/* ============================================
   КУБАНЬСТРОЙ — Construction Company
   Palette: Orange / Graphite / Concrete / White
   ============================================ */

:root {
    --orange: #F97316;
    --orange-dark: #EA580C;
    --orange-light: #FB923C;
    --graphite: #1C1917;
    --graphite-light: #292524;
    --concrete: #44403C;
    --concrete-light: #78716C;
    --steel: #E7E5E4;
    --steel-light: #F5F5F4;
    --steel-extra-light: #FAFAF9;
    --amber: #FCD34D;
    --green: #22C55E;
    --ink: #0C0A09;
    --white: #FFFFFF;
    --border: #D6D3D1;

    --shadow-sm: 0 1px 3px rgba(28, 25, 23, 0.1);
    --shadow-md: 0 8px 24px rgba(28, 25, 23, 0.12);
    --shadow-lg: 0 24px 48px rgba(28, 25, 23, 0.18);
    --shadow-orange: 0 12px 32px rgba(249, 115, 22, 0.3);

    --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --radius: 4px;
    --radius-lg: 10px;

    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-display: 'Oswald', Impact, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    color: var(--graphite);
    background: var(--white);
    line-height: 1.6;
    font-weight: 400;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }

.text-accent { color: var(--orange); }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 32px;
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--radius);
    letter-spacing: 0.2px;
}
.btn-primary {
    background: var(--orange);
    color: var(--white);
    box-shadow: var(--shadow-orange);
}
.btn-primary:hover {
    background: var(--orange-dark);
    transform: translateY(-2px);
    box-shadow: 0 16px 40px rgba(249, 115, 22, 0.4);
}
.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline:hover {
    background: var(--white);
    color: var(--graphite);
    border-color: var(--white);
}
.btn-nav { padding: 11px 22px; font-size: 14px; }
.btn-block { width: 100%; }

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 18px 0;
    background: rgba(28, 25, 23, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 2px solid var(--orange);
    transition: var(--transition);
}
.navbar.scrolled {
    padding: 12px 0;
}
.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.logo-icon { font-size: 26px; }
.logo-text span { color: var(--orange); }

.nav-menu { display: flex; gap: 28px; }
.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0;
    width: 0; height: 2px;
    background: var(--orange);
    transition: var(--transition);
}
.nav-link:hover { color: var(--white); }
.nav-link:hover::after { width: 100%; }
.nav-phone {
    color: var(--white);
    font-weight: 700;
    font-size: 15px;
    transition: var(--transition);
}
.nav-phone:hover { color: var(--orange); }

.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}
.hamburger span {
    width: 26px; height: 3px;
    background: var(--white);
    transition: var(--transition);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?w=1920&q=85') center/cover no-repeat;
    overflow: hidden;
    padding-top: 80px;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, rgba(12, 10, 9, 0.92) 0%, rgba(12, 10, 9, 0.7) 60%, rgba(12, 10, 9, 0.3) 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    max-width: 720px;
    padding: 60px 32px 80px;
}
.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--orange);
    color: var(--white);
    font-size: 13px;
    font-weight: 700;
    border-radius: var(--radius);
    margin-bottom: 24px;
}
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(42px, 7vw, 76px);
    font-weight: 700;
    line-height: 1.05;
    text-transform: uppercase;
    margin-bottom: 24px;
    letter-spacing: 1px;
}
.hero-subtitle {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.65;
    max-width: 560px;
    margin-bottom: 36px;
    opacity: 0.92;
}
.hero-actions {
    display: flex;
    gap: 14px;
    margin-bottom: 56px;
    flex-wrap: wrap;
}
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 720px;
    padding: 32px;
    background: rgba(28, 25, 23, 0.7);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--orange);
}
.hero-stat { display: flex; flex-direction: column; }
.stat-num {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--orange);
    line-height: 1;
}
.stat-lbl {
    font-size: 13px;
    opacity: 0.8;
    margin-top: 6px;
    line-height: 1.3;
}

/* ============================================
   TRUST STRIP
   ============================================ */
.trust-strip {
    padding: 56px 0;
    background: var(--graphite);
    color: var(--white);
}
.trust-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 32px;
}
.trust-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    transition: var(--transition);
}
.trust-item:hover { transform: translateY(-3px); }
.trust-icon { font-size: 30px; flex-shrink: 0; }
.trust-item strong {
    display: block;
    font-size: 15px;
    color: var(--white);
    margin-bottom: 4px;
}
.trust-item p {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    line-height: 1.4;
}

/* ============================================
   SECTION HEADER
   ============================================ */
.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 64px;
}
.section-eyebrow {
    font-size: 14px;
    font-weight: 700;
    color: var(--orange);
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
}
.section-title {
    font-family: var(--font-display);
    font-size: clamp(30px, 4vw, 44px);
    font-weight: 600;
    line-height: 1.15;
    color: var(--graphite);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.section-subtitle {
    font-size: 17px;
    color: var(--concrete-light);
    margin-top: 16px;
    line-height: 1.6;
}

/* ============================================
   PROJECTS
   ============================================ */
.projects { padding: 100px 0; background: var(--steel-extra-light); }
.projects-filters {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 48px;
    flex-wrap: wrap;
}
.filter-btn {
    padding: 10px 22px;
    background: var(--white);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    color: var(--concrete);
    cursor: pointer;
    transition: var(--transition);
}
.filter-btn:hover { border-color: var(--orange); color: var(--orange); }
.filter-btn.active {
    background: var(--orange);
    border-color: var(--orange);
    color: var(--white);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.project-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
}
.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}
.project-card.hidden { display: none; }
.project-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}
.project-image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.project-card:hover .project-image img { transform: scale(1.08); }
.project-tag {
    position: absolute;
    top: 14px; left: 14px;
    padding: 6px 14px;
    background: var(--orange);
    color: var(--white);
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.tag-brick { background: #B91C1C; }
.tag-aerated { background: #1D4ED8; }
.tag-mono { background: var(--graphite); }
.project-info { padding: 24px; }
.project-info h3 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--graphite);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}
.project-specs {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border);
}
.project-specs span {
    font-size: 13px;
    color: var(--concrete-light);
}
.project-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.price-label {
    display: block;
    font-size: 12px;
    color: var(--concrete-light);
}
.price-value {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--orange);
}
.project-btn {
    font-size: 14px;
    font-weight: 700;
    color: var(--graphite);
    padding: 8px 16px;
    border: 2px solid var(--graphite);
    border-radius: var(--radius);
    transition: var(--transition);
}
.project-btn:hover {
    background: var(--graphite);
    color: var(--white);
}

/* ============================================
   SERVICES
   ============================================ */
.services { padding: 100px 0; background: var(--white); }
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
}
.service-card {
    background: var(--white);
    padding: 40px 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 4px;
    background: var(--orange);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}
.service-card:hover {
    background: var(--graphite);
    color: rgba(255,255,255,0.85);
}
.service-card:hover::before { transform: scaleX(1); }
.service-num {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: var(--orange);
    margin-bottom: 18px;
}
.service-card h3 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--graphite);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
    transition: var(--transition);
}
.service-card:hover h3 { color: var(--white); }
.service-card p {
    font-size: 15px;
    color: var(--concrete-light);
    line-height: 1.65;
    transition: var(--transition);
}
.service-card:hover p { color: rgba(255,255,255,0.7); }

/* ============================================
   PROCESS
   ============================================ */
.process { padding: 100px 0; background: var(--graphite); color: var(--white); }
.process .section-title { color: var(--white); }
.process-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
}
.process-step {
    display: flex;
    gap: 18px;
    padding: 28px;
    background: var(--graphite-light);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--orange);
    transition: var(--transition);
}
.process-step:hover {
    transform: translateY(-4px);
    background: var(--concrete);
}
.step-num {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 700;
    color: var(--orange);
    line-height: 1;
    flex-shrink: 0;
}
.step-content h3 {
    font-family: var(--font-display);
    font-size: 19px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}
.step-content p {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    line-height: 1.6;
    margin-bottom: 10px;
}
.step-time {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(249, 115, 22, 0.15);
    color: var(--orange-light);
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius);
}

/* ============================================
   CALCULATOR
   ============================================ */
.calculator { padding: 100px 0; background: var(--steel-extra-light); }
.calc-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    max-width: 1140px;
    margin: 0 auto;
}
.calc-left {
    padding: 56px 48px;
    background: var(--graphite);
    color: var(--white);
}
.calc-left .section-title { color: var(--white); }
.calc-left .section-eyebrow { color: var(--orange); }
.calc-left .section-subtitle { color: rgba(255,255,255,0.8); margin-top: 16px; }
.calc-benefits {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.calc-benefits div {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
}
.calc-benefits span {
    width: 24px; height: 24px;
    background: var(--orange);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 800;
}

.calc-right { padding: 48px; }
.calc-form { display: flex; flex-direction: column; }
.form-group { margin-bottom: 24px; }
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--graphite);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Range slider */
.range-wrapper { position: relative; padding: 12px 0; }
.range-wrapper input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--steel);
    border-radius: 3px;
    outline: none;
}
.range-wrapper input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px; height: 24px;
    background: var(--orange);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-orange);
    transition: var(--transition);
}
.range-wrapper input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }
.range-wrapper input[type="range"]::-moz-range-thumb {
    width: 24px; height: 24px;
    background: var(--orange);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}
.range-output {
    margin-top: 10px;
    font-size: 18px;
    color: var(--graphite);
}
.range-output strong {
    font-family: var(--font-display);
    font-size: 28px;
    color: var(--orange);
}

/* Tech options */
.tech-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.tech-option { cursor: pointer; }
.tech-option input { display: none; }
.tech-option span {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 14px 10px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--graphite);
    transition: var(--transition);
    line-height: 1.3;
}
.tech-option span small {
    display: block;
    font-size: 12px;
    color: var(--concrete-light);
    font-weight: 400;
    margin-top: 4px;
}
.tech-option input:checked + span {
    background: var(--orange);
    border-color: var(--orange);
    color: var(--white);
}
.tech-option input:checked + span small { color: rgba(255,255,255,0.85); }

.calc-form select,
.calc-form input[type="text"],
.calc-form input[type="tel"] {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-sans);
    font-size: 16px;
    color: var(--graphite);
    background: var(--white);
    transition: var(--transition);
}
.calc-form select:focus,
.calc-form input[type="text"]:focus,
.calc-form input[type="tel"]:focus {
    outline: none;
    border-color: var(--orange);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.calc-result {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--steel-extra-light);
    border-radius: var(--radius);
    margin-bottom: 12px;
    gap: 16px;
}
.result-label {
    display: block;
    font-size: 13px;
    color: var(--concrete-light);
    margin-bottom: 4px;
}
.result-value {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: var(--orange);
}
.form-success {
    display: none;
    padding: 14px;
    background: var(--green);
    color: var(--white);
    text-align: center;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
}
.form-success.show { display: block; animation: fadeIn 0.4s; }

/* ============================================
   REVIEWS
   ============================================ */
.reviews { padding: 100px 0; background: var(--white); }
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.review-card {
    background: var(--steel-extra-light);
    padding: 32px;
    border-radius: var(--radius-lg);
    border-top: 4px solid var(--orange);
    transition: var(--transition);
}
.review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    background: var(--white);
}
.review-stars {
    color: var(--amber);
    font-size: 18px;
    letter-spacing: 3px;
    margin-bottom: 16px;
}
.review-card > p {
    font-size: 15px;
    color: var(--graphite);
    line-height: 1.7;
    margin-bottom: 20px;
}
.review-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}
.review-avatar {
    width: 42px; height: 42px;
    background: var(--orange);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
}
.review-author strong {
    display: block;
    font-size: 14px;
    color: var(--graphite);
}
.review-author small {
    font-size: 13px;
    color: var(--concrete-light);
}

/* ============================================
   CONTACTS
   ============================================ */
.contacts { padding: 100px 0; background: var(--steel-extra-light); }
.contacts-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 40px;
    align-items: stretch;
}
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.contact-item {
    display: flex;
    gap: 16px;
    padding: 22px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}
.contact-item:hover { border-color: var(--orange); }
.contact-icon { font-size: 26px; flex-shrink: 0; }
.contact-item strong {
    display: block;
    font-size: 14px;
    color: var(--graphite);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}
.contact-item p { font-size: 14px; color: var(--concrete-light); line-height: 1.6; }
.contact-item a:hover { color: var(--orange); }
.contact-info .btn { margin-top: 8px; }
.map-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 480px;
    box-shadow: var(--shadow-md);
}
.map-container iframe { width: 100%; height: 100%; min-height: 480px; border: 0; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--ink);
    color: rgba(255,255,255,0.65);
    padding: 72px 0 32px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.3fr;
    gap: 48px;
    margin-bottom: 48px;
}
.footer .logo { color: var(--white); margin-bottom: 18px; }
.footer-tagline {
    font-size: 14px;
    line-height: 1.7;
    opacity: 0.7;
    max-width: 320px;
}
.footer-col h4 {
    color: var(--white);
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 18px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
    font-size: 14px;
    opacity: 0.7;
    transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--orange); opacity: 1; }
.footer-col > p { font-size: 14px; opacity: 0.7; margin-bottom: 8px; line-height: 1.6; }
.footer-phone {
    display: block;
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--orange) !important;
    margin: 8px 0;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 28px;
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    opacity: 0.5;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 968px) {
    .nav-menu, .nav-phone, .btn-nav {
        position: fixed;
        top: 0; right: -100%;
        width: 80%; max-width: 320px;
        height: 100vh;
        background: var(--graphite);
        flex-direction: column;
        justify-content: center;
        padding: 40px;
        gap: 22px;
        transition: right 0.4s ease;
        box-shadow: var(--shadow-lg);
        z-index: 1001;
    }
    .nav-menu.active, .nav-phone.active, .btn-nav.active { right: 0; }
    .nav-menu { display: flex; }
    .btn-nav, .nav-phone { display: none; }
    .hamburger { display: flex; }

    .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .process-timeline { grid-template-columns: 1fr; max-width: 540px; }
    .calc-card { grid-template-columns: 1fr; }
    .calc-left, .calc-right { padding: 40px 32px; }
    .reviews-grid { grid-template-columns: 1fr; max-width: 540px; margin: 0 auto; }
    .contacts-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 560px) {
    .container, .nav-container { padding: 0 20px; }
    .trust-grid,
    .projects-grid,
    .services-grid,
    .hero-stats { grid-template-columns: 1fr; }
    .hero-stats { padding: 24px; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .tech-options { grid-template-columns: 1fr; }
    .calc-result { flex-direction: column; align-items: stretch; }
    .calc-result .btn { width: 100%; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}