/**
 * ========================================
 * 05-header.css
 * ========================================
 * Назначение: Стили для шапки сайта
 * ========================================
 */

/* ========== Header ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 70px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  z-index: var(--z-header);
  transition: all var(--transition-base);
}

html[data-theme="dark"] .header {
  background: rgba(15, 23, 42, 0.9);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

/* ========== Header Container ========== */
.header__container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 100%;
  padding: 0 var(--spacing-xl);
}

/* ========== Logo ========== */
.header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: transform var(--transition-base);
}

.header__logo:hover {
  transform: translateY(-2px);
}

.header__logo-icon {
  width: 38px;
  height: 38px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: white;
}

/* ========== Title ========== */
.header__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
  line-height: 1.2;
}

/* ========== Version ========== */
.header__version {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-left: var(--spacing-sm);
}

/* ========== Navigation / Actions ========== */
.header__nav,
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* ========== Theme Toggle ========== */
.header__theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  font-size: var(--text-sm);
}

.header__theme-toggle:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  transform: rotate(180deg);
}

/* ========== Mobile sidebar toggle ========== */
.sidebar-toggle-mobile {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: var(--text-lg);
  transition: all var(--transition-base);
}

.sidebar-toggle-mobile:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* ========== Login Button ========== */
.header__login-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: all var(--transition-base);
}

.header__login-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

/* ========== User Display ========== */
.user-display {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.user-display:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.user-display__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
}

.user-display__name {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-primary);
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-display__admin-link {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  font-size: var(--text-lg);
}

.user-display__admin-link:hover {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-color);
}

.user-display__logout {
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  font-size: var(--text-lg);
  padding: 0;
}

.user-display__logout:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.header__nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.header__nav-link:hover {
  color: var(--primary-color);
  background: rgba(37, 99, 235, 0.06);
}