/* ===== CSS Variables — Premium Eco Theme ===== */
:root {
    --green-900: #0A2F0F;
    --green-800: #134E1A;
    --green-700: #1B6B24;
    --green-600: #228B2E;
    --green-500: #2E9E3D;
    --green-400: #4CAF50;
    --green-300: #81C784;
    --green-200: #A5D6A7;
    --green-100: #C8E6C9;
    --green-50:  #E8F5E9;
    
    --gold: #C9A227;
    --gold-light: #E8D48B;
    
    --white: #FFFFFF;
    --off-white: #FAFCF9;
    --gray-50: #F7F9F7;
    --gray-100: #EEF2EE;
    --gray-200: #DDE5DD;
    --gray-400: #8A9A8A;
    --gray-600: #4A5A4A;
    --gray-800: #1E2A1E;
    --gray-900: #0F180F;
    
    --shadow-sm: 0 2px 8px rgba(10, 47, 15, 0.06);
    --shadow: 0 4px 20px rgba(10, 47, 15, 0.08);
    --shadow-md: 0 8px 30px rgba(10, 47, 15, 0.12);
    --shadow-lg: 0 16px 50px rgba(10, 47, 15, 0.16);
    --shadow-green: 0 8px 30px rgba(34, 139, 46, 0.25);
    
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    --font-heading: 'Montserrat', system-ui, sans-serif;
    --font-body: 'Open Sans', system-ui, sans-serif;
    
    --header-h: 80px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    color: var(--gray-800);
    background: var(--off-white);
    line-height: 1.65;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul { list-style: none; }

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}

.container {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-subtitle {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--green-600);
    text-transform: uppercase;
    letter-spacing: 2.5px;
    margin-bottom: 14px;
    position: relative;
}

.section-subtitle::after {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--green-500), var(--gold));
    border-radius: 2px;
    margin: 10px auto 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.9rem, 4.5vw, 2.75rem);
    font-weight: 800;
    color: var(--green-900);
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-desc {
    max-width: 640px;
    margin: 0 auto;
    color: var(--gray-600);
    font-size: 1.05rem;
    line-height: 1.7;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 32px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--green-700) 0%, var(--green-600) 100%);
    color: var(--white);
    box-shadow: var(--shadow-green);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(34, 139, 46, 0.35);
    background: linear-gradient(135deg, var(--green-600) 0%, var(--green-500) 100%);
}

.btn-outline {
    background: transparent;
    color: var(--green-700);
    border-color: var(--green-600);
}

.btn-outline:hover {
    background: var(--green-700);
    color: var(--white);
    border-color: var(--green-700);
}

.btn-sm {
    padding: 11px 24px;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

/* ===== Preloader ===== */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--off-white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-inner {
    text-align: center;
}

.preloader-logo {
    width: 110px;
    height: 110px;
    margin: 0 auto 24px;
    animation: pulse 1.6s ease-in-out infinite;
    border-radius: 50%;
}

.loader-bar {
    width: 140px;
    height: 4px;
    background: var(--green-100);
    border-radius: 4px;
    overflow: hidden;
    margin: 0 auto;
}

.loader-bar::after {
    content: '';
    display: block;
    width: 45%;
    height: 100%;
    background: linear-gradient(90deg, var(--green-600), var(--gold));
    border-radius: 4px;
    animation: loading 1.1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.06); opacity: 0.9; }
}

@keyframes loading {
    0% { transform: translateX(-120%); }
    100% { transform: translateX(280%); }
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-h);
    background: rgba(250, 252, 249, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.97);
    border-bottom-color: var(--gray-100);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 2px 10px rgba(34, 139, 46, 0.2);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--green-900);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.logo-tagline {
    font-size: 0.68rem;
    color: var(--gray-400);
    font-weight: 500;
    letter-spacing: 0.3px;
}

.nav-list {
    display: flex;
    gap: 4px;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 550;
    font-size: 0.875rem;
    color: var(--gray-600);
    padding: 8px 14px;
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--green-700);
    background: var(--green-50);
}

.nav-link.active {
    color: var(--green-700);
    background: var(--green-100);
    font-weight: 600;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--green-700);
    padding: 8px 16px;
    background: var(--green-50);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.header-phone:hover {
    background: var(--green-100);
    color: var(--green-800);
}

.header-phone i {
    font-size: 0.85rem;
}

.burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    cursor: pointer;
    padding: 4px;
}

.burger span {
    display: block;
    height: 2.5px;
    background: var(--green-800);
    border-radius: 2px;
    transition: var(--transition);
}

.burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    z-index: 999;
    padding: 32px 24px;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav-list {
    margin-bottom: 40px;
}

.mobile-nav-link {
    display: block;
    font-family: var(--font-heading);
    font-weight: 650;
    font-size: 1.25rem;
    color: var(--green-900);
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-100);
}

.mobile-nav-link:hover {
    color: var(--green-600);
}

.mobile-contacts {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mobile-contacts a {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    color: var(--green-700);
    font-size: 1.05rem;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--header-h) + 40px) 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 70% 20%, rgba(76, 175, 80, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 20% 80%, rgba(201, 162, 39, 0.08) 0%, transparent 50%),
        linear-gradient(160deg, #F0F7F0 0%, #E8F5E9 30%, #FAFCF9 70%, #FFFFFF 100%);
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    color: var(--green-700);
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 650;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--green-100);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 5.5vw, 3.5rem);
    font-weight: 800;
    color: var(--green-900);
    line-height: 1.15;
    margin-bottom: 22px;
    letter-spacing: -0.03em;
}

.hero-title span {
    background: linear-gradient(135deg, var(--green-600), var(--green-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: 36px;
    max-width: 520px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 36px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-number {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--green-700);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gray-400);
    font-weight: 500;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo-wrap {
    position: relative;
    width: 360px;
    height: 360px;
}

.hero-logo-wrap::before {
    content: '';
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, rgba(76, 175, 80, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: glow 4s ease-in-out infinite;
}

.hero-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 25px 50px rgba(10, 47, 15, 0.18));
    animation: float 7s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-18px); }
}

@keyframes glow {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

.scroll-down {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-down a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--white);
    color: var(--green-600);
    box-shadow: var(--shadow);
    font-size: 0.95rem;
    animation: bounce 2.2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* ===== About ===== */
.about {
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 48px;
    align-items: start;
}

.about-lead {
    font-size: 1.15rem;
    color: var(--gray-800);
    margin-bottom: 18px;
    line-height: 1.7;
}

.about-content > p {
    color: var(--gray-600);
    margin-bottom: 14px;
    line-height: 1.7;
}

.about-info {
    margin-top: 36px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.info-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 16px 18px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.info-item:hover {
    background: var(--green-50);
    border-color: var(--green-100);
}

.info-item i {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--green-600), var(--green-500));
    color: var(--white);
    border-radius: 12px;
    font-size: 1rem;
    flex-shrink: 0;
}

.info-item strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--green-900);
    margin-bottom: 2px;
}

.info-item span {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.about-card {
    background: linear-gradient(145deg, var(--green-800) 0%, var(--green-700) 50%, var(--green-600) 100%);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    color: var(--white);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 120%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 60%);
    pointer-events: none;
}

.about-card h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 28px;
    position: relative;
}

.about-list {
    margin-bottom: 32px;
    position: relative;
}

.about-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 0.95rem;
    line-height: 1.45;
}

.about-list i {
    color: var(--green-300);
    margin-top: 3px;
    flex-shrink: 0;
    font-size: 1rem;
}

.about-card .btn-primary {
    background: var(--white);
    color: var(--green-800);
    box-shadow: none;
    position: relative;
}

.about-card .btn-primary:hover {
    background: var(--green-50);
    transform: translateY(-2px);
}

/* ===== Services ===== */
.services {
    background: var(--gray-50);
}

.services-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 44px;
}

.tab-btn {
    padding: 12px 24px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--gray-600);
    background: var(--white);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    border: 1.5px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.tab-btn:hover {
    color: var(--green-700);
    border-color: var(--green-300);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--green-700), var(--green-600));
    color: var(--white);
    border-color: transparent;
    box-shadow: var(--shadow-green);
}

.tab-panel {
    display: none;
    animation: fadeUp 0.4s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 20px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--gray-100);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--green-500), var(--gold));
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--green-100);
}

.service-card:hover::after {
    opacity: 1;
}

.service-card.highlight {
    background: linear-gradient(160deg, var(--white) 0%, var(--green-50) 100%);
    border-color: var(--green-200);
}

.service-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--green-50), var(--green-100));
    color: var(--green-600);
    border-radius: 14px;
    font-size: 1.25rem;
    margin-bottom: 18px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--green-600), var(--green-500));
    color: var(--white);
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 650;
    color: var(--green-900);
    margin-bottom: 14px;
    line-height: 1.4;
    flex-grow: 1;
}

.service-price {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--green-600);
    letter-spacing: -0.02em;
}

.services-note {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    margin-top: 44px;
    padding: 22px 26px;
    background: var(--white);
    border-radius: var(--radius);
    border-left: 4px solid var(--gold);
    box-shadow: var(--shadow-sm);
}

.services-note i {
    color: var(--gold);
    font-size: 1.25rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.services-note p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===== Advantages ===== */
.advantages {
    background: var(--white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.advantage-card {
    background: var(--gray-50);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: var(--transition);
    border: 1px solid var(--gray-100);
    position: relative;
}

.advantage-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    border-color: var(--green-100);
    transform: translateY(-5px);
}

.advantage-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--green-700), var(--green-500));
    color: var(--white);
    border-radius: 16px;
    font-size: 1.4rem;
    margin-bottom: 22px;
    box-shadow: 0 6px 20px rgba(34, 139, 46, 0.25);
}

.advantage-card h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--green-900);
    margin-bottom: 12px;
}

.advantage-card p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.65;
}

/* ===== Portfolio ===== */
.portfolio {
    background: var(--gray-50);
}

.portfolio-grid {
    max-width: 920px;
    margin: 0 auto;
}

.portfolio-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    border: 1px solid var(--gray-100);
}

.portfolio-img-wrap {
    overflow: hidden;
    background: #f5f5f5;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 16px;
}

.portfolio-img {
    width: 100%;
    height: auto;
    max-height: none;
    object-fit: contain;
    object-position: top;
    border-radius: 6px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: transform 0.4s ease;
}

.portfolio-item:hover .portfolio-img {
    transform: scale(1.02);
}

.portfolio-info {
    padding: 40px 36px;
    display: flex;
    flex-direction: column;
}

.portfolio-info h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--green-900);
    margin-bottom: 8px;
}

.portfolio-org {
    font-weight: 650;
    color: var(--green-600);
    font-size: 0.9rem;
    margin-bottom: 18px;
}

.portfolio-info p {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
    flex-grow: 1;
}

.portfolio-year {
    font-size: 0.85rem;
    color: var(--gray-400);
    font-weight: 600;
}

.portfolio-cta {
    text-align: center;
    margin-top: 48px;
}

.portfolio-cta p {
    font-size: 1.15rem;
    color: var(--gray-600);
    margin-bottom: 18px;
    font-weight: 500;
}

/* ===== Contacts ===== */
.contacts {
    background: var(--white);
}

.contacts-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    align-items: start;
}

.contacts-info {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.contact-card:hover {
    background: var(--green-50);
    border-color: var(--green-100);
}

.contact-icon {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--green-700), var(--green-500));
    color: var(--white);
    border-radius: 12px;
    font-size: 1.05rem;
    flex-shrink: 0;
}

.contact-card h4 {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    color: var(--gray-400);
    margin-bottom: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-card a,
.contact-card span {
    font-weight: 650;
    color: var(--green-900);
    font-size: 1rem;
}

.contact-card a:hover {
    color: var(--green-600);
}

.contact-legal {
    margin-top: 8px;
    padding: 22px;
    background: linear-gradient(135deg, var(--green-50), var(--gray-50));
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.75;
    border: 1px solid var(--green-100);
}

.contact-legal strong {
    color: var(--green-900);
    font-family: var(--font-heading);
}

.contact-form-wrap {
    position: relative;
}

.contact-form {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
}

.contact-form h3 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    font-weight: 750;
    color: var(--green-900);
    margin-bottom: 8px;
}

.form-desc {
    color: var(--gray-600);
    font-size: 0.95rem;
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--green-900);
    margin-bottom: 7px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 13px 16px;
    background: var(--white);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    color: var(--gray-800);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--green-500);
    box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.12);
}

.form-group textarea {
    resize: vertical;
    min-height: 110px;
}

.form-note {
    font-size: 0.75rem;
    color: var(--gray-400);
    text-align: center;
    margin-top: 16px;
}

.form-success {
    display: none;
    text-align: center;
    padding: 70px 30px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
}

.form-success.active {
    display: block;
}

.form-success i {
    font-size: 3.8rem;
    color: var(--green-500);
    margin-bottom: 18px;
}

.form-success h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 750;
    color: var(--green-900);
    margin-bottom: 8px;
}

.form-success p {
    color: var(--gray-600);
}

/* ===== Footer ===== */
.footer {
    background: linear-gradient(160deg, var(--green-900) 0%, var(--green-800) 100%);
    color: rgba(255,255,255,0.75);
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.footer-logo img {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.footer-logo span {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--white);
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
    opacity: 0.85;
}

.footer-links h4,
.footer-contacts h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    letter-spacing: 0.3px;
}

.footer-links ul,
.footer-contacts ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9rem;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--green-300);
}

.footer-contacts li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
}

.footer-contacts a {
    opacity: 0.85;
}

.footer-contacts a:hover {
    opacity: 1;
    color: var(--green-300);
}

.footer-contacts i {
    width: 18px;
    color: var(--green-300);
    font-size: 0.9rem;
}

.footer-bottom {
    padding: 28px 0;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.45);
}

.footer-bottom p {
    margin-bottom: 4px;
}

/* ===== Back to top ===== */
.back-to-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--green-700), var(--green-600));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: var(--transition);
    box-shadow: var(--shadow-green);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(34, 139, 46, 0.4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-logo-wrap {
        width: 280px;
        height: 280px;
        margin: 0 auto;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-item {
        grid-template-columns: 1fr;
    }
    
    .portfolio-img-wrap {
        max-height: none;
        padding: 12px;
    }
    
    .contacts-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .nav,
    .header-contacts {
        display: none;
    }
    
    .burger {
        display: flex;
    }
    
    .section {
        padding: 70px 0;
    }
    
    .hero {
        padding: calc(var(--header-h) + 24px) 0 60px;
        min-height: auto;
    }
    
    .hero-logo-wrap {
        width: 220px;
        height: 220px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .services-tabs {
        gap: 8px;
    }
    
    .tab-btn {
        padding: 10px 16px;
        font-size: 0.8rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .contact-form {
        padding: 28px 22px;
    }
    
    .about-card {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.7rem;
    }
}

/* Selected services on contact form */
.selected-services-list {
    background: var(--green-50);
    border: 1px solid var(--green-100);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    margin-bottom: 8px;
}

.selected-service-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--gray-800);
    border-bottom: 1px solid var(--green-100);
}

.selected-service-item:last-child {
    border-bottom: none;
}

.selected-service-item .ss-price {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--green-700);
    white-space: nowrap;
    margin-left: 12px;
}

.edit-selection-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--green-600);
    margin-top: 4px;
}

.edit-selection-link:hover {
    color: var(--green-800);
}