/* 律时达 - 全局导航样式（现代SaaS风格） */

/* CSS变量 */
:root {
  --nav-height: 72px;
  --nav-bg: rgba(255, 255, 255, 0.85);
  --nav-border: rgba(0, 0, 0, 0.06);
  --nav-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --nav-primary: #1A1A2E;
  --nav-secondary: #FF6B35;
  --nav-text: #64748b;
  --nav-text-active: #1A1A2E;
  --nav-radius: 16px;
  --nav-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 导航容器 */
.app-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--nav-shadow);
  opacity: 0;
  transform: translateY(-10px);
  transition: var(--nav-transition);
}

.app-nav.loaded,
.app-nav.mini-mode {
  opacity: 1;
  transform: translateY(0);
}

.app-nav.mini-mode {
  display: none !important;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--nav-primary);
  font-weight: 700;
  font-size: 1.25rem;
  transition: var(--nav-transition);
}

.nav-logo:hover {
  opacity: 0.8;
}

.nav-logo-icon {
  font-size: 1.8rem;
}

.nav-logo-text {
  white-space: nowrap;
  letter-spacing: 1px;
}

/* 导航菜单 */
.nav-left {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--nav-radius);
  color: var(--nav-text);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--nav-transition);
  position: relative;
}

.nav-item:hover {
  color: var(--nav-text-active);
  background: rgba(0, 0, 0, 0.04);
}

.nav-item.active {
  color: var(--nav-secondary);
  background: rgba(255, 107, 53, 0.08);
}

.nav-item.active::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--nav-secondary);
  border-radius: 2px;
}

.nav-icon {
  font-size: 1.1rem;
}

.nav-label {
  white-space: nowrap;
}

/* 用户区域 */
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-user {
  position: relative;
  cursor: pointer;
}

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e8eaf6, #f5f5f5);
  border: 2px solid #e0e0e0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--nav-transition);
}

.user-avatar:hover {
  border-color: var(--nav-secondary);
  transform: scale(1.05);
}

.user-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 200px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--nav-transition);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.user-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-dropdown-header {
  padding: 16px 20px;
  background: linear-gradient(135deg, #f8f9fa, #f1f3f4);
}

.user-name {
  font-weight: 600;
  color: var(--nav-primary);
  font-size: 0.95rem;
}

.user-dropdown-divider {
  height: 1px;
  background: #eee;
}

.user-dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 20px;
  border: none;
  background: none;
  color: #666;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--nav-transition);
  text-align: left;
}

.user-dropdown-item:hover {
  background: #f8f9fa;
  color: #ef4444;
}

.dropdown-icon {
  font-size: 1.1rem;
}

/* 移动端汉堡按钮 */
.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  border: none;
  background: none;
  cursor: pointer;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
  transition: var(--nav-transition);
}

.nav-mobile-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
}

.nav-mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--nav-primary);
  border-radius: 2px;
  transition: var(--nav-transition);
}

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100vh;
  background: #fff;
  z-index: 1001;
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
  visibility: hidden;
  overflow-y: auto;
}

.mobile-menu.open {
  right: 0;
  visibility: visible;
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--nav-transition);
}

.mobile-menu-overlay.show {
  opacity: 1;
  visibility: visible;
}

body.menu-open {
  overflow: hidden;
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 24px;
  background: linear-gradient(135deg, #1A1A2E, #2D2D44);
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem;
}

.mobile-menu-header .nav-logo-icon {
  font-size: 1.5rem;
}

.mobile-nav-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

.mobile-nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-radius: 12px;
  color: #444;
  font-weight: 500;
  text-decoration: none;
  transition: var(--nav-transition);
  margin-bottom: 4px;
}

.mobile-nav-item:hover {
  background: #f5f5f5;
}

.mobile-nav-item.active {
  background: rgba(255, 107, 53, 0.1);
  color: var(--nav-secondary);
}

.mobile-nav-item .nav-icon {
  font-size: 1.3rem;
}

.mobile-menu-footer {
  padding: 20px 24px;
  border-top: 1px solid #eee;
  background: #fafafa;
}

.mobile-user-name {
  font-weight: 600;
  color: var(--nav-primary);
  margin-bottom: 12px;
}

.mobile-logout-btn {
  width: 100%;
  padding: 12px;
  border: 2px solid #ef4444;
  background: none;
  color: #ef4444;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--nav-transition);
}

.mobile-logout-btn:hover {
  background: #ef4444;
  color: #fff;
}

/* Footer */
.app-footer {
  background: linear-gradient(135deg, #0f0f1a, #1a1a2e);
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 24px 32px;
  margin-top: auto;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-brand {
  margin-bottom: 20px;
}

.footer-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
}

.footer-slogan {
  font-size: 0.9rem;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--nav-transition);
}

.footer-links a:hover {
  color: var(--nav-secondary);
}

.footer-divider {
  color: rgba(255, 255, 255, 0.3);
}

.footer-contact {
  text-align: center;
  margin: 16px 0;
  padding: 12px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-contact p {
  margin: 4px 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

.footer-contact .fa-weixin {
  color: #07c160;
  margin-right: 6px;
}

.footer-copyright {
  font-size: 0.85rem;
  line-height: 1.8;
}

.footer-icp {
  color: rgba(255, 255, 255, 0.4);
  margin-top: 4px;
}

/* 响应式 */
@media (max-width: 900px) {
  .nav-menu {
    display: none !important;
  }

  .nav-mobile-toggle {
    display: flex;
  }

  .nav-container {
    padding: 0 16px;
    height: 64px;
  }

  .nav-left {
    gap: 12px;
    flex-shrink: 0;
  }

  .nav-right {
    flex-shrink: 0;
  }

  .app-nav {
    width: 100%;
    overflow: hidden;
  }

  .user-dropdown {
    min-width: 140px;
  }
}

@media (max-width: 480px) {
  .nav-logo-text {
  white-space: nowrap;
    font-size: 1.1rem;
  }

  .mobile-menu {
    width: 100%;
    right: -100%;
  }
}