/* ============================================================
   G Teach — Sticky Header + Footer (wave-2 task B)
   Scope: .gt-header-v2 (top header), .gt-footer (new global footer)
   Inspired by: Linear.app, Vercel, Notion
   ============================================================ */

/* ============================================================
   TOP HEADER — sticky, backdrop-blur, Linear-style
   Переопределяет базовый .header из /frontend/dist/css/style.min.css
   на страницах под layouts.default (класс .gt-header-v2 на body).
   ============================================================ */
.gt-header-v2 main.row-global__content > .header {
    position: sticky;
    top: 0;
    z-index: 40;

    background: rgba(255, 255, 255, 0.72);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    backdrop-filter: saturate(180%) blur(16px);

    border-bottom: 1px solid transparent;

    transition:
        background 220ms cubic-bezier(0.4, 0, 0.2, 1),
        border-color 220ms cubic-bezier(0.4, 0, 0.2, 1),
        box-shadow 220ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Состояние при скролле — появляется hairline-граница и лёгкая тень */
.gt-header-v2 main.row-global__content > .header.is-scrolled {
    background: rgba(255, 255, 255, 0.88);
    border-bottom-color: rgba(10, 10, 11, 0.08);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

/* Dark-mode варианты */
[data-theme="dark"] .gt-header-v2 main.row-global__content > .header {
    background: rgba(10, 10, 11, 0.72);
}
[data-theme="dark"] .gt-header-v2 main.row-global__content > .header.is-scrolled {
    background: rgba(10, 10, 11, 0.88);
    border-bottom-color: rgba(255, 255, 255, 0.08);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

/* Контейнер — стабилизируем padding, выравнивание и gap */
.gt-header-v2 main.row-global__content > .header .header__container {
    max-width: var(--gt-container-max, 1200px);
    margin: 0 auto;
    padding: 14px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 64px;
}

.gt-header-v2 main.row-global__content > .header .header__balance {
    display: none; /* пустой div — выкидываем, он ломал центрирование */
}

.gt-header-v2 main.row-global__content > .header .header__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    transition: opacity var(--gt-t-fast, 160ms);
}
.gt-header-v2 main.row-global__content > .header .header__logo:hover {
    opacity: 0.75;
}
.gt-header-v2 main.row-global__content > .header .header__logo img {
    height: 32px;
    width: auto;
    display: block;
}

.gt-header-v2 main.row-global__content > .header .header__setting {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

/* Pill-кнопки в шапке: primary + ghost */
.gt-header-v2 main.row-global__content > .header .header__button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: var(--gt-r-pill, 999px);
    font-family: var(--gt-font-body, 'Inter', system-ui, sans-serif);
    font-size: 15px;
    font-weight: var(--gt-w-semibold, 600);
    line-height: 1;
    text-decoration: none;
    border: 1px solid transparent;
    transition:
        transform var(--gt-t-fast, 160ms),
        background var(--gt-t-fast, 160ms),
        box-shadow var(--gt-t-fast, 160ms),
        color var(--gt-t-fast, 160ms);
}

/* Первая (основная) — fillred indigo */
.gt-header-v2 main.row-global__content > .header .header__setting > .header__button:last-child,
.gt-header-v2 main.row-global__content > .header .header__setting > .header__button:only-child {
    background: var(--gt-accent, #7B61FF);
    color: #fff;
}
.gt-header-v2 main.row-global__content > .header .header__setting > .header__button:last-child:hover,
.gt-header-v2 main.row-global__content > .header .header__setting > .header__button:only-child:hover {
    background: var(--gt-accent-hover, #6B51F0);
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(123, 97, 255, 0.25);
}

/* Если есть вторая (Выйти) — сделать ghost */
.gt-header-v2 main.row-global__content > .header .header__setting > .header__button:not(:last-child) {
    background: transparent !important;
    color: var(--gt-text-muted, #52525B);
    border-color: var(--gt-border, #E4E4E7);
}
.gt-header-v2 main.row-global__content > .header .header__setting > .header__button:not(:last-child):hover {
    background: var(--gt-bg-sunken, #F4F4F5) !important;
    color: var(--gt-text, #18181B);
    transform: translateY(-1px);
}

/* ============================================================
   FOOTER — глобальный, новый
   Вставляется в layouts/default.blade.php перед закрывающим </main>
   ============================================================ */
.gt-footer {
    margin-top: 0;
    background: var(--gt-black, #0A0A0B);
    color: rgba(255, 255, 255, 0.72);
    font-family: var(--gt-font-body, 'Inter', system-ui, sans-serif);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .gt-footer {
    background: #050507;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* Акцент-свечение сверху футера */
.gt-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(123, 97, 255, 0.6) 50%,
        transparent 100%
    );
}

.gt-footer__container {
    max-width: var(--gt-container-max, 1200px);
    margin: 0 auto;
    padding: 80px 32px 40px;
}

/* CTA-полоса сверху футера */
.gt-footer__cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding-bottom: 56px;
    margin-bottom: 56px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.gt-footer__cta-text {
    font-family: var(--gt-font-display, 'Manrope', sans-serif);
    font-size: 32px;
    font-weight: var(--gt-w-bold, 700);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: #fff;
    max-width: 560px;
}
.gt-footer__cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 28px;
    background: var(--gt-accent, #7B61FF);
    color: #fff;
    border-radius: var(--gt-r-pill, 999px);
    font-size: 16px;
    font-weight: var(--gt-w-semibold, 600);
    text-decoration: none;
    transition:
        transform var(--gt-t-fast, 160ms),
        background var(--gt-t-fast, 160ms),
        box-shadow var(--gt-t-fast, 160ms);
    flex-shrink: 0;
}
.gt-footer__cta-btn:hover {
    background: var(--gt-accent-hover, #6B51F0);
    transform: translateY(-1px);
    box-shadow: 0 12px 32px rgba(123, 97, 255, 0.4);
    color: #fff;
}
.gt-footer__cta-btn-arrow {
    width: 16px;
    height: 16px;
    transition: transform var(--gt-t-fast, 160ms);
}
.gt-footer__cta-btn:hover .gt-footer__cta-btn-arrow {
    transform: translateX(4px);
}

/* Сетка 4 колонки */
.gt-footer__grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 64px;
}
.gt-footer__brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.gt-footer__logo {
    font-family: var(--gt-font-display, 'Manrope', sans-serif);
    font-size: 24px;
    font-weight: var(--gt-w-bold, 700);
    color: #fff;
    text-decoration: none;
    letter-spacing: -0.01em;
}
.gt-footer__tagline {
    font-size: 15px;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.56);
    max-width: 320px;
}
.gt-footer__col-title {
    font-size: 13px;
    font-weight: var(--gt-w-semibold, 600);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.48);
    margin: 0 0 20px 0;
}
.gt-footer__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.gt-footer__link {
    color: rgba(255, 255, 255, 0.72);
    text-decoration: none;
    font-size: 15px;
    transition: color var(--gt-t-fast, 160ms);
}
.gt-footer__link:hover {
    color: #fff;
}

/* Нижняя полоса: copyright + юр.ссылки + соц */
.gt-footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.48);
    flex-wrap: wrap;
}
.gt-footer__legal {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}
.gt-footer__legal a {
    color: rgba(255, 255, 255, 0.48);
    text-decoration: none;
    transition: color var(--gt-t-fast, 160ms);
}
.gt-footer__legal a:hover {
    color: rgba(255, 255, 255, 0.88);
}
.gt-footer__social {
    display: flex;
    align-items: center;
    gap: 12px;
}
.gt-footer__social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.72);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition:
        background var(--gt-t-fast, 160ms),
        color var(--gt-t-fast, 160ms),
        transform var(--gt-t-fast, 160ms);
}
.gt-footer__social a:hover {
    background: var(--gt-accent, #7B61FF);
    color: #fff;
    transform: translateY(-2px);
}
.gt-footer__social svg {
    width: 18px;
    height: 18px;
}

/* Адаптивность до планшета 768px (моб.версия — в backlog) */
@media (max-width: 1024px) {
    .gt-header-v2 main.row-global__content > .header .header__container {
        padding: 12px 20px;
        min-height: 56px;
    }
    .gt-footer__container {
        padding: 64px 24px 32px;
    }
    .gt-footer__cta {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    .gt-footer__cta-text {
        font-size: 26px;
    }
    .gt-footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    .gt-footer__brand {
        grid-column: 1 / -1;
    }
    .gt-footer__bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ============================================================
   MOBILE — фикс горизонтального скролла + обрезанного логотипа
   На < 600px: ужимаем padding/gap, разрешаем сжатие .header__setting,
   ограничиваем ширину логотипа. Дополнительно <430px ужимаем кнопки.
   ============================================================ */
@media (max-width: 600px) {
    .gt-header-v2 main.row-global__content > .header .header__container {
        padding: 8px 12px;
        gap: 8px;
        min-height: 52px;
    }
    .gt-header-v2 main.row-global__content > .header .header__logo {
        flex-shrink: 1;
        min-width: 0;
        max-width: 110px;
    }
    .gt-header-v2 main.row-global__content > .header .header__logo img {
        max-width: 100%;
        height: auto;
        object-fit: contain;
    }
    .gt-header-v2 main.row-global__content > .header .header__setting {
        flex-shrink: 1;
        min-width: 0;
        gap: 6px;
    }
    .gt-header-v2 main.row-global__content > .header .header__button {
        padding: 8px 12px;
        font-size: 13px;
        max-width: 140px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        display: inline-block;
        line-height: 1.4;
    }
}

@media (max-width: 430px) {
    .gt-header-v2 main.row-global__content > .header .header__container {
        padding: 6px 10px;
        gap: 6px;
    }
    .gt-header-v2 main.row-global__content > .header .header__logo {
        max-width: 90px;
    }
    .gt-header-v2 main.row-global__content > .header .header__button {
        padding: 7px 10px;
        font-size: 12px;
        max-width: 110px;
    }
}

/* Поддержка prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .gt-header-v2 main.row-global__content > .header,
    .gt-footer__cta-btn,
    .gt-footer__social a {
        transition: none !important;
    }
    .gt-footer__cta-btn:hover,
    .gt-footer__social a:hover {
        transform: none !important;
    }
}

/* ============================================================
   MOBILE BURGER + DRAWER (plans/10-gtteach-mobile-burger.md, 2026-04-25)
   Раньше < 768px скрывали .row-global__menu через display:none.
   Теперь — drawer слева: меню превращается в выезжающий
   sidebar шириной 280px, активируется бургером в шапке.
   ============================================================ */

/* Бургер-кнопка — по умолчанию скрыта (только мобила) */
.gt-burger {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: transparent;
    border: 1px solid transparent;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
    color: #18181B;
    flex-shrink: 0;
    transition: background .15s ease, transform .15s ease;
}
.gt-burger:hover { background: #EEF2FF; }
.gt-burger:active { transform: scale(0.94); }
.gt-burger svg { width: 22px; height: 22px; }

/* Overlay тоже только на мобиле — на десктопе скрыт */
.gt-drawer-overlay { display: none; }

@media (max-width: 767px) {
    /* Бургер показываем как flex-кнопку в шапке */
    .gt-burger { display: flex; }

    /* Sidebar превращается в drawer.
       !important нужны чтобы перебить template/style.min.css правила
       @media(max-width:768px) { .row-global__menu { height:60px; overflow:hidden } }
       — это легаси-логика портала, которая ужимала меню до иконки. */
    .row-global__menu {
        display: flex !important;
        flex-direction: column !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        bottom: auto !important;
        width: 280px !important;
        max-width: 86vw !important;
        height: 100vh !important;
        height: 100dvh !important;
        z-index: 250 !important;
        transform: translateX(-100%);
        transition: transform .28s cubic-bezier(.4, 0, .2, 1);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch;
    }
    body.gt-drawer-open .row-global__menu { transform: translateX(0); }

    /* В drawer-режиме показываем полные пункты с текстом и счётчиками.
       Перебиваем template/style.min.css правила:
       - .menu-content .item__content { display: none } (глобальное)
       - .menu-content .item__text { display: none }   (mobile-only) */
    .row-global__menu .item__content {
        display: flex !important;
        position: relative !important;
        flex: 1 1 auto !important;
        align-items: center !important;
        justify-content: space-between !important;
        gap: 8px !important;
        min-width: 0 !important;
        padding: 0 !important;
        background: transparent !important;
        max-width: none !important;
    }
    .row-global__menu .item__text {
        display: block !important;
        flex: 1 1 auto !important;
        min-width: 0 !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
    }
    .row-global__menu .item__vector,
    .row-global__menu .item__count {
        display: inline-flex !important;
    }

    /* Контент тянется на всю ширину — sidebar больше не в потоке */
    .row-global__content { padding-left: 0 !important; }

    /* Overlay появляется поверх контента */
    .gt-drawer-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 15, 18, 0.42);
        backdrop-filter: blur(2px);
        -webkit-backdrop-filter: blur(2px);
        z-index: 240;
        opacity: 0;
        pointer-events: none;
        transition: opacity .25s ease;
    }
    body.gt-drawer-open .gt-drawer-overlay {
        opacity: 1;
        pointer-events: auto;
    }

    /* Scroll-lock на body когда drawer открыт */
    body.gt-drawer-open { overflow: hidden; }

    /* Reduced motion */
    @media (prefers-reduced-motion: reduce) {
        .row-global__menu,
        .gt-drawer-overlay { transition: none; }
    }
}