:root {
    --bg: #08090d;
    --surface: #0b0d11;
    --surface-soft: #111318;
    --line: rgba(222, 228, 236, 0.11);
    --line-strong: rgba(222, 228, 236, 0.2);
    --text: #f1f3f5;
    --muted: #a0a7b0;
    --quiet: #69717b;
    --accent: #c4cbd3;
    --accent-soft: #89929d;
    --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: "Fira Code", "SFMono-Regular", Consolas, monospace;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    line-height: 1.65;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -3;
    pointer-events: none;
    background:
        linear-gradient(rgba(255, 255, 255, 0.032) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.032) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.78), transparent 74%);
}

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

a {
    color: inherit;
}

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

h1,
h2,
h3,
p {
    margin: 0;
}

.container,
.hero-grid {
    width: min(1060px, calc(100% - 40px));
    margin: 0 auto;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 20;
    background: rgba(8, 9, 13, 0.72);
    border-bottom: 1px solid transparent;
    backdrop-filter: blur(16px);
    transition: background 180ms ease, border-color 180ms ease;
}

.header.is-scrolled {
    background: rgba(8, 9, 13, 0.92);
    border-color: var(--line);
}

.nav-container {
    width: min(1060px, calc(100% - 32px));
    min-height: 72px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-logo {
    display: inline-flex;
    width: clamp(170px, 22vw, 220px);
    flex: 0 0 auto;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: clamp(18px, 3vw, 34px);
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-link {
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 500;
    text-decoration: none;
    transition: color 180ms ease;
}

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

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.035);
    color: var(--text);
    cursor: pointer;
}

.nav-toggle span {
    width: 17px;
    height: 2px;
    background: currentColor;
    transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.hero {
    position: relative;
    min-height: 86vh;
    display: grid;
    align-items: center;
    padding: 120px 0 84px;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background:
        radial-gradient(circle at 18% 20%, rgba(184, 194, 204, 0.09), transparent 36%),
        radial-gradient(circle at 75% 35%, rgba(105, 113, 123, 0.08), transparent 34%),
        var(--bg);
}

#hero-canvas {
    position: absolute;
    inset: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
    opacity: 0.5;
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 34%;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(to bottom, transparent, var(--bg));
}

.hero-grid {
    position: relative;
    z-index: 2;
    max-width: 880px;
}

.eyebrow,
.section-kicker {
    color: var(--accent-soft);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0;
    text-transform: uppercase;
}

.hero-title {
    max-width: 860px;
    margin-top: 18px;
    font-size: clamp(2.8rem, 7vw, 5.8rem);
    line-height: 1.02;
    font-weight: 700;
}

.hero-subtitle {
    max-width: 620px;
    margin-top: 24px;
    color: var(--muted);
    font-size: clamp(1.05rem, 1.5vw, 1.22rem);
}

.text-link {
    display: inline-flex;
    margin-top: 30px;
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid rgba(196, 203, 211, 0.42);
}

.text-link:hover,
.text-link:focus-visible {
    color: var(--text);
    border-color: var(--text);
}

.section {
    padding: clamp(70px, 9vw, 112px) 0;
}

.section-contrast {
    background: rgba(13, 16, 22, 0.82);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.split {
    display: grid;
    grid-template-columns: minmax(240px, 0.76fr) minmax(0, 1.24fr);
    gap: clamp(32px, 6vw, 78px);
}

.section h2,
.section-heading h2 {
    max-width: 620px;
    margin-top: 12px;
    font-size: clamp(1.9rem, 3.4vw, 3.2rem);
    line-height: 1.12;
    font-weight: 650;
}

.section-copy {
    display: grid;
    gap: 20px;
    color: var(--muted);
    font-size: 1.04rem;
}

.section-heading {
    margin-bottom: 34px;
}

.expertise-list {
    border-top: 1px solid var(--line);
}

.expertise-item {
    display: grid;
    grid-template-columns: minmax(210px, 0.36fr) minmax(0, 0.64fr);
    gap: clamp(24px, 5vw, 58px);
    padding: 28px 0;
    border-bottom: 1px solid var(--line);
}

.expertise-item h3 {
    font-size: 1.05rem;
    line-height: 1.35;
    font-weight: 600;
}

.expertise-item p {
    color: var(--muted);
}

.contact .section-copy {
    align-content: start;
}

.email-button {
    width: fit-content;
    min-height: 44px;
    margin-top: 4px;
    padding: 0 16px;
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    background: transparent;
    color: var(--text);
    font: 600 0.96rem var(--font-sans);
    cursor: pointer;
    transition: border-color 180ms ease, color 180ms ease;
}

.email-button:hover,
.email-button:focus-visible {
    border-color: var(--accent);
    color: var(--accent);
}

.email-link {
    width: fit-content;
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid rgba(196, 203, 211, 0.42);
    overflow-wrap: anywhere;
}

.email-link:hover,
.email-link:focus-visible {
    color: var(--text);
    border-color: var(--text);
}

.footer {
    border-top: 1px solid var(--line);
    background: #06070a;
}

.footer-inner {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    color: var(--quiet);
    font-size: 0.9rem;
}

@media (max-width: 820px) {
    .split,
    .expertise-item {
        grid-template-columns: 1fr;
    }

    .nav-container {
        min-height: 68px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .nav-menu {
        position: fixed;
        top: 68px;
        right: 14px;
        left: 14px;
        display: grid;
        gap: 0;
        padding: 8px;
        border: 1px solid var(--line);
        border-radius: 6px;
        background: rgba(8, 9, 13, 0.96);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-8px);
        transition: opacity 180ms ease, transform 180ms ease;
    }

    .nav-menu.active {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .nav-link {
        display: block;
        padding: 12px;
    }

    .hero {
        min-height: auto;
        padding: 112px 0 72px;
    }

    .hero-title {
        font-size: clamp(2.55rem, 12vw, 4.4rem);
    }

    .footer-inner {
        justify-content: center;
        text-align: center;
        flex-direction: column;
        padding: 22px 0;
    }
}

@media (max-width: 520px) {
    .container,
    .hero-grid {
        width: min(100% - 28px, 1060px);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}