/* ==========================================================================
   adaptive.css
   Современная адаптивная обёртка над легаси-шаблоном (styles.css / engine.css).
   Подключается ПОСЛЕ них, чтобы переопределить табличную/фиксированную вёрстку
   на flex/grid и добавить мобильное бургер-меню категорий.
   ========================================================================== */

:root {
    --vp-accent: #008BD3;
    --vp-accent-dark: #0074b3;
    --vp-orange: #ff6622;
    --vp-border: #e2e2e2;
    --vp-bg: #f4f6f8;
    --vp-text: #2b3a42;
    --vp-header-h: 68px;
    --vp-radius: 10px;
    --vp-max-width: 1200px;
    --vp-sidebar-w: 280px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    background: var(--vp-bg);
    color: var(--vp-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, Helvetica, sans-serif;
    margin: 0;
    overflow-x: hidden;
}

/* Снимаем легаси-ограничения ширины у обёрток движка, если они есть */
.wrapper, .wwide {
    min-width: 0 !important;
}

img { max-width: 100%; height: auto; }

/* ==========================================================================
   Шапка
   ========================================================================== */

.vp-header {
    position: static;
    background: #ffffff;
    border-bottom: 1px solid var(--vp-border);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.vp-header__inner {
    max-width: var(--vp-max-width);
    margin: 0 auto;
    min-height: var(--vp-header-h);
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.vp-header__logo {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
}

.vp-header__logo img {
    display: block;
    width: 220px;
    height: auto;
}

.vp-header__search {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1 1 220px;
    max-width: 380px;
}

.vp-header__search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    flex: 1 1 auto;
    width: 100%;
    border: 1px solid #cbdfe8;
    border-radius: 20px;
    background: #f7fafc;
    overflow: hidden;
}

.vp-header__search-wrapper:focus-within {
    outline: 2px solid var(--vp-accent);
    outline-offset: 1px;
    background: #fff;
}

.vp-header__search-input {
    flex: 1 1 auto;
    min-width: 0;
    width: auto;
    padding: 8px 6px 8px 14px;
    border: none;
    background: transparent;
    font-size: 14px;
    color: var(--vp-text);
    box-sizing: border-box;
}

.vp-header__search-input:focus {
    outline: none;
}
.vp-header__search-btn {
    border: none;
    background: transparent;
    width: 34px;
    height: 34px;
    margin-right: 2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    padding: 0;
}

.vp-header__search-btn svg {
    color: #a0aec0; /* Красивый серый цвет лупы, сочетающийся с плейсхолдером */
    transition: color 0.2s ease;
}
.vp-header__search-btn:hover svg {
    color: var(--vp-accent); /* При наведении окрашивается в ваш акцентный цвет */
}

.vp-header__login {
    font-size: 14px;
    white-space: nowrap;
    flex-shrink: 0;
}

/* ==========================================================================
   Бургер-кнопка (по умолчанию скрыта, показывается на мобильных)
   ========================================================================== */

.vp-burger {
    display: none;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--vp-border);
    background: #fff;
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer;
    flex-shrink: 0;
    font-size: 13px;
    color: var(--vp-text);
}

.vp-burger__box {
    width: 20px;
    height: 14px;
    position: relative;
    display: inline-block;
    flex-shrink: 0;
}

.vp-burger__line {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--vp-accent);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.2s ease, top 0.25s ease;
}

.vp-burger__line:nth-child(1) { top: 0; }
.vp-burger__line:nth-child(2) { top: 6px; }
.vp-burger__line:nth-child(3) { top: 12px; }

.vp-burger[aria-expanded="true"] .vp-burger__line:nth-child(1) {
    top: 6px;
    transform: rotate(45deg);
}
.vp-burger[aria-expanded="true"] .vp-burger__line:nth-child(2) {
    opacity: 0;
}
.vp-burger[aria-expanded="true"] .vp-burger__line:nth-child(3) {
    top: 6px;
    transform: rotate(-45deg);
}

.vp-burger__label { font-weight: 600; }

/* ==========================================================================
   Мобильное off-canvas меню категорий
   ========================================================================== */

.vp-mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(20, 30, 35, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease;
    z-index: 1400;
}

.vp-mobile-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.vp-mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 300px;
    max-width: 85vw;
    background: #fff;
    z-index: 1500;
    transform: translateX(-100%);
    visibility: hidden;
    transition: transform 0.28s ease, visibility 0s linear 0.28s;
    overflow-y: auto;
    box-shadow: 2px 0 14px rgba(0, 0, 0, 0.15);
    -webkit-overflow-scrolling: touch;
}

.vp-mobile-menu.is-open {
    transform: translateX(0);
    visibility: visible;
    transition: transform 0.28s ease, visibility 0s linear 0s;
}

.vp-mobile-menu__head {
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    background: var(--vp-accent);
    color: #fff;
    z-index: 1;
}

.vp-mobile-menu__title {
    font-weight: 700;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.vp-mobile-menu__close {
    border: none;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
}

.vp-mobile-menu__body {
    padding: 12px 10px 30px;
}

body.vp-menu-open {
    overflow: hidden;
}

/* ==========================================================================
   Основной макет: сайдбар + контент
   ========================================================================== */

.vp-layout {
    max-width: var(--vp-max-width);
    margin: 24px auto;
    padding: 0 20px;
    display: flex;
    align-items: flex-start;
    gap: 24px;
}

.vp-sidebar {
    flex: 0 0 var(--vp-sidebar-w);
    width: var(--vp-sidebar-w);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.vp-content {
    flex: 1 1 auto;
    min-width: 0;
}

.vp-content .vp-10 {
    background: #fff;
    border: 1px solid var(--vp-border);
    border-radius: var(--vp-radius);
    padding: 20px;
}

/* Карточки "Комментарии" / "Популярное" */
.popular-block {
    background: #fff;
    border: 1px solid var(--vp-border);
    border-radius: var(--vp-radius);
    overflow: hidden;
}

.popular-title {
    background: var(--vp-accent);
    color: #fff;
    padding: 12px 16px;
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.popular-content {
    padding: 12px 16px;
}

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

/* ==========================================================================
   Подвал
   ========================================================================== */

.vp-footer {
    max-width: var(--vp-max-width);
    margin: 20px auto 30px;
    padding: 16px 20px 0;
    border-top: 1px solid var(--vp-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
    color: #6c838e;
}

/* ==========================================================================
   Планшеты (<= 900px): скрываем список категорий в сайдбаре,
   т.к. на мобильных он доступен через бургер-меню
   ========================================================================== */

@media (max-width: 900px) {
    .vp-burger { display: inline-flex; }

    .vp-header__inner { gap: 12px; justify-content: space-between; }
    .vp-header__logo img { width: 170px; }
    .vp-header__login { order: 4; width: 100%; text-align: center; }
    .vp-header__search { order: 3; flex-basis: 100%; max-width: none; }

    .vp-layout {
        flex-direction: column;
    }

    .vp-sidebar {
        width: 100%;
        flex: 1 1 auto;
        order: 2; /* сайдбар (популярное/комментарии) уходит под контент */
    }

    .vp-content {
        order: 1; /* сам материал/список статей показываем первым */
    }

    /* Список категорий уходит в мобильное меню, в сайдбаре дублировать не нужно */
    .vp-sidebar__menu {
        display: none;
    }
}

/* ==========================================================================
   Мобильные (<= 560px): дополнительные уплотнения
   ========================================================================== */

@media (max-width: 560px) {
    .vp-header__inner { padding: 8px 12px; }
    .vp-header__logo img { width: 140px; }
    .vp-burger__label { display: none; }
    .vp-burger { padding: 8px; }

    .vp-layout { padding: 0 12px; margin: 16px auto; }
    .vp-content .vp-10 { padding: 14px; }

    .vp-footer { padding: 14px 12px 0; flex-direction: column; text-align: center; }
}

/* ==========================================================================
   Уважение к reduced-motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .vp-mobile-menu,
    .vp-mobile-overlay,
    .vp-burger__line {
        transition: none !important;
    }
}