/* ===== Header Component Styles ===== */

/* CSS Custom Properties - Design System */
/* Все переменные теперь определены в style.css */

/* ===== Main Header Container ===== */

.site-header {
  position: relative;
  padding: 10px;
  width: 100%;
  z-index: 1000;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1440px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  background: var(--color-white-100);
  padding: 8px 8px 8px 24px;
  border: 1px solid rgba(26, 27, 48, 0.05);
}

/* ===== Logo Section ===== */

.header-logo {
  flex-shrink: 0;
}

@media (max-width: 576px) {
  .header-logo {
    display: none;
  }
}

.header-logo a {
  display: inline-block;
  text-decoration: none;
}

.logo-img {
  width: 152px;
  height: 46px;
  object-fit: contain;
  display: block;
}

/* ===== Navigation Menu ===== */

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

.nav-tabs {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  column-gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-fast);
  overflow: hidden;
  position: relative;
  border: none;
  background: transparent;
  min-width: 120px;
}

.nav-tab span {
  line-height: 20px;
  letter-spacing: 0;
  color: var(--color-black-50);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
}

.nav-tab--active {
  background: var(--color-off-white-1);
}

.nav-tab--active span {
  color: var(--color-black-100);
  font-weight: var(--font-weight-semibold);
}

.nav-tab:hover:not(.nav-tab--active) {
  background: rgba(255, 255, 255, 0.7);
}

.nav-tab:hover:not(.nav-tab--active) span {
  color: var(--color-black-100);
}

.nav-tab:focus {
  outline: 2px solid var(--color-accent-100);
  outline-offset: 2px;
}

.nav-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.nav-tab:hover .nav-icon {
  opacity: 1;
}

/* ===== User Actions ===== */

.header-actions {
  display: inline-flex;
  align-items: center;
  column-gap: var(--space-2);
}

.user-info {
  display: inline-flex;
  align-items: center;
  column-gap: var(--space-3);
  padding-left: var(--space-6);
  border-radius: var(--radius-xl);
  transition: background-color var(--transition-fast);
}

.user-info:hover {
  background: rgba(243, 244, 255, 0.3);
}

.user-details {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0;
}

.user-name {
  line-height: 19.2px;
  letter-spacing: 0;
  color: var(--color-black-100);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  margin: 0;
  text-align: right;
}

.user-role {
  line-height: 20px;
  letter-spacing: 0;
  color: var(--color-black-50);
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-regular);
  margin: 0;
  text-align: right;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-avatar-link {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.user-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--color-off-white-1);
  width: 56px;
  height: 56px;
  overflow: hidden;
  transition: all var(--transition-fast);
  position: relative;
}

.user-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-avatar-link:hover .user-avatar {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.user-avatar-link:focus {
  outline: 2px solid var(--color-accent-100);
  outline-offset: 2px;
  border-radius: var(--radius-full);
}

.user-avatar-link:active .user-avatar {
  transform: translateY(0);
}

.user-menu-btn,
.notification-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--color-off-white-1);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  width: 56px;
  height: 56px;
}

.user-menu-btn:hover,
.notification-btn:hover {
  background: var(--color-off-white-2);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.user-menu-btn:focus,
.notification-btn:focus {
  outline: 2px solid var(--color-accent-100);
  outline-offset: 2px;
}

.user-menu-btn:active,
.notification-btn:active {
  transform: translateY(0);
}

/* Active states for JavaScript interactions */
.user-menu-btn--active,
.notification-btn--active {
  background: var(--color-off-white-3);
  transform: scale(0.95);
}

.nav-tab--clicked {
  transform: scale(0.98);
}

.btn-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.login-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  background: var(--color-accent-100);
  color: var(--color-white-100);
  text-decoration: none;
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
}

.login-btn:hover {
  background: #9a4d05;
  color: var(--color-white-100);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(180, 90, 6, 0.3);
}

.login-btn:active {
  transform: translateY(0);
}

.login-btn:focus {
  outline: 2px solid var(--color-black-100);
  outline-offset: 2px;
}

/* ===== Responsive Design ===== */

@media (max-width: 1024px) {
  .header-container {
    padding: 8px 16px 8px 20px;
  }
  
  .user-details {
    max-width: 150px;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 8px 16px;
  }
  
  .user-details {
    display: none;
  }
  
  .nav-tab span {
    display: none;
  }
  
  .nav-tab {
    padding: var(--space-3);
    min-width: 48px;
  }
  
  .user-info {
    padding-left: var(--space-4);
  }
  
  .nav-tabs {
    gap: 2px;
    padding: 2px;
  }
  
  .nav-tab {
    border-radius: var(--radius-md);
  }
}

@media (max-width: 480px) {
  .site-header {
    padding: 5px;
  }
  
  .header-container {
    border-radius: var(--radius-lg);
    padding: 8px 12px;
    min-height: 64px;
  }
  
  .logo-img {
    width: 120px;
    height: 36px;
  }
  
  .user-avatar {
    width: 50px;
    height: 50px;
  }

  .user-menu-btn,
  .notification-btn {
    width: 44px;
    height: 44px;
    padding: 8px;
  }
  
  .user-info {
    padding-left: var(--space-3);
  }
  
  .nav-tab {
    padding: var(--space-3);
  }
  
  .nav-icon {
    width: 25px;
    height: 25px;
  }
}

/* ===== Accessibility ===== */

/* Focus styles for keyboard navigation */
.nav-tab:focus-visible,
.login-btn:focus-visible,
.user-menu-btn:focus-visible,
.notification-btn:focus-visible {
  outline: 2px solid var(--color-accent-100);
  outline-offset: 2px;
}

/* Hide outline for mouse users */
.nav-tab:focus:not(:focus-visible),
.login-btn:focus:not(:focus-visible),
.user-menu-btn:focus:not(:focus-visible),
.notification-btn:focus:not(:focus-visible) {
  outline: none;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .nav-tab {
    border: 1px solid var(--color-black-100);
  }
  
  .nav-tab--active {
    border-color: var(--color-accent-100);
  }
  
  .user-menu-btn,
  .notification-btn {
    border: 1px solid var(--color-black-50);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .nav-tab,
  .user-menu-btn,
  .notification-btn,
  .login-btn,
  .user-info {
    transition: none;
  }
  
  .nav-tab:hover,
  .user-menu-btn:hover,
  .notification-btn:hover,
  .login-btn:hover {
    transform: none;
  }
}

/* ===== Print Styles ===== */

@media print {
  .site-header {
    background: transparent;
    padding: 0;
  }
  
  .header-container {
    background: transparent;
    border: 1px solid #000;
    border-radius: 0;
  }
  
  .header-actions {
    display: none;
  }
}