:root {
    --bg: #f3f5f8;
    --surface: rgba(255, 255, 255, 0.86);
    --surface-strong: #ffffff;
    --text: #142235;
    --muted: #5b6778;
    --primary: #17365d;
    --primary-deep: #0d223d;
    --line: rgba(20, 34, 53, 0.1);
    --shadow: 0 22px 60px rgba(13, 34, 61, 0.12);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --container: min(1120px, calc(100% - 48px));
    --header-height: 86px;
    --transition: 220ms ease;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Manrope", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(23, 54, 93, 0.12), transparent 34%),
        linear-gradient(180deg, #f9fbfd 0%, var(--bg) 100%);
    color: var(--text);
}

body.menu-open {
    overflow: hidden;
}

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

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

button,
input,
textarea {
    font: inherit;
}

.container {
    width: var(--container);
    margin: 0 auto;
}

.section {
    padding: 104px 0;
}

.eyebrow {
    margin: 0 0 14px;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #3f5d85;
}

.section-heading {
    max-width: 680px;
    margin-bottom: 42px;
}

.section-heading-center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section-heading h2,
.cta-box h2,
.hero h1 {
    margin: 0;
    font-family: "Fraunces", serif;
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.03em;
}

.section-heading h2,
.cta-box h2 {
    font-size: clamp(2rem, 4vw, 3.2rem);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(18px);
    background: rgba(249, 251, 253, 0.76);
    border-bottom: 1px solid rgba(20, 34, 53, 0.08);
}

.header-inner {
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.brand-mark {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary) 0%, #355985 100%);
    color: #fff;
    box-shadow: 0 12px 30px rgba(23, 54, 93, 0.25);
}

.brand-text {
    font-size: 1.04rem;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.site-nav a {
    position: relative;
    font-weight: 600;
    color: var(--muted);
    transition: color var(--transition);
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 100%;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition);
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--text);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
    transform: scaleX(1);
}

.menu-toggle {
    display: none;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 1px solid rgba(20, 34, 53, 0.12);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.72);
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 5px auto;
    background: var(--text);
    transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.hero {
    position: relative;
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    overflow: hidden;
    background:
        linear-gradient(110deg, rgba(10, 24, 41, 0.82), rgba(10, 24, 41, 0.4)),
        url("./photo-1504307651254-35680f356dfd.jpg") center/cover no-repeat;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.15), transparent 0 36%),
        linear-gradient(180deg, rgba(12, 24, 38, 0.12), rgba(12, 24, 38, 0.2));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
    padding: 70px 0;
    color: #fff;
}

.hero .eyebrow {
    color: rgba(255, 255, 255, 0.76);
}

.hero h1 {
    font-size: clamp(3.2rem, 8vw, 5.8rem);
}

.hero-text {
    max-width: 580px;
    margin: 20px 0 0;
    font-size: clamp(1.08rem, 2.2vw, 1.35rem);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.84);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
    padding: 0 26px;
    border-radius: 999px;
    font-weight: 700;
    transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.button:hover,
.button:focus-visible {
    transform: translateY(-2px);
}

.button-primary {
    margin-top: 34px;
    background: #fff;
    color: var(--primary-deep);
    box-shadow: 0 18px 40px rgba(8, 20, 33, 0.28);
}

.button-primary:hover,
.button-primary:focus-visible {
    background: #f0f4f8;
}

.about {
    position: relative;
}

.section-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 56px;
    align-items: start;
}

.about-copy {
    padding: 36px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.about-copy p {
    margin: 0;
    color: var(--muted);
    line-height: 1.9;
}

.about-copy p + p {
    margin-top: 18px;
}

.services-grid,
.projects-grid {
    display: grid;
    gap: 24px;
}

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

.service-card {
    padding: 30px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(23, 54, 93, 0.08);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 18px 35px rgba(20, 34, 53, 0.08);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover,
.service-card:focus-within {
    transform: translateY(-6px);
    box-shadow: 0 26px 45px rgba(20, 34, 53, 0.12);
    border-color: rgba(23, 54, 93, 0.18);
}

.service-icon {
    width: 58px;
    height: 58px;
    display: grid;
    place-items: center;
    margin-bottom: 22px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(23, 54, 93, 0.12), rgba(23, 54, 93, 0.04));
}

.service-icon svg,
.social-links svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.service-card h3,
.project-body h3 {
    margin: 0 0 12px;
    font-size: 1.18rem;
}

.service-card p,
.project-body p,
.site-footer p {
    margin: 0;
    color: var(--muted);
    line-height: 1.75;
}

.projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.project-card {
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--surface-strong);
    border: 1px solid rgba(20, 34, 53, 0.08);
    box-shadow: 0 20px 45px rgba(20, 34, 53, 0.08);
    transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 28px 56px rgba(20, 34, 53, 0.14);
}

.project-media {
    height: 280px;
    background-size: cover;
    background-position: center;
    transition: transform 400ms ease;
}

.project-card:hover .project-media {
    transform: scale(1.04);
}

.project-media-one {
    background-image:
        linear-gradient(180deg, rgba(8, 20, 33, 0.08), rgba(8, 20, 33, 0.32)),
        url("./photo-1460317442991-0ec209397118.jpg");
}

.project-media-two {
    background-image:
        linear-gradient(180deg, rgba(8, 20, 33, 0.08), rgba(8, 20, 33, 0.3)),
        url("./photo-1486406146926-c627a92ad1ab.jpg");
}

.project-media-three {
    background-image:
        linear-gradient(180deg, rgba(8, 20, 33, 0.08), rgba(8, 20, 33, 0.3)),
        url("./photo-1511818966892-d7d671e672a2.jpg");
}

.project-media-four {
    background-image:
        linear-gradient(180deg, rgba(8, 20, 33, 0.08), rgba(8, 20, 33, 0.34)),
        url("./photo-1494526585095-c41746248156.jpg");
}

.project-body {
    padding: 24px 26px 28px;
}

.cta {
    padding-top: 0;
}

.cta-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 42px;
    border-radius: 30px;
    background:
        linear-gradient(135deg, rgba(23, 54, 93, 0.98), rgba(14, 33, 58, 0.96)),
        linear-gradient(90deg, rgba(255, 255, 255, 0.08), transparent);
    color: #fff;
    box-shadow: 0 28px 60px rgba(13, 34, 61, 0.22);
}

.cta-box .eyebrow {
    color: rgba(255, 255, 255, 0.72);
}

.button-light {
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.22);
}

.button-light:hover,
.button-light:focus-visible {
    background: rgba(255, 255, 255, 0.18);
}

.site-footer {
    padding: 24px 0 36px;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-top: 24px;
    border-top: 1px solid rgba(20, 34, 53, 0.08);
}

.social-links {
    display: flex;
    align-items: center;
    gap: 12px;
}

.social-links a {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.78);
    color: var(--primary);
    border: 1px solid rgba(23, 54, 93, 0.1);
    transition: transform var(--transition), background-color var(--transition), color var(--transition);
}

.social-links a:hover,
.social-links a:focus-visible {
    transform: translateY(-2px);
    background: var(--primary);
    color: #fff;
}

.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 700ms ease, transform 700ms ease;
}

.reveal-delay {
    transition-delay: 120ms;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1080px) {
    .services-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (max-width: 820px) {
    :root {
        --container: min(100% - 32px, 1120px);
    }

    .section {
        padding: 88px 0;
    }

    .menu-toggle {
        display: inline-block;
    }

    .site-nav {
        position: absolute;
        top: calc(100% + 10px);
        left: 16px;
        right: 16px;
        flex-direction: column;
        align-items: flex-start;
        gap: 18px;
        padding: 24px;
        border-radius: 24px;
        background: rgba(255, 255, 255, 0.96);
        border: 1px solid rgba(20, 34, 53, 0.08);
        box-shadow: var(--shadow);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    }

    .site-nav.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .hero {
        min-height: 760px;
    }

    .projects-grid,
    .services-grid,
    .cta-box,
    .footer-inner {
        grid-template-columns: 1fr;
        flex-direction: column;
        align-items: flex-start;
    }

    .cta-box {
        padding: 34px 28px;
    }
}

@media (max-width: 640px) {
    .hero-content {
        padding: 48px 0 56px;
    }

    .hero h1 {
        font-size: clamp(2.7rem, 14vw, 4.2rem);
    }

    .about-copy,
    .service-card,
    .project-body {
        padding-left: 22px;
        padding-right: 22px;
    }

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

    .project-media {
        height: 230px;
    }
}

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

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}