/* ===== 顶栏 + 用户菜单 + 登录弹窗（nav-user.css）=====
   变量字典已迁至 /shared/theme.css（含 --primary/--bg/--text/--card-bg/--border/--text-dim 及 --nv-*）。
   本文件须在 theme.css 之后加载。 */

.user-dropdown { position: relative; display: inline-flex; }

.user-trigger {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 18px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--nv-border);
  border-radius: 50px;
  color: var(--nv-text);
  font-size: 13px; font-weight: 600;
  cursor: pointer; user-select: none;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.user-trigger:hover { border-color: var(--nv-primary); }
.user-trigger .arrow {
  font-size: 10px; transition: transform 0.3s ease;
  display: inline-block;
}
.user-dropdown.open .user-trigger .arrow { transform: rotate(180deg); }

.dropdown-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 150px;
  background: var(--nv-card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--nv-border);
  border-radius: var(--nv-radius);
  padding: 6px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.2s ease 0.15s, transform 0.2s ease 0.15s;
  z-index: 200;
  box-shadow:
    0 0 40px rgba(0,242,255,0.15),
    0 0 100px rgba(112,0,255,0.08),
    0 20px 60px rgba(0,0,0,0.5);
}

.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -16px;
  left: 0;
  width: 100%;
  height: 16px;
}
.user-dropdown.open .dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  transition: opacity 0.15s ease 0s, transform 0.15s ease 0s;
}

.user-dropdown.no-dropdown.open .dropdown-menu {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
}

.dropdown-item {
  display: flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 13px; font-weight: 500;
  color: var(--nv-text); cursor: pointer;
  text-decoration: none;
  transition: background 0.15s;
}
.dropdown-item:hover { background: rgba(255,255,255,0.06); }
.dropdown-item .icon {
  width: 36px;
  flex-shrink: 0;
  font-size: 14px;
  text-align: center;
}
.dropdown-item .dd-text {
  flex: 1;
  white-space: nowrap;
}

.dropdown-user {
  padding: 8px 14px 4px;
  font-size: 12px; color: var(--nv-text-dim);
}
.dropdown-user strong { color: var(--nv-text); font-size: 13px; }

.dropdown-divider {
  height: 1px; background: rgba(255,255,255,0.06);
  margin: 4px 8px;
}

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: center; justify-content: center;
  overflow-y: auto; padding: 20px 0;
  animation: fadeIn 0.25s ease;
}
.modal-overlay.show { display: flex; }
.modal-overlay .modal-box {
  background: var(--nv-card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--nv-border);
  border-radius: 20px;
  padding: 36px 32px;
  box-sizing: border-box;
  width: 400px; max-width: 90vw;
  max-height: 85vh; overflow-y: auto;
  position: relative;
  animation: scaleIn 0.3s ease;
  box-shadow:
    0 0 40px rgba(0,242,255,0.15),
    0 0 100px rgba(112,0,255,0.08),
    0 15px 60px rgba(0,0,0,0.5);
}
.modal-box .form-wrap {
  overflow-y: visible;
}
.modal-box .close-btn {
  position: absolute; top: 14px; right: 18px;
  background: none; border: none;
  color: var(--nv-text-dim); font-size: 22px;
  cursor: pointer; transition: color 0.2s; line-height: 1;
}
.modal-box .close-btn:hover { color: var(--nv-primary); }

.modal-box .tabs {
  display: flex; gap: 4px;
  margin-bottom: 24px;
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  padding: 4px;
}
.modal-box .tabs .tab {
  flex: 1; text-align: center;
  padding: 10px 0; border-radius: 10px;
  font-size: 14px; font-weight: 600;
  color: var(--nv-text-dim); cursor: pointer;
  transition: all 0.25s;
}
.modal-box .tabs .tab.active {
  background: linear-gradient(135deg, var(--nv-primary), var(--nv-secondary));
  color: #fff;
  box-shadow: 0 0 20px rgba(0,242,255,0.2);
}

.modal-box .form { display: none; }
.modal-box .form.show { display: block; }
.modal-box .form-group {
  margin-bottom: 16px;
}
.modal-box .form-group label {
  display: block; font-size: 12px; color: var(--nv-text-dim);
  margin-bottom: 6px; font-weight: 500;
}
.modal-box .form-group input {
  width: 100%; padding: 12px 16px;
  box-sizing: border-box;
  background: var(--nv-input-bg);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  color: var(--nv-text); font-size: 14px;
  transition: border-color 0.2s;
  outline: none;
}
.modal-box .form-group input:focus {
  border-color: var(--nv-primary);
  box-shadow: 0 0 15px rgba(0,242,255,0.08);
}
.modal-box .form-group input:-webkit-autofill,
.modal-box .form-group input:-webkit-autofill:hover,
.modal-box .form-group input:-webkit-autofill:focus {
  -webkit-box-shadow: 0 0 0 30px var(--nv-card-bg) inset !important;
  -webkit-text-fill-color: var(--nv-text) !important;
  caret-color: var(--nv-text);
  transition: background-color 5000s ease-in-out 0s;
}
.modal-box .form-group input::placeholder {
  color: rgba(255,255,255,0.2);
}

.modal-box .submit-btn {
  width: 100%; padding: 13px;
  box-sizing: border-box;
  font-size: 15px; font-weight: 700;
  border: none; border-radius: 12px;
  cursor: pointer; margin-top: 6px;
  background: linear-gradient(135deg, var(--nv-primary), var(--nv-secondary));
  color: #fff;
  box-shadow: 0 0 25px rgba(0,242,255,0.2);
  transition: all 0.3s;
}
.modal-box .submit-btn:hover {
  transform: scale(1.02);
  box-shadow: 0 0 40px rgba(0,242,255,0.35);
}

.modal-box .msg {
  text-align: center; font-size: 13px;
  margin-top: 12px; padding: 8px;
  border-radius: 8px; display: none;
}
.modal-box .msg.error { display: block; background: rgba(231,76,60,0.15); color: var(--nv-danger); }
.modal-box .msg.success { display: block; background: rgba(46,204,113,0.15); color: var(--nv-success); }

.forgot-link {
  font-size: 12px; color: var(--nv-text-dim);
  cursor: pointer; transition: color 0.2s;
}
.forgot-link:hover { color: var(--nv-primary); }

.forgot-back {
  font-size: 12px; color: var(--nv-primary);
  cursor: pointer; transition: color 0.2s;
}
.forgot-back:hover { color: var(--nv-accent); }

.intercept-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 999;
  display: none;
  align-items: center; justify-content: center;
}
.intercept-overlay.show { display: flex; }
.intercept-box {
  background: var(--nv-card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  padding: 40px 36px;
  box-sizing: border-box;
  width: 380px; max-width: 90vw;
  text-align: center;
  animation: scaleIn 0.3s ease;
  position: relative;
}
.intercept-box .icon { font-size: 56px; margin-bottom: 16px; }
.intercept-box .close-btn {
  position: absolute; top: 14px; right: 18px;
  background: none; border: none;
  color: var(--nv-text-dim); font-size: 22px;
  cursor: pointer; transition: color 0.2s; line-height: 1;
  z-index: 1;
}
.intercept-box .close-btn:hover { color: var(--nv-primary); }
.intercept-box h3 { font-size: 18px; margin-bottom: 8px; color: var(--nv-text); }
.intercept-box p { font-size: 13px; color: var(--nv-text-dim); margin-bottom: 24px; }
.intercept-box .btn-group { display: flex; gap: 12px; justify-content: center; }

.btn-primary {
  padding: 8px 22px; border-radius: 50px;
  font-size: 13px; font-weight: 600;
  border: none; cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none; display: inline-flex; align-items: center; gap: 6px;
  background: linear-gradient(135deg, var(--nv-primary), var(--nv-secondary));
  color: #fff;
  box-shadow: 0 0 20px rgba(0,242,255,0.3);
}
.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 0 35px rgba(0,242,255,0.5);
}

.btn-ghost {
  padding: 8px 22px; border-radius: 50px;
  font-size: 13px; font-weight: 600;
  border: none; cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none; display: inline-flex; align-items: center; gap: 6px;
  background: transparent; color: var(--nv-text-dim);
  border: 1px solid rgba(255,255,255,0.15);
}
.btn-ghost:hover { border-color: var(--nv-primary); color: var(--nv-primary); }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }

.pwd-wrapper { position: relative; display: flex; align-items: center; }
.pwd-wrapper input { flex: 1; padding-right: 40px !important; }

.pwd-wrapper input[type="password"]::-webkit-credentials-auto-fill-button,
.pwd-wrapper input[type="password"]::-webkit-password-toggle-button {
  display: none !important;
}
.pwd-wrapper input[type="password"]::-ms-reveal {
  display: none;
}

.pwd-toggle {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; padding: 4px;
  color: var(--nv-text-dim); line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: color 0.2s; user-select: none; z-index: 2;
}
.pwd-toggle:hover { color: var(--nv-primary); }
.pwd-toggle svg { display: block; }

.app-topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 32px;
  height: 52px;
  box-sizing: border-box;
  background: var(--nv-topbar-bg, rgba(5,5,5,0.15));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--nv-topbar-border, var(--nv-border));
  box-shadow: 0 1px 25px rgba(0,0,0,0.08);
  gap: 12px;
}

.app-topbar-left {
  display: flex; align-items: center; gap: 10px;
  flex-wrap: nowrap;
  min-width: 0;
}

.app-topbar-right {
  display: flex; align-items: center; gap: 8px;
  margin-left: auto;
}

.app-topbar .logo {
  font-size: 20px; font-weight: 800;
  letter-spacing: 2px;
  display: flex; align-items: center; gap: 6px;
  white-space: nowrap;
}
.app-topbar .logo .logo-text {
  background: linear-gradient(90deg, var(--nv-primary), var(--nv-secondary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.app-topbar .nav-home {
  font-size: 18px; text-decoration: none;
  color: var(--nv-primary);
}
.app-topbar .nav-home:hover { opacity: 0.8; }

.app-topbar .sep {
  color: rgba(255,255,255,0.2);
  margin: 0 2px;
}

.app-topbar a {
  color: var(--nv-text);
  text-decoration: none;
  font-size: 16px;
  padding: 10px;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}
.app-topbar a:hover {
  background: rgba(255,255,255,0.08);
  color: #fff;
}
.app-topbar .active,
.app-topbar a.active {
  background: rgba(0,212,255,0.15);
  color: var(--nv-primary);
}

.app-topbar .nav-chapters {
  display: flex; gap: 2px;
  flex-wrap: wrap;
}
.app-topbar .nav-chapters a {
  font-size: 12px; padding: 3px 7px;
}
/* 章节胶囊（as-badge）：红色渐变胶囊按钮样式 */
.app-topbar .nav-chapters a.as-badge {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: #fff !important;
  font-weight: 700;
  font-size: 10px;
  line-height: 1;
  padding: 3px 12px !important;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.15);
  display: inline-block;
  vertical-align: middle;
}
.app-topbar .nav-chapters a.as-badge:hover { opacity: 0.88; }
/* 纯文本导航标签（curPage 标识）：当前页灰字，不可点 */
.app-topbar .nav-chapters .nav-label {
  font-size: 12px; padding: 3px 7px;
  color: var(--nv-text-dim, rgba(255,255,255,0.45));
  white-space: nowrap;
}
.app-topbar .nav-chapters .nav-label.active {
  opacity: 1;
}

.app-topbar .chapter-dropdown { display: none; position: relative; }
.app-topbar .chapter-dropdown-btn {
  display: flex; align-items: center; gap: 6px;
  background: var(--card-bg, rgba(255,255,255,0.06));
  border: 1px solid var(--border, rgba(0,242,255,0.15));
  border-radius: 50px; color: var(--text, #fff);
  font-size: 12px; font-weight: 600; padding: 5px 14px;
  cursor: pointer; white-space: nowrap; transition: border-color 0.25s;
}
.app-topbar .chapter-dropdown-btn:hover { border-color: var(--primary, #00f2ff); }
.app-topbar .chapter-dropdown-btn .arrow { font-size: 10px; transition: transform 0.3s; display: inline-block; }
.app-topbar .chapter-dropdown.open .chapter-dropdown-btn .arrow { transform: rotate(180deg); }
.app-topbar .chapter-dropdown-menu {
  display: none; position: absolute; top: calc(100% + 8px); left: 0;
  min-width: 160px; background: var(--card-bg, rgba(12,12,24,0.95));
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border, rgba(0,242,255,0.15));
  border-radius: 14px; padding: 8px; z-index: 200;
  box-shadow: 0 0 40px rgba(0,242,255,0.12), 0 20px 60px rgba(0,0,0,0.5);
}
.app-topbar .chapter-dropdown.open .chapter-dropdown-menu { display: block; }
.app-topbar .chapter-dropdown-menu a {
  display: block; padding: 10px 14px; text-decoration: none;
  border-radius: 10px; font-size: 13px; color: var(--text, #fff); transition: background 0.2s;
}
.app-topbar .chapter-dropdown-menu a:hover { background: rgba(0,242,255,0.08); }
.app-topbar .chapter-dropdown-menu a.active { background: rgba(0,242,255,0.12); color: #66ddff; font-weight: 600; }
.app-topbar .chapter-dropdown-menu .nav-label {
  display: block; padding: 7px 14px; font-size: 12px; color: var(--nv-text-dim, rgba(255,255,255,0.45));
}

[data-theme="dark"] .app-topbar .chapter-dropdown-menu {
  background: rgba(12,12,24,0.8);
}

.app-topbar .admin-badge {
  font-size: 10px; font-weight: 700;
  padding: 2px 10px; border-radius: 20px;
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: #fff; margin-left: 4px;
}

[data-theme="light"] .app-topbar {
  --nv-topbar-bg: rgba(255,255,255,0.92);
  --nv-topbar-border: #e8e4dc;
  --nv-text: #333333;
}
[data-theme="light"] .app-topbar .user-trigger {
  background: rgba(0,0,0,0.04);
  border-color: #ddd;
  color: #333;
}
[data-theme="light"] .app-topbar .user-trigger:hover {
  border-color: #4a6aff;
}
[data-theme="light"] .app-topbar .logo .logo-text {
  background: linear-gradient(90deg, #4a6aff, #7b2ff7);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
[data-theme="light"] .app-topbar a { color: #555; }
[data-theme="light"] .app-topbar a:hover { background: #f0f0f0; color: #222; }
[data-theme="light"] .app-topbar .active,
[data-theme="light"] .app-topbar a.active { background: rgba(74,106,255,0.08); color: #4a6aff; }
[data-theme="light"] .app-topbar .sep { color: rgba(0,0,0,0.12); }
[data-theme="light"] .app-topbar .nav-home { color: #4a6aff; }

[data-theme="light"] .app-topbar .dropdown-menu {
  background: #fff;
  border-color: #e0e0e0;
  box-shadow: 0 6px 24px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.06);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
[data-theme="light"] .app-topbar .dropdown-item {
  color: #333;
}
[data-theme="light"] .app-topbar .dropdown-item:hover {
  background: #f0f4ff;
}
[data-theme="light"] .app-topbar .dropdown-divider {
  background: #e8e8e8;
}

@media(max-width: 768px) {
  .app-topbar a {  font-size: 13px;  padding: 6px; }
  .app-topbar { padding: 6px 18px; height: 42px; }
  .app-topbar .logo { font-size: 16px; }
  .app-topbar .logo .logo-icon { font-size: 18px; }
  .app-topbar .nav-home { font-size: 16px; }
  .app-topbar .nav-chapters { display: none; }
  .app-topbar .chapter-dropdown { display: block; }
  .app-topbar-right { gap: 6px; }
  .user-trigger { padding: 3px 8px; }
  .user-trigger #triggerText { display: none; }
  .user-trigger .arrow { display: none; }
  .user-dropdown:not(.no-dropdown) .user-trigger .arrow {
    display: inline-block !important;
  }
}

@media(max-width: 480px) {
  .app-topbar { padding: 5px 14px; }
  .app-topbar .logo { font-size: 14px; }
  .app-topbar-right { gap: 4px; }
}