/* ===== Переменные ===== */
:root {
    --green-dark: #145a1e;
    --green: #1d8a2f;
    --green-medium: #27ae3b;
    --green-light: #5dd672;
    --green-pale: #eafbee;
    --green-glow: rgba(29, 138, 47, 0.15);
    --green-gradient: linear-gradient(160deg, #0d4a16 0%, #1d8a2f 40%, #27ae3b 100%);
    --green-gradient-soft: linear-gradient(135deg, #eafbee 0%, #d4f5db 100%);
    --white: #ffffff;
    --off-white: #f8fcf9;
    --gray-50: #f7faf8;
    --gray-100: #f0f4f1;
    --gray-200: #e2e8e4;
    --gray-400: #a3b0a6;
    --gray-600: #5f6e63;
    --gray-800: #2d3830;
    --gray-900: #1a2420;
    --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 50px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.14);
    --shadow-green: 0 8px 30px rgba(29, 138, 47, 0.2);
    --shadow-green-lg: 0 16px 50px rgba(29, 138, 47, 0.25);
    --radius: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

body.no-scroll {
    overflow: hidden;
}

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

/* ===== Утилиты ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 28px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 900;
    text-align: center;
    margin-bottom: 56px;
    color: var(--green-dark);
    position: relative;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 4px;
    background: var(--green-gradient);
    border-radius: 4px;
    margin: 16px auto 0;
}

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

.section-title--light::after {
    background: rgba(255, 255, 255, 0.5);
}

/* ===== Шапка ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--green-gradient);
    padding: 0;
    box-shadow: 0 4px 30px rgba(13, 74, 22, 0.35);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    height: 72px;
}

.logo {
    font-size: clamp(1.3rem, 2.5vw, 1.7rem);
    font-weight: 900;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
    padding-left: 16px;
}

.logo::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 28px;
    background: var(--green-light);
    border-radius: 3px;
}

.header-phones {
    display: flex;
    gap: 12px;
    align-items: center;
}

.phone {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--white);
    padding: 8px 18px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-radius: 50px;
    transition: var(--transition);
    backdrop-filter: blur(4px);
    background: rgba(255, 255, 255, 0.06);
}

.phone:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.7);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.phone svg {
    flex-shrink: 0;
    opacity: 0.8;
}

/* Бургер */
.burger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.burger span {
    display: block;
    width: 28px;
    height: 2.5px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition);
    transform-origin: center;
}

.burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Мобильное меню */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 48px;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    transform: scale(0.95);
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: all;
    transform: scale(1);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
}

.mobile-nav a {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--green-dark);
    text-transform: lowercase;
    transition: var(--transition);
    position: relative;
}

.mobile-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--green);
    transition: var(--transition);
}

.mobile-nav a:hover::after {
    width: 100%;
}

.mobile-phones {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.mobile-phones a {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--green);
    padding: 10px 24px;
    border: 2px solid var(--green-light);
    border-radius: 50px;
}

/* ===== Основной контент ===== */
.main {
    padding: 70px 0;
    background: var(--white);
    position: relative;
}

.main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: var(--green-gradient-soft);
    pointer-events: none;
}

.content-wrapper {
    display: flex;
    gap: 50px;
    align-items: flex-start;
    position: relative;
    z-index: 1;
}

/* ===== Боковое меню ===== */
.sidebar {
    flex-shrink: 0;
    width: 240px;
    position: sticky;
    top: 92px;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-link {
    display: block;
    padding: 15px 22px;
    background: var(--green);
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 700;
    text-align: center;
    border-radius: var(--radius);
    transition: var(--transition);
    text-transform: lowercase;
    box-shadow: var(--shadow-sm);
    border: none;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: 0.6s;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover {
    background: var(--green-dark);
    transform: translateX(8px);
    box-shadow: var(--shadow-green);
}

/* ===== Преимущества ===== */
.advantages {
    flex: 1;
    min-width: 0;
}

.advantages-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 3px solid var(--green-pale);
    position: relative;
}

.advantages-title::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 80px;
    height: 3px;
    background: var(--green);
    border-radius: 2px;
}

.advantage-card {
    display: flex;
    gap: 22px;
    align-items: flex-start;
    padding: 26px 28px;
    margin-bottom: 16px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    border-left: 5px solid var(--green);
    transition: var(--transition);
    position: relative;
}

.advantage-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    background: var(--green-gradient-soft);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.advantage-card:hover {
    transform: translateX(8px) translateY(-2px);
    box-shadow: var(--shadow-green);
    border-color: var(--green-light);
}

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

.advantage-number {
    font-size: 2.4rem;
    font-weight: 900;
    background: var(--green-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    flex-shrink: 0;
    opacity: 0.6;
    transition: var(--transition);
}

.advantage-card:hover .advantage-number {
    opacity: 1;
    transform: scale(1.1);
}

.advantage-content h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 8px;
}

.advantage-content p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.75;
}

/* ===== Портфолио ===== */
.portfolio {
    padding: 90px 0;
    background: var(--gray-50);
    position: relative;
}

.portfolio::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green-light), transparent);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.portfolio-item {
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition-bounce);
    aspect-ratio: 4 / 3;
}

.portfolio-item:hover {
    transform: scale(1.05) rotate(0.5deg);
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-placeholder {
    aspect-ratio: 4 / 3;
    background: var(--white);
    border: 2px dashed var(--green-light);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--green-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.portfolio-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--green-gradient-soft);
    opacity: 0;
    transition: var(--transition);
}

.portfolio-placeholder span {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    z-index: 1;
}

.portfolio-placeholder svg {
    position: relative;
    z-index: 1;
}

.portfolio-item:hover .portfolio-placeholder {
    border-color: var(--green);
    border-style: solid;
    color: var(--green);
}

.portfolio-item:hover .portfolio-placeholder::before {
    opacity: 1;
}

/* ===== Этапы работы ===== */
.steps {
    padding: 90px 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.steps::after {
    content: '';
    position: absolute;
    bottom: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: var(--green-pale);
    border-radius: 50%;
    opacity: 0.5;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    position: relative;
    z-index: 1;
}

.steps-grid::before {
    content: '';
    position: absolute;
    top: 52px;
    left: 14%;
    right: 14%;
    height: 3px;
    background: linear-gradient(90deg, var(--green-pale), var(--green-light), var(--green-pale));
    border-radius: 2px;
    z-index: 0;
}

.step-card {
    text-align: center;
    padding: 28px 14px;
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-8px);
}

.step-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 14px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green);
    transition: var(--transition);
    border: 3px solid var(--green-light);
    box-shadow: var(--shadow-sm);
}

.step-card:hover .step-icon {
    background: var(--green);
    color: var(--white);
    border-color: var(--green);
    box-shadow: var(--shadow-green-lg);
    transform: scale(1.1);
}

.step-number {
    font-size: 0.75rem;
    font-weight: 900;
    color: var(--white);
    background: var(--green-gradient);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: -8px auto 14px;
    box-shadow: 0 2px 8px rgba(29, 138, 47, 0.3);
}

.step-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 8px;
}

.step-card p {
    font-size: 0.82rem;
    color: var(--gray-600);
    line-height: 1.55;
}

/* ===== Прайс ===== */
.pricing {
    padding: 90px 0;
    background: var(--gray-50);
    position: relative;
}

.pricing::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green-light), transparent);
}

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

.price-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 40px 28px 36px;
    text-align: center;
    border: 2px solid var(--gray-200);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.price-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--green-gradient);
    opacity: 0;
    transition: var(--transition);
}

.price-card:hover {
    border-color: var(--green-light);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.price-card:hover::before {
    opacity: 1;
}

.price-card--featured {
    border-color: var(--green);
    box-shadow: var(--shadow-green);
    transform: scale(1.04);
}

.price-card--featured::before {
    opacity: 1;
    height: 5px;
}

.price-card--featured:hover {
    transform: scale(1.04) translateY(-8px);
    box-shadow: var(--shadow-green-lg);
}

.price-badge {
    position: absolute;
    top: 18px;
    right: -32px;
    background: var(--green-gradient);
    color: var(--white);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 5px 40px;
    transform: rotate(45deg);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(29, 138, 47, 0.3);
}

.price-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 14px;
    margin-top: 14px;
}

.price-value {
    font-size: 2.2rem;
    font-weight: 900;
    background: var(--green-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 26px;
}

.price-features {
    list-style: none;
    text-align: left;
    margin-bottom: 30px;
    flex: 1;
}

.price-features li {
    padding: 10px 0;
    font-size: 0.88rem;
    color: var(--gray-800);
    border-bottom: 1px solid var(--gray-100);
    padding-left: 28px;
    position: relative;
}

.price-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--green);
    font-weight: 900;
    font-size: 0.9rem;
}

.btn-order {
    display: block;
    padding: 15px 24px;
    background: var(--green-gradient);
    color: var(--white);
    font-size: 0.88rem;
    font-weight: 700;
    border-radius: 50px;
    text-align: center;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-green);
}

.btn-order:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-green-lg);
    filter: brightness(1.1);
}

/* ===== Отзывы ===== */
.reviews {
    padding: 90px 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.reviews::before {
    content: '';
    position: absolute;
    top: -80px;
    left: -80px;
    width: 250px;
    height: 250px;
    background: var(--green-pale);
    border-radius: 50%;
    opacity: 0.6;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.review-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 32px 26px;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
}

.review-card::before {
    content: '"';
    position: absolute;
    top: 16px;
    right: 24px;
    font-size: 4rem;
    font-weight: 900;
    color: var(--green-pale);
    line-height: 1;
    font-family: Georgia, serif;
}

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

.review-stars {
    color: #f5a623;
    font-size: 1.1rem;
    margin-bottom: 16px;
    letter-spacing: 3px;
}

.review-text {
    font-size: 0.88rem;
    color: var(--gray-600);
    line-height: 1.75;
    margin-bottom: 22px;
    font-style: italic;
    position: relative;
    z-index: 1;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-100);
}

.review-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--green-gradient);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: var(--shadow-green);
}

.review-author strong {
    display: block;
    font-size: 0.88rem;
    color: var(--green-dark);
}

.review-author span {
    font-size: 0.78rem;
    color: var(--gray-400);
}

/* ===== Контакты ===== */
.contact {
    padding: 90px 0;
    background: var(--green-gradient);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: -150px;
    right: -150px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.contact::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 70%);
    pointer-events: none;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
    position: relative;
    z-index: 1;
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 14px;
}

.contact-info p {
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.75;
    margin-bottom: 28px;
}

.contact-phones {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 24px;
}

.contact-phone {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    transition: var(--transition);
}

.contact-phone:hover {
    transform: translateX(8px);
}

.contact-phone svg {
    opacity: 0.7;
}

.contact-schedule {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.88rem;
    padding: 12px 18px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    width: fit-content;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    background: rgba(255, 255, 255, 0.07);
    padding: 32px;
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 15px 20px;
    font-family: inherit;
    font-size: 0.92rem;
    border: 2px solid transparent;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.95);
    color: var(--gray-900);
    outline: none;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--green-light);
    box-shadow: 0 0 0 4px rgba(93, 214, 114, 0.2);
    transform: translateY(-1px);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--gray-400);
}

.contact-form textarea {
    resize: vertical;
    min-height: 100px;
}

.contact-form select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23757575' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 18px center;
}

.btn-submit {
    padding: 16px 28px;
    background: var(--white);
    color: var(--green-dark);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-md);
    margin-top: 4px;
}

.btn-submit:hover {
    background: var(--green-pale);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ===== Футер ===== */
.footer {
    background: var(--gray-900);
    padding: 56px 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 44px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-logo {
    font-weight: 900;
    font-size: 1.2rem;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
    padding-left: 14px;
}

.footer-logo::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: var(--green-light);
    border-radius: 2px;
}

.footer-desc {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.45);
    line-height: 1.7;
    max-width: 300px;
}

.footer-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.footer-col a,
.footer-col span {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.5);
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--green-light);
    transform: translateX(4px);
}

.footer-bottom {
    padding: 22px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.3);
    letter-spacing: 0.5px;
}

/* ===== Анимации ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.advantage-card:nth-child(3) { transition-delay: 0.1s; }
.advantage-card:nth-child(4) { transition-delay: 0.2s; }

.portfolio-item:nth-child(2) { transition-delay: 0.05s; }
.portfolio-item:nth-child(3) { transition-delay: 0.1s; }
.portfolio-item:nth-child(4) { transition-delay: 0.15s; }
.portfolio-item:nth-child(5) { transition-delay: 0.2s; }
.portfolio-item:nth-child(6) { transition-delay: 0.25s; }
.portfolio-item:nth-child(7) { transition-delay: 0.3s; }
.portfolio-item:nth-child(8) { transition-delay: 0.35s; }
.portfolio-item:nth-child(9) { transition-delay: 0.4s; }

.step-card:nth-child(2) { transition-delay: 0.1s; }
.step-card:nth-child(3) { transition-delay: 0.2s; }
.step-card:nth-child(4) { transition-delay: 0.3s; }

.price-card:nth-child(2) { transition-delay: 0.1s; }
.price-card:nth-child(3) { transition-delay: 0.2s; }

.review-card:nth-child(2) { transition-delay: 0.1s; }
.review-card:nth-child(3) { transition-delay: 0.2s; }

/* ===== Адаптивность ===== */
@media (max-width: 1024px) {
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps-grid::before {
        display: none;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 420px;
        margin: 0 auto;
    }

    .price-card--featured {
        transform: none;
    }

    .price-card--featured:hover {
        transform: translateY(-8px);
    }

    .reviews-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 900px) {
    .burger {
        display: flex;
    }

    .header-phones {
        display: none;
    }

    .content-wrapper {
        flex-direction: column;
        gap: 32px;
    }

    .sidebar {
        width: 100%;
        position: static;
    }

    .nav-menu {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
    }

    .nav-link {
        padding: 11px 18px;
        font-size: 0.82rem;
        flex: 1 1 auto;
        min-width: fit-content;
    }

    .nav-link:hover {
        transform: translateY(-3px);
    }

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

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 560px) {
    .container {
        padding: 0 18px;
    }

    .main {
        padding: 44px 0;
    }

    .nav-menu {
        flex-direction: column;
    }

    .nav-link {
        font-size: 0.88rem;
    }

    .nav-link:hover {
        transform: translateX(6px);
    }

    .advantage-card {
        flex-direction: column;
        gap: 10px;
        padding: 20px;
    }

    .advantage-number {
        font-size: 1.8rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 36px;
    }

    .advantages-title {
        font-size: 1.1rem;
    }

    .steps-grid {
        grid-template-columns: 1fr;
        max-width: 300px;
        margin: 0 auto;
    }

    .step-card {
        padding: 20px 14px;
    }

    .contact-form {
        padding: 22px 18px;
    }

    .review-card {
        padding: 24px 20px;
    }

    .portfolio,
    .steps,
    .pricing,
    .reviews,
    .contact {
        padding: 60px 0;
    }
}

/* ===== Скроллбар ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--green-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--green);
}

/* ===== Выделение текста ===== */
::selection {
    background: var(--green-light);
    color: var(--white);
}

/* ===== Страницы разделов ===== */

/* Баннер страницы */
.page-hero {
    background: var(--green-gradient);
    padding: 100px 0 60px;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.6);
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--white);
}

.page-hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    color: var(--white);
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}

.page-hero-desc {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    line-height: 1.7;
}

/* Контент страницы */
.page-content {
    padding: 70px 0;
    background: var(--white);
}

.page-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

/* Карточки товаров */
.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    border-color: var(--green-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.product-image {
    aspect-ratio: 16 / 10;
    background: var(--green-pale);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--gray-200);
}

.product-image span {
    font-size: 1rem;
    font-weight: 700;
    color: var(--green-light);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.product-info {
    padding: 28px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-info h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 14px;
}

.product-specs {
    list-style: none;
    margin-bottom: 20px;
    flex: 1;
}

.product-specs li {
    padding: 6px 0;
    font-size: 0.85rem;
    color: var(--gray-600);
    padding-left: 22px;
    position: relative;
    border-bottom: 1px solid var(--gray-100);
}

.product-specs li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--green);
    font-weight: 900;
}

.product-price {
    font-size: 1.6rem;
    font-weight: 900;
    background: var(--green-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 18px;
}

/* Информационные секции */
.info-section {
    margin-bottom: 70px;
}

.info-section:last-child {
    margin-bottom: 0;
}

/* Технологии */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.tech-card {
    background: var(--green-pale);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.tech-card:hover {
    border-color: var(--green-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.tech-icon {
    width: 64px;
    height: 64px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green);
    margin-bottom: 16px;
    box-shadow: var(--shadow-xs);
}

.tech-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 10px;
}

.tech-card p {
    font-size: 0.88rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* Таймлайн */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--green-light), var(--green-dark));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 32px;
    padding: 24px 28px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item:hover {
    border-color: var(--green-light);
    box-shadow: var(--shadow-md);
    transform: translateX(6px);
}

.timeline-marker {
    position: absolute;
    left: -48px;
    top: 28px;
    width: 30px;
    height: 30px;
    background: var(--green-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 900;
    box-shadow: 0 2px 10px rgba(29, 138, 47, 0.3);
}

.timeline-content h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 0.88rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* Фичи */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 22px;
    background: var(--green-pale);
    border-radius: var(--radius);
    transition: var(--transition);
}

.feature-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
    border: 1px solid var(--green-light);
}

.feature-icon {
    width: 32px;
    height: 32px;
    background: var(--green-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 900;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.feature-item span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-800);
}

/* CTA блок */
.cta-block {
    text-align: center;
    padding: 50px 40px;
    background: var(--green-pale);
    border-radius: var(--radius-xl);
    border: 2px solid var(--green-light);
    margin-top: 50px;
}

.cta-block h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--green-dark);
    margin-bottom: 12px;
}

.cta-block p {
    font-size: 0.95rem;
    color: var(--gray-600);
    margin-bottom: 24px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-phones {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Адаптивность страниц */
@media (max-width: 768px) {
    .page-grid {
        grid-template-columns: 1fr;
    }

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

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

    .page-hero {
        padding: 80px 0 44px;
    }

    .page-hero-title {
        font-size: 1.8rem;
    }

    .timeline {
        padding-left: 36px;
    }

    .timeline-marker {
        left: -44px;
        width: 26px;
        height: 26px;
        font-size: 0.7rem;
    }

    .cta-block {
        padding: 36px 24px;
    }

    .cta-phones {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .product-info {
        padding: 20px;
    }

    .timeline-item {
        padding: 18px 20px;
    }
}

/* ===== Каталог (бытовки и т.д.) ===== */
.catalog-page {
    padding: 100px 0 60px;
    background: var(--white);
}

.catalog-desc {
    font-size: 1rem;
    color: var(--gray-800);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 800px;
    padding: 18px 24px;
    background: var(--green-pale);
    border-left: 4px solid var(--green);
    border-radius: var(--radius);
}

/* Типы (фото + стрелка) */
.catalog-types {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 50px;
}

.catalog-type {
    text-align: center;
}

.catalog-type-image {
    aspect-ratio: 16 / 10;
    background: var(--green-pale);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.catalog-type-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.catalog-type:hover .catalog-type-image img {
    transform: scale(1.05);
}

.catalog-type-image span {
    font-size: 1rem;
    font-weight: 700;
    color: var(--green-light);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.catalog-type-arrow {
    font-size: 2rem;
    color: var(--green);
    margin-bottom: 8px;
    line-height: 1;
}

.catalog-type h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--green-dark);
}

/* Ряды карточек */
.catalog-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--gray-200);
}

.catalog-row:last-of-type {
    border-bottom: none;
}

/* Карточка */
.catalog-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
}

.catalog-card:hover {
    border-color: var(--green-light);
    box-shadow: var(--shadow-md);
}

/* Планировка */
.plan-box {
    position: relative;
    border: 2px solid var(--green);
    border-radius: 4px;
    padding: 30px 20px;
    margin: 20px 10px 30px 30px;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.plan-box--square {
    max-width: 220px;
}

/* Стек: бытовка + веранда (две рамки друг под другом) */
.plan-stack {
    position: relative;
    margin: 28px 40px 30px 30px;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.plan-stack > .plan-label-top,
.plan-stack > .plan-label-bottom {
    position: absolute;
}

.plan-stack--square {
    max-width: 240px;
}

.plan-box--main {
    margin: 0;
    border-radius: 4px 4px 0 0;
    min-height: 110px;
}

.plan-box--ver {
    margin: 0;
    border-top: none;
    border-radius: 0 0 4px 4px;
    min-height: 60px;
    background: var(--green-pale);
    padding: 16px 20px;
}

.plan-label-right {
    position: absolute;
    right: -26px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--green-dark);
}

.plan-label-top {
    position: absolute;
    top: -22px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--green-dark);
}

.plan-area {
    font-size: 0.88rem;
    color: var(--gray-800);
    text-align: center;
}

.plan-label-left {
    position: absolute;
    left: -26px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--green-dark);
}

.plan-label-bottom {
    position: absolute;
    bottom: -22px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--green-dark);
}

/* Инфо под планировкой */
.catalog-card-info {
    margin-top: 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.catalog-card-title {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--gray-800);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.btn-order-sm {
    display: inline-block;
    padding: 8px 20px;
    background: var(--green-gradient);
    color: var(--white);
    font-size: 0.78rem;
    font-weight: 700;
    border-radius: 50px;
    text-transform: lowercase;
    transition: var(--transition);
    box-shadow: var(--shadow-green);
}

.btn-order-sm:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-green-lg);
    filter: brightness(1.1);
}

/* Примечания */
.catalog-note {
    margin-top: 24px;
    padding: 16px 22px;
    border-radius: var(--radius);
    font-size: 0.88rem;
    color: var(--gray-800);
    line-height: 1.6;
}

.catalog-note a {
    color: var(--green);
    font-weight: 700;
    text-decoration: underline;
}

.catalog-note a:hover {
    color: var(--green-dark);
}

.catalog-note--green {
    background: var(--green);
    color: var(--white);
    font-weight: 600;
}

.catalog-note--green + .catalog-note {
    margin-top: 12px;
}

/* Адаптивность каталога */
@media (max-width: 768px) {
    .catalog-types {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .catalog-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .catalog-card-info {
        flex-direction: column;
        align-items: flex-start;
    }

    .plan-box--square {
        max-width: none;
    }

    .plan-stack--square {
        max-width: none;
    }
}

@media (max-width: 480px) {
    .catalog-card {
        padding: 18px 14px;
    }

    .plan-box {
        margin: 16px 8px 16px 26px;
        min-height: 110px;
    }

    .plan-box--main,
    .plan-box--ver {
        margin: 0;
    }

    .plan-stack {
        margin: 24px 34px 28px 26px;
    }
}

/* ===== Садовый дом ===== */
.sad-gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 50px;
}

.sad-photo {
    aspect-ratio: 16 / 11;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.sad-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.sad-photo:hover img {
    transform: scale(1.05);
}

/* Один вариант: схема + инфо */
.sad-product {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    padding: 36px;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    margin-bottom: 60px;
}

.sad-product-plan {
    display: flex;
    justify-content: center;
}

.plan-box--tall {
    min-height: 180px;
}

.sad-product-info h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--green-dark);
    margin-bottom: 12px;
}

.sad-area {
    font-size: 0.95rem;
    color: var(--gray-600);
    margin-bottom: 20px;
}

.sad-price-note {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 18px 22px;
    background: var(--green-pale);
    border-left: 4px solid var(--green);
    border-radius: var(--radius);
    margin-bottom: 24px;
}

.sad-price-note svg {
    color: var(--green);
    flex-shrink: 0;
    margin-top: 2px;
}

.sad-price-note span {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--green-dark);
    line-height: 1.5;
}

.btn-order-lg {
    display: inline-block;
    padding: 15px 36px;
    background: var(--green-gradient);
    color: var(--white);
    font-size: 0.92rem;
    font-weight: 700;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
    box-shadow: var(--shadow-green);
}

.btn-order-lg:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-green-lg);
    filter: brightness(1.1);
}

/* Материалы */
.sad-materials-note {
    text-align: center;
    font-size: 0.95rem;
    color: var(--gray-600);
    max-width: 640px;
    margin: -36px auto 40px;
    line-height: 1.6;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 50px;
}

.material-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: var(--transition);
}

.material-card:hover {
    border-color: var(--green-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.material-icon {
    width: 60px;
    height: 60px;
    background: var(--green-pale);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green);
    margin-bottom: 16px;
}

.material-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 14px;
}

.material-card ul {
    list-style: none;
}

.material-card li {
    font-size: 0.85rem;
    color: var(--gray-600);
    padding: 6px 0 6px 20px;
    position: relative;
    border-bottom: 1px solid var(--gray-100);
}

.material-card li:last-child {
    border-bottom: none;
}

.material-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--green);
    font-weight: 900;
    font-size: 0.8rem;
}

/* Адаптивность садового дома */
@media (max-width: 900px) {
    .materials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .sad-product {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .sad-gallery {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .materials-grid {
        grid-template-columns: 1fr;
    }

    .sad-product {
        padding: 24px 18px;
    }

    .sad-materials-note {
        margin-top: -20px;
    }
}

/* ===== Технология: вкладки ===== */
.tech-page {
    padding: 60px 0 80px;
    background: var(--white);
}

.tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 26px;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 50px;
    font-family: inherit;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
    flex: 1;
    min-width: 220px;
    justify-content: center;
}

.tab-btn:hover {
    border-color: var(--green-light);
    color: var(--green-dark);
}

.tab-btn.active {
    background: var(--green-gradient);
    border-color: transparent;
    color: var(--white);
    box-shadow: var(--shadow-green);
}

.tab-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--green-pale);
    color: var(--green-dark);
    font-size: 0.8rem;
    font-weight: 900;
    transition: var(--transition);
}

.tab-btn.active .tab-num {
    background: rgba(255, 255, 255, 0.25);
    color: var(--white);
}

/* Панели */
.tab-panel {
    display: none;
    animation: fadeInUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-title {
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 900;
    color: var(--green-dark);
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 3px solid var(--green-pale);
    position: relative;
}

.tab-title::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 80px;
    height: 3px;
    background: var(--green);
    border-radius: 2px;
}

.tab-intro {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 760px;
}

/* Параметры (spec) */
.spec-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-bottom: 40px;
}

.spec-card {
    background: var(--green-pale);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.spec-card:hover {
    border-color: var(--green-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.spec-value {
    font-size: 1.8rem;
    font-weight: 900;
    background: var(--green-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.spec-label {
    font-size: 0.82rem;
    color: var(--gray-600);
    line-height: 1.4;
}

/* Текстовый блок */
.tech-text-block {
    margin-bottom: 32px;
}

.tech-text-block h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 14px;
}

.tech-text-block p {
    font-size: 0.95rem;
    color: var(--gray-800);
    line-height: 1.8;
    margin-bottom: 14px;
}

.tech-text-block p:last-child {
    margin-bottom: 0;
}

.tech-text-block strong {
    color: var(--green-dark);
    font-weight: 700;
}

/* Выноска */
.tech-callout {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 22px 26px;
    background: var(--green-pale);
    border-left: 5px solid var(--green);
    border-radius: var(--radius);
    margin-bottom: 32px;
}

.tech-callout svg {
    color: var(--green);
    flex-shrink: 0;
    margin-top: 2px;
}

.tech-callout p {
    font-size: 0.95rem;
    color: var(--gray-800);
    line-height: 1.6;
    margin: 0;
}

.tech-callout strong {
    color: var(--green-dark);
}

.tech-callout--accent {
    background: var(--green-gradient);
    border-left-color: var(--green-dark);
}

.tech-callout--accent svg {
    color: var(--white);
}

.tech-callout--accent p {
    color: var(--white);
}

.tech-callout--accent strong {
    color: var(--white);
}

.tech-callout--accent a {
    color: var(--white);
    text-decoration: underline;
    font-weight: 700;
}

/* Пироги конструкций */
.layers-heading {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 22px;
}

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

.layer-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: var(--transition);
}

.layer-card:hover {
    border-color: var(--green-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.layer-card h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--green-pale);
}

.layer-card h4 svg {
    color: var(--green);
}

.layer-list {
    list-style: none;
    counter-reset: layer;
}

.layer-list li {
    counter-increment: layer;
    position: relative;
    padding: 10px 0 10px 36px;
    font-size: 0.88rem;
    color: var(--gray-800);
    border-bottom: 1px solid var(--gray-100);
}

.layer-list li:last-child {
    border-bottom: none;
}

.layer-list li::before {
    content: counter(layer);
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: var(--green-pale);
    color: var(--green-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 900;
}

/* Отличия (садовый дом) */
.diff-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.diff-card {
    background: var(--green-pale);
    border-radius: var(--radius-lg);
    padding: 26px 22px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.diff-card:hover {
    border-color: var(--green-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    background: var(--white);
}

.diff-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green);
    box-shadow: var(--shadow-xs);
}

.diff-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 6px;
}

.diff-card p {
    font-size: 0.82rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* Доп. опции */
.options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.option-card {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 20px 24px;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.option-card:hover {
    border-color: var(--green-light);
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
}

.option-num {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    background: var(--green-gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 900;
    box-shadow: var(--shadow-green);
}

.option-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.option-text strong {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--gray-900);
}

.option-text span {
    font-size: 0.8rem;
    color: var(--gray-600);
}

/* Адаптивность вкладок */
@media (max-width: 900px) {
    .spec-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

    .tab-btn {
        min-width: 0;
        flex: 1 1 100%;
    }
}

@media (max-width: 560px) {
    .spec-grid {
        grid-template-columns: 1fr;
    }

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

    .tab-btn {
        padding: 14px 20px;
        font-size: 0.85rem;
    }
}