html {
    scrollbar-gutter: stable;
}

body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    padding: 0;
}

body.portfolio-lightbox-open {
    overflow: hidden;
}

.navbar {
    /* Scrolls with the page (not fixed/sticky). */
    position: relative !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    z-index: 1030;
}

/* Home page: overlay navbar on top of hero while still scrolling with the page */
.navbar.navbar-overlay {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    background: transparent !important;
    isolation: isolate;
}

/* Home: fade hero image into white behind the navbar area (Wix-like) */
.navbar.navbar-overlay::before {
    content: none;
}

/* Единый отступ навбара на всех страницах */
.navbar.navbar-fixed-padding {
    padding-top: 0.5rem !important;
    padding-bottom: 0.75rem !important;
}

/* Home: give the overlay navbar a bit more breathing room from the top edge */
.navbar.navbar-overlay.navbar-fixed-padding {
    padding-top: 1.75rem !important;
    padding-bottom: 1.1rem !important;
}

/* Home: white nav links over hero image */
.navbar.navbar-overlay .nav-link {
    color: rgba(255, 255, 255, 0.92) !important;
}

.navbar.navbar-overlay .nav-link:hover,
.navbar.navbar-overlay .nav-link:focus {
    color: #fff !important;
}

/* Отступ для контента под фиксированным навбаром (кроме главной) */
main.main-with-nav-offset {
    padding-top: 0;
}


.hero {
    position: relative;
    background-size: cover;
    background-position: center;
}

.hero h1 {
    font-weight: 300;
    letter-spacing: 5px;
    line-height: 1.2;
    text-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

.navbar-brand {
    font-weight: 800;
    letter-spacing: 2px;
}

/* Logo */
.navbar-logo-wrap {
    display: inline-flex;
    align-items: center;
}

.navbar-logo {
    height: 130px;
    width: auto;
    max-width: 420px;
    object-fit: contain;
}

/* На hero: белое свечение (не серое) */
.navbar-dark .navbar-logo {
    /* Keep logo itself crisp; any separation should come from backdrop, not bitmap filters. */
    filter: none;
}

.navbar-dark .navbar-logo-wrap {
    background: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
}

/* Home: navbar text should be dark on the white fade */
.navbar.navbar-home-light .nav-link {
    color: rgba(48, 49, 49, 0.85) !important;
}

.navbar.navbar-home-light .nav-link:hover,
.navbar.navbar-home-light .nav-link:focus {
    color: rgba(48, 49, 49, 1) !important;
}

.navbar.navbar-home-light .navbar-toggler {
    border-color: rgba(48, 49, 49, 0.25);
}

.navbar.navbar-home-light .navbar-toggler-icon {
    filter: none;
}

/* На белом фоне: без свечения — резкость сохраняется */
.navbar-light .navbar-logo {
    filter: none;
}

.nav-link {
    text-transform: uppercase;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
    padding-left: 1.5rem !important;
    padding-right: 1.5rem !important;
}

.btn-outline-light {
    border-width: 1px;
    letter-spacing: 2px;
    font-size: 0.9rem;
}

.btn-outline-light:hover {
    background-color: #fff;
    color: #000;
}

h2 {
    letter-spacing: 3px;
    font-weight: 700;
}

/* Card Hover Effect */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .15) !important;
}

.card-title {
    letter-spacing: 1px;
}

footer a {
    text-decoration: none;
    font-weight: 500;
}

/* Scroll Arrow Animation */
.scroll-arrow {
    animation: bounce 2s infinite;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.scroll-arrow:hover {
    opacity: 1;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-10px);
    }

    60% {
        transform: translateY(-5px);
    }
}

/* Client Logos */
.client-logo {
    width: 90px;
    height: 50px;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all 0.3s ease;
    cursor: pointer;
    background-color: transparent;
    /* mix-blend-mode helps with white backgrounds if the section is not white, 
       but here section is bg-light which is close to white. */
}

.client-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.1);
}

/* Портфолио — коллаж/justified как на Wix (плотная плитка, без Masonry) */
.portfolio-section {
    width: 100%;
    padding: 0;
    /* Keep a small breathing room above the footer border */
    padding-bottom: 18px;
}

.portfolio-inner {
    /* Use Bootstrap .container sizing (same width as "О студии"). */
}

.portfolio-inner.portfolio-inner-wide {
    /* Wix-like: wider gallery area with small side margins on large screens */
    max-width: calc(100vw - 24px);
    margin: 0 auto;
    padding: 0;
}

/* Make the site more "rubber" on large monitors (Bootstrap containers are too narrow at 2K/4K). */
@media (min-width: 1400px) {
    .container {
        max-width: calc(100vw - 64px);
    }
}

.portfolio-mosaic {
    --portfolio-gap: 6px;
    /* Fallback without JS: simple responsive grid. JS switches to collage rows. */
    display: flex;
    flex-wrap: wrap;
    gap: var(--portfolio-gap);
    padding: 0;
    background: transparent;
    line-height: 0;
}

.portfolio-mosaic.is-collage {
    display: block;
}

.portfolio-row {
    display: flex;
    gap: var(--portfolio-gap);
    margin-bottom: var(--portfolio-gap);
}

.portfolio-row:last-child {
    margin-bottom: 0;
}

@media (max-width: 575px) {
    .portfolio-mosaic {
        --portfolio-gap: 4px;
    }
}

.portfolio-mosaic .portfolio-item {
    flex: 1 1 280px; /* фоллбек: обычная сетка; JS потом выставит точные размеры */
    overflow: hidden;
    background: #fff;
}

.portfolio-mosaic .portfolio-item .card-body,
.portfolio-mosaic .portfolio-item .card-title,
.portfolio-mosaic .portfolio-item .card-text {
    display: none !important;
}

.portfolio-mosaic .portfolio-link {
    display: block;
    overflow: hidden;
    width: 100%;
}

.portfolio-mosaic .portfolio-img {
    width: 100%;
    height: auto; /* until JS turns on collage sizing */
    display: block;
    vertical-align: bottom;
    transition: transform 180ms ease;
    transform-origin: center;
}

.portfolio-mosaic .portfolio-link:hover .portfolio-img {
    transform: scale(1.03);
}

.portfolio-mosaic.is-collage .portfolio-link {
    height: 100%;
}

.portfolio-mosaic.is-collage .portfolio-img {
    height: 100%;
    object-fit: cover;
}

/* Portfolio lightbox (Wix-like viewer) */
.portfolio-lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    background: #fff;
}

.portfolio-lightbox.is-open {
    display: block;
}

.portfolio-lightbox__stage {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 420px;
    align-items: center;
    gap: 0;
    padding: 24px 36px;
    z-index: 1;
}

@media (max-width: 991px) {
    .portfolio-lightbox__stage {
        grid-template-columns: 1fr;
        padding: 18px 18px 28px;
    }
}

.portfolio-lightbox__media {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
}

.portfolio-lightbox__img {
    /* Allow scaling up on large screens; quality depends on source resolution. */
    width: 100%;
    height: auto;
    max-width: 100%;
    max-height: calc(100vh - 48px);
    object-fit: contain;
    user-select: none;
    -webkit-user-drag: none;
}

.portfolio-lightbox__meta {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    padding-left: 36px;
}

@media (max-width: 991px) {
    .portfolio-lightbox__meta {
        display: none;
    }
}

.portfolio-lightbox__filename {
    font-family: "Cinzel", serif;
    font-size: 58px;
    letter-spacing: 1px;
    color: #303131;
    line-height: 1.05;
}

.portfolio-lightbox__btn,
.portfolio-lightbox__nav {
    position: absolute;
    z-index: 3;
    border: 0;
    padding: 0;
    background: transparent;
    width: 44px;
    height: 44px;
    cursor: pointer;
    color: #303131;
    opacity: 0.8;
    transition: opacity 120ms ease;
}

.portfolio-lightbox__btn:hover,
.portfolio-lightbox__nav:hover {
    opacity: 1;
}

.portfolio-lightbox__btn--close {
    top: 22px;
    right: 26px;
}

.portfolio-lightbox__btn--close::before,
.portfolio-lightbox__btn--close::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 26px;
    height: 2px;
    background: currentColor;
    transform-origin: center;
}

.portfolio-lightbox__btn--close::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.portfolio-lightbox__btn--close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.portfolio-lightbox__btn--fullscreen {
    top: 22px;
    left: 26px;
}

/* "expand/contract" icon */
.portfolio-lightbox__btn--fullscreen::before,
.portfolio-lightbox__btn--fullscreen::after {
    content: "";
    position: absolute;
    inset: 12px;
    border: 2px solid currentColor;
    border-radius: 2px;
    opacity: 0.0;
}

.portfolio-lightbox__btn--fullscreen::before {
    opacity: 1;
    clip-path: polygon(0 0, 60% 0, 60% 12%, 12% 12%, 12% 60%, 0 60%);
}

.portfolio-lightbox__btn--fullscreen::after {
    opacity: 1;
    clip-path: polygon(40% 88%, 88% 88%, 88% 40%, 100% 40%, 100% 100%, 40% 100%);
}

.portfolio-lightbox.is-fullscreen .portfolio-lightbox__btn--fullscreen::before {
    clip-path: polygon(40% 0, 100% 0, 100% 60%, 88% 60%, 88% 12%, 40% 12%);
}

.portfolio-lightbox.is-fullscreen .portfolio-lightbox__btn--fullscreen::after {
    clip-path: polygon(0 40%, 12% 40%, 12% 88%, 60% 88%, 60% 100%, 0 100%);
}

.portfolio-lightbox.is-fullscreen .portfolio-lightbox__stage {
    grid-template-columns: 1fr;
    padding: 0;
}

.portfolio-lightbox.is-fullscreen .portfolio-lightbox__meta {
    display: none;
}

.portfolio-lightbox.is-fullscreen .portfolio-lightbox__media {
    height: 100vh;
}

.portfolio-lightbox.is-fullscreen .portfolio-lightbox__img {
    height: 100vh;
    max-height: 100vh;
    width: 100vw;
    max-width: 100vw;
    object-fit: contain;
}

.portfolio-lightbox__nav {
    top: 50%;
    transform: translateY(-50%);
}

.portfolio-lightbox__nav--prev {
    left: 20px;
}

.portfolio-lightbox__nav--next {
    right: 20px;
}

.portfolio-lightbox__nav::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 12px;
    height: 12px;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform-origin: center;
}

.portfolio-lightbox__nav--prev::before {
    transform: translate(-50%, -50%) rotate(-135deg);
}

.portfolio-lightbox__nav--next::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.portfolio-lightbox__hint {
    position: absolute;
    z-index: 4;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.78);
    color: #fff;
    font-size: 14px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 160ms ease;
}

.portfolio-lightbox__hint.is-visible {
    opacity: 1;
}