:root {
    --color-white: #ffffff;
    --color-gold: #b08d57;
    --color-gold-dark: #967648;
    --color-dark: #1a1a1a;
    --color-gray: #666666;
    --color-gray-light: #f5f5f5;
    --color-border: #e0e0e0;
    --font-main: 'Montserrat', sans-serif;
    --container-max: 1200px;
    --header-height: 72px;
    --transition: 0.25s ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background: var(--color-white);
}

body.nav-open {
    overflow: hidden;
}

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

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

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

h1, h2, h3, p {
    margin: 0;
}

.container {
    width: min(100% - 2rem, var(--container-max));
    margin-inline: auto;
}

.text-gold {
    color: var(--color-gold);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.75rem;
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}

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

.btn-gold:hover,
.btn-gold:focus-visible {
    background: var(--color-gold-dark);
}

.btn:focus-visible,
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
}

.section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--color-gold);
    margin: 0.75rem auto 0;
}

.section-title--light {
    color: var(--color-white);
}

.section-title--light::after {
    background: var(--color-gold);
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-dark);
    color: var(--color-white);
    height: var(--header-height);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
}

.logo-icon {
    width: 36px;
    height: 36px;
    color: var(--color-gold);
}

.logo-text {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.main-nav ul {
    display: flex;
    gap: 1.75rem;
}

.main-nav a {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color var(--transition);
}

.main-nav a:hover {
    color: var(--color-gold);
}

.header-phone {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-gold);
    color: var(--color-white);
    padding: 0.55rem 1rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    transition: background var(--transition);
}

.header-phone svg {
    width: 16px;
    height: 16px;
}

.header-phone:hover {
    background: var(--color-gold-dark);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: transform var(--transition), opacity var(--transition);
}

/* Hero */
.hero {
    background: var(--color-white);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    min-height: 520px;
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 3rem clamp(1.5rem, 5vw, 4rem);
    background: var(--color-white);
    clip-path: polygon(0 0, 100% 0, 88% 100%, 0 100%);
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 800;
    line-height: 1.15;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: 1.25rem;
}

.hero-content h1 .text-gold {
    display: block;
    margin-top: 0.25rem;
}

.hero-sub {
    font-size: clamp(0.9rem, 1.5vw, 1.05rem);
    color: var(--color-gray);
    margin-bottom: 2rem;
    max-width: 420px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 500;
}

.hero-visual {
    position: relative;
    min-height: 400px;
}

.hero-main-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 400px;
}

.hero-thumb {
    position: absolute;
    width: 140px;
    height: 100px;
    object-fit: cover;
    border: 3px solid var(--color-white);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.hero-thumb--1 {
    bottom: 80px;
    right: 120px;
    transform: rotate(-6deg);
}

.hero-thumb--2 {
    bottom: 40px;
    right: 30px;
    transform: rotate(4deg);
}

.hero-bar {
    background: var(--color-dark);
    color: var(--color-white);
    padding: 1.25rem 0;
}

.hero-bar-inner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    text-align: center;
}

.hero-bar-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-bar-icon {
    width: 28px;
    height: 28px;
    border: 2px solid var(--color-gold);
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
}

.hero-bar-icon--clock::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    border: 2px solid var(--color-gold);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.hero-bar-icon--materials::before {
    content: '';
    position: absolute;
    inset: 6px;
    border: 2px solid var(--color-gold);
}

.hero-bar-icon--shield::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 50%;
    width: 14px;
    height: 16px;
    border: 2px solid var(--color-gold);
    border-radius: 0 0 8px 8px;
    transform: translateX(-50%);
}

/* Intro */
.intro {
    background: var(--color-gray-light);
}

.intro-inner {
    max-width: 800px;
}

.intro-inner p + p {
    margin-top: 1rem;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.service-card {
    padding: 2rem 1.5rem;
    text-align: center;
    border-right: 1px solid var(--color-border);
}

.service-card:last-child {
    border-right: none;
}

.service-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1.25rem;
    border: 2px solid var(--color-gold);
    position: relative;
}

.service-icon--steel::before,
.service-icon--steel::after {
    content: '';
    position: absolute;
    background: var(--color-gold);
}

.service-icon--steel::before {
    inset: 10px 14px;
    width: 2px;
}

.service-icon--steel::after {
    top: 14px;
    left: 10px;
    right: 10px;
    height: 2px;
}

.service-icon--garden::before {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-bottom: 20px solid var(--color-gold);
}

.service-icon--home::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 18px;
    border: 2px solid var(--color-gold);
    border-bottom: none;
}

.service-icon--home::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 14px;
    border: 2px solid var(--color-gold);
}

.service-icon--build::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 12px;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gold);
    transform: rotate(45deg);
}

.service-card h3 {
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.service-card p {
    font-size: 0.875rem;
    color: var(--color-gray);
    line-height: 1.5;
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.gallery-item {
    margin: 0;
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.03);
}

/* Feature cards */
.cards-grid {
    display: grid;
    gap: 1.5rem;
}

.cards-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.cards-grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

.feature-card,
.build-card {
    background: var(--color-gray-light);
    padding: 1.75rem;
    border-left: 3px solid var(--color-gold);
}

.feature-card h3,
.build-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.75rem;
    color: var(--color-gold-dark);
}

.feature-card p,
.build-card p {
    font-size: 0.9rem;
    color: var(--color-gray);
}

.feature-label {
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 0.75rem !important;
    color: var(--color-dark) !important;
}

.feature-card ul {
    margin-top: 0.5rem;
    padding-left: 1.25rem;
    list-style: disc;
}

.feature-card li {
    font-size: 0.875rem;
    color: var(--color-gray);
    margin-top: 0.25rem;
}

/* Process timeline */
.process-timeline {
    list-style: none;
    counter-reset: process;
    display: grid;
    gap: 0;
    position: relative;
    max-width: 800px;
    margin-inline: auto;
}

.process-step {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 1.5rem;
    padding-bottom: 2rem;
    position: relative;
}

.process-step:not(:last-child)::before {
    content: '';
    position: absolute;
    left: 29px;
    top: 60px;
    bottom: 0;
    width: 2px;
    background: var(--color-gold);
    opacity: 0.4;
}

.process-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-gold);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 800;
    flex-shrink: 0;
}

.process-body h3 {
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.5rem;
}

.process-body p {
    font-size: 0.9rem;
    color: var(--color-gray);
}

.process-body ul {
    margin-top: 0.5rem;
    padding-left: 1.25rem;
    list-style: disc;
}

.process-body li {
    font-size: 0.875rem;
    color: var(--color-gray);
}

/* Advantages */
.advantages {
    background: var(--color-gray-light);
}

.advantages-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem 2rem;
    max-width: 800px;
    margin-inline: auto;
}

.advantages-list li {
    position: relative;
    padding-left: 1.75rem;
    font-size: 0.9rem;
}

.advantages-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-gold);
    font-weight: 700;
}

/* About */
.about {
    text-align: center;
}

.about-inner {
    max-width: 720px;
}

.about-inner p {
    font-size: 1rem;
    color: var(--color-gray);
    margin-top: 1rem;
}

.about-inner p:first-of-type {
    margin-top: 0;
}

/* Contact */
.contact {
    background: var(--color-dark);
    color: var(--color-white);
    text-align: center;
}

.contact-inner {
    max-width: 560px;
}

.contact-brand {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    margin-bottom: 1rem;
}

.contact-phone {
    display: block;
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.contact-email {
    display: block;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
}

.contact-email:hover {
    color: var(--color-gold);
}

.contact .btn {
    margin-bottom: 1.5rem;
}

.contact-tagline {
    font-size: 0.9rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    opacity: 0.8;
}

/* Footer */
.site-footer {
    background: var(--color-dark);
    color: var(--color-white);
    position: relative;
    padding: 3rem 0 2.5rem;
}

.footer-diagonal {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent 30%, var(--color-gold) 30%, var(--color-gold) 70%, transparent 70%);
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 2rem;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    transition: color var(--transition);
}

.footer-link svg {
    width: 18px;
    height: 18px;
    color: var(--color-gold);
}

.footer-link:hover {
    color: var(--color-gold);
}

.footer-brand {
    text-align: center;
}

.logo--footer {
    justify-content: center;
    margin-bottom: 0.75rem;
}

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

.footer-tagline {
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.footer-tagline strong {
    color: var(--color-gold);
}

.footer-cta {
    display: flex;
    justify-content: flex-end;
}

/* Responsive */
@media (max-width: 1023px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-content {
        clip-path: none;
        padding: 2.5rem 1rem;
        text-align: center;
        align-items: center;
    }

    .hero-sub {
        max-width: none;
    }

    .hero-visual {
        min-height: 300px;
    }

    .hero-main-img {
        min-height: 300px;
    }

    .hero-thumb--1 {
        bottom: 60px;
        right: 80px;
        width: 110px;
        height: 80px;
    }

    .hero-thumb--2 {
        bottom: 20px;
        right: 20px;
        width: 100px;
        height: 72px;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .service-card {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }

    .service-card:nth-child(odd) {
        border-right: 1px solid var(--color-border);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cards-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .cards-grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-contact {
        align-items: center;
    }

    .footer-cta {
        justify-content: center;
    }
}

@media (max-width: 767px) {
    .nav-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        inset: var(--header-height) 0 0 0;
        background: var(--color-dark);
        padding: 2rem;
        transform: translateX(100%);
        transition: transform var(--transition);
    }

    .main-nav.is-open {
        transform: translateX(0);
    }

    .main-nav ul {
        flex-direction: column;
        gap: 1.5rem;
    }

    .main-nav a {
        font-size: 1rem;
    }

    .header-phone span,
    .header-phone {
        font-size: 0;
        padding: 0.55rem;
    }

    .header-phone svg {
        width: 20px;
        height: 20px;
    }

    .hero-bar-inner {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .hero-thumb {
        display: none;
    }

    .services-grid,
    .cards-grid--3,
    .cards-grid--4 {
        grid-template-columns: 1fr;
    }

    .service-card,
    .service-card:nth-child(odd) {
        border-right: none;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .advantages-list {
        grid-template-columns: 1fr;
    }

    .process-step {
        grid-template-columns: 48px 1fr;
        gap: 1rem;
    }

    .process-number {
        width: 48px;
        height: 48px;
        font-size: 1rem;
    }

    .process-step:not(:last-child)::before {
        left: 23px;
        top: 48px;
    }
}