/**
 * Стили для Header и навигации
 * Современная структура с 3 зонами: Brand, Navigation, User Actions
 */

/* ==================== Основные стили Header ==================== */

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 1rem 1.5rem;
    background: white;
    border-bottom: 1px solid #e0e0e0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    margin-bottom: 1.5rem;
    border-radius: 8px;
}

/* ==================== Зона Branding ==================== */

.header-brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.2s;
}

.brand-link:hover {
    opacity: 0.8;
}

.brand-link:focus {
    outline: 2px solid #1a9850;
    outline-offset: 2px;
    border-radius: 4px;
}

.brand-icon {
    font-size: 2rem;
    line-height: 1;
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1a9850;
}

/* ==================== Зона Навигации ==================== */

.header-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list li {
    display: inline-flex;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    text-decoration: none;
    color: #333;
    border-radius: 6px;
    transition: all 0.2s;
    font-size: 0.9375rem;
    font-weight: 500;
    white-space: nowrap;
}

.nav-link:hover {
    background-color: #f5f5f5;
    color: #1a9850;
}

.nav-link:focus {
    outline: 2px solid #1a9850;
    outline-offset: 2px;
}

.nav-link.current-page {
    background-color: #1a9850;
    color: white;
}

.nav-link.current-page:hover {
    background-color: #157a3f;
}

.nav-link--admin {
    /* Дополнительные стили для админских ссылок при необходимости */
}

.nav-divider {
    width: 1px;
    height: 1.5rem;
    background-color: #e0e0e0;
    margin: 0 0.25rem;
}

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

.header-user {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.user-menu {
    position: relative;
}

.user-menu-trigger {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.875rem;
    color: #333;
    transition: all 0.2s;
}

.user-menu-trigger:hover {
    background-color: #f5f5f5;
    border-color: #1a9850;
}

.user-menu-trigger:focus {
    outline: 2px solid #1a9850;
    outline-offset: 2px;
}

.user-menu-trigger[aria-expanded="true"] {
    background-color: #f5f5f5;
    border-color: #1a9850;
}

.user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background-color: #1a9850;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.user-info-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.125rem;
    text-align: left;
}

.user-name {
    font-weight: 500;
    color: #333;
    line-height: 1.2;
}

.user-role {
    font-size: 0.75rem;
    color: #666;
    line-height: 1.2;
}

.user-menu-arrow {
    font-size: 0.625rem;
    color: #666;
    transition: transform 0.2s;
    flex-shrink: 0;
}

.user-menu-trigger[aria-expanded="true"] .user-menu-arrow {
    transform: rotate(180deg);
}

/* ==================== User Dropdown Menu ==================== */

.user-menu-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 12rem;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    list-style: none;
    margin: 0;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5rem);
    transition: all 0.2s;
    z-index: 1000;
}

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

.user-menu-dropdown li {
    display: block;
}

.user-menu-item {
    display: block;
    width: 100%;
    padding: 0.625rem 1rem;
    text-align: left;
    text-decoration: none;
    color: #333;
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.user-menu-item:hover {
    background-color: #f5f5f5;
}

.user-menu-item:focus {
    outline: 2px solid #1a9850;
    outline-offset: -2px;
}

.user-menu-item--logout {
    color: #d73027;
}

.user-menu-item--logout:hover {
    background-color: #fee;
    color: #b0261f;
}

.user-menu-separator {
    height: 1px;
    margin: 0.5rem 0;
    background-color: #e0e0e0;
}

/* ==================== Mobile Menu Toggle ==================== */

.mobile-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    background: transparent;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1.5rem;
    color: #333;
    transition: all 0.2s;
}

.mobile-menu-toggle:hover {
    background-color: #f5f5f5;
    border-color: #1a9850;
}

.mobile-menu-toggle:focus {
    outline: 2px solid #1a9850;
    outline-offset: 2px;
}

.mobile-menu-icon {
    line-height: 1;
}

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

@media (max-width: 768px) {
    .app-header {
        flex-wrap: wrap;
        gap: 1rem;
        padding: 1rem;
    }
    
    .header-nav {
        position: relative;
        order: 3;
        width: 100%;
        flex-basis: 100%;
    }
    
    .nav-list {
        position: absolute;
        top: calc(100% + 0.5rem);
        left: 0;
        right: 0;
        flex-direction: column;
        background: white;
        border: 1px solid #e0e0e0;
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        padding: 0.5rem;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
        z-index: 999;
    }
    
    .nav-list.mobile-open {
        max-height: 500px;
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list li {
        width: 100%;
    }
    
    .nav-list .nav-link {
        width: 100%;
        padding: 0.75rem 1rem;
        justify-content: flex-start;
    }
    
    .nav-divider {
        width: 100%;
        height: 1px;
        margin: 0.5rem 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
        margin-left: auto;
    }
    
    .brand-name {
        font-size: 1rem;
    }
    
    .user-menu-trigger {
        padding: 0.375rem 0.5rem;
        gap: 0.5rem;
    }
    
    .user-info-text {
        display: none;
    }
    
    .user-menu-dropdown {
        right: 0;
        left: auto;
        min-width: 10rem;
    }
}

@media (max-width: 480px) {
    .brand-icon {
        font-size: 1.5rem;
    }
    
    .brand-name {
        font-size: 0.875rem;
    }
    
    .nav-link {
        padding: 0.375rem 0.75rem;
        font-size: 0.875rem;
    }
    
    .user-avatar {
        width: 1.75rem;
        height: 1.75rem;
        font-size: 0.75rem;
    }
}

/* ==================== Интеграция с существующими стилями ==================== */

/* Обратная совместимость - старые классы */
header {
    background: white;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Если header не имеет класса app-header, применяем старые стили */
header:not(.app-header) {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header:not(.app-header) h1 {
    color: #1a9850;
}

/* Старые стили nav для обратной совместимости */
header:not(.app-header) nav {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}