/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
    /* Цветовая палитра — природные оттенки */
    --color-green-deep: #2C5530;
    --color-green-light: #4A7C59;
    --color-green-dark: #1E3D21;
    --color-graphite: #333333;
    --color-beige: #F5F0E8;
    --color-beige-dark: #E8E0D4;
    --color-wood: #8B6914;
    --color-wood-light: #C4A35A;
    --color-white: #FFFFFF;
    --color-gray-light: #E8E4DD;
    --color-gray: #999999;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-error: #D32F2F;
    --color-success: #388E3C;

    /* Типографика */
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 16px;
    --font-size-h1: clamp(2rem, 5vw, 3.5rem);
    --font-size-h2: clamp(1.5rem, 4vw, 2.5rem);
    --font-size-h3: clamp(1.1rem, 2.5vw, 1.5rem);
    --font-size-small: 0.875rem;

    /* Отступы */
    --container-max: 1200px;
    --spacing-section: 80px;
    --spacing-section-sm: 50px;
    --spacing-gutter: 24px;

    /* Скругления */
    --border-radius: 8px;
    --border-radius-lg: 12px;

    /* Тени */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);

    /* Переходы */
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-main);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 16px;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
.section-title {
    font-size: var(--font-size-h2);
    font-weight: 700;
    color: var(--color-green-deep);
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    text-align: center;
    margin-bottom: 48px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: all var(--transition);
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-green-deep);
    color: var(--color-white);
    border: 2px solid var(--color-green-deep);
}

.btn-primary:hover {
    background-color: var(--color-green-dark);
    border-color: var(--color-green-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-green-deep);
    border: 2px solid var(--color-green-deep);
}

.btn-outline:hover {
    background-color: var(--color-green-deep);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    padding-top: 20px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 110px;
    height: 110px;
    margin-top: 60px;
    background-color: var(--color-white);
    box-shadow: var(--shadow-md);
    border-radius: 50%;
    z-index: 10;
}

.logo img {
    width: 100px;
    height: 100px;
    object-fit: contain;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.main-nav a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition);
    position: relative;
}

.main-nav a:hover {
    color: var(--color-green-deep);
}

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

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

.header-phone {
    font-weight: 700 !important;
    color: var(--color-green-deep) !important;
    font-size: 1rem !important;
}

.header-phone::after {
    display: none !important;
}

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-graphite);
    transition: all var(--transition);
}

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

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

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

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    padding: 120px 0 80px;
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(4px);
    z-index: 0;
}

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

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-content h1 {
    font-size: var(--font-size-h1);
    font-weight: 800;
    color: var(--color-graphite);
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-utp {
    font-size: 1.15rem;
    color: var(--color-text-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.hero-phone {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-phone a {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-green-deep);
    transition: color var(--transition);
}

.hero-phone a:hover {
    color: var(--color-green-light);
}

.hero-phone span {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.hero-image {
    position: relative;
    width: 100%;
    height: 350px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.hero-slider {
    width: 100%;
    height: 100%;
    position: relative;
}

.hero-slider-track {
    display: flex;
    height: 100%;
    transition: transform 0.5s ease;
}

.hero-slide {
    min-width: 100%;
    height: 100%;
}

.hero-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
    z-index: 2;
    border: none;
    color: var(--color-green-deep);
}

.hero-slider-btn:hover {
    background-color: var(--color-green-deep);
    color: var(--color-white);
}

.hero-slider-prev {
    left: 16px;
}

.hero-slider-next {
    right: 16px;
}

.hero-slider-btn svg {
    width: 24px;
    height: 24px;
}

.hero-slider-dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 2;
}

.hero-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all var(--transition);
    padding: 0;
}

.hero-dot.active {
    background-color: var(--color-green-deep);
    border-color: var(--color-green-deep);
    transform: scale(1.2);
}

.hero-dot:hover {
    background-color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--spacing-section) 0;
    background-color: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-text p {
    margin-bottom: 16px;
    font-size: 1.05rem;
    color: var(--color-text-light);
}

.about-stats {
    display: flex;
    gap: 32px;
    margin-top: 32px;
}

.stat {
    display: flex;
    /*flex-direction: column;*/
    align-items: center;
    justify-content: center;
    gap: 12px;
    text-align: center;
}

.stat-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-green-deep);
}

.stat-icon svg {
    width: 100%;
    height: 100%;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-green-deep);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.about-image img,
.about-image iframe {
    width: 100%;
    height: 350px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: none;
}

/* ============================================
   PORTFOLIO SECTION
   ============================================ */
.portfolio {
    padding: var(--spacing-section) 0;
    background-color: var(--color-beige);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 50px;
    background-color: var(--color-white);
    color: var(--color-text);
    border: 2px solid transparent;
    transition: all var(--transition);
}

.filter-btn:hover {
    border-color: var(--color-green-deep);
    color: var(--color-green-deep);
}

.filter-btn.active {
    background-color: var(--color-green-deep);
    color: var(--color-white);
    border-color: var(--color-green-deep);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
}

.portfolio-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.portfolio-card.hidden {
    display: none;
}

.portfolio-image img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.portfolio-info {
    padding: 20px 24px;
}

.portfolio-category {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-green-light);
    margin-bottom: 8px;
}

.portfolio-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-graphite);
    margin-bottom: 8px;
}

.portfolio-info p {
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.cta-block {
    text-align: center;
    margin-top: 48px;
    padding: 32px;
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
}

.cta-block p {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-graphite);
    margin-bottom: 16px;
}

.no-projects,
.no-reviews {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 24px;
}

.no-projects p,
.no-reviews p {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: 16px;
}

/* ============================================
   STAGES SECTION
   ============================================ */
.stages {
    padding: var(--spacing-section) 0;
    background-color: var(--color-white);
}

.stages-timeline {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 40px;
    position: relative;
}

.stage-item {
    flex: 1;
    text-align: center;
    padding: 24px 16px;
    background-color: var(--color-beige);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition);
}

.stage-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stage-icon img {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
}

.stage-item h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-green-deep);
    margin-bottom: 12px;
}

.stage-item p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 12px;
    line-height: 1.5;
}

.stage-deadline {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-wood);
    background-color: rgba(139, 105, 20, 0.1);
    padding: 4px 12px;
    border-radius: 50px;
}

.stages-total {
    text-align: center;
    padding: 24px;
    background-color: var(--color-green-deep);
    color: var(--color-white);
    border-radius: var(--border-radius-lg);
    font-size: 1.1rem;
}

/* ============================================
   CALCULATOR SECTION
   ============================================ */
.calculator {
    padding: var(--spacing-section) 0;
    background-color: var(--color-beige);
}

.calculator-form {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.calc-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.calc-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.calc-group label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-graphite);
}

.calc-group input,
.calc-group select {
    padding: 12px 16px;
    border: 2px solid var(--color-gray-light);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color var(--transition);
    background-color: var(--color-white);
}

.calc-group input:focus,
.calc-group select:focus {
    outline: none;
    border-color: var(--color-green-deep);
}

.calc-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 32px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--color-text);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-green-deep);
    cursor: pointer;
}

.calc-result {
    text-align: center;
    padding: 24px;
    background-color: var(--color-beige);
    border-radius: var(--border-radius);
    margin-bottom: 24px;
}

.calc-result p {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.calc-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-green-deep);
}

/* ============================================
   REVIEWS SECTION
   ============================================ */
.reviews {
    padding: var(--spacing-section) 0;
    background-color: var(--color-white);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
}

.review-card {
    background-color: var(--color-beige);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    display: flex;
    gap: 20px;
    transition: all var(--transition);
}

.review-card:hover {
    box-shadow: var(--shadow-md);
}

.review-photo {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
}

.review-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.review-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--color-green-deep);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.review-content {
    flex: 1;
}

.review-text {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 12px;
    font-style: italic;
}

.review-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.review-meta strong {
    font-size: 0.95rem;
    color: var(--color-graphite);
}

.review-meta span {
    font-size: 0.85rem;
    color: var(--color-gray);
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq {
    padding: var(--spacing-section) 0;
    background-color: var(--color-beige);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 12px;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-graphite);
    text-align: left;
    transition: all var(--transition);
}

.faq-question:hover {
    background-color: var(--color-green-deep);
    color: var(--color-white);
}

.faq-question[aria-expanded="true"] {
    background-color: var(--color-green-deep);
    color: var(--color-white);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform var(--transition);
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition), padding var(--transition);
    background-color: var(--color-white);
    padding: 0 24px;
}

.faq-answer.open {
    max-height: 300px;
    padding: 20px 24px;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.faq-answer p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   MODAL
   ============================================ */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    background-color: rgba(0, 0, 0, 0.6);
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.modal {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    max-width: 480px;
    width: 100%;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 1.8rem;
    color: var(--color-gray);
    line-height: 1;
    transition: color var(--transition);
}

.modal-close:hover {
    color: var(--color-graphite);
}

.modal h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-green-deep);
    margin-bottom: 8px;
}

#modal-subtitle {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--color-gray-light);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-green-deep);
}

.form-privacy {
    font-size: 0.8rem;
    color: var(--color-gray);
    text-align: center;
    margin-top: 12px;
}

.form-success {
    text-align: center;
    padding: 24px;
}

.form-success p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-success);
}

/* Privacy Policy Modal */
.modal-lg {
    max-width: 800px;
    max-height: 85vh;
    overflow-y: auto;
}

.privacy-content {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--color-text-light);
    max-height: 70vh;
    overflow-y: auto;
    padding-right: 16px;
}

.privacy-content p {
    margin-bottom: 16px;
}

.privacy-content h1,
.privacy-content h2,
.privacy-content h3 {
    color: var(--color-green-deep);
    margin-top: 24px;
    margin-bottom: 12px;
}

.privacy-link {
    color: var(--color-green-deep);
    text-decoration: underline;
    font-weight: 500;
}

.privacy-link:hover {
    color: var(--color-green-light);
}

.footer-bottom-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.privacy-footer-link {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: underline;
    transition: color var(--transition);
}

.privacy-footer-link:hover {
    color: var(--color-white);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background-color: var(--color-graphite);
    color: var(--color-white);
    padding: 48px 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    padding-bottom: 40px;
}

.footer-col h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-white);
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-wood-light);
}

.footer-col p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
    line-height: 1.5;
}

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

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

.messengers,
.socials {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   RESPONSIVE — TABLET (≤ 768px)
   ============================================ */
@media (max-width: 768px) {
    :root {
        --spacing-section: 50px;
    }

    /* Header */
    .site-header {
        padding-bottom: 0;
    }

    .header-inner {
        padding-top: 16px;
    }

    .logo {
        width: 70px;
        height: 70px;
        margin-top: 5px;
    }

    .logo img {
        width: 52px;
        height: 52px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: 24px 16px;
        gap: 16px;
        box-shadow: var(--shadow-md);
        transform: translateY(-120%);
        transition: transform var(--transition);
    }

    .main-nav.open {
        transform: translateY(0);
    }

    .main-nav a {
        font-size: 1.1rem;
        width: 100%;
        padding: 8px 0;
    }

    /* Hero */
    .hero {
        padding: 100px 0 50px;
        min-height: auto;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-image {
        order: -1;
    }

    .hero-image img {
        /*height: 250px;*/
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    /* About */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .about-stats {
        gap: 20px;
    }

    .about-image iframe {
        height: 300px;
    }

    .stat-number {
        font-size: 2rem;
    }

    /* Portfolio */
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    /* Stages */
    .stages-timeline {
        flex-direction: column;
    }

    /* Calculator */
    .calc-row {
        grid-template-columns: 1fr;
    }

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

    /* Reviews */
    .reviews-grid {
        grid-template-columns: 1fr;
    }

    /* Footer */
    .footer-inner {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .modal {
        padding: 24px;
    }
}

/* ============================================
   RESPONSIVE — MOBILE (≤ 480px)
   ============================================ */
@media (max-width: 480px) {
    .about-stats {
        flex-direction: column;
        gap: 16px;
    }

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

    .portfolio-filters {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-btn {
        text-align: center;
    }

    .calculator-form {
        padding: 24px;
    }

    .calc-price {
        font-size: 1.5rem;
    }
}