/* ===================================
   СБРОС И БАЗОВЫЕ СТИЛИ
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Цвета в стиле mnbagency.ru */
    --primary-bg: #0a0e27;
    --secondary-bg: #141937;
    --card-bg: #1a1f3a;
    --accent-blue: #2563eb;
    --accent-blue-hover: #3b82f6;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.1);
    --glow-color: rgba(37, 99, 235, 0.3);
    
    /* Шрифты */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Отступы */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Радиусы */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Тени */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px var(--glow-color);
}

body {
    font-family: var(--font-family);
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   ВОЛНИСТЫЙ ФОН (КАК НА MNBAGENCY.RU)
   =================================== */
.wave-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(180deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    overflow: hidden;
}

.wave-background::before,
.wave-background::after {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    animation: wave 20s ease-in-out infinite;
}

.wave-background::before {
    top: -50%;
    left: -50%;
    animation-delay: -10s;
}

.wave-background::after {
    bottom: -50%;
    right: -50%;
    animation-delay: -5s;
}

@keyframes wave {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(10%, 5%) scale(1.1);
    }
    50% {
        transform: translate(-5%, 10%) scale(0.9);
    }
    75% {
        transform: translate(-10%, -5%) scale(1.05);
    }
}

/* ===================================
   ЗАГОЛОВОК
   =================================== */
.header {
    position: relative;
    padding: var(--spacing-xl) 0;
    text-align: center;
    background: transparent;
    animation: fadeInDown 0.8s ease-out;
}

.header-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent-blue) 0%, #60a5fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.tagline {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 400;
    line-height: 1.4;
    max-width: 600px;
    margin: 0 auto;
}

/* Кнопка бургер-меню */
.burger-btn {
    display: none;
    position: fixed;
    top: 1rem;
    right: 1rem;
    flex-direction: column;
    justify-content: space-around;
    width: 40px;
    height: 40px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.burger-btn:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.burger-btn span {
    width: 100%;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.burger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.burger-btn.active span:nth-child(2) {
    opacity: 0;
}

.burger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* ===================================
   СЕЛЕКТОР НИШ
   =================================== */
.niche-selector {
    padding: var(--spacing-lg) 0;
}

.niche-selector .container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.niche-label {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.niche-dropdown {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-family: var(--font-family);
    background: var(--card-bg);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 250px;
}

.niche-dropdown:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.niche-dropdown:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

/* ===================================
   ОСНОВНОЙ КОНТЕНТ
   =================================== */
.main-content {
    padding: var(--spacing-xl) 0;
    animation: fadeIn 1s ease-out 0.5s both;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-xl);
}

/* ===================================
   БОКОВАЯ ПАНЕЛЬ КАТЕГОРИЙ
   =================================== */
.sidebar {
    position: sticky;
    top: var(--spacing-lg);
    height: fit-content;
}

.sidebar-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.category-list {
    list-style: none;
}

.category-item {
    margin-bottom: var(--spacing-xs);
}

.category-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.category-item:not(.disabled) .category-link:hover {
    border-color: var(--accent-blue);
    background: rgba(37, 99, 235, 0.1);
    box-shadow: var(--shadow-glow);
    transform: translateX(5px);
}

.category-item.active .category-link {
    border-color: var(--accent-blue);
    background: rgba(37, 99, 235, 0.15);
}

.category-item.disabled .category-link {
    opacity: 0.5;
    cursor: not-allowed;
}

.category-icon {
    font-size: 1.5rem;
}

.category-name {
    flex: 1;
    font-weight: 500;
}

.category-count {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--accent-blue);
    color: white;
    border-radius: 50%;
    font-size: 0.875rem;
    font-weight: 600;
}

.category-badge {
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ===================================
   КАРТОЧНАЯ СЕТКА РАЗДЕЛОВ
   =================================== */
.sections-grid {
    min-height: 600px;
}

.sections-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.section-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.section-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue), #60a5fa);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.section-card:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
    transform: translateY(-5px);
}

.section-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.card-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.card-button {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--accent-blue);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.card-button:hover {
    background: var(--accent-blue-hover);
    transform: translateX(5px);
}

.card-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: #dc2626;
    color: white;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 10;
    letter-spacing: 0.5px;
}

/* Внешние ссылки в модальном окне */
.external-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--accent-blue);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.external-link-btn:hover {
    background: var(--accent-blue-hover);
    transform: translateX(5px);
    box-shadow: var(--shadow-glow);
}

.cta-block {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(37, 99, 235, 0);
    }
}

/* ===================================
   МОДАЛЬНОЕ ОКНО
   =================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    overflow-y: auto;
    animation: fadeIn 0.3s ease-out;
}

.modal.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.modal-content {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 900px;
    width: 100%;
    padding: var(--spacing-xl);
    position: relative;
    animation: slideUp 0.4s ease-out;
    margin: var(--spacing-xl) 0;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--accent-blue);
    transform: rotate(90deg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.modal-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-niche-select {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.95rem;
    font-family: var(--font-family);
    background: var(--secondary-bg);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-niche-select:hover {
    border-color: var(--accent-blue);
}

.modal-body {
    color: var(--text-secondary);
    line-height: 1.8;
}

.modal-body h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.modal-body h4 {
    color: var(--accent-blue);
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.modal-body p {
    margin-bottom: var(--spacing-md);
}

.modal-body ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.modal-body li {
    margin-bottom: var(--spacing-xs);
}

.modal-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

.modal-body .script-block {
    background: var(--secondary-bg);
    border-left: 4px solid var(--accent-blue);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin: var(--spacing-md) 0;
    font-style: italic;
}

.modal-body .highlight {
    background: rgba(37, 99, 235, 0.2);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--accent-blue);
}

/* ===================================
   МОБИЛЬНАЯ НАВИГАЦИЯ
   =================================== */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border-top: 2px solid var(--border-color);
    padding: var(--spacing-sm);
    z-index: 100;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.3);
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
}

.mobile-nav::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Edge */
}

.mobile-nav-container {
    display: flex;
    gap: var(--spacing-xs);
    min-width: min-content;
}

.mobile-nav-btn {
    flex: 0 0 auto;
    min-width: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-xs);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.mobile-nav-btn.active {
    color: var(--accent-blue);
}

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

.mobile-nav-text {
    font-size: 0.75rem;
    font-weight: 500;
}

/* ===================================
   БУРГЕР-МЕНЮ (МОБИЛЬНОЕ)
   =================================== */

/* Overlay */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    display: block;
    opacity: 1;
}

/* Боковое меню */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    max-width: 85vw;
    height: 100%;
    background: var(--card-bg);
    border-left: 2px solid var(--border-color);
    z-index: 999;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.3);
}

.mobile-menu.active {
    display: block;
    transform: translateX(0);
}

/* Header меню */
.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    background: var(--card-bg);
    z-index: 10;
}

.mobile-menu-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.mobile-menu-close {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.mobile-menu-close:hover {
    background: var(--border-color);
    color: var(--accent-blue);
}

/* Навигация */
.mobile-menu-nav {
    padding: var(--spacing-md) 0;
}

.mobile-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu-item {
    margin: 0;
}

.mobile-menu-item.active .mobile-menu-link {
    background: rgba(37, 99, 235, 0.1);
    border-left: 4px solid var(--accent-blue);
    color: var(--accent-blue);
}

.mobile-menu-item.disabled .mobile-menu-link {
    opacity: 0.5;
    cursor: not-allowed;
}

.mobile-menu-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.mobile-menu-item:not(.disabled) .mobile-menu-link:hover {
    background: rgba(37, 99, 235, 0.05);
    border-left-color: var(--accent-blue);
}

.mobile-menu-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.mobile-menu-text {
    flex: 1;
    font-size: 1rem;
    font-weight: 500;
}

.mobile-menu-count {
    background: var(--accent-blue);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 24px;
    text-align: center;
}

.mobile-menu-badge {
    background: var(--border-color);
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ===================================
   АНИМАЦИИ
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

/* ===================================
   АДАПТИВНОСТЬ
   =================================== */

/* Ноутбуки (1280-1919px) */
@media (max-width: 1919px) {
    .container {
        max-width: 1200px;
    }
    
    .cards-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Планшеты (1024-1279px) */
@media (max-width: 1279px) {
    .content-wrapper {
        grid-template-columns: 240px 1fr;
        gap: var(--spacing-lg);
    }
    
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .sidebar {
        position: static;
    }
}

/* Планшеты (768-1023px) */
@media (max-width: 1023px) {
    /* Делаем header sticky на мобильных */
    .header {
        position: sticky;
        top: 0;
        padding: var(--spacing-sm) 0;
        background: var(--primary-bg);
        z-index: 100;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }
    
    .logo {
        font-size: 2rem;
        margin-bottom: 0.25rem;
        line-height: 1.1;
    }
    
    .tagline {
        font-size: 0.85rem;
        line-height: 1.3;
    }
    
    .content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
    
    /* Показываем кнопку бургер-меню */
    .burger-btn {
        display: flex;
    }
    
    /* Скрываем старое нижнее меню */
    .mobile-nav {
        display: none !important;
    }
    
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .main-content {
        padding-bottom: var(--spacing-xl);
    }
}

/* Мобильные (320-767px) */
@media (max-width: 767px) {
    .header {
        padding: 0.65rem 0;
    }
    
    .logo {
        font-size: 1.5rem;
        margin-bottom: 0.15rem;
    }
    
    .tagline {
        font-size: 0.75rem;
        padding: 0 3.5rem;
        line-height: 1.25;
    }
    
    .burger-btn {
        top: 0.5rem;
        right: 0.5rem;
        width: 36px;
        height: 36px;
    }
    
    .niche-selector .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .niche-dropdown {
        width: 100%;
        min-width: unset;
    }
    
    .sections-grid {
        min-height: auto;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .sections-title {
        font-size: 1.5rem;
    }
    
    .modal-content {
        padding: var(--spacing-lg);
    }
    
    .modal-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .modal-title {
        font-size: 1.5rem;
    }
    
    .modal-niche-select {
        width: 100%;
    }
    
    .modal-close {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        width: 36px;
        height: 36px;
    }
}

/* Маленькие мобильные (до 400px) */
@media (max-width: 400px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section-card {
        padding: var(--spacing-md);
    }
    
    .card-icon {
        font-size: 2.5rem;
    }
}