/* ============================================
   HEADER STYLES - Clean, Modern, Unified Design
   ============================================ */

:root {
    /* Color Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --text-dark: #1a1a1a;
    --text-gray: #555555;
    --text-light: #6b7280;
    --text-white: white;
    --bg-light: #ffffff;
    --white: #ffffff;
    --border-light: #e5e5e5;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 24px;

    /* Typography */
    --font-weight-normal: 500;
    --font-weight-bold: 700;

    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
}
.header_container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0px;
}
/* Base Header */
.site-header {
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-smooth);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.site-header:hover {
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.07);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* Header Content Layout */
.site-header .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-2xl);
}

/* Logo Section */
.site-header .logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
    flex-shrink: 0;
}

.site-header .logo:hover {
    opacity: 0.9;
}

.site-header .logo-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-light);
    font-weight: var(--font-weight-bold);
    font-size: 1.1rem;
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.site-header .logo:hover .logo-icon {
    transform: translateY(-2px);
}

.site-header .logo h3 {
    color: var(--text-dark);
    font-size: 1.4rem;
    font-weight: var(--font-weight-bold);
    margin: 0;
    letter-spacing: 0px;
    white-space: nowrap;
}

/* Navigation */
.site-header nav {
    position: relative;
    display: flex;
    justify-content: flex-end;
    margin-left: auto;
}

.site-header nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
    padding: 0;
    margin: 0;
    align-items: center;
    flex-wrap: wrap;
}

/* Navigation Items with Dropdowns */
.site-header nav .nav-item {
    position: relative;
}

.site-header nav a,
.site-header nav  {
    text-decoration: none;
    color: var(--text-gray);
    font-weight: var(--font-weight-normal);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 6px;
    transition: var(--transition-smooth);
    position: relative;
    font-size: 0.92rem;
    letter-spacing: 0.2px;
    display: inline-block;
    white-space: nowrap;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.site-header nav a::before,
.site-header nav .map-btn::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.site-header nav a:hover,
.site-header nav .map-btn:hover {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.08);
    transform: translateY(-2px);
}

.site-header nav a:hover::before,
.site-header nav .map-btn:hover::before {
    width: 30%;
}

/* Current Page Indicator */
.site-header nav a.active {
    color: var(--primary-color);
}

.site-header nav a.active::before {
    width: 100%;
}

/* Map Button */
.map-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    vertical-align: middle;
}

.map-icon {
    font-size: 1rem;
    line-height: 1;
    display: inline-flex;
    align-items: center;
}

/* Dropdown Menu Styles */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-light);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    max-width: 280px;
    padding: 8px 0;
    margin-top: 4px;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0.25s;
    display: flex;
    flex-direction: column;
    pointer-events: none;
}

/* Add padding area between nav item and dropdown to prevent gaps */
.nav-item.has-dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 12px;
    z-index: 1000;
}

.nav-item.has-dropdown:hover .dropdown-menu,
.nav-item.has-dropdown .dropdown-menu:hover {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0s;
    pointer-events: auto;
}

.dropdown-item {
    display: block;
    padding: 10px 20px;
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition-fast);
    white-space: nowrap;
    font-size: 0.9rem;
}

.dropdown-item::before {
    display: none !important;
}

.dropdown-item:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    transform: translateX(5px);
}

/* Site Map Modal Styles */
.site-map-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
}

.site-map-modal.active {
    display: flex;
}

/* Prevent background scroll when modal is open */
body.modal-open {
    overflow: hidden;
    position: relative;
}

.site-map-content {
    background: var(--bg-light);
    border-radius: 16px;
    max-width: 900px;
    width: 100%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.site-map-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 2px solid var(--border-light);
}

.site-map-header h2 {
    margin: 0;
    color: var(--text-dark);
    font-size: 1.8rem;
}

.site-map-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-gray);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.site-map-close:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
}

.site-map-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.site-map-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.site-map-section h3 {
    color: var(--text-dark);
    font-size: 1.2rem;
    margin: 0 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-color);
}

.site-map-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-map-section li {
    margin: 8px 0;
}

.site-map-section a {
    color: var(--text-gray);
    text-decoration: none;
    display: block;
    padding: 8px 12px;
    border-radius: 6px;
    transition: var(--transition-fast);
    font-size: 0.95rem;
}

.site-map-section a:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    transform: translateX(5px);
}

/* Mobile Menu Button */
.site-header .mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: var(--spacing-xs);
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 8px;
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.site-header .mobile-menu-btn:hover {
    background: rgba(102, 126, 234, 0.1);
}

.site-header .mobile-menu-btn span {
    width: 24px;
    height: 2.5px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* Hamburger Animation */
.site-header .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translateY(11px);
}

.site-header .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.site-header .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-11px);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .site-header {
        padding: 0;
    }

    .site-header .container {
        padding: 0 var(--spacing-sm);
    }

    .site-header .header-content {
        padding: var(--spacing-sm) 0;
        gap: var(--spacing-sm);
        flex-wrap: nowrap;
        align-items: center;
    }

    .site-header .logo-icon {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }

    .site-header .logo h3 {
        font-size: 1rem;
        letter-spacing: 0;
    }

    #logo-name {
        font-size: 14pt;
    }

    .site-header .logo {
        flex: 0.81;
        min-width: 0;
    }   

    /* Mobile Menu Button Display */
    .site-header .mobile-menu-btn {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        background: none;
        border: none;
        cursor: pointer;
        padding: 8px;
        border-radius: 8px;
        transition: background-color 0.3s ease;
        flex-shrink: 0;
        z-index: 1004;
        position: relative;
        width: auto;
        height: auto;
        gap: 5px;
    }

    .site-header .mobile-menu-btn:hover {
        background: rgba(102, 126, 234, 0.1);
    }

    /* Hamburger Lines - Clean centered design */
    .site-header .mobile-menu-btn .hamburger-line {
        display: inline-block;
        width: 24px;
        height: 2px;
        background: var(--primary-color);
        border-radius: 1px;
        transition: opacity 0.3s ease;
        margin: 0;
        padding: 0;
        line-height: 1;
    }

    /* X Icon - Hidden by default */
    .site-header .mobile-menu-btn .hamburger-x {
        display: none !important;
        font-size: 28px !important;
        font-weight: 300 !important;
        color: var(--primary-color) !important;
        line-height: 1 !important;
        margin: 0 !important;
        padding: 0 !important;
        position: absolute !important;
        top: 50% !important;
        left: 50% !important;
        transform: translate(-50%, -55%) !important;
        width: auto !important;
        height: auto !important;
        background: none !important;
        border: none !important;
    }

    /* When menu is active: hide lines, show X */
    .site-header .mobile-menu-btn.active .hamburger-line {
        opacity: 0 !important;
        visibility: hidden !important;
    }

    .site-header .mobile-menu-btn.active .hamburger-x {
        display: inline-block !important;
    }

    /* Navigation - Hide by default */
    .site-header nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: transparent;
        z-index: 998;
    }

    /* Navigation - Show when active */
    .site-header nav.active {
        display: block;
    }

    .site-header nav ul {
        position: fixed;
        top: 55px;
        left: 0;
        right: 0;
        background: var(--bg-light);
        flex-direction: column;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
        padding: 0;
        gap: 0;
        border-radius: 0;
        z-index: 999;
        width: 100%;
        display: flex;
        margin: 0;
        list-style: none;
    }

    .site-header nav.active ul {
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }

    .site-header nav li {
        width: 100%;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .site-header nav a {
        display: block;
        padding: var(--spacing-md) var(--spacing-lg);
        border-bottom: 1px solid var(--border-light);
        font-size: 0.95rem;
        color: var(--text-gray);
        text-decoration: none;
        transition: var(--transition-smooth);
    }

    .site-header nav a::before {
        display: none;
    }

    .site-header nav a.active {
        background: rgba(102, 126, 234, 0.08);
        color: var(--primary-color);
    }

    .site-header nav a:hover {
        background: rgba(102, 126, 234, 0.12);
    }

    /* DISABLE dropdown menus entirely on mobile - they break everything */
    /* Mobile should only have the map button functionality */
    .nav-item.has-dropdown .dropdown-menu {
        display: none !important;
        visibility: hidden !important;
        pointer-events: none !important;
        opacity: 0 !important;
    }

    .nav-item.has-dropdown.show-dropdown .dropdown-menu {
        display: none !important;
    }

    .nav-item.has-dropdown:hover .dropdown-menu {
        display: none !important;
    }

    .dropdown-menu {
        display: none !important;
    }

    .dropdown-item {
        display: none !important;
    }

    /* Map Button on Mobile */
    .map-btn {
        justify-content: flex-start;
        width: 100%;
        text-align: left;
    }

    /* Site Map Modal Mobile Styles */
    .site-map-content {
        max-height: 95vh;
        border-radius: 12px;
    }

    .site-map-header {
        padding: 16px;
    }

    .site-map-header h2 {
        font-size: 1.4rem;
    }

    .site-map-body {
        padding: 16px;
    }

    .site-map-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Extra Small Mobile (iPhone SE, small Android) */
@media (max-width: 374px) {
    .site-logo span {
        font-size: 12pt; /* Slightly smaller on very small screens */
    }

    .site-logo-icon {
        width: 36px;
        height: 36px;
    }

    .mobile-menu-btn {
        width: 40px;
        height: 40px;
    }

    .site-header nav a {
        font-size: 0.9rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* Базовые стили кнопки авторизации */
    .teacher-btn {
        display: flex;
        align-items: center;
        gap: 8px;
        background: transparent; 
        color: #7b5ea7;
        font-family: 'Nunito', sans-serif;
        font-size: .95rem;
        font-weight: 700;
        padding: 0 15px;
        height: 36px; 
        cursor: pointer;
        border: 1px solid #7b5ea7;
        border-radius: 20px;
        transition: background .2s, color .2s;
    }

    .teacher-btn:hover,
    .teacher-btn[aria-expanded="true"] {
        background: #7b5ea7;
        color: #fff;
    }

    /* Анимация стрелочки (chevron) */
    .teacher-btn .chevron {
        width: 13px;
        height: 13px;
        transition: transform .25s ease;
        flex-shrink: 0;
    }
    .teacher-btn[aria-expanded="true"] .chevron {
        transform: rotate(180deg);
    }

    /* Новая обертка для переноса блока на отдельную строку под меню с выравниванием СТИЛИЗАЦИЯ СПРАВА */
    .auth-block-row {
        display: flex !important;
        justify-content: flex-end !important; /* Прижимает кнопку к правому краю */
        width: 100% !important;
        margin-bottom: 20px !important; /* Задает отступ сверху от основного меню */
        box-sizing: border-box !important;
    }

    .teacher-info.auth-dropdown {
        position: relative !important;
        display: inline-block !important;
    }

    /* Стили выпадающего изолированного меню */
    .auth-dropdown-menu {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        position: absolute !important;
        top: calc(100% + 8px) !important; 
        right: 0 !important; /* Меню открывается влево, не выезжая за границу экрана */
        left: auto !important; 
        z-index: 99999 !important; 
        background-color: #ffffff !important; 
        border: 1px solid #e2e8f0 !important;
        border-radius: 12px !important;
        box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1) !important;
        padding: 8px !important;
        min-width: 240px !important;
        box-sizing: border-box !important;
        flex-direction: column !important;
    }

    .auth-dropdown-menu.show-auth {
        display: flex !important; 
        visibility: visible !important;
        opacity: 1 !important;
    }

    .auth-dropdown-menu .dropdown-divider {
        border-top: 1px solid #e2e8f0 !important;
        margin: 8px 0 !important;
        display: block !important;
        height: 1px !important;
        width: 100% !important;
    }

    /* Индивидуальные ссылки/кнопки внутри выпадающего списка */
    .auth-dropdown-item {
        font-family: 'Nunito', sans-serif !important;
        font-weight: 500 !important;
        font-size: .92rem !important;
        transition: background-color 0.15s ease, color 0.15s ease !important;
        cursor: pointer !important;
        border: none !important;
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
        width: 100% !important;
        padding: 10px 16px !important;
        color: #2d3748 !important;
        text-decoration: none !important;
        background: transparent !important;
        box-sizing: border-box !important;
    }

    .auth-dropdown-item:hover {
        background-color: #f0eaff !important;
        color: #7b5ea7 !important;
    }

    .auth-dropdown-item.active-role {
        background-color: #f0ecf7 !important;
        font-weight: 600 !important;
    }
    
    .auth-dropdown-item.active-role span {
        color: #5a437e !important;
    }

    @media (max-width: 768px) {
        .auth-block-row {
            justify-content: center !important; /* На мобилках выравниваем по центру */
        }
    }