/* ============================================================
   Public site — layout chrome (shell, header, footer)
   Semantic classes for MainLayout / AppHeader / AppFooter,
   replacing the inline Tailwind utility chains.
   Uses the --tg-* design tokens from techgrid.css.
   Linked globally in ApplicationRoots/App.razor.
   ============================================================ */

/* ---------- App shell ---------- */
.tg-shell {
    display: flex;
    flex-direction: column;
    width: 100%;
    min-height: 100vh;
    background-color: var(--tg-bg);
    color: var(--tg-text);
}

.tg-shell__main {
    flex: 1;
}

/* ---------- Header ---------- */
.tg-dropdown-backdrop {
    position: fixed;
    inset: 0;
    z-index: 40;
}

.tg-header {
    position: sticky;
    top: 0;
    z-index: 50;
    width: 100%;
    background-color: rgba(16, 22, 34, 0.95);
    border-bottom: 1px solid var(--tg-bg-elev-2);
    backdrop-filter: blur(12px);
}

.tg-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

.tg-header__left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.tg-header__right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Logo (shared by header & footer) */
.tg-header .tg-logo,
.tg-footer .tg-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #fff;
}

.tg-logo__mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    color: #fff;
    background: linear-gradient(to bottom right, #0a1f4a, #1d4ed8);
    border-radius: var(--tg-radius-lg);
    overflow: hidden;
}

.tg-header .tg-logo__mark {
    box-shadow: 0 10px 15px -3px rgba(29, 78, 216, 0.35);
}

.tg-logo__mark img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    transform: scale(2.2);
}

.tg-logo__mark .material-symbols-outlined {
    font-size: 20px;
}

.tg-logo__text {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

/* Desktop nav */
.tg-nav {
    display: none;
    align-items: center;
    gap: 1.75rem;
}

.tg-nav__item {
    position: relative;
}

.tg-header .tg-nav__link,
.tg-nav__trigger {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--tg-text-muted);
    transition: color 0.2s ease;
}

.tg-header .tg-nav__link:hover,
.tg-nav__trigger:hover {
    color: #fff;
}

.tg-nav__trigger {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0;
    margin: 0;
    background: transparent;
    border: 0;
    cursor: pointer;
}

.tg-nav__arrow {
    font-size: 18px;
    transition: transform 0.2s ease;
}

.tg-nav__arrow.is-open {
    transform: rotate(180deg);
}

/* Dropdown menus */
.tg-dropdown {
    position: absolute;
    left: 0;
    top: 100%;
    margin-top: 0.75rem;
    width: 16rem;
    padding: 0.5rem;
    background-color: var(--tg-bg-elev);
    border: 1px solid var(--tg-bg-elev-2);
    border-radius: var(--tg-radius-xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    z-index: 50;
}

.tg-dropdown--right {
    left: auto;
    right: 0;
    width: 9rem;
    margin-top: 0.5rem;
}

.tg-dropdown__msg {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--tg-text-muted);
}

.tg-dropdown__item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: left;
    color: var(--tg-text-muted);
    background: transparent;
    border: 0;
    border-radius: var(--tg-radius-lg);
    cursor: pointer;
    transition: all 0.2s ease;
}

.tg-dropdown__item:hover {
    background-color: var(--tg-bg-elev-2);
    color: #fff;
}

.tg-dropdown__item--between {
    justify-content: space-between;
}

.tg-dropdown__check {
    color: var(--tg-primary);
    font-size: 18px;
}

/* Search box */
.tg-search {
    display: none;
    align-items: center;
    width: 16rem;
    height: 2.5rem;
    padding: 0 0.75rem;
    background-color: var(--tg-bg-elev-2);
    border-radius: var(--tg-radius-lg);
    transition: box-shadow 0.2s ease;
}

.tg-search:focus-within {
    box-shadow: 0 0 0 2px rgba(37, 106, 244, 0.5);
}

.tg-search--full {
    display: flex;
    width: 100%;
}

.tg-search__btn {
    display: flex;
    align-items: center;
    padding: 0;
    margin: 0;
    background: transparent;
    border: 0;
    color: var(--tg-text-muted);
    cursor: pointer;
    transition: color 0.2s ease;
}

.tg-search__btn:hover {
    color: #fff;
}

.tg-search__btn .material-symbols-outlined {
    font-size: 20px;
}

.tg-search .tg-search__input {
    margin-left: 0.5rem;
    width: 100%;
    padding: 0;
    font-size: 0.875rem;
    font-weight: 500;
    color: #fff;
    background-color: transparent;
    border: none;
    border-radius: 0;
}

.tg-search .tg-search__input::placeholder {
    color: var(--tg-text-muted);
}

.tg-search .tg-search__input:focus {
    outline: none;
    box-shadow: none;
}

/* Icon button (language toggle) */
.tg-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    color: var(--tg-text-muted);
    background: transparent;
    border: 1px solid var(--tg-bg-elev-2);
    border-radius: var(--tg-radius-lg);
    cursor: pointer;
    transition: all 0.2s ease;
}

.tg-icon-btn:hover {
    background-color: var(--tg-bg-elev-2);
    color: #fff;
}

.tg-icon-btn .material-symbols-outlined {
    font-size: 20px;
}

/* Mobile burger + menu */
.tg-burger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    color: #fff;
    background: transparent;
    border: 0;
    border-radius: var(--tg-radius-lg);
    cursor: pointer;
}

.tg-mobile-menu {
    border-top: 1px solid var(--tg-bg-elev-2);
    background-color: var(--tg-bg);
    padding: 0.75rem 1rem;
}

.tg-mobile-menu > * + * {
    margin-top: 0.5rem;
}

.tg-header .tg-mobile-link,
.tg-header .tg-mobile-sublink {
    display: block;
    width: 100%;
    text-align: left;
    font-size: 0.875rem;
    color: var(--tg-text-muted);
    background: transparent;
    border: 0;
    cursor: pointer;
}

.tg-header .tg-mobile-link {
    padding: 0.5rem 0;
    font-weight: 500;
}

.tg-header .tg-mobile-link:hover,
.tg-header .tg-mobile-sublink:hover {
    color: #fff;
}

.tg-mobile-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--tg-text-muted);
    cursor: pointer;
}

.tg-mobile-summary__arrow {
    font-size: 18px;
    transition: transform 0.2s ease;
}

.tg-mobile-group[open] .tg-mobile-summary__arrow {
    transform: rotate(180deg);
}

.tg-mobile-sub {
    padding-left: 0.75rem;
    margin-top: 0.25rem;
}

.tg-mobile-sub > * + * {
    margin-top: 0.25rem;
}

.tg-header .tg-mobile-sublink {
    padding: 0.375rem 0;
}

@media (min-width: 768px) {
    .tg-header__inner {
        padding: 0 1.5rem;
    }

    .tg-search {
        display: flex;
    }
}

@media (min-width: 1024px) {
    .tg-header__inner {
        padding: 0 2.5rem;
    }

    .tg-nav {
        display: flex;
    }

    .tg-burger {
        display: none;
    }
}

/* ---------- Footer ---------- */
.tg-footer {
    margin-top: 4rem;
    background-color: var(--tg-bg);
    border-top: 1px solid var(--tg-bg-elev-2);
}

.tg-footer__inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.tg-footer__top {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 2.5rem;
}

.tg-footer__brand {
    max-width: 24rem;
}

.tg-footer__brand .tg-logo {
    margin-bottom: 1rem;
}

.tg-footer__text {
    margin: 0 0 1.25rem;
    font-size: 0.875rem;
    color: var(--tg-text-muted);
}

.tg-footer__email {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1.5rem;
    font-size: 0.875rem;
    color: var(--tg-text-muted);
}

.tg-footer__email .material-symbols-outlined {
    color: var(--tg-primary);
    font-size: 18px;
}

.tg-footer__socials {
    display: flex;
    gap: 0.75rem;
}

.tg-footer .tg-social {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    color: var(--tg-text-muted);
    border: 1px solid var(--tg-bg-elev-2);
    border-radius: var(--tg-radius-full, 9999px);
    transition: all 0.2s ease;
}

.tg-footer .tg-social:hover {
    color: #fff;
    background-color: var(--tg-primary);
    border-color: var(--tg-primary);
}

.tg-footer .tg-social .material-symbols-outlined {
    font-size: 18px;
}

.tg-footer__heading {
    margin: 0 0 1rem;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #fff;
}

.tg-footer__links {
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.875rem;
}

.tg-footer__links > li + li {
    margin-top: 0.625rem;
}

.tg-footer .tg-footer__link {
    color: var(--tg-text-muted);
    transition: color 0.2s ease;
}

.tg-footer .tg-footer__link:hover {
    color: var(--tg-primary);
}

.tg-footer__bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    text-align: center;
    font-size: 0.875rem;
    color: var(--tg-text-muted);
    border-top: 1px solid var(--tg-bg-elev-2);
}

@media (min-width: 768px) {
    .tg-footer__top {
        flex-direction: row;
    }
}

@media (min-width: 1024px) {
    .tg-footer__inner {
        padding: 3rem 2.5rem;
    }
}