:root {
    --bg: #F8F9FA;
    --bg-strong: #eef2f5;
    --panel: rgba(255,255,255,0.82);
    --panel-strong: #ffffff;
    --card: #f2f4f6;
    --text: #2B323A;
    --muted: #5c6772;
    --line: rgba(43,50,58,0.12);
    --stone: #4A607A;
    --accent: #0066CC;
    --accent-2: #4A607A;
    --water: #0066CC;
    --deep: #1A1D20;
    --green: #4A607A;
    --shadow: 0 22px 56px rgba(26,29,32,0.12);
    --radius: 22px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background:
        linear-gradient(180deg, #f8f9fa 0%, #f1f3f5 100%);
    color: var(--text);
    line-height: 1.6;
}

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

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

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(10px);
    background: rgba(248, 249, 250, 0.85);
    border-bottom: 1px solid var(--line);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 80px;
    flex-shrink: 0;
}

.brand img,
.header-logo {
    display: block !important;
    height: 80px !important;
    width: auto !important;
    max-width: 180px !important;
    max-height: 80px !important;
    object-fit: contain;
    background: transparent;
}

.nav {
    display: flex;
    align-items: center;
    gap: 28px;
    font-size: 0.95rem;
    color: var(--muted);
}

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

.cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.95rem 1.5rem;
    background: linear-gradient(135deg, var(--accent), #0d5fb9);
    color: #fff;
    border-radius: 999px;
    font-weight: 700;
    box-shadow: 0 14px 26px rgba(0, 102, 204, 0.18);
    border: 1px solid rgba(255,255,255,0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 30px rgba(0, 102, 204, 0.22);
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(16, 20, 24, 0.58);
    backdrop-filter: blur(6px);
    z-index: 100;
}

.modal-backdrop.is-open {
    display: flex;
}

.modal {
    width: min(560px, 100%);
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--line);
    border-radius: 24px;
    box-shadow: 0 30px 80px rgba(18, 24, 30, 0.22);
    padding: 28px 28px 22px;
    color: var(--text);
}

.modal h3 {
    margin: 0 0 16px;
    font-size: clamp(1.2rem, 2vw, 1.7rem);
    line-height: 1.35;
    letter-spacing: -0.03em;
}

.modal a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    margin: 18px auto 0;
    padding: 0.8rem 1.3rem;
    border: 0;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent), #0d5fb9);
    color: #fff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.modal-close:hover {
    transform: translateY(-1px);
}

.hero {
    padding: 60px 0 36px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 36px;
    align-items: center;
}

.kicker {
    display: inline-block;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: rgba(74, 96, 122, 0.12);
    color: var(--accent-2);
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 800;
    margin-bottom: 18px;
}

h1 {
    font-size: clamp(2.6rem, 4vw, 4.7rem);
    line-height: 0.96;
    letter-spacing: -0.06em;
    margin: 0 0 18px;
    max-width: 680px;
}

h2 {
    font-size: clamp(2rem, 2.7vw, 3rem);
    line-height: 1.08;
    letter-spacing: -0.05em;
    margin: 0 0 18px;
}

.muted {
    color: var(--muted);
}

.lead {
    font-size: 1.1rem;
    max-width: 640px;
    color: var(--muted);
    margin: 0 0 28px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 30px;
}

.secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.95rem 1.5rem;
    border-radius: 999px;
    background: rgba(255,255,255,0.4);
    border: 1px solid var(--line);
    font-weight: 700;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    max-width: 620px;
    width: 100%;
}

.stat {
    padding: 18px 16px;
    background: rgba(255,255,255,0.36);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.4);
    min-width: 0;
    width: 100%;
}

.stat strong {
    display: block;
    font-size: 1.15rem;
    letter-spacing: -0.05em;
    margin-bottom: 4px;
}

.stat span {
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.4;
}

.hero-visual {
    position: relative;
    min-height: 520px;
    display: grid;
    place-items: center;
}

.visual-card {
    width: min(100%, 480px);
    background: linear-gradient(180deg, rgba(255,255,255,0.55), rgba(240,232,220,0.9));
    border: 1px solid var(--line);
    border-radius: 30px;
    box-shadow: var(--shadow);
    padding: 28px;
    position: relative;
    overflow: hidden;
}

.visual-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, rgba(141,108,77,0.10), transparent 40%),
        linear-gradient(0deg, rgba(255,255,255,0.25), transparent 40%);
    pointer-events: none;
}

.concrete-block {
    position: relative;
    min-height: 340px;
    border-radius: 26px;
    background:
        linear-gradient(180deg, rgba(18,33,44,0.25), rgba(14,25,34,0.72)),
        url('img/ges.jpeg') center/cover no-repeat;
    box-shadow: inset 0 3px 20px rgba(255,255,255,0.16), inset 0 -10px 20px rgba(0,0,0,0.12);
    padding: 26px;
    display: flex;
    align-items: flex-end;
    color: rgba(255,255,255,0.9);
}

.badge-box {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 999px;
    padding: 0.45rem 0.8rem;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    backdrop-filter: blur(4px);
}

.mini-facts {
    display: grid;
    grid-template-columns: repeat(2, minmax(120px, 1fr));
    gap: 12px;
    margin-top: 18px;
    position: relative;
    z-index: 1;
}

.mini-fact {
    padding: 14px 12px;
    background: rgba(255,255,255,0.52);
    border: 1px solid var(--line);
    border-radius: 16px;
}

.mini-fact strong {
    display: block;
    font-size: 1.15rem;
    letter-spacing: -0.05em;
    margin-bottom: 4px;
}

.section {
    padding: 50px 0;
}

.section-head {
    max-width: 860px;
    margin-bottom: 28px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.feature {
    background: rgba(255,255,255,0.42);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.45);
}

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(0,102,204,0.12), rgba(74,96,122,0.18));
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    margin-bottom: 18px;
}

.feature h3 {
    margin: 0 0 10px;
    font-size: 1.25rem;
    letter-spacing: -0.03em;
}

.feature p {
    margin: 0;
    color: var(--muted);
}

.problem-solution {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 18px;
}

.package-block {
    margin-top: 22px;
    display: grid;
    grid-template-columns: 1.5fr 0.6fr;
    gap: 26px;
    align-items: center;
}

.package-copy {
    display: grid;
    gap: 12px;
    color: var(--muted);
    line-height: 1.7;
}

.package-copy p {
    margin: 0;
}

.package-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.42);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: clamp(8px, 8%, 18px);
    min-width: 190px;
    min-height: 220px;
}

.package-image img {
    display: block;
    max-height: 300px;
    width: 60%;
    object-fit: contain;
    max-width: 100%;
}

.panel {
    background: rgba(255,255,255,0.45);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
}

.check-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 0;
    display: grid;
    gap: 12px;
}

.check-list li {
    position: relative;
    padding-left: 28px;
    color: var(--muted);
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--green);
    font-weight: 900;
}

.specs {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 24px;
    align-items: center;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255,255,255,0.42);
    border: 1px solid var(--line);
    border-radius: 20px;
    overflow: hidden;
}

th, td {
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
    text-align: left;
}

th {
    width: 42%;
    background: rgba(183,123,74,0.06);
    color: var(--text);
    font-weight: 700;
}

td {
    color: var(--muted);
}

.comparison {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.comparison-box {
    background: rgba(255,255,255,0.42);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
}

.comparison-box h3 {
    margin-top: 0;
    margin-bottom: 18px;
}

.faq {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 22px;
}

.faq-item {
    background: rgba(255,255,255,0.42);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 20px 22px;
}

.faq-item strong {
    display: block;
    margin-bottom: 8px;
    font-size: 1.03rem;
}

.cta-strip {
    margin: 20px 0 40px;
    background: linear-gradient(135deg, #393d41, #2B323A);
    color: rgba(255,255,255,0.95);
    border-radius: 30px;
    padding: 30px 28px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    box-shadow: var(--shadow);
}

.cta-strip h3 {
    margin: 0 0 8px;
    font-size: clamp(1.6rem, 2vw, 2.3rem);
    letter-spacing: -0.05em;
}

.cta-strip p {
    margin: 0;
    color: rgba(255,255,255,0.74);
}

.footer {
    position: relative;
    padding: 24px 0 50px;
    color: rgba(255,255,255,0.75);
    background: #1A1D20;
    border-top: 1px solid rgba(255,255,255,0.08);
    overflow: hidden;
}

.footer::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('img/beton.jpg') repeat-x;
    opacity: 0.45;
    pointer-events: none;
}

.footer .container {
    position: relative;
    z-index: 1;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin: 0 0 10px;
}

.footer-brand img {
    display: block;
    height: 32px;
    width: auto;
    margin: 0;
}

.footer-brand a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.footer-copy {
    margin: 0;
    line-height: 1.45;
    font-size: 0.96rem;
}

.footer-copy + .footer-copy {
    margin-top: 4px;
}

.footer-copy:last-child {
    margin-bottom: 0;
}

@media (max-width: 980px) {
    .hero-grid,
    .specs,
    .grid-3,
    .comparison,
    .problem-solution,
    .faq,
    .cta-strip {
        grid-template-columns: 1fr;
    }

    .cta-strip {
        display: block;
    }

    .nav {
        display: none;
    }
}

@media (max-width: 640px) {
    .hero {
        padding-top: 40px;
    }

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

    .topbar-inner {
        padding: 14px 0;
    }

    .brand {
        font-size: 0.82rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .cta,
    .secondary {
        width: 100%;
    }
    .package-block {
        grid-template-columns: 1fr;
    }
}