:root {
    --primary-dark: #0f291e;
    --primary-green: #3f7826;
    --green-hover: #315f1d;
    --light-background: #f4f7f6;
    --navigation-background: #ffffff;
    --card-background: #ffffff;
    --footer-background: #08140f;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #ffffff;
    --border-light: #e8ece9;
    --project-frame: #9fb1a4;
    --shadow-small: 0 5px 15px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 10px 25px rgba(0, 0, 0, 0.08);
    --shadow-large: 0 16px 35px rgba(0, 0, 0, 0.13);
    --page-padding: 5%;
    --section-spacing: 56px;
    --border-radius: 12px;
    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 150px;
}

body {
    min-width: 320px;
    overflow-x: hidden;
    color: var(--text-primary);
    background: var(--light-background);
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

.skip-link {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 2000;
    padding: 10px 16px;
    color: var(--text-light);
    background: var(--primary-dark);
    border-radius: 6px;
    text-decoration: none;
    transform: translateY(-150%);
    transition: transform var(--transition);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    min-height: 115px;
    padding: 6px var(--page-padding);
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(12px);
}

.logo-link {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    gap: 0;
    width: min(360px, 38vw);
    padding: 4px;
    border-radius: 8px;
    text-align: center;
    text-decoration: none;
}

.site-logo {
    width: clamp(96px, 9vw, 120px);
    height: auto;
    margin-bottom: -28px;
    object-fit: contain;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1)) contrast(1.05);
    transition: transform var(--transition);
}

.logo-copy {
    display: flex;
    width: 100%;
    flex-direction: column;
    align-items: center;
    color: var(--primary-dark);
    line-height: 1;
}

.logo-name {
    font-size: clamp(1.15rem, 1.65vw, 1.55rem);
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    white-space: nowrap;
}

.logo-tagline {
    margin-top: 5px;
    font-size: clamp(0.6rem, 0.72vw, 0.72rem);
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    white-space: nowrap;
}

.logo-link:hover .site-logo {
    transform: scale(1.03);
}

.nav-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-left: auto;
    list-style: none;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 11px 24px;
    color: var(--primary-dark);
    background: #f3f6f4;
    border: 2px solid transparent;
    border-radius: 999px;
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    transition:
        color var(--transition),
        background var(--transition),
        border-color var(--transition),
        box-shadow var(--transition),
        transform var(--transition);
}

.nav-link:hover,
.nav-link:focus-visible {
    color: var(--text-light);
    background: var(--primary-green);
    box-shadow: 0 8px 20px rgba(92, 158, 49, 0.25);
    transform: translateY(-2px);
}

.nav-link.active {
    color: var(--text-light);
    background: var(--primary-green);
    box-shadow: 0 6px 18px rgba(92, 158, 49, 0.3);
}

.logo-link:focus-visible,
.nav-link:focus-visible,
.button:focus-visible,
.contact-info a:focus-visible,
.site-credit a:focus-visible {
    outline: 3px solid var(--primary-dark);
    outline-offset: 4px;
    box-shadow: 0 0 0 7px var(--text-light);
}

.page-section {
    scroll-margin-top: 150px;
}

.hero {
    position: relative;
    isolation: isolate;
    display: grid;
    min-height: 470px;
    overflow: hidden;
    padding: 70px 20px;
    place-items: center;
    color: var(--text-light);
    text-align: center;
    background: linear-gradient(135deg, #0b2419, #245c38);
}

.hero::before,
.hero::after {
    position: absolute;
    inset: 0;
    content: "";
}

.hero::before {
    z-index: -2;
    background: url("../assets/hero-construction.jpg") center / cover no-repeat;
    filter: saturate(0.7) contrast(1.08);
    opacity: 0.34;
}

.hero::after {
    z-index: -1;
    background: linear-gradient(
        115deg,
        rgba(5, 30, 19, 0.8),
        rgba(34, 108, 55, 0.48)
    );
}

.hero-content {
    width: min(900px, 100%);
}

.hero-label {
    margin-bottom: 8px;
    color: #a5d983;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.hero h1 {
    margin-bottom: 14px;
    font-size: clamp(2.4rem, 6vw, 3.8rem);
    line-height: 1.1;
    letter-spacing: 0.02em;
    text-shadow: 0 3px 18px rgba(0, 0, 0, 0.5);
}

.hero-description {
    max-width: 820px;
    margin: 0 auto 28px;
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 300;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.75);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 12px 30px;
    color: var(--text-light);
    background: var(--primary-green);
    border: 2px solid var(--primary-green);
    border-radius: 999px;
    box-shadow: 0 4px 12px rgba(92, 158, 49, 0.3);
    font-weight: 700;
    text-decoration: none;
    transition:
        background var(--transition),
        border-color var(--transition),
        box-shadow var(--transition),
        transform var(--transition);
}

.button:hover {
    background: var(--green-hover);
    border-color: var(--green-hover);
    box-shadow: 0 8px 18px rgba(92, 158, 49, 0.4);
    transform: translateY(-2px);
}

.services-section,
.projects-section,
.testimonials-section,
.contact-section {
    padding: var(--section-spacing) var(--page-padding);
}

.projects-section {
    background: #eef3f0;
}

.section-container {
    width: min(1400px, 100%);
    margin: 0 auto;
}

.section-title {
    position: relative;
    margin-bottom: 32px;
    color: var(--primary-dark);
    font-size: clamp(1.9rem, 4vw, 2.6rem);
    line-height: 1.2;
    text-align: center;
}

.section-title::after {
    display: block;
    width: 60px;
    height: 4px;
    margin: 14px auto 0;
    background: var(--primary-green);
    border-radius: 2px;
    content: "";
}

.grid {
    display: grid;
    gap: 26px;
}

.grid > * {
    min-width: 0;
}

.grid h3,
.grid p {
    overflow-wrap: anywhere;
}

.services-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.testimonials-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-card {
    display: flex;
    min-height: 230px;
    flex-direction: column;
    justify-content: center;
    padding: 34px 26px;
    text-align: center;
    background: var(--card-background);
    border-top: 5px solid var(--primary-dark);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-small);
    transition:
        border-color var(--transition),
        box-shadow var(--transition),
        transform var(--transition);
}

.service-card:hover {
    border-top-color: var(--primary-green);
    box-shadow: var(--shadow-medium);
    transform: translateY(-5px);
}

.service-card h3 {
    margin-bottom: 12px;
    color: var(--primary-dark);
    font-size: 1.3rem;
    line-height: 1.3;
}

.service-card p {
    color: var(--text-secondary);
}

.project-card {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.8fr);
    scroll-margin-top: 140px;
    min-width: 0;
    overflow: hidden;
    align-items: stretch;
    background: var(--card-background);
    border: 1px solid var(--project-frame);
    border-radius: 8px;
    box-shadow: var(--shadow-medium);
    transition:
        box-shadow var(--transition),
        transform var(--transition);
}

.project-card:hover {
    box-shadow: var(--shadow-large);
    transform: translateY(-7px);
}

.project-gallery {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 4px;
    height: 390px;
    overflow: hidden;
    padding: 4px;
    background: var(--project-frame);
}

.project-photo {
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    background: var(--project-frame);
    cursor: zoom-in;
}

.project-photo:focus-visible {
    position: relative;
    z-index: 1;
    outline: 3px solid var(--text-light);
    outline-offset: -5px;
}

.project-photo-featured {
    grid-row: span 2;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transform: scale(1.04);
    transition: transform var(--transition), filter var(--transition);
}

.project-photo:hover .project-image {
    filter: brightness(1.04);
    transform: scale(1.07);
}

.project-content {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 12px;
    min-width: 0;
    padding: 32px;
}

.project-content h3 {
    color: var(--primary-dark);
    font-size: 1.35rem;
    line-height: 1.3;
}

.project-content p {
    color: var(--text-secondary);
    font-size: 0.97rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    justify-content: center;
    min-height: 42px;
    margin-top: 6px;
    padding: 10px 18px;
    color: var(--text-light);
    background: var(--primary-green);
    border-radius: 999px;
    font-size: 0.92rem;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    transition:
        background var(--transition),
        box-shadow var(--transition),
        transform var(--transition);
}

.project-link:hover,
.project-link:focus-visible {
    background: var(--green-hover);
    box-shadow: 0 8px 18px rgba(63, 120, 38, 0.22);
    transform: translateY(-2px);
}

body.lightbox-open {
    overflow: hidden;
}

.project-lightbox {
    width: min(94vw, 1200px);
    max-width: none;
    max-height: 94vh;
    margin: auto;
    overflow: hidden;
    padding: 0;
    color: var(--text-light);
    background: var(--footer-background);
    border: 1px solid var(--project-frame);
    border-radius: 8px;
    box-shadow: var(--shadow-large);
}

.project-lightbox::backdrop {
    background: rgba(3, 10, 7, 0.88);
}

.lightbox-stage {
    position: relative;
    display: grid;
    place-items: center;
    min-height: min(84vh, 820px);
    padding: 48px 70px 24px;
}

.lightbox-figure {
    display: grid;
    place-items: center;
    gap: 12px;
    width: 100%;
    height: 100%;
    margin: 0;
}

.lightbox-image {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 74vh;
    object-fit: contain;
}

.lightbox-caption {
    min-height: 24px;
    color: var(--text-light);
    font-size: 0.95rem;
    text-align: center;
}

.lightbox-control {
    position: absolute;
    z-index: 2;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    padding: 0;
    color: var(--text-light);
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.32);
    border-radius: 50%;
    cursor: pointer;
    font-family: Arial, sans-serif;
    font-size: 2rem;
    line-height: 1;
}

.lightbox-control:hover,
.lightbox-control:focus-visible {
    background: var(--primary-green);
    outline: 2px solid var(--text-light);
    outline-offset: 2px;
}

.lightbox-close {
    top: 14px;
    right: 14px;
    font-size: 1.6rem;
}

.lightbox-previous,
.lightbox-next {
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-previous {
    left: 14px;
}

.lightbox-next {
    right: 14px;
}

.testimonials-section {
    color: var(--text-light);
    background: var(--primary-dark);
}

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

.testimonial-card {
    display: flex;
    min-height: 270px;
    flex-direction: column;
    justify-content: space-between;
    padding: 32px;
    background: rgba(255, 255, 255, 0.06);
    border-left: 4px solid var(--primary-green);
    border-radius: var(--border-radius);
}

.testimonial-card blockquote {
    margin: 0;
}

.testimonial-card blockquote p {
    font-size: 1.05rem;
    font-style: italic;
}

.testimonial-card figcaption {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-top: 22px;
}

.testimonial-card strong {
    color: #8eca67;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.testimonial-card span {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.contact-section {
    text-align: center;
    background: var(--navigation-background);
}

.contact-container {
    max-width: 800px;
}

.contact-tagline {
    margin-bottom: 24px;
    color: var(--primary-green);
    font-size: clamp(1.25rem, 3vw, 1.55rem);
    font-style: italic;
}

.contact-info {
    display: grid;
    gap: 10px;
    margin-bottom: 28px;
    font-size: 1.1rem;
    font-style: normal;
}

.contact-info p {
    overflow-wrap: anywhere;
}

.contact-info a {
    color: var(--primary-dark);
    font-weight: 600;
    text-decoration: none;
    text-underline-offset: 4px;
}

.contact-info a:hover {
    color: var(--primary-green);
    text-decoration: underline;
}

.contact-section .button {
    max-width: 100%;
    padding-inline: min(30px, 7vw);
}

.site-footer {
    padding: 26px 20px;
    color: rgba(255, 255, 255, 0.75);
    background: var(--footer-background);
    font-size: 0.9rem;
    text-align: center;
}

.site-credit {
    margin-top: 5px;
    font-size: 0.82rem;
}

.site-credit a {
    color: var(--text-light);
    font-weight: 700;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.site-credit a:hover {
    color: #a5d983;
}

@media (max-width: 1100px) {
    .services-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .project-card {
        grid-template-columns: 1fr;
    }

    .project-gallery {
        height: 340px;
    }

    .site-nav {
        gap: 20px;
    }

    .logo-link {
        width: min(330px, 36vw);
    }

    .nav-links {
        gap: 9px;
    }

    .nav-link {
        padding: 10px 18px;
        font-size: 1rem;
    }
}

@media (max-width: 850px) {
    html {
        scroll-padding-top: 205px;
    }

    .page-section,
    .project-card {
        scroll-margin-top: 205px;
    }

    .site-nav {
        min-height: auto;
        flex-direction: column;
        gap: 10px;
        padding-top: 8px;
        padding-bottom: 12px;
    }

    .logo-link {
        width: min(330px, 88vw);
    }

    .site-logo {
        width: 105px;
        margin-bottom: -25px;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
        overflow-x: auto;
        padding-bottom: 3px;
        scrollbar-width: none;
    }

    .nav-links::-webkit-scrollbar {
        display: none;
    }

    .nav-link {
        white-space: nowrap;
    }

    .hero {
        min-height: 420px;
        padding: 60px 18px;
    }

    .services-section,
    .projects-section,
    .testimonials-section,
    .contact-section {
        padding: 46px var(--page-padding);
    }

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

    .testimonial-card {
        min-height: auto;
    }
}

@media (max-width: 600px) {
    :root {
        --page-padding: 18px;
        --section-spacing: 42px;
    }

    html {
        scroll-padding-top: 185px;
    }

    .page-section,
    .project-card {
        scroll-margin-top: 185px;
    }

    .logo-link {
        width: min(310px, 100%);
    }

    .site-logo {
        width: 88px;
        margin-bottom: -21px;
    }

    .logo-name {
        font-size: clamp(0.9rem, 4.7vw, 1.08rem);
        letter-spacing: 0.14em;
    }

    .logo-tagline {
        font-size: clamp(0.48rem, 2.15vw, 0.58rem);
        letter-spacing: 0.08em;
    }

    .nav-links {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 4px;
        overflow: visible;
        padding-bottom: 0;
    }

    .nav-links li {
        min-width: 0;
    }

    .nav-link {
        width: 100%;
        min-height: 44px;
        padding: 9px 3px;
        font-size: clamp(0.72rem, 3.7vw, 0.9rem);
    }

    .hero {
        min-height: 390px;
        padding: 50px 18px;
    }

    .hero h1 {
        font-size: clamp(2rem, 8vw, 2.25rem);
    }

    .hero-description {
        margin-bottom: 24px;
    }

    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        margin-bottom: 26px;
    }

    .project-gallery {
        height: 216px;
    }

    .project-content {
        padding: 26px 22px;
    }

    .project-lightbox {
        width: 96vw;
        max-height: 92vh;
    }

    .lightbox-stage {
        min-height: 76vh;
        padding: 56px 12px 72px;
    }

    .lightbox-image {
        max-height: 66vh;
    }

    .lightbox-previous,
    .lightbox-next {
        top: auto;
        bottom: 14px;
        transform: none;
    }

    .lightbox-previous {
        left: calc(50% - 54px);
    }

    .lightbox-next {
        right: calc(50% - 54px);
    }

    .service-card {
        min-height: 0;
        padding: 30px 22px;
    }

    .testimonial-card {
        padding: 26px 22px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}