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

:root {
    --green-dark: #4A6B5D;
    --green-darker: #3D5A4D;
    --green-light: #B5C5BA;
    --green-lighter: #D4DED7;
    --green-sage: #B8C9C0;
    --white: #FFFFFF;
    --off-white: #F5F5F5;
    --text-dark: #2C2C2C;
    --text-body: #444444;
    --font: 'Montserrat', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    color: var(--text-body);
    line-height: 1.7;
    background: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

ul {
    list-style: none;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font);
    font-size: 15px;
    font-weight: 500;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn--primary {
    background: var(--green-dark);
    color: var(--white);
}

.btn--primary:hover {
    background: var(--green-darker);
}

.btn--full {
    width: 100%;
}

.section-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--green-dark);
    margin-bottom: 40px;
    line-height: 1.3;
}

.section-title--center {
    text-align: center;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(74, 107, 93, 0.95);
    backdrop-filter: blur(10px);
    padding: 0;
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo__text {
    font-size: 24px;
    font-weight: 300;
    color: var(--white);
    letter-spacing: 1px;
}

.logo__text--footer {
    font-size: 28px;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav__link {
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    font-weight: 400;
    transition: color 0.3s;
}

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

.header__phone {
    color: var(--white);
    font-size: 15px;
    font-weight: 500;
}

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.burger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s;
}

/* Hero */
.hero {
    padding-top: 72px;
    background: var(--green-dark);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 80px 0;
}

.hero__title {
    font-size: 64px;
    font-weight: 300;
    color: var(--white);
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.hero__line {
    width: 80px;
    height: 2px;
    background: var(--white);
    margin-bottom: 24px;
}

.hero__subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
    font-weight: 300;
}

.hero__desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 40px;
    max-width: 480px;
    line-height: 1.8;
}

.hero__image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

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

/* About */
.about {
    padding: 100px 0;
    background: var(--green-sage);
}

.about__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about__image {
    border-radius: 8px;
    overflow: hidden;
}

.about__image img {
    width: 100%;
}

.about__content p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-dark);
}

.about__director {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(74, 107, 93, 0.3);
}

/* Services */
.services {
    padding: 100px 0;
    background: var(--off-white);
}

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

.service-card {
    background: var(--green-sage);
    border-radius: 8px;
    padding: 36px 28px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(74, 107, 93, 0.15);
}

.service-card__title {
    font-size: 20px;
    font-weight: 600;
    color: var(--green-dark);
    margin-bottom: 20px;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.service-card__list li {
    padding: 6px 0;
    font-size: 15px;
    color: var(--text-dark);
    position: relative;
    padding-left: 16px;
}

.service-card__list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--green-dark);
}

/* Portfolio */
.portfolio {
    padding: 100px 0;
    background: var(--white);
}

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

.portfolio__item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 4/3;
}

.portfolio__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.portfolio__item:hover img {
    transform: scale(1.05);
}

.portfolio__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(74, 107, 93, 0.8) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 24px;
    opacity: 0;
    transition: opacity 0.3s;
}

.portfolio__item:hover .portfolio__overlay {
    opacity: 1;
}

.portfolio__label {
    color: var(--white);
    font-size: 18px;
    font-weight: 500;
}

/* Advantages */
.advantages {
    padding: 100px 0;
    background: var(--green-dark);
}

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

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

.advantage-card {
    background: var(--green-sage);
    border-radius: 8px;
    padding: 32px 24px;
    text-align: center;
}

.advantage-card__title {
    font-size: 17px;
    font-weight: 600;
    color: var(--green-dark);
    margin-bottom: 16px;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.advantage-card__list li {
    font-size: 14px;
    color: var(--text-dark);
    padding: 6px 0;
    line-height: 1.6;
}

/* Stages */
.stages {
    padding: 100px 0;
    background: var(--off-white);
}

.stages__grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
}

.stage {
    text-align: center;
    position: relative;
}

.stage__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--green-dark);
    color: var(--white);
    font-size: 18px;
    font-weight: 600;
    border-radius: 50%;
    margin-bottom: 16px;
}

.stage__title {
    font-size: 16px;
    font-weight: 600;
    color: var(--green-dark);
    margin-bottom: 8px;
}

.stage__desc {
    font-size: 13px;
    color: var(--text-body);
    line-height: 1.5;
}

/* Contact */
.contact {
    padding: 100px 0;
    background: var(--white);
}

.contact__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact__info p {
    font-size: 16px;
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.contact__label {
    font-size: 13px;
    color: var(--green-dark);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact__value {
    font-size: 17px;
    color: var(--text-dark);
    font-weight: 500;
}

.contact__value:hover {
    color: var(--green-dark);
}

.contact__form {
    background: var(--green-lighter);
    border-radius: 12px;
    padding: 40px;
}

.contact__form-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--green-dark);
    margin-bottom: 28px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font);
    font-size: 15px;
    border: 1px solid rgba(74, 107, 93, 0.2);
    border-radius: 6px;
    background: var(--white);
    color: var(--text-dark);
    transition: border-color 0.3s;
}

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

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

.form-note {
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-body);
    opacity: 0.7;
    text-align: center;
}

/* Footer */
.footer {
    background: var(--green-darker);
    color: var(--white);
    padding-top: 60px;
}

.footer__inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer__tagline {
    margin-top: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

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

.footer__contacts a {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
}

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

.footer__legal p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
}

.footer__bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero__inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    .hero__desc {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }
    .hero__line {
        margin-left: auto;
        margin-right: auto;
    }
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .advantages__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stages__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--green-dark);
        flex-direction: column;
        align-items: center;
        gap: 0;
        padding: 20px 0;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s;
    }
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    .nav__link {
        padding: 12px 0;
    }
    .burger {
        display: flex;
    }
    .header__phone {
        display: none;
    }
    .hero__title {
        font-size: 40px;
    }
    .about__inner {
        grid-template-columns: 1fr;
    }
    .services__grid {
        grid-template-columns: 1fr;
    }
    .portfolio__grid {
        grid-template-columns: 1fr;
    }
    .advantages__grid {
        grid-template-columns: 1fr;
    }
    .stages__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact__inner {
        grid-template-columns: 1fr;
    }
    .footer__inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer__contacts {
        align-items: center;
    }
    .section-title {
        font-size: 26px;
    }
}