         var(--ep-danger);
  --bs-danger-rgb:     245, 108, 108;
  --bs-info:           var(--ep-info);
  --bs-info-rgb:       144, 147, 153;

  --bs-body-bg:        var(--ep-bg-page);
  --bs-body-color:     var(--ep-text-regular);
  --bs-secondary-color:var(--ep-text-secondary);
  --bs-tertiary-color: var(--ep-text-placeholder);

  --bs-border-color:   var(--ep-border-light);
  --bs-border-color-translucent: rgba(0,0,0,.06);
  --bs-border-radius:  4px;
  --bs-border-radius-sm: 3px;
  --bs-border-radius-lg: 6px;

  --bs-link-color:     var(--ep-primary);
  --bs-link-color-rgb: 64, 158, 255;
  --bs-link-hover-color: var(--ep-primary-active);
  --bs-link-hover-color-rgb: 51, 126, 204;

  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Microsoft Sans Serif",
    "WenQuanYi Micro Hei", sans-serif;
}

[data-bs-theme="dark"] {
  --ep-bg-page:        #0e1116;
  --ep-bg-card:        #1b1e25;
  --ep-bg-sidebar:     #141821;
  --ep-bg-topbar:      #1b1e25;
  --ep-border:         #2c313a;
  --ep-border-light:   #2c313a;
  --ep-border-lighter: #2c313a;
  --ep-text-primary:   #e5eaf3;
  --ep-text-regular:   #cfd3dc;
  --ep-text-secondary: #a3a6ad;
  --ep-text-placeholder: #6c6e72;
  --ep-fill:           #1d2128;
  --ep-fill-light:     #1d2128;

  --bs-body-bg:        var(--ep-bg-page);
  --bs-body-color:     var(--ep-text-regular);
}

/* ====================================================================
 *   App shell：sidebar + topbar + content
 * ==================================================================== */

body {
  min-height: 100vh;
  background: var(--ep-bg-page);
  color: var(--ep-text-regular);
  font-size: 14px;
}

body.no-sidebar {
  background: var(--ep-bg-page);
}

/* ---- sidebar ---- */

.app-sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--ep-sidebar-width);
  height: 100vh;
  background: var(--ep-bg-sidebar);
  border-right: 1px solid var(--ep-border-light);
  display: flex;
  flex-direction: column;
  z-index: 1030;
  transition: transform 200ms ease;
}

.app-sidebar-brand {
  height: var(--ep-topbar-height);
  border-bottom: 1px solid var(--ep-border-light);
  display: flex; align-items: center;
  padding: 0 18px;
}
.app-sidebar-brand a {
  color: var(--ep-text-primary);
  font-weight: 600;
  font-size: 16px;
}
.app-sidebar-brand .brand-logo {
  display: inline-flex;
  width: 28px; height: 28px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--ep-primary) 0%, #5b8def 100%);
  color: #fff;
  align-items: center; justify-content: center;
  margin-right: 10px;
  font-size: 16px;
}

.app-sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  overflow-y: auto;
}

.app-sidebar-nav .nav-section-title {
  font-size: 12px;
  color: var(--ep-text-placeholder);
  padding: 6px 12px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.app-sidebar-nav .nav-link {
  display: flex; align-items: center;
  gap: 10px;
  padding: 9px 12px;
  margin: 2px 0;
  border-radius: 6px;
  color: var(--ep-text-regular);
  font-weight: 500;
  text-decoration: none;
  transition: background 120ms ease, color 120ms ease;
}
.app-sidebar-nav .nav-link i {
  font-size: 16px;
  width: 20px;
  text-align: center;
  color: var(--ep-text-secondary);
}
.app-sidebar-nav .nav-link:hover {
  background: var(--ep-fill-light);
  color: var(--ep-text-primary);
}
.app-sidebar-nav .nav-link.active {
  background: var(--ep-primary-bg);
  color: var(--ep-primary);
}
.app-sidebar-nav .nav-link.active i {
  color: var(--ep-primary);
}
[data-bs-theme="dark"] .app-sidebar-nav .nav-link.active {
  background: rgba(64,158,255,.15);
}

.app-sidebar-footer {
  border-top: 1px solid var(--ep-border-light);
}

/* ---- main wrap & topbar ---- */

.app-main-wrap {
  margin-left: var(--ep-sidebar-width);
  min-height: 100vh;
  display: flex; flex-direction: column;
}

body.no-sidebar .app-main-wrap {
  margin-left: 0;
}

.app-topbar {
  height: var(--ep-topbar-height);
  position: sticky; top: 0;
  background: var(--ep-bg-topbar);
  border-bottom: 1px solid var(--ep-border-light);
  display: flex; align-items: center;
  padding: 0 20px;
  z-index: 1020;
}

.app-topbar .topbar-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ep-text-primary);
}

.user-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 4px 10px;
  background: var(--ep-fill-light);
  border-radius: 18px;
  font-size: 13px;
  color: var(--ep-text-regular);
}
.user-chip .user-email {
  max-width: 180px;
  overflow: hidden; text-overflow: ellipsis;
  white-space: nowrap;
}

.icon-btn {
  border: 1px solid var(--ep-border-light);
  background: var(--ep-bg-card);
  color: var(--ep-text-regular);
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0;
}
.icon-btn:hover {
  color: var(--ep-primary);
  border-color: var(--ep-primary-lighter);
}

/* ---- content ---- */

.app-content {
  flex: 1;
  padding: 20px;
}
@media (min-width: 1200px) {
  .app-content { padding: 24px 28px; }
}

/* ---- 移动端：sidebar 收起 ---- */

@media (max-width: 991.98px) {
  .app-sidebar { transform: translateX(-100%); box-shadow: var(--ep-shadow-lg); }
  body.sidebar-open .app-sidebar { transform: translateX(0); }
  .app-main-wrap { margin-left: 0; }
  .sidebar-backdrop {
    display: none;
    position: fixed; inset: 0; background: rgba(0,0,0,.4);
    z-index: 1029;
  }
  body.sidebar-open .sidebar-backdrop { display: block; }
}

/* ====================================================================
 *   组件级微调
 * ==================================================================== */

/* ---- card ---- */

.card {
  border: 1px solid var(--ep-border-lighter);
  background: var(--ep-bg-card);
  border-radius: 6px;
  box-shadow: var(--ep-shadow-sm);
}
.card-body { padding: 18px 20px; }
.card-title {
  color: var(--ep-text-primary);
  font-weight: 600;
  font-size: 15px;
}

/* ---- button ---- */

.btn {
  font-weight: 500;
  border-radius: 4px;
  transition: all 120ms ease;
}
.btn-primary {
  --bs-btn-bg: var(--ep-primary);
  --bs-btn-border-color: var(--ep-primary);
  --bs-btn-hover-bg: var(--ep-primary-light);
  --bs-btn-hover-border-color: var(--ep-primary-light);
  --bs-btn-active-bg: var(--ep-primary-active);
  --bs-btn-active-border-color: var(--ep-primary-active);
}
.btn-success { --bs-btn-bg: var(--ep-success); --bs-btn-border-color: var(--ep-success); }
.btn-warning { --bs-btn-bg: var(--ep-warning); --bs-btn-border-color: var(--ep-warning); --bs-btn-color:#fff; --bs-btn-hover-color:#fff; }
.btn-danger  { --bs-btn-bg: var(--ep-danger); --bs-btn-border-color: var(--ep-danger); }

.btn-light {
  --bs-btn-bg: var(--ep-bg-card);
  --bs-btn-border-color: var(--ep-border-light);
  --bs-btn-hover-bg: var(--ep-fill-light);
  --bs-btn-hover-border-color: var(--ep-border);
  --bs-btn-color: var(--ep-text-regular);
}

/* ---- form controls ---- */

.form-control,
.form-select {
  border: 1px solid var(--ep-border);
  background: var(--ep-bg-card);
  color: var(--ep-text-primary);
  border-radius: 4px;
  font-size: 14px;
}
.form-control:focus,
.form-select:focus {
  border-color: var(--ep-primary);
  box-shadow: 0 0 0 2px rgba(64,158,255,.18);
}
.form-label {
  font-size: 13px;
  color: var(--ep-text-regular);
  margin-bottom: 6px;
  font-weight: 500;
}
.form-text { color: var(--ep-text-placeholder); font-size: 12px; }

/* ---- table ---- */

.table {
  --bs-table-bg: transparent;
  font-size: 14px;
  color: var(--ep-text-regular);
  margin-bottom: 0;
}
.table thead th {
  background: var(--ep-fill-light);
  color: var(--ep-text-regular);
  font-weight: 600;
  font-size: 13px;
  border-bottom: 1px solid var(--ep-border-light) !important;
  padding: 10px 12px;
  white-space: nowrap;
}
.table tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--ep-border-lighter);
  vertical-align: middle;
}
.table tbody tr:hover {
  background: var(--ep-fill-light);
}
.table .actions {
  white-space: nowrap;
  text-align: right;
}
.table .actions .btn {
  margin-left: 4px;
}
[data-bs-theme="dark"] .table thead th { background: #232831; }
[data-bs-theme="dark"] .table tbody tr:hover { background: rgba(255,255,255,.03); }

/* ---- badge / tag ---- */

.badge {
  font-weight: 500;
  font-size: 12px;
  border-radius: 3px;
  padding: 2px 8px;
}
.tag-success { background: var(--ep-success-bg); color: var(--ep-success); border: 1px solid var(--ep-success); }
.tag-info    { background: var(--ep-info-bg);    color: var(--ep-info);    border: 1px solid var(--ep-info); }
.tag-warning { background: var(--ep-warning-bg); color: var(--ep-warning); border: 1px solid var(--ep-warning); }
.tag-danger  { background: var(--ep-danger-bg);  color: var(--ep-danger);  border: 1px solid var(--ep-danger); }

.badge.text-bg-info,
.badge.text-bg-primary,
.badge.text-bg-success,
.badge.text-bg-warning,
.badge.text-bg-secondary {
  border: none;
}

/* ---- alert ---- */

.alert {
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 14px;
  padding: 10px 14px;
}
.alert-success { background: var(--ep-success-bg); color: var(--ep-success); border-color: var(--ep-success-bg); }
.alert-warning { background: var(--ep-warning-bg); color: var(--ep-warning); border-color: var(--ep-warning-bg); }
.alert-danger  { background: var(--ep-danger-bg);  color: var(--ep-danger);  border-color: var(--ep-danger-bg); }
.alert-info    { background: var(--ep-info-bg);    color: var(--ep-info);    border-color: var(--ep-info-bg); }

/* ---- modal ---- */

.modal-content {
  border: 1px solid var(--ep-border-light);
  border-radius: 6px;
  box-shadow: var(--ep-shadow-lg);
}
.modal-header {
  border-bottom: 1px solid var(--ep-border-lighter);
  padding: 14px 20px;
}
.modal-title { font-weight: 600; color: var(--ep-text-primary); font-size: 15px; }
.modal-body  { padding: 18px 20px; }
.modal-footer {
  border-top: 1px solid var(--ep-border-lighter);
  padding: 12px 20px;
}

/* ---- nav-pills (订阅 tabs) ---- */

.nav-pills .nav-link {
  color: var(--ep-text-regular);
  background: transparent;
  border-radius: 4px;
  padding: 6px 14px;
  font-size: 13px;
  margin-right: 4px;
}
.nav-pills .nav-link.active {
  background: var(--ep-primary);
  color: #fff;
}
.nav-pills .nav-link:hover:not(.active) {
  background: var(--ep-fill-light);
  color: var(--ep-primary);
}

/* ---- code ---- */

code {
  background: var(--ep-fill-light);
  color: var(--ep-primary-active);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 12.5px;
}

/* ====================================================================
 *   订阅链接 / 二维码
 * ==================================================================== */

.sub-url-box textarea {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  resize: none;
  background: var(--ep-fill-light);
}

.qr-wrap {
  display: inline-block;
  padding: 10px;
  background: #fff;
  border-radius: 6px;
  border: 1px solid var(--ep-border-light);
}
.qr-wrap canvas {
  display: block;
  width: 180px !important;
  height: 180px !important;
}
.qr-caption {
  font-size: 12px;
  color: var(--ep-text-secondary);
  text-align: center;
  margin-top: 6px;
}

/* ====================================================================
 *   登录 / 注册卡片（无 sidebar 状态）
 * ==================================================================== */

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background:
    radial-gradient(circle at 20% 20%, rgba(64,158,255,.10), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(103,194,58,.06), transparent 50%),
    var(--ep-bg-page);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  border-radius: 8px;
  box-shadow: var(--ep-shadow-lg);
}

.auth-card .card-title {
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.02em;
}

/* ====================================================================
 *   协议字段动态显隐
 * ==================================================================== */

.proto-fields { display: none; }
.proto-fields.is-active { display: block; }

/* ====================================================================
 *   HTMX 状态
 * ==================================================================== */

.htmx-indicator {
  opacity: 0;
  transition: opacity 200ms ease-in;
}
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator { opacity: 1; }

@keyframes flash-row {
  from { background-color: rgba(64, 158, 255, 0.18); }
  to   { background-color: transparent; }
}
tr.flash-update {
  animation: flash-row 800ms ease-out;
}

/* ====================================================================
 *   节点勾选区（用户分组 / 个人额外勾选 复用）
 * ==================================================================== */

.node-picker {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 50vh;
  overflow-y: auto;
  padding: 4px;
}

.node-picker-group {
  border: 1px solid var(--ep-border-lighter);
  border-radius: 6px;
  background: var(--ep-fill-light);
}

.node-picker-group-head {
  padding: 8px 12px;
  border-bottom: 1px solid var(--ep-border-lighter);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.node-picker-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 6px;
  padding: 10px 12px;
}

.node-picker-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--ep-border-lighter);
  border-radius: 4px;
  background: var(--ep-bg-card);
  cursor: pointer;
  transition: border-color 120ms ease;
  min-width: 0;
}

.node-picker-item:hover {
  border-color: var(--ep-primary-light);
}

.node-picker-item input[type="checkbox"] {
  flex-shrink: 0;
}

.node-picker-item .np-name {
  font-weight: 600;
  color: var(--ep-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1 1 auto;
  min-width: 0;
}

.node-picker-item .np-meta {
  color: var(--ep-text-secondary);
  font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.node-picker-item.is-disabled-node {
  opacity: 0.6;
}

.node-picker-item.is-from-plan {
  background: var(--ep-primary-bg);
  border-color: var(--ep-primary-lighter);
}

.node-picker-item.is-from-plan input[type="checkbox"] {
  pointer-events: none;
}

.node-picker-item.is-from-plan .np-source {
  font-size: 11px;
  color: var(--ep-primary-active);
  background: rgba(64, 158, 255, 0.12);
  padding: 1px 6px;
  border-radius: 999px;
}

[data-bs-theme="dark"] .node-picker-group { background: rgba(255,255,255,0.03); }
[data-bs-theme="dark"] .node-picker-item { background: rgba(255,255,255,0.04); }

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1px solid var(--ep-border-lighter);
  border-radius: 999px;
  background: var(--ep-fill-light);
  margin: 0;
}
.tag-chip:has(input:checked) {
  background: var(--ep-primary-bg);
  border-color: var(--ep-primary-lighter);
  color: var(--ep-primary-active);
}
.tag-chip .form-check-input { margin-top: 0; }
[data-bs-theme="dark"] .tag-chip { background: rgba(255,255,255,0.04); }

/* ====================================================================
 *   小工具
 * ==================================================================== */

.text-mono {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}
.divider-y {
  border-left: 1px solid var(--ep-border-lighter);
  height: 16px; margin: 0 6px;
}