/*
 * Sticky header, mobile nav, and footer — used on every public page.
 * Hairline-thin, calm chrome that lets the page content breathe.
 */

/* ============================================================
   HEADER
   ============================================================ */
.ub-header {
    position: sticky;
    top: 0;
    z-index: var(--ub-z-header);
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--ub-color-divider);
}

.ub-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ub-space-2xl);
    max-width: var(--ub-container-wide);
    margin-inline: auto;
    padding-inline: clamp(16px, 4vw, 32px);
    min-height: var(--ub-header-height);
}

.ub-header__brand {
    display: flex;
    align-items: center;
    gap: var(--ub-space-l);
    flex-shrink: 0;
}

.ub-header__logo {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.ub-header__brand-name {
    font-size: var(--ub-text-base);
    font-weight: 600;
    letter-spacing: 0.01em;
    color: var(--ub-color-heading);
    line-height: 1.2;
}

/* Primary nav (desktop) */
.ub-nav {
    display: none;
    gap: var(--ub-space-l);
    flex: 1;
    justify-content: center;
}

.ub-nav__group {
    position: relative;
}

.ub-nav__disclosure {
    display: flex;
    align-items: center;
    border-radius: var(--ub-radius-xs);
    transition: background-color var(--ub-transition-fast);
}

.ub-nav__item {
    display: flex;
    align-items: center;
    padding-inline: var(--ub-space-m);
    height: var(--ub-size-icon-chip-sm);
    font-size: var(--ub-text-base);
    font-weight: 500;
    color: var(--ub-color-heading);
    cursor: pointer;
    border-radius: var(--ub-radius-xs);
    transition: color var(--ub-transition-fast);
    background: transparent;
    border: none;
    font-family: inherit;
    text-decoration: none;
    white-space: nowrap;
}

.ub-nav__item--disclosure-label {
    padding-inline-end: var(--ub-space-xs);
    border-start-end-radius: 0;
    border-end-end-radius: 0;
}

.ub-nav__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--ub-size-icon-chip-sm);
    height: var(--ub-size-icon-chip-sm);
    flex-shrink: 0;
    padding: 0;
    border: 0;
    border-radius: 0 var(--ub-radius-xs) var(--ub-radius-xs) 0;
    background: transparent;
    color: var(--ub-color-heading);
    cursor: pointer;
    transition: color var(--ub-transition-fast);
}

.ub-nav__group:hover .ub-nav__disclosure,
.ub-nav__group:focus-within .ub-nav__disclosure,
.ub-nav__group.is-open .ub-nav__disclosure,
.ub-nav__group.is-current .ub-nav__disclosure {
    background-color: var(--ub-color-hover-tint);
}

.ub-nav__item:hover,
.ub-nav__item:focus-visible,
.ub-nav__toggle:hover,
.ub-nav__toggle:focus-visible,
.ub-nav__group.is-open .ub-nav__item,
.ub-nav__group.is-open .ub-nav__toggle,
.ub-nav__group.is-current .ub-nav__item,
.ub-nav__group.is-current .ub-nav__toggle,
.ub-nav__item.is-current {
    color: var(--ub-color-brand);
}

.ub-nav__toggle svg {
    opacity: 0.62;
    transition: transform var(--ub-transition-fast), opacity var(--ub-transition-fast);
}

.ub-nav__toggle:hover svg,
.ub-nav__toggle:focus-visible svg {
    opacity: 1;
}

.ub-nav__toggle[aria-expanded="true"] svg {
    opacity: 1;
    transform: rotate(180deg);
}

/* === Desktop disclosure panels ===
   The live navigation field is the focal point; the narrow warm panel is a
   quiet context note rather than a competing feature or call to action. */
.ub-dropdown {
    position: fixed;
    top: var(--ub-header-height);
    left: 0;
    right: 0;
    width: 100%;
    max-height: calc(100vh - var(--ub-header-height));
    max-height: calc(100dvh - var(--ub-header-height));
    overflow-y: auto;
    overscroll-behavior: contain;
    background-color: var(--ub-color-white);
    z-index: var(--ub-z-header);
    border-bottom: 1px solid var(--ub-color-divider);
    box-shadow: var(--ub-shadow-elevated);
}

.ub-dropdown[hidden] {
    display: none;
}

.ub-dropdown__inner {
    max-width: var(--ub-container-wide);
    margin-inline: auto;
    padding-inline: clamp(16px, 4vw, 32px);
    padding-block: var(--ub-space-2xl);
}

.ub-dropdown:not([hidden]) .ub-dropdown__inner {
    animation: ub-dropdown-enter var(--ub-transition-base) both;
}

@keyframes ub-dropdown-enter {
    from {
        opacity: 0;
        transform: translateY(calc(var(--ub-space-s) * -1));
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ub-dropdown__split {
    display: grid;
    grid-template-columns: minmax(0, 2.85fr) minmax(0, 1fr);
    gap: var(--ub-space-2xl);
    align-items: stretch;
}

.ub-dropdown__links {
    display: flex;
    flex-direction: column;
    gap: var(--ub-space-xl);
    padding-block: var(--ub-space-s);
    min-width: 0;
}

.ub-dropdown__sub-title {
    font-size: var(--ub-text-lg);
    font-weight: 600;
    line-height: var(--ub-leading-snug);
    color: var(--ub-color-accent);
    margin: 0;
}

.ub-dropdown__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--ub-space-xs) var(--ub-space-2xl);
    margin: 0;
    padding: 0;
    list-style: none;
}

.ub-dropdown__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ub-space-l);
    min-height: var(--ub-size-icon-chip-lg);
    padding: var(--ub-space-l) var(--ub-space-xl);
    border-radius: var(--ub-radius-sm);
    font-size: var(--ub-text-base);
    font-weight: 500;
    color: var(--ub-color-body);
    transition: color var(--ub-transition-fast),
                background-color var(--ub-transition-fast);
}

.ub-dropdown__row:hover,
.ub-dropdown__row:focus-visible {
    background-color: var(--ub-color-section-soft);
    color: var(--ub-color-accent);
}

.ub-dropdown__row-label {
    min-width: 0;
    flex: 1;
}

.ub-dropdown__row-arrow {
    flex-shrink: 0;
    color: currentColor;
    opacity: 0.42;
    transition: opacity var(--ub-transition-fast),
                transform var(--ub-transition-fast);
}

.ub-dropdown__row:hover .ub-dropdown__row-arrow,
.ub-dropdown__row:focus-visible .ub-dropdown__row-arrow {
    opacity: 1;
    transform: translateX(var(--ub-space-xs));
}

/* Quiet contextual note beside the dominant white navigation field. */
.ub-dropdown__feature {
    background-color: var(--ub-color-dropdown-note-bg);
    border: 1px solid var(--ub-color-dropdown-feature-border);
    color: var(--ub-color-body);
    padding: var(--ub-space-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--ub-space-l);
    align-self: stretch;
    border-radius: var(--ub-radius-lg);
    text-align: center;
}

.ub-dropdown__feature-title {
    font-size: var(--ub-text-md);
    font-weight: 600;
    color: var(--ub-color-accent);
    line-height: var(--ub-leading-snug);
    margin: 0;
}

.ub-dropdown__feature-text {
    margin: 0;
    color: var(--ub-color-body-muted);
    font-size: var(--ub-text-sm);
    line-height: var(--ub-leading-body);
}

/* The global peach ring is too close to the footer's pale warm surfaces. */
body.ub-public .ub-footer :focus-visible {
    outline-color: var(--ub-color-heading);
}

/* Hide desktop dropdowns on mobile (drawer takes over) */
@media (max-width: 1023px) {
    .ub-dropdown {
        display: none !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ub-dropdown:not([hidden]) .ub-dropdown__inner {
        animation: none;
    }
}

/* Header right cluster (locale + icons) */
.ub-header__actions {
    display: flex;
    align-items: center;
    gap: var(--ub-space-l);
    flex-shrink: 0;
}

body.ub-public a.ub-header__phone {
    display: none;
    align-items: center;
    gap: var(--ub-space-s);
    min-height: var(--ub-size-touch-target);
    padding-inline: var(--ub-space-xl);
    border-radius: var(--ub-radius-pill);
    background-color: var(--ub-color-accent);
    color: var(--ub-color-on-dark);
    font-size: var(--ub-text-sm);
    font-weight: 600;
    line-height: 1;
    transition:
        background-color var(--ub-transition-fast),
        color var(--ub-transition-fast);
}

body.ub-public a.ub-header__phone:hover,
body.ub-public a.ub-header__phone:focus-visible {
    background-color: var(--ub-color-accent-hover);
    color: var(--ub-color-on-dark);
}

body.ub-public a.ub-header__phone svg {
    flex-shrink: 0;
    color: currentColor;
}

.ub-locale {
    display: inline-flex;
    align-items: center;
    gap: var(--ub-space-s);
    padding: 8px 12px;
    border-radius: var(--ub-radius-pill);
    transition: background-color var(--ub-transition-fast);
    line-height: 1;
    text-decoration: none;
    min-height: var(--ub-size-touch-target);
}

.ub-locale:hover {
    background-color: var(--ub-color-hover-tint);
}

.ub-locale__code {
    font-family: var(--ub-font-body);
    font-size: var(--ub-text-sm);
    font-weight: 600;
    color: var(--ub-color-heading);
    letter-spacing: 0.02em;
}

.ub-header__icons {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ub-header__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--ub-size-touch-target);
    height: var(--ub-size-touch-target);
    border-radius: var(--ub-radius-pill);
    color: var(--ub-color-heading);
    transition: color var(--ub-transition-fast),
                background-color var(--ub-transition-fast);
}

.ub-header__icon:hover {
    color: var(--ub-color-brand);
    background-color: var(--ub-color-hover-tint);
}

.ub-header__icon svg {
    width: 18px;
    height: 18px;
    display: block;
}

.ub-header__icon--cart {
    position: relative;
}

.ub-header__icon-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background-color: var(--ub-color-accent);
    color: var(--ub-color-on-dark);
    border-radius: var(--ub-radius-pill);
    font-size: var(--ub-text-xs);
    font-weight: 600;
    line-height: 18px;
    text-align: center;
}

/* Mobile menu toggle */
.ub-header__menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--ub-radius-pill);
    color: var(--ub-color-heading);
    transition: background-color var(--ub-transition-fast);
}

.ub-header__menu-toggle:hover {
    background-color: var(--ub-color-hover-tint);
}

.ub-header__menu-toggle-icon {
    width: 22px;
    height: 22px;
}

/* Mobile nav drawer */
.ub-mobile-nav {
    position: fixed;
    inset: 0;
    z-index: var(--ub-z-mobile-nav);
    background: var(--ub-color-section-bg);
    /* Reveal via clip-path, not an off-screen transform: a fixed element parked
       at translateX(100%) escapes every ancestor's overflow clip and widens the
       document on phones (horizontal scroll). clip-path keeps the drawer inside
       the viewport and just masks it, so the closed drawer adds no overflow. */
    clip-path: inset(0 0 0 100%);
    transition: clip-path var(--ub-transition-base), visibility var(--ub-transition-base);
    overflow-y: auto;
    padding: 24px;
    visibility: hidden;
}

.ub-mobile-nav.is-open {
    clip-path: inset(0);
    visibility: visible;
}

.ub-mobile-nav__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--ub-space-3xl);
}

.ub-mobile-nav__brand-name {
    font-size: var(--ub-text-base);
    font-weight: 600;
    line-height: 1.2;
    color: var(--ub-color-heading);
}

.ub-mobile-nav__close {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--ub-radius-pill);
    color: var(--ub-color-heading);
}

.ub-mobile-nav__list {
    display: flex;
    flex-direction: column;
    gap: var(--ub-space-l);
}

.ub-mobile-nav__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ub-space-l);
    padding: var(--ub-space-xl);
    font-size: var(--ub-text-lg);
    color: var(--ub-color-heading);
    cursor: pointer;
    list-style: none;
}

.ub-mobile-nav__item::-webkit-details-marker {
    display: none;
}

.ub-mobile-nav__details {
    border-bottom: 1px solid var(--ub-color-divider);
}

.ub-mobile-nav__item.is-current,
.ub-mobile-nav__details.is-current > .ub-mobile-nav__item {
    color: var(--ub-color-accent);
    background-color: var(--ub-color-hover-tint);
    border-radius: var(--ub-radius-xs);
    font-weight: 600;
}

.ub-mobile-nav__sub a[aria-current] {
    color: var(--ub-color-accent);
    font-weight: 600;
}

.ub-mobile-nav__caret {
    display: inline-flex;
    transition: transform var(--ub-transition-fast);
    color: var(--ub-color-body-muted);
}

.ub-mobile-nav__details[open] .ub-mobile-nav__caret {
    transform: rotate(180deg);
}

.ub-mobile-nav__sub {
    list-style: none;
    margin: 0 0 var(--ub-space-l);
    padding: 0 var(--ub-space-xl) 0 var(--ub-space-3xl);
    display: flex;
    flex-direction: column;
    gap: var(--ub-space-m);
}

.ub-mobile-nav__sub a {
    display: block;
    padding: var(--ub-space-s) 0;
    font-size: var(--ub-text-md);
    color: var(--ub-color-body);
}

.ub-mobile-nav__sub-all a {
    color: var(--ub-color-accent);
    font-weight: 600;
}

/* Desktop breakpoint — show nav, hide menu toggle */
@media (min-width: 1024px) {
    .ub-nav {
        display: flex;
    }

    body.ub-public a.ub-header__phone {
        display: inline-flex;
    }

    .ub-nav__item--contact {
        display: none;
    }

    .ub-header__menu-toggle {
        display: none;
    }
}

@media (min-width: 1024px) and (max-width: 1280px) {
    .ub-header__brand-name {
        display: none;
    }
}

@media (min-width: 1024px) and (max-width: 1279px) {
    .ub-nav__item--blog,
    .ub-nav__item--feedback {
        display: none;
    }

    .ub-header__menu-toggle {
        display: flex;
    }
}

@media (max-width: 1023px) {
    .ub-header__brand-name {
        display: none;
    }
}

/* ============================================================
   FOOTER — compact brand/contact column beside live navigation.
   ============================================================ */
.ub-footer {
    background-color: var(--ub-color-footer-bg);
    padding: 0;
}

.ub-footer__main {
    background-color: var(--ub-color-footer-bg);
    color: var(--ub-color-body);
    padding: clamp(var(--ub-space-4xl), 4vw, var(--ub-space-5xl))
             clamp(var(--ub-space-xl), 4vw, var(--ub-space-3xl));
}

.ub-footer__inner {
    max-width: var(--ub-container-wide);
    margin-inline: auto;
}

.ub-footer__intro {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--ub-space-5xl);
    align-items: start;
}

.ub-footer__brand-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--ub-space-l);
    text-align: center;
}

.ub-footer__brand {
    display: inline-flex;
    align-items: center;
    gap: var(--ub-space-l);
    color: var(--ub-color-accent);
}

.ub-footer__brand:hover,
.ub-footer__brand:focus-visible {
    color: var(--ub-color-accent-hover);
}

.ub-footer__logo {
    width: var(--ub-size-icon-chip-lg);
    height: var(--ub-size-icon-chip-lg);
    flex-shrink: 0;
}

.ub-footer__brand-name {
    color: currentColor;
    font-size: var(--ub-text-xl);
    font-weight: 600;
    line-height: var(--ub-leading-snug);
    letter-spacing: var(--ub-tracking-display);
}

.ub-footer__eyebrow {
    margin: var(--ub-space-s) 0 0;
    color: var(--ub-color-accent);
    font-size: var(--ub-text-xs);
    font-weight: 600;
    line-height: var(--ub-leading-snug);
    letter-spacing: var(--ub-tracking-eyebrow);
    text-transform: uppercase;
}

.ub-footer__contact {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--ub-space-xs);
}

.ub-footer__phone {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--ub-space-s);
    min-height: var(--ub-size-icon-chip-md);
    padding-inline: var(--ub-space-s);
    color: var(--ub-color-accent);
    font-size: var(--ub-text-lg);
    font-weight: 600;
    transition: color var(--ub-transition-fast);
}

.ub-footer__phone svg {
    flex-shrink: 0;
}

.ub-footer__phone:hover,
.ub-footer__phone:focus-visible {
    color: var(--ub-color-accent-hover);
}

.ub-footer__availability {
    margin: 0;
    color: var(--ub-color-body-muted);
    font-size: var(--ub-text-sm);
    line-height: var(--ub-leading-body);
    text-align: center;
}

.ub-footer__columns {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--ub-space-5xl);
    padding-top: var(--ub-space-3xl);
    border-top: 1px solid var(--ub-color-footer-divider);
}

@media (min-width: 768px) {
    .ub-footer__columns {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .ub-footer__intro {
        grid-template-columns: minmax(0, 1fr) minmax(0, 3fr);
        gap: var(--ub-space-5xl);
    }

    .ub-footer__columns {
        align-items: start;
        gap: var(--ub-space-3xl);
        padding-top: 0;
        border-top: 0;
    }

    .ub-footer__column {
        min-height: 100%;
        padding-left: var(--ub-space-3xl);
        border-left: 1px solid var(--ub-color-footer-divider);
    }
}

@media (min-width: 1024px) and (max-width: 1279px) {
    .ub-footer__brand {
        flex-direction: column;
        gap: var(--ub-space-s);
    }
}

.ub-footer__col-title {
    font-size: var(--ub-text-md);
    font-weight: 600;
    line-height: var(--ub-leading-snug);
    margin-bottom: var(--ub-space-xl);
    color: var(--ub-color-accent);
}

.ub-footer__col-title a {
    display: inline-flex;
    align-items: center;
    gap: var(--ub-space-s);
    color: var(--ub-color-accent);
}

.ub-footer__col-title a:hover,
.ub-footer__col-title a:focus-visible {
    color: var(--ub-color-accent-hover);
}

.ub-footer__col-title svg {
    transition: transform var(--ub-transition-fast);
}

.ub-footer__col-title a:hover svg,
.ub-footer__col-title a:focus-visible svg {
    transform: translateX(var(--ub-space-xs));
}

.ub-footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--ub-space-xs);
}

.ub-footer__list a {
    display: inline-flex;
    padding-block: var(--ub-space-xs);
    font-size: var(--ub-text-sm);
    font-weight: 400;
    color: var(--ub-color-body);
    line-height: 1.66;
    /* Доорх :hover нь ӨНГӨ солино (opacity биш). Энэ мөр opacity-г шилжүүлж
       байхад глобал `:where(... a)`-ийн өнгөний шилжилтийг specificity-ээр дарж,
       hover огцом солигддог байв. */
    transition: color var(--ub-transition-fast);
}

.ub-footer__list a:hover,
.ub-footer__list a:focus-visible {
    color: var(--ub-color-brand-text);
}

.ub-footer__socials {
    display: flex;
    gap: var(--ub-space-xs);
    align-items: center;
    justify-content: center;
}

.ub-footer__social {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--ub-size-icon-chip-md);
    height: var(--ub-size-icon-chip-md);
    border-radius: var(--ub-radius-pill);
    background-color: var(--ub-color-chrome-peach-soft);
    color: var(--ub-color-brand-text);
    transition: background-color var(--ub-transition-fast),
                transform var(--ub-transition-fast);
}

.ub-footer__social:hover,
.ub-footer__social:focus-visible {
    background-color: var(--ub-color-white);
    transform: translateY(calc(var(--ub-space-xs) * -1));
}

.ub-footer__social img {
    filter: brightness(0) saturate(100%) invert(29%) sepia(95%) saturate(1670%) hue-rotate(7deg) brightness(90%) contrast(91%);
    opacity: 0.82;
}

.ub-footer__bottom {
    background-color: var(--ub-color-chrome-peach-soft);
    border-top: 1px solid var(--ub-color-footer-divider);
    padding: var(--ub-space-2xl)
             clamp(var(--ub-space-xl), 4vw, var(--ub-space-3xl));
}

.ub-footer__bottom-inner {
    display: flex;
    flex-direction: column;
    gap: var(--ub-space-l);
    align-items: flex-start;
    justify-content: space-between;
    max-width: var(--ub-container-wide);
    margin-inline: auto;
    color: var(--ub-color-body);
}

.ub-footer__bottom-meta {
    display: flex;
    flex-direction: column;
    gap: var(--ub-space-s);
    align-items: flex-start;
}

@media (min-width: 768px) {
    .ub-footer__bottom-inner {
        flex-direction: row;
        align-items: center;
    }

    .ub-footer__bottom-meta {
        align-items: flex-end;
    }
}

/* Small legal copy keeps the full neutral ink colour; opacity would make the
   approved AA contrast dependent on whatever surface sits beneath it. */
.ub-footer__copyright {
    font-size: var(--ub-text-xs);
    font-weight: 400;
    line-height: 1.45;
}

.ub-footer__legal {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: var(--ub-space-s) var(--ub-space-xl);
}

.ub-footer__credit {
    margin: 0;
    color: var(--ub-color-body);
    font-size: var(--ub-text-xs);
    font-weight: 400;
    line-height: 1.45;
}

/* opacity БАЙХГҮЙ — .ub-footer__copyright-тай ижил AA шалтгаан. */
.ub-footer__legal a {
    font-family: var(--ub-font-body);
    font-size: var(--ub-text-xs);
    font-weight: 400;
    color: var(--ub-color-body);
}

.ub-footer__legal a:hover,
.ub-footer__legal a:focus-visible {
    color: var(--ub-color-brand-text);
}

@media (prefers-reduced-motion: reduce) {
    .ub-footer__social,
    .ub-footer__col-title svg {
        transition: none;
    }

    .ub-footer__social:hover,
    .ub-footer__social:focus-visible {
        transform: none;
    }
}