/* --- Фейковые секции для демонстрации скролла (В продакшене не нужны) --- */
    /* body { margin: 0; padding: 0; font-family: sans-serif; } */
    /* .dummy-section {
            height: 1000px;
            background-color: #f0f0f0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #888;
            font-size: 2rem;
            border-bottom: 1px solid #ddd;
        } */

    /* --- Стили Калькулятора (Изолированные в .calculator-section) --- */

    /* 1. Контейнер секции (Обертка) */
    .calculator-section {
        /* Переменные (Scope: .calculator-section) */
        --color-bg: #F8FAFC;
        --color-white: #ffffff;
        --color-slate-50: #f8fafc;
        --color-slate-100: #f1f5f9;
        --color-slate-200: #e2e8f0;
        --color-slate-300: #cbd5e1;
        --color-slate-400: #94a3b8;
        --color-slate-500: #64748b;
        --color-slate-600: #475569;
        --color-slate-700: #334155;
        --color-slate-800: #1e293b;
        --color-slate-900: #0f172a;

        --color-blue-50: #eff6ff;
        --color-blue-500: #3b82f6;
        --color-blue-600: #2563eb;
        --color-blue-700: #1d4ed8;

        --color-indigo-50: #eef2ff;
        --color-indigo-500: #6366f1;
        --color-indigo-700: #4338ca;

        --font-main: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
        --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
        --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
        --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
        --shadow-footer: 0 -10px 40px -20px rgba(0, 0, 0, 0.1);

        /* Стили самой секции */
        width: 100%;
        background-color: var(--color-bg);
        font-family: var(--font-main);
        color: var(--color-slate-900);
        box-sizing: border-box;
        position: relative;
        /* Чтобы модалка могла позиционироваться относительно */
    }

    /* Сбрасываем box-sizing для всех вложенных элементов */
    .calculator-section *,
    .calculator-section *::before,
    .calculator-section *::after {
        box-sizing: border-box;
    }

    /* 2. Основной блок калькулятора (.calculator) */
    .calculator-section .calculator {
        max-width: 1152px;
        margin: 0 auto;
        padding: 3rem 1rem;
        padding-bottom: 80px;
        /* Отступ для sticky footer */
    }

    /* Утилиты внутри секции */
    .calculator-section .hidden {
        display: none !important;
    }

    .calculator-section .flex {
        display: flex;
    }

    .calculator-section .flex-col {
        flex-direction: column;
    }

    .calculator-section .items-center {
        align-items: center;
    }

    .calculator-section .justify-center {
        justify-content: center;
    }

    .calculator-section .text-center {
        text-align: center;
    }

    /* Заголовок */
    .calculator-section .header-badge {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        padding: 0.25rem 1.75rem;
        background-color: var(--color-white);
        border: 1px solid var(--color-slate-200);
        color: var(--color-slate-500);
        font-size: 1.5rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        border-radius: 9999px;
        margin-bottom: 1.5rem;
        box-shadow: var(--shadow-sm);
    }

    .calculator-section .header-badge span {
        display: flex;
        align-items: center;
    }

    /* .calculator-section h1,  */
    .calculator-section h2 {
        font-size: 1.875rem;
        font-weight: 900;
        letter-spacing: -0.025em;
        margin: 0 0 2.5rem 0;
        color: inherit;
        line-height: 1.2;
    }

    @media (min-width: 768px) {

        .calculator-section h1,
        .calculator-section h2 {
            font-size: 2rem;
        }
    }

    .calculator-section .subtitle {
        color: var(--color-slate-500);
        font-size: 0.875rem;
        font-weight: 600;
        max-width: 42rem;
        margin: 10px auto 15px;
        text-transform: uppercase;
    }

    /* --- How It Works Timeline --- */
    /* .timeline-section {
            background-color: var(--color-light-gray);
        }
        .timeline {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        
        .timeline-item {
            flex: 1;
            padding-top: 3rem;
            position: relative;
            z-index: 2;
        }
        .timeline-item::before {
            content: attr(data-step);
            position: absolute;
            top: 0;
            left: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: #fff;
            border: 2px solid var(--color-primary);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }
        .timeline-item .step-text {
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
        }
        .timeline-item p {
            color: var(--color-gray);
            margin: 0;
        }

        @media (min-width: 768px) {
            .timeline {
                flex-direction: row;
                justify-content: space-between;
                position: relative;
            }
        }

        @media (min-width: 768px) {
            .timeline::before {
                content: '';
                position: absolute;
                top: 16px;
                left: 30px;
                right: 0;
                height: 2px;
                background-color: var(--color-border);
                z-index: 1;
            }
        } */

    /* Табы */
    .calculator-section .tabs-wrapper {
        display: flex;
        justify-content: center;
        margin-bottom: 2.5rem;
    }

    .calculator-section .tabs-container {
        display: inline-flex;
        flex-wrap: wrap;
        justify-content: center;
        padding: 0.375rem;
        background-color: var(--color-white);
        border: 1px solid var(--color-slate-200);
        border-radius: 1rem;
        gap: 0.25rem;
        box-shadow: var(--shadow-sm);
    }

    .calculator-section .tab-btn {
        padding: 0.625rem 1.25rem;
        border-radius: 0.75rem;
        font-size: 0.875rem;
        font-weight: 700;
        border: none;
        cursor: pointer;
        transition: all 0.2s;
        background: transparent;
        color: var(--color-slate-500);
        line-height: 1.5;
    }

    .calculator-section .tab-btn:hover {
        background-color: var(--color-slate-50);
        color: var(--color-slate-900);
    }

    .calculator-section .tab-btn.active {
        background-color: var(--color-slate-900);
        color: var(--color-white);
        box-shadow: var(--shadow-md);
    }

    /* Инфо блок */
    .calculator-section .info-card {
        background-color: var(--color-white);
        border-radius: 1rem;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-slate-200);
        padding: 1rem 1.5rem;
        margin-bottom: 2.5rem;
        max-width: 64rem;
        margin-left: auto;
        margin-right: auto;
    }

    .calculator-section .info-content {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    @media (min-width: 768px) {
        .calculator-section .info-content {
            flex-direction: row;
            align-items: center;
            justify-content: space-between;
        }
    }

    .calculator-section .info-left h3 {
        font-size: 1.25rem;
        font-weight: 700;
        margin: 0 0 0.5rem 0;
        color: var(--color-slate-900);
        line-height: 1.4;
    }

    .calculator-section .tags {
        font-size: 0.875rem;
        color: var(--color-slate-500);
        font-weight: 500;
    }

    .calculator-section .tag-item {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        margin-bottom: 10px;
        line-height: 1.2rem;
    }

    .calculator-section .dot {
        width: 0.375rem;
        height: 0.375rem;
        border-radius: 50%;
    }

    .calculator-section .info-right {
        padding-top: 1rem;
        border-top: 1px solid var(--color-slate-100);
        display: flex;
        align-items: center;
        gap: 1.5rem;
    }

    .calculator-section .info-center a {
        color: var(--color-blue-500);
        font-size: 0.875rem;
    }

    @media (min-width: 768px) {
        .calculator-section .info-right {
            border-top: none;
            border-left: 1px solid var(--color-slate-100);
            padding-top: 0;
            padding-left: 1.5rem;
        }
    }

    .calculator-section .price-label {
        font-size: 0.625rem;
        font-weight: 700;
        color: var(--color-slate-400);
        text-transform: uppercase;
        letter-spacing: 0.1em;
        margin: 0 0 0.125rem 0;
    }

    .calculator-section .price-value {
        font-size: 1.5rem;
        font-weight: 900;
        letter-spacing: -0.025em;
        color: var(--color-slate-900);
        margin: 0;
        line-height: 1;
    }

    /* Tooltip */
    .calculator-section .tooltip-wrapper {
        position: relative;
    }

    .calculator-section .tooltip-icon {
        width: 2rem;
        height: 2rem;
        background-color: var(--color-slate-50);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--color-slate-400);
        cursor: help;
        transition: all 0.2s;
    }

    .calculator-section .tooltip-icon:hover {
        background-color: var(--color-blue-50);
        color: var(--color-blue-600);
    }

    .calculator-section .tooltip-content {
        position: absolute;
        bottom: 100%;
        right: -125px;
        margin-bottom: 0.5rem;
        width: 16rem;
        background-color: var(--color-slate-800);
        color: var(--color-white);
        font-size: 0.75rem;
        padding: 0.75rem;
        border-radius: 0.75rem;
        box-shadow: var(--shadow-xl);
        opacity: 0;
        visibility: hidden;
        transition: all 0.2s;
        pointer-events: none;
        z-index: 20;
    }

    .calculator-section .tooltip-wrapper:hover .tooltip-content {
        opacity: 1;
        visibility: visible;
    }

    /* Заголовок перед сеткой тарифов */
    .calculator-section .tiers-title {
        text-align: center;
        margin-bottom: 15px;
        font-size: 0.875rem;
        /* Не очень большой шрифт */
        color: var(--color-slate-500);
        /* Серый цвет */
        font-weight: 600;
        /* Жирность (опционально, но лучше для заголовка) */
        text-transform: uppercase;
        /* Все заглавные */
        letter-spacing: 0.05em;
        /* Немного разрядки */
    }

    /* Сетка тарифов */
    .calculator-section .tiers-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1.5rem;
        max-width: 1152px;
        margin: 0 auto;
    }

    @media (min-width: 768px) {
        .calculator-section .tiers-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }

    .calculator-section .tier-card {
        position: relative;
        background-color: var(--color-white);
        border-radius: 1rem;
        display: flex;
        flex-direction: column;
        cursor: pointer;
        transition: all 0.3s;
        border: 1px solid var(--color-slate-200);
    }

    .calculator-section .tier-card:hover {
        border-color: var(--color-slate-300);
        box-shadow: var(--shadow-lg);
    }

    .calculator-section .tier-card.selected {
        border-color: var(--color-blue-600);
        box-shadow: 0 0 0 2px var(--color-blue-600), var(--shadow-xl);
        transform: scale(1.02);
        z-index: 10;
    }

    .calculator-section .tier-card .check-badge {
        display: none;
    }

    .calculator-section .tier-card.selected .check-badge {
        display: flex;
    }

    .calculator-section .popular-badge {
        position: absolute;
        top: -0.75rem;
        left: 50%;
        transform: translateX(-50%);
        background-color: var(--color-slate-900);
        color: var(--color-white);
        padding: 0.25rem 0.75rem;
        border-radius: 9999px;
        font-size: 0.625rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.1em;
        box-shadow: var(--shadow-lg);
        display: flex;
        align-items: center;
        gap: 0.25rem;
        z-index: 20;
    }

    .calculator-section .check-badge {
        position: absolute;
        top: 1rem;
        right: 1rem;
        background-color: var(--color-blue-600);
        color: var(--color-white);
        border-radius: 50%;
        padding: 0.375rem;
        box-shadow: var(--shadow-md);
        z-index: 20;
    }

    .calculator-section .card-header {
        padding: 2rem 2rem 1rem 2rem;
    }

    .calculator-section .tier-title {
        display: inline-block;
        padding: 0.25rem 0.75rem;
        border-radius: 0.5rem;
        font-size: 0.75rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        margin-bottom: 1rem;
    }

    .calculator-section .tier-price-row {
        display: flex;
        align-items: baseline;
        gap: 0.25rem;
        margin-bottom: 0.5rem;
    }

    .calculator-section .tier-price-val {
        font-size: 2.25rem;
        font-weight: 900;
        color: var(--color-slate-900);
        letter-spacing: -0.05em;
    }

    .calculator-section .tier-price-curr {
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--color-slate-300);
    }

    .calculator-section .tier-desc {
        font-size: 0.875rem;
        font-weight: 500;
        color: var(--color-slate-700);
        line-height: 1.5;
        min-height: 2.5rem;
    }

    .calculator-section .card-features {
        flex-grow: 1;
        padding: 0.5rem 2rem 2rem 2rem;
    }

    @media (min-width: 768px) {
        .calculator-section .card-features {
            display: block !important;
        }
    }

    .calculator-section .divider {
        width: 100%;
        height: 1px;
        background-color: var(--color-slate-100);
        margin-bottom: 1.5rem;
    }

    .calculator-section .features-list {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .calculator-section .feature-item {
        display: flex;
        align-items: flex-start;
        font-size: 0.875rem;
    }

    .calculator-section .feature-icon {
        margin-right: 0.75rem;
        flex-shrink: 0;
    }

    .calculator-section .feature-text {
        color: var(--color-slate-700);
        font-weight: 500;
    }

    /* Мобильная кнопка */
    .calculator-section .mobile-toggle {
        display: none;
        width: 100%;
        padding: 1rem;
        border: none;
        background: transparent;
        border-top: 1px solid var(--color-slate-50);
        color: var(--color-slate-400);
        font-size: 0.875rem;
        font-weight: 700;
        cursor: pointer;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        transition: all 0.2s;
        border-radius: 0 0 1rem 1rem;
    }

    .calculator-section .mobile-toggle:hover {
        color: var(--color-slate-600);
        background-color: var(--color-slate-50);
    }

    @media (max-width: 767px) {
        .calculator-section .mobile-toggle {
            display: flex;
        }
    }

    /* Сноска */
    .calculator-section .footnote {
        text-align: center;
        padding: 0.5rem 1rem;
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 1rem;
        border-radius: 1rem;
        background: var(--color-slate-100);
        width: fit-content;
        margin: 1rem auto;
    }

    .calculator-section .footnote p {
        font-size: 0.875rem;
        color: var(--color-slate-600);
        line-height: 1.6;
        max-width: 42rem;
        margin: 0 auto;
    }

    /* Sticky Footer (Липкий футер) */
    .calculator-section .sticky-footer {
        position: fixed;
        /* Остается fixed, чтобы "прилипать" к окну */
        bottom: 0;
        left: 0;
        right: 0;
        background-color: rgba(255, 255, 255, 0.9);
        backdrop-filter: blur(12px);
        border-top: 1px solid rgba(226, 232, 240, 0.8);
        box-shadow: var(--shadow-footer);
        padding: 1rem;
        z-index: 50;
        transition: transform 0.3s ease, opacity 0.3s ease;
        /* Добавлена opacity */
    }

    /* Скрытое состояние (по скроллу) */
    .calculator-section .sticky-footer.hidden-by-scroll {
        transform: translateY(100%);
        opacity: 0;
        pointer-events: none;
    }

    /* Свернутое состояние футера (по кнопке) */
    .calculator-section .sticky-footer.collapsed {
        transform: translateY(calc(100% - 0.1rem));
        /* Оставляем "язычок" или скрываем почти полностью */
        opacity: 1;
        /* Виден, но свернут */
        pointer-events: auto;
    }

    /* Кнопка переключения футера */
    .calculator-section .footer-toggle {
        position: absolute;
        top: -1.5rem;
        /* Выносим за пределы футера сверху */
        left: 1rem;
        /* Слева, как вы просили */
        background-color: var(--color-white);
        border: 1px solid var(--color-slate-200);
        border-bottom: none;
        border-radius: 0.5rem 0.5rem 0 0;
        padding: 0.25rem 0.75rem;
        cursor: pointer;
        color: var(--color-slate-500);
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.05);
        transition: color 0.2s, background-color 0.2s;
        font-size: 0.75rem;
        font-weight: 700;
        text-transform: uppercase;
        z-index: 51;
    }

    .calculator-section .footer-toggle:hover {
        color: var(--color-blue-600);
        background-color: var(--color-slate-50);
    }

    /* Вращение иконки при свернутом состоянии */
    .calculator-section .sticky-footer.collapsed .footer-toggle svg {
        transform: rotate(180deg);
    }


    .calculator-section .footer-inner {
        max-width: 1152px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .calculator-section .footer-left {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
        width: 100%;
        text-align: center;
    }

    .calculator-section .total-price-block {
        display: flex;
        flex-direction: column;
        position: relative;
    }

    .calculator-section .total-label {
        font-size: 0.75rem;
        font-weight: 700;
        color: var(--color-slate-400);
        text-transform: uppercase;
        letter-spacing: 0.1em;
        margin: 0 0 0.25rem 0;
        position: absolute;
        top: -7px;
        left: calc(50% - 25px);
    }

    .calculator-section .total-value {
        font-size: 1.875rem;
        font-weight: 900;
        color: var(--color-slate-900);
        letter-spacing: -0.025em;
    }

    .calculator-section .price-breakdown {
        display: flex;
        align-items: center;
        gap: 1rem;
        font-size: 0.75rem;
        font-weight: 500;
        color: var(--color-slate-500);
        background-color: var(--color-slate-50);
        padding: 0.5rem 1rem;
        border-radius: 0.75rem;
        border: 1px solid var(--color-slate-100);
    }

    .calculator-section .breakdown-dot {
        width: 0.25rem;
        height: 0.25rem;
        background-color: var(--color-slate-300);
        border-radius: 50%;
    }

    .calculator-section .btn-order {
        width: 100%;
        background-color: var(--color-blue-600);
        color: var(--color-white);
        font-weight: 700;
        padding: 0.875rem 2rem;
        border-radius: 0.75rem;
        border: none;
        cursor: pointer;
        box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.2);
        transition: all 0.2s;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.625rem;
        font-size: 1rem;
    }

    .calculator-section .btn-order:hover {
        background-color: var(--color-blue-700);
        transform: translateY(-2px);
        box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.3);
    }

    .calculator-section .btn-order:active {
        transform: scale(0.98);
    }

    @media (max-width: 767px) {
        .calculator-section .sticky-footer {
            padding-top: 0.5rem;
        }

        .calculator-section .total-label {
            display: none;
        }

        .calculator-section .total-value {
            font-size: 1.5rem;
        }

        .calculator-section .tags {
            gap: 0.3rem;
        }
    }

    @media (min-width: 640px) {
        .calculator-section .footer-inner {
            flex-direction: row;
            justify-content: center;
        }

        .calculator-section .footer-left {
            flex-direction: row;
            width: auto;
            text-align: left;
            gap: 2rem;
        }

        .calculator-section .total-price-block {
            display: block;
        }

        .calculator-section .btn-order {
            width: auto;
        }

        .calculator-section .footer-separator {
            display: block;
            width: 1px;
            height: 2.5rem;
            background-color: var(--color-slate-200);
        }
    }

    @media (max-width: 639px) {
        .calculator-section .footer-separator {
            display: none;
        }
    }

    /* Темы карточек */
    .calculator-section .accent-base {
        background-color: var(--color-slate-100);
        color: var(--color-slate-600);
    }

    .calculator-section .accent-optimal {
        background-color: var(--color-blue-50);
        color: var(--color-blue-700);
    }

    .calculator-section .accent-max {
        background-color: var(--color-indigo-50);
        color: var(--color-indigo-700);
    }

    .calculator-section .icon-base {
        color: var(--color-slate-400);
    }

    .calculator-section .icon-optimal {
        color: var(--color-blue-500);
    }

    .calculator-section .icon-max {
        color: var(--color-indigo-500);
    }