:root {
    --bg: #f7f5f2;
    --surface: #ffffff;
    --surface-soft: #f4efe9;
    --text: #171717;
    --muted: #68615b;
    --muted-2: #8a8178;
    --line: #e8e0d8;
    --accent: #b08a63;
    --accent-dark: #8c6b4e;
    --accent-soft: #efe5d8;
    --footer: #171717;
    --shadow: 0 18px 50px rgba(43, 34, 27, .08);
    --shadow-soft: 0 10px 28px rgba(43, 34, 27, .06);
    --radius: 18px;
    --radius-lg: 28px;
    --container: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "Manrope", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background: #fff;
    line-height: 1.55;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
.section { padding: 74px 0; }
.section-sm { padding: 48px 0; }
.section-title { font-size: clamp(30px, 3vw, 44px); line-height: 1.1; letter-spacing: -.04em; margin: 0 0 16px; }
.section-lead { color: var(--muted); font-size: 17px; max-width: 720px; margin: 0 0 32px; }
.muted { color: var(--muted); }

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,.86);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(232,224,216,.8);
}
.header-inner {
    min-height: 76px;
    display: flex;
    align-items: center;
    gap: 28px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; }
.brand-logo { width: 38px; height: 38px; object-fit: contain; }
.main-nav { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.main-nav a { font-size: 14px; font-weight: 700; color: #292521; position: relative; padding: 28px 0; }
.main-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 20px; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: .25s; }
.main-nav a:hover, .main-nav a.is-active { color: var(--accent-dark); }
.main-nav a:hover::after, .main-nav a.is-active::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 16px; margin-left: 8px; }
.header-phone { font-weight: 800; font-size: 16px; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.header-phone i { color: var(--accent); }
.burger { display: none; width: 44px; height: 44px; border: 1px solid var(--line); background: #fff; border-radius: 12px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.burger span { width: 20px; height: 2px; background: #161616; border-radius: 10px; transition: .25s; }
.burger.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-active span:nth-child(2) { opacity: 0; }
.burger.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 50px;
    padding: 0 28px;
    border-radius: 9px;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #fff;
    font-weight: 800;
    cursor: pointer;
    transition: transform .2s, box-shadow .2s, background .2s, color .2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(176,138,99,.25); background: var(--accent-dark); }
.btn-outline { background: rgba(255,255,255,.66); color: var(--accent-dark); }
.btn-outline:hover { color: #fff; }
.btn-small { min-height: 42px; padding: 0 20px; font-size: 14px; }
.btn-dark { background: var(--footer); border-color: var(--footer); }

.hero {
    position: relative;
    min-height: 520px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--bg);
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, #fff 0%, rgba(255,255,255,.95) 28%, rgba(255,255,255,.34) 56%, rgba(255,255,255,.02) 100%), var(--hero-image) center right / cover no-repeat;
}
.hero-content { position: relative; z-index: 1; max-width: 640px; padding: 90px 0 130px; }
.hero h1 { font-size: clamp(42px, 5.2vw, 78px); line-height: .98; letter-spacing: -.055em; margin: 0 0 24px; }
.hero p { font-size: clamp(17px, 1.4vw, 20px); color: #47413c; max-width: 560px; margin: 0 0 34px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-card-strip {
    position: relative;
    z-index: 4;
    margin-top: -62px;
}
.trust-strip {
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(18px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    overflow: hidden;
}
.trust-item { display: flex; gap: 18px; align-items: flex-start; padding: 26px 30px; border-right: 1px solid var(--line); }
.trust-item:last-child { border-right: 0; }
.trust-icon, .icon-box {
    width: 52px; height: 52px; border-radius: 50%; flex: 0 0 52px;
    display: grid; place-items: center; color: var(--accent); background: var(--surface-soft); font-size: 27px;
}
.trust-item b { display: block; font-size: 15px; margin-bottom: 4px; }
.trust-item span { color: var(--muted); font-size: 13px; }

.cards-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 26px; }
.cards-grid.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-soft); transition: transform .25s, box-shadow .25s, border .25s; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(176,138,99,.35); }
.card-img { width: 100%; height: 185px; object-fit: cover; }
.card-body { padding: 22px; }
.card h3 { margin: 0 0 10px; font-size: 20px; line-height: 1.2; letter-spacing: -.025em; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card-link { display: inline-flex; margin-top: 16px; color: var(--accent-dark); font-weight: 800; }

.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.advantage-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; display: flex; gap: 16px; align-items: flex-start; background: #fff; box-shadow: var(--shadow-soft); }
.advantage-card h3 { margin: 0 0 8px; font-size: 18px; }
.advantage-card p { margin: 0; color: var(--muted); font-size: 14px; }

.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.project-card .card-img { height: 250px; }
.project-meta { display: flex; flex-wrap: wrap; gap: 14px; color: var(--muted); font-size: 13px; margin-top: 14px; }
.project-meta span { display: inline-flex; align-items: center; gap: 5px; }
.filters { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.filter-chip { border: 1px solid var(--line); background: #fff; border-radius: 9px; padding: 12px 26px; font-weight: 800; color: #39312a; cursor: pointer; transition: .2s; }
.filter-chip:hover, .filter-chip.is-active { background: var(--accent); color: #fff; border-color: var(--accent); }
.featured-case { margin-top: 34px; display: grid; grid-template-columns: 1.1fr 1fr; gap: 0; align-items: stretch; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-soft); }
.featured-case img { width: 100%; height: 100%; min-height: 370px; object-fit: cover; }
.featured-content { padding: 42px; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-dark); font-weight: 900; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }

.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.review-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-soft); }
.quote { color: var(--accent); font-size: 36px; line-height: 1; }
.review-author { display: flex; align-items: center; gap: 14px; margin-top: 22px; }
.avatar { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, #e7d9ca, #c5a98a); display: grid; place-items: center; color: #fff; font-weight: 800; }
.stars { color: var(--accent); letter-spacing: 2px; margin-top: 8px; }

.blog-layout { display: grid; grid-template-columns: 300px 1fr; gap: 44px; align-items: start; }
.sidebar-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-soft); padding: 26px; margin-bottom: 26px; }
.category-list { list-style: none; margin: 0; padding: 0; }
.category-list li { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.category-list li:last-child { border-bottom: 0; }
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.article-card .card-img { height: 170px; }
.article-category { color: var(--accent-dark); font-weight: 800; font-size: 12px; margin-bottom: 10px; }
.article-card h3 { font-size: 19px; }
.article-content { max-width: 860px; margin-inline: auto; }
.article-content h1 { font-size: clamp(36px,4vw,58px); letter-spacing: -.05em; line-height: 1.05; margin: 0 0 18px; }
.article-content .article-hero { border-radius: var(--radius-lg); margin: 34px 0; width: 100%; max-height: 490px; object-fit: cover; }
.article-text { font-size: 18px; color: #39312a; }
.article-text p { margin-bottom: 20px; }

.inner-hero { position: relative; overflow: hidden; background: #fff; min-height: 340px; display: flex; align-items: center; }
.inner-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, #fff 0%, rgba(255,255,255,.94) 30%, rgba(255,255,255,.18) 78%, rgba(255,255,255,0) 100%), url('../images/hero-inner.jpg') center right/cover no-repeat; }
.inner-hero .container { position: relative; z-index: 1; }
.breadcrumbs { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.inner-hero h1 { font-size: clamp(42px,5vw,68px); letter-spacing: -.055em; line-height: 1.05; margin: 0 0 20px; }
.inner-hero p { color: var(--muted); font-size: 20px; max-width: 620px; margin: 0; }

.service-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; box-shadow: var(--shadow-soft); }
.service-feature img { height: 100%; min-height: 430px; object-fit: cover; }
.service-feature-content { padding: 46px; }
.feature-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; margin: 28px 0; }
.feature-list div { display: flex; gap: 12px; color: var(--muted); font-weight: 700; font-size: 14px; }
.feature-list i { color: var(--accent); font-size: 24px; }
.steps-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 18px; }
.step-card { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; text-align: center; box-shadow: var(--shadow-soft); }
.step-card .num { color: var(--accent); font-weight: 900; margin-bottom: 8px; }
.step-card i { font-size: 34px; color: var(--accent); }
.check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.check-list li { display: flex; align-items: flex-start; gap: 10px; color: #36302b; }
.check-list i { color: var(--accent); font-size: 21px; margin-top: 1px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-soft); padding: 32px; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; margin-bottom: 10px; overflow: hidden; }
.faq-question { width: 100%; border: 0; background: #fff; display: flex; justify-content: space-between; align-items: center; padding: 18px; font-weight: 800; cursor: pointer; text-align: left; }
.faq-answer { display: none; padding: 0 18px 18px; color: var(--muted); }
.faq-item.is-open .faq-answer { display: block; }

.cta-block { background: linear-gradient(135deg, #f4efe9, #fff); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 44px; display: grid; grid-template-columns: .9fr 1.2fr .7fr; gap: 34px; align-items: center; box-shadow: var(--shadow-soft); overflow: hidden; }
.form-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.form-grid .wide { grid-column: 1/-1; }
.input, .textarea, .select { width: 100%; border: 1px solid var(--line); background: rgba(255,255,255,.86); border-radius: 10px; padding: 15px 16px; outline: none; transition: .2s; }
.textarea { min-height: 112px; resize: vertical; }
.input:focus, .textarea:focus, .select:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(176,138,99,.12); }
.form-note { display: flex; align-items: center; gap: 8px; color: var(--muted-2); font-size: 12px; margin-top: 10px; }
.cta-image { align-self: end; justify-self: center; }
.cta-image img { border-radius: 18px; max-height: 200px; object-fit: cover; }
.contact-list { display: grid; gap: 14px; }
.contact-list a, .contact-list span { display: flex; gap: 12px; align-items: center; color: #333; font-weight: 700; }
.contact-list i { color: var(--accent); font-size: 22px; }

.calculator-shell { display: grid; grid-template-columns: 340px 1fr; gap: 34px; align-items: start; }
.calc-progress { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-soft); position: sticky; top: 100px; }
.calc-progress-item { display: flex; gap: 12px; align-items: center; padding: 13px 0; color: var(--muted); }
.calc-progress-item span { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--surface-soft); font-weight: 900; color: var(--accent-dark); }
.calc-progress-item.is-active { color: #181818; font-weight: 800; }
.calc-progress-item.is-active span { background: var(--accent); color: #fff; }
.calculator-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 36px; }
.calc-step { display: none; }
.calc-step.is-active { display: block; animation: fadeUp .3s ease; }
@keyframes fadeUp { from {opacity: 0; transform: translateY(10px);} to {opacity: 1; transform: translateY(0);} }
.option-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; margin-top: 26px; }
.option-card { border: 1px solid var(--line); border-radius: 16px; padding: 20px; cursor: pointer; transition: .2s; background: #fff; display: flex; gap: 14px; align-items: flex-start; }
.option-card:hover, .option-card.is-selected { border-color: var(--accent); background: #fffbf6; box-shadow: 0 12px 30px rgba(176,138,99,.1); }
.option-card input { margin-top: 5px; accent-color: var(--accent); }
.option-card b { display: block; margin-bottom: 5px; }
.option-card small { color: var(--muted); }
.calc-controls { display: flex; justify-content: space-between; gap: 14px; margin-top: 30px; }
.calc-result { background: var(--surface-soft); border-radius: 16px; padding: 24px; margin-top: 22px; }
.calc-result strong { display: block; font-size: 30px; letter-spacing: -.03em; margin-top: 8px; }
.success-message { display: none; padding: 20px; border-radius: 16px; background: #edf8f1; color: #24663c; margin-top: 18px; font-weight: 700; }
.error-message { display:none; padding: 20px; border-radius: 16px; background: #fff1f0; color: #9b2d23; margin-top: 18px; font-weight: 700; }

.site-footer { background: var(--footer); color: #fff; padding: 50px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.1fr 2fr .9fr; gap: 42px; align-items: start; }
.brand-footer img { filter: brightness(1.2); }
.footer-brand p { color: rgba(255,255,255,.62); margin: 14px 0 0; max-width: 310px; }
.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; justify-content: center; padding-top: 10px; }
.footer-nav a { color: rgba(255,255,255,.78); font-weight: 700; font-size: 14px; }
.footer-nav a:hover { color: #fff; }
.footer-contacts { display: grid; gap: 12px; }
.footer-contacts a, .footer-contacts span { display: flex; gap: 10px; align-items: center; color: rgba(255,255,255,.82); font-weight: 700; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 32px; padding-top: 24px; display: flex; justify-content: space-between; gap: 20px; color: rgba(255,255,255,.55); font-size: 13px; }
.to-top { position: fixed; right: 24px; bottom: 24px; width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--line); background: #fff; color: var(--accent); display: none; place-items: center; box-shadow: var(--shadow); cursor: pointer; z-index: 80; }
.to-top.is-visible { display: grid; }

@media (max-width: 1180px) {
    .header-actions .header-phone { display: none; }
    .main-nav { gap: 15px; }
    .cards-grid, .advantages-grid { grid-template-columns: repeat(2,1fr); }
    .article-grid { grid-template-columns: repeat(2,1fr); }
    .portfolio-grid { grid-template-columns: repeat(2,1fr); }
    .steps-grid { grid-template-columns: repeat(3,1fr); }
}
@media (max-width: 980px) {
    .container { width: min(100% - 30px, var(--container)); }
    .burger { display: inline-flex; margin-left: auto; }
    .main-nav { position: fixed; top: 76px; left: 15px; right: 15px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 18px; padding: 18px; flex-direction: column; align-items: stretch; transform: translateY(-12px); opacity: 0; pointer-events: none; transition: .25s; }
    .main-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .main-nav a { padding: 12px 8px; }
    .main-nav a::after { display:none; }
    .header-actions { margin-left: 0; }
    .header-actions .btn { display: none; }
    .hero::before { background: linear-gradient(90deg, #fff 0%, rgba(255,255,255,.92) 55%, rgba(255,255,255,.4) 100%), var(--hero-image) center/cover no-repeat; }
    .hero { min-height: 570px; }
    .hero-content { padding: 80px 0 130px; }
    .trust-strip { grid-template-columns: repeat(2,1fr); }
    .trust-item:nth-child(2) { border-right: 0; }
    .trust-item { border-bottom: 1px solid var(--line); }
    .service-feature, .featured-case, .two-col, .blog-layout, .calculator-shell, .cta-block { grid-template-columns: 1fr; }
    .calc-progress { position: static; }
    .cta-image { display: none; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-nav { justify-content: flex-start; }
}
@media (max-width: 700px) {
    .section { padding: 54px 0; }
    .hero h1 { font-size: 42px; }
    .inner-hero h1 { font-size: 40px; }
    .trust-strip, .cards-grid, .cards-grid.three, .advantages-grid, .portfolio-grid, .reviews-grid, .article-grid, .steps-grid, .option-grid, .form-grid { grid-template-columns: 1fr; }
    .trust-item { border-right: 0; }
    .service-feature-content, .featured-content, .calculator-card, .panel, .cta-block { padding: 24px; }
    .feature-list { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
    .hero-actions, .calc-controls { flex-direction: column; }
    .btn { width: 100%; }
    .brand span { font-size: 15px; }
}