:root {
    --white: #ffffff;
    --white-2: #f7f7f8;
    --white-3: #eceef1;
    --anthracite: #23272f;
    --anthracite-2: #1a1d23;
    --anthracite-3: #31363f;
    --text: #1f2328;
    --text-soft: #6f7680;
    --border: rgba(35, 39, 47, 0.1);
    --shadow: 0 18px 60px rgba(20, 23, 29, 0.1);
    --shadow-strong: 0 32px 90px rgba(15, 18, 24, 0.18);
    --radius-sm: 18px;
    --radius-md: 28px;
    --radius-lg: 40px;
    --container: 1320px;
    --transition: 0.35s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    display: block;
    width: 100%;
    height: auto;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea {
    font: inherit;
}

button {
    background: none;
    border: none;
    cursor: pointer;
}

.container {
    width: min(100% - 36px, var(--container));
    margin-inline: auto;
}

.section {
    padding: 110px 0;
}

.section-heading {
    max-width: 760px;
    margin: 0 auto 44px;
    text-align: center;
}

.section-heading h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1.06;
    letter-spacing: -0.05em;
    margin-bottom: 16px;
}

.section-heading p {
    color: var(--text-soft);
    font-size: 1.04rem;
}

.section-center {
    margin-top: 34px;
    text-align: center;
}

.section-kicker {
    display: inline-block;
    margin-bottom: 16px;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: rgba(35, 39, 47, 0.72);
}

.section-kicker--light {
    color: rgba(255, 255, 255, 0.76);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 54px;
    padding: 0 24px;
    border-radius: 999px;
    font-weight: 700;
    transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn--white {
    background: var(--white);
    color: var(--anthracite);
    box-shadow: var(--shadow);
}

.btn--glass {
    color: var(--white);
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.18);
    backdrop-filter: blur(12px);
}

.btn--dark {
    background: var(--anthracite);
    color: var(--white);
}

.btn--dark-outline {
    background: transparent;
    color: var(--anthracite);
    border: 1px solid rgba(35,39,47,0.18);
}

/* HEADER */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 2000;
    padding: 18px 0;
    transition: background var(--transition), padding var(--transition), box-shadow var(--transition), border-color var(--transition);
    border-bottom: 1px solid transparent;
}

.topbar--light {
    background: rgba(15, 18, 23, 0.18);
    backdrop-filter: blur(10px);
}

.topbar--solid {
    background: rgba(255,255,255,0.88);
    backdrop-filter: blur(18px);
    border-color: rgba(35,39,47,0.08);
}

.topbar.scrolled {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(18px);
    padding: 12px 0;
    box-shadow: 0 10px 40px rgba(15, 18, 24, 0.08);
    border-color: rgba(35, 39, 47, 0.08);
}

.topbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    z-index: 10;
    position: relative;
}

.logo__mark {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--anthracite), var(--anthracite-3));
    color: var(--white);
    font-weight: 800;
    box-shadow: var(--shadow);
}

.logo__text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo__text strong {
    font-size: 1rem;
    letter-spacing: -0.03em;
}

.logo__text small {
    color: var(--text-soft);
    font-size: 0.78rem;
}

.topbar--light .logo__text strong,
.topbar--light .nav__list a {
    color: var(--white);
}

.topbar--light .logo__text small {
    color: rgba(255,255,255,0.68);
}

.topbar.scrolled .logo__text strong,
.topbar.scrolled .nav__list a {
    color: var(--text);
}

.topbar.scrolled .logo__text small {
    color: var(--text-soft);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav__list a {
    position: relative;
    font-weight: 600;
}

.nav__list a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 0;
    height: 2px;
    background: currentColor;
    transition: width var(--transition);
}

.nav__list a:hover::after,
.nav__list a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: var(--anthracite);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    box-shadow: var(--shadow);
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* HERO */
.hero-slider {
    position: relative;
    height: 100vh;
    min-height: 760px;
    overflow: hidden;
    background: var(--anthracite);
}

.hero-slider--clean {
    min-height: 820px;
}

.hero-slider__slides {
    height: 100%;
    position: relative;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    transform: scale(1.04);
    transition: opacity 1s ease, transform 6s ease, visibility 1s ease;
}

.hero-slide.is-active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.hero-slide__overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(10, 12, 15, 0.15) 0%, rgba(10, 12, 15, 0.5) 100%),
        linear-gradient(90deg, rgba(10, 12, 15, 0.45) 0%, rgba(10, 12, 15, 0.18) 50%, rgba(10, 12, 15, 0.35) 100%);
}

.hero-slide__content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    height: 100%;
}

.hero-slide__content--centered {
    justify-content: center;
    text-align: center;
}

.hero-copy {
    max-width: 900px;
    color: var(--white);
    padding-top: 60px;
}

.hero-copy span {
    display: inline-block;
    margin-bottom: 16px;
    font-size: 0.84rem;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    font-weight: 800;
    color: rgba(255,255,255,0.82);
}

.hero-copy h1 {
    font-size: clamp(3rem, 7vw, 6.1rem);
    line-height: 0.94;
    letter-spacing: -0.06em;
    margin-bottom: 18px;
}

.hero-copy p {
    max-width: 720px;
    margin: 0 auto;
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255,255,255,0.82);
}

.hero-copy__actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.hero-slider__dots {
    position: absolute;
    left: 50%;
    bottom: 34px;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.hero-slider__dot {
    width: 12px;
    height: 12px;
    border-radius: 999px;
    background: rgba(255,255,255,0.35);
    transition: transform var(--transition), background var(--transition), width var(--transition);
}

.hero-slider__dot.is-active {
    width: 34px;
    background: var(--white);
}

.hero-scroll {
    position: absolute;
    left: 50%;
    bottom: 76px;
    transform: translateX(-50%);
    z-index: 10;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.82);
    font-size: 0.86rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    font-weight: 700;
}

.hero-scroll i {
    width: 1px;
    height: 48px;
    background: rgba(255,255,255,0.65);
    position: relative;
    overflow: hidden;
}

.hero-scroll i::after {
    content: "";
    position: absolute;
    left: 0;
    top: -18px;
    width: 1px;
    height: 18px;
    background: var(--white);
    animation: scrollLine 1.8s ease infinite;
}

@keyframes scrollLine {
    0% { top: -18px; }
    100% { top: 48px; }
}

/* HOME OFFERS */
.offers-section {
    background: linear-gradient(180deg, #ffffff 0%, #f5f6f8 100%);
}

.offers-slider {
    position: relative;
    display: grid;
    grid-template-columns: 64px 1fr 64px;
    gap: 18px;
    align-items: center;
}

.offers-slider__viewport {
    overflow: hidden;
}

.offers-slider__track {
    display: flex;
    gap: 24px;
    transition: transform 0.5s ease;
}

.offer-card {
    min-width: calc(33.333% - 16px);
    background: var(--white);
    border-radius: 30px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.offer-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-strong);
}

.offer-card__image {
    display: block;
    position: relative;
    height: 350px;
    overflow: hidden;
}

.offer-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.offer-card:hover .offer-card__image img {
    transform: scale(1.06);
}

.offer-card__label {
    position: absolute;
    top: 18px;
    left: 18px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(35,39,47,0.88);
    color: var(--white);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.offer-card__content {
    padding: 24px;
}

.offer-card__content h3 {
    font-size: 1.36rem;
    line-height: 1.14;
    margin-bottom: 8px;
    letter-spacing: -0.03em;
}

.offer-card__content p {
    color: var(--text-soft);
    margin-bottom: 18px;
}

.offer-card__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.offer-card__bottom strong {
    font-size: 1.18rem;
    letter-spacing: -0.03em;
}

.offer-card__bottom a {
    font-weight: 700;
}

.slider-arrow {
    width: 64px;
    height: 64px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    background: var(--anthracite);
    color: var(--white);
    font-size: 2rem;
    box-shadow: var(--shadow);
    transition: transform var(--transition), background var(--transition);
}

.slider-arrow:hover {
    transform: scale(1.05);
    background: #111419;
}

/* ABOUT */
.about-layout {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 46px;
    align-items: center;
}

.about-copy h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1.05;
    letter-spacing: -0.05em;
    margin-bottom: 22px;
}

.about-copy p {
    color: var(--text-soft);
    margin-bottom: 16px;
    font-size: 1.03rem;
}

.about-points {
    display: grid;
    gap: 16px;
    margin-top: 32px;
}

.about-point {
    padding: 22px 24px;
    border-radius: 24px;
    background: linear-gradient(180deg, #ffffff 0%, #f7f8fa 100%);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.about-point strong {
    display: block;
    margin-bottom: 6px;
    font-size: 1.02rem;
}

.about-point span {
    color: var(--text-soft);
}

.about-gallery__grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    grid-template-rows: 250px 180px 180px;
    gap: 18px;
}

.about-gallery__item {
    overflow: hidden;
    border-radius: 28px;
    box-shadow: var(--shadow);
}

.about-gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.about-gallery__item:hover img {
    transform: scale(1.06);
}

.about-gallery__item--1 {
    grid-row: 1 / 3;
}

.about-gallery__item--2 {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
}

.about-gallery__item--3 {
    grid-column: 2 / 3;
    grid-row: 2 / 4;
}

.about-gallery__item--4 {
    grid-column: 1 / 2;
    grid-row: 3 / 4;
}

/* CONTACT */
.contact-section,
.offers-contact-band {
    background:
        radial-gradient(circle at top right, rgba(255,255,255,0.08), transparent 20%),
        linear-gradient(135deg, var(--anthracite), var(--anthracite-2));
}

.contact-box {
    border-radius: 42px;
    padding: 52px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(14px);
    box-shadow: var(--shadow-strong);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 34px;
    color: var(--white);
}

.contact-box__content {
    max-width: 620px;
}

.contact-box__content h2 {
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.06;
    letter-spacing: -0.05em;
    margin-bottom: 16px;
}

.contact-box__content p {
    color: rgba(255,255,255,0.72);
    font-size: 1.04rem;
}

.contact-box__actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    min-width: 340px;
}

.contact-action {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 20px 22px;
    border-radius: 24px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.contact-action:hover {
    transform: translateY(-4px);
    background: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.22);
}

.contact-action__icon {
    width: 58px;
    height: 58px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    background: rgba(255,255,255,0.12);
    font-size: 1.4rem;
    flex-shrink: 0;
}

.contact-action strong {
    display: block;
    margin-bottom: 4px;
    font-size: 1rem;
}

.contact-action small {
    display: block;
    font-size: 0.95rem;
    color: rgba(255,255,255,0.72);
}

/* OFERTY PAGE */
.offers-page {
    padding-top: 90px;
}

.offers-hero {
    padding: 58px 0 28px;
    background:
        linear-gradient(180deg, #f8f9fb 0%, #ffffff 100%);
}

.offers-hero__layout {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 24px;
    align-items: stretch;
}

.offers-hero__copy,
.offers-hero__panel {
    border-radius: 34px;
    background: var(--white);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 38px;
}

.offers-hero__copy h1 {
    font-size: clamp(2.2rem, 4vw, 4.2rem);
    line-height: 1.02;
    letter-spacing: -0.06em;
    margin-bottom: 16px;
}

.offers-hero__copy p {
    color: var(--text-soft);
    font-size: 1.04rem;
}

.offers-hero__panel {
    background:
        linear-gradient(135deg, var(--anthracite), #2f3540);
    color: var(--white);
    display: grid;
    gap: 18px;
}

.offers-hero__panel-item {
    padding: 22px;
    border-radius: 24px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
}

.offers-hero__panel-item strong {
    display: block;
    margin-bottom: 6px;
    font-size: 1.05rem;
}

.offers-hero__panel-item span {
    color: rgba(255,255,255,0.72);
}

.offers-list-section {
    padding-top: 36px;
}

.offers-masonry {
    display: grid;
    gap: 28px;
}

.listing-card {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 0;
    background: var(--white);
    border-radius: 36px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

.listing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-strong);
}

.listing-card--featured .listing-card__image {
    min-height: 520px;
}

.listing-card__image {
    position: relative;
    min-height: 420px;
    overflow: hidden;
}

.listing-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.9s ease;
}

.listing-card:hover .listing-card__image img {
    transform: scale(1.05);
}

.listing-card__label {
    position: absolute;
    top: 22px;
    left: 22px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(35,39,47,0.88);
    color: var(--white);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.listing-card__body {
    padding: 34px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 30px;
}

.listing-card__top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
}

.listing-card__type {
    display: inline-block;
    margin-bottom: 14px;
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 800;
    color: rgba(35,39,47,0.5);
}

.listing-card__top h2 {
    font-size: clamp(1.6rem, 2.4vw, 2.4rem);
    line-height: 1.06;
    letter-spacing: -0.04em;
    margin-bottom: 10px;
}

.listing-card__top p {
    color: var(--text-soft);
}

.listing-card__price {
    white-space: nowrap;
    font-size: 1.35rem;
    letter-spacing: -0.03em;
}

.listing-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.listing-card__meta span {
    padding: 12px 16px;
    border-radius: 999px;
    background: #f5f6f8;
    border: 1px solid rgba(35,39,47,0.08);
    font-weight: 600;
    color: var(--anthracite);
}

.listing-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* FOOTER */
.footer {
    background: #0f1217;
    color: rgba(255,255,255,0.78);
    padding: 30px 0;
}

.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.logo--footer .logo__text strong {
    color: var(--white);
}

.logo--footer .logo__text small {
    color: rgba(255,255,255,0.52);
}

.footer__links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.footer__links a {
    color: rgba(255,255,255,0.8);
}

.footer p {
    color: rgba(255,255,255,0.5);
    font-size: 0.94rem;
}

/* REVEAL */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* RESPONSIVE */
@media (max-width: 1200px) {
    .offer-card {
        min-width: calc(50% - 12px);
    }

    .about-layout,
    .offers-hero__layout,
    .listing-card {
        grid-template-columns: 1fr;
    }

    .contact-box {
        flex-direction: column;
        align-items: flex-start;
    }

    .contact-box__actions {
        width: 100%;
        min-width: 0;
    }

    .listing-card__image,
    .listing-card--featured .listing-card__image {
        min-height: 420px;
    }
}

@media (max-width: 992px) {
    .nav-toggle {
        display: inline-flex;
    }

    .nav {
        position: fixed;
        top: 86px;
        left: 16px;
        right: 16px;
        background: rgba(255,255,255,0.96);
        backdrop-filter: blur(18px);
        border-radius: 24px;
        padding: 22px;
        box-shadow: var(--shadow-strong);
        border: 1px solid rgba(35,39,47,0.08);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: var(--transition);
    }

    .nav.open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 18px;
    }

    .topbar--light .nav__list a {
        color: var(--text);
    }

    .hero-slider {
        min-height: 700px;
    }

    .offers-slider {
        grid-template-columns: 54px 1fr 54px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 82px 0;
    }

    .container {
        width: min(100% - 24px, var(--container));
    }

    .hero-slider {
        min-height: 620px;
        height: 100svh;
    }

    .hero-copy {
        padding-top: 50px;
    }

    .hero-copy h1 {
        font-size: clamp(2.5rem, 10vw, 4.2rem);
    }

    .hero-copy__actions {
        flex-direction: column;
        align-items: center;
    }

    .offer-card {
        min-width: 100%;
    }

    .offers-slider {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .slider-arrow {
        display: none;
    }

    .about-gallery__grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 220px 220px;
    }

    .about-gallery__item--1,
    .about-gallery__item--2,
    .about-gallery__item--3,
    .about-gallery__item--4 {
        grid-column: auto;
        grid-row: auto;
    }

    .contact-box,
    .offers-hero__copy,
    .offers-hero__panel,
    .listing-card__body {
        padding: 26px;
    }

    .listing-card__top {
        flex-direction: column;
    }

    .listing-card__price {
        font-size: 1.2rem;
    }
}

@media (max-width: 540px) {
    .logo__text {
        display: none;
    }

    .hero-slider__dots {
        bottom: 24px;
    }

    .hero-scroll {
        bottom: 54px;
    }

    .offer-card__image {
        height: 280px;
    }

    .about-gallery__grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(4, 220px);
    }

    .listing-card__image,
    .listing-card--featured .listing-card__image {
        min-height: 280px;
    }

    .contact-action {
        padding: 18px;
    }

    .contact-action__icon {
        width: 52px;
        height: 52px;
        border-radius: 16px;
    }

    .listing-card__actions .btn {
        width: 100%;
    }
}