:root {
    --bg:         #0A0A0B;
    --bg-card:    #111113;
    --bg-hover:   #1A1A1D;
    --border:     #26262A;
    --text:       #FAFAFA;
    --text-dim:   #A1A1AA;
    --text-muted: #52525B;
    --accent:     #06B6D4;
    --accent-hov: #0891B2;

    --font-sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

    --radius: 12px;
    --radius-sm: 8px;
    --container: 1200px;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 200ms var(--ease);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 17px;
    line-height: 1.7;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body.menu-open { overflow: hidden; }

h1, h2, h3 {
    margin: 0;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text);
}

h1 {
    font-size: clamp(40px, 7vw, 64px);
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(28px, 4.5vw, 40px);
    font-weight: 600;
}

h3 {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

p { margin: 0; }

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}

a:hover { color: var(--accent); }

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

::selection { background: var(--accent); color: var(--bg); }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.section { padding: 120px 0; }

.section-lead {
    color: var(--text-dim);
    font-size: 18px;
    max-width: 560px;
    margin: 16px 0 56px;
}

.label {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
    margin: 0 0 20px;
    letter-spacing: 0;
}

.prose p {
    color: var(--text-dim);
    font-size: 17px;
    margin-bottom: 20px;
}
.prose p:last-child { margin-bottom: 0; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: #05171B;
}
.btn-primary:hover {
    background: var(--accent-hov);
    color: #05171B;
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}
.btn-ghost:hover {
    color: var(--text);
    border-color: var(--accent);
    background: var(--bg-hover);
}

.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-lg {
    padding: 16px 32px;
    font-size: 17px;
    font-family: var(--font-mono);
    font-weight: 400;
}

.btn svg { transition: transform var(--transition); }
.btn:hover svg { transform: translateX(3px); }

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
    border-bottom: 1px solid transparent;
}

.nav.scrolled {
    background: rgba(10, 10, 11, 0.72);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom-color: var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 18px;
    padding-bottom: 18px;
}

.logo {
    font-family: var(--font-mono);
    font-size: 17px;
    font-weight: 400;
    color: var(--text);
    letter-spacing: -0.01em;
}
.logo:hover { color: var(--text); }
.logo-brace { color: var(--accent); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    font-size: 15px;
    color: var(--text-dim);
    font-weight: 400;
}

.nav-links a:hover { color: var(--text); }
.nav-links .btn { color: #05171B; }

.nav-lang {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
}
.nav-lang a {
    color: var(--text-muted);
    font-size: 13px;
    padding: 4px 2px;
}
.nav-lang a[aria-current="page"] { color: var(--text); }
.nav-lang a:hover { color: var(--accent); }
.nav-lang span { color: var(--border); }

.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text);
    padding: 8px;
    cursor: pointer;
    border-radius: var(--radius-sm);
}

.nav-toggle svg line {
    transition: transform var(--transition), opacity var(--transition);
    transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .line-top {
    transform: translateY(6px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .line-mid { opacity: 0; }
.nav-toggle[aria-expanded="true"] .line-bot {
    transform: translateY(-6px) rotate(-45deg);
}

.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding: 140px 0 80px;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 900px;
    height: 900px;
    max-width: 140vw;
    background: radial-gradient(circle at center, rgba(6, 182, 212, 0.18) 0%, rgba(6, 182, 212, 0.06) 35%, transparent 65%);
    pointer-events: none;
    z-index: -1;
    filter: blur(20px);
}

.hero-inner { position: relative; }

.hero h1 {
    margin-bottom: 24px;
    max-width: 900px;
}

.hero h1 .accent {
    color: var(--accent);
    position: relative;
    white-space: nowrap;
}

.hero-lead {
    font-size: clamp(17px, 2vw, 20px);
    color: var(--text-dim);
    max-width: 600px;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.availability {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 14px 6px 12px;
    margin-bottom: 28px;
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.25);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-dim);
}

.availability-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10B981;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
    animation: pulse 2.4s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
    50%      { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
}

.about-grid {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: 64px;
    align-items: start;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}

.about-card dl {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-row {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 20px;
    align-items: baseline;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}
.about-row:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.about-row dt {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--accent);
    white-space: nowrap;
}

.about-row dd {
    margin: 0;
    color: var(--text-dim);
    font-size: 15px;
    line-height: 1.5;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    counter-reset: card;
}

.card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    counter-increment: card;
    transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.card::before {
    content: counter(card, decimal-leading-zero);
    position: absolute;
    top: 24px;
    right: 28px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.04em;
    transition: color var(--transition);
}

.card:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    background: var(--bg-hover);
    box-shadow: 0 1px 0 0 rgba(6, 182, 212, 0.12) inset;
}

.card:hover::before { color: var(--accent); }

.services-grid > .card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
}

.card-icon {
    color: var(--accent);
    margin-bottom: 20px;
}

.card h3 { margin-bottom: 10px; }

.card p {
    color: var(--text-dim);
    font-size: 15.5px;
    line-height: 1.65;
}

.card-tags {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.section-contact {
    padding: 120px 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.contact-inner {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.contact-heading {
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 16px;
}

.contact-inner .section-lead { margin: 0 auto 40px; }

.socials {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.social {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--text-dim);
    padding: 8px 4px;
}
.social:hover { color: var(--accent); }
.social svg { flex-shrink: 0; }

.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 700ms var(--ease), transform 700ms var(--ease);
    will-change: opacity, transform;
}

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

@media (max-width: 768px) {
    body { font-size: 16px; }

    .section { padding: 80px 0; }
    .section-contact { padding: 80px 0; }

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

    .nav-links {
        position: fixed;
        inset: 0;
        top: 0;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 32px;
        background: rgba(10, 10, 11, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        transform: translateX(100%);
        transition: transform 300ms var(--ease);
        padding: 80px 24px 40px;
    }

    .nav-links.is-open { transform: translateX(0); }

    .nav-links a {
        font-size: 22px;
        color: var(--text);
    }

    .nav-links .btn {
        font-size: 16px;
        padding: 14px 28px;
    }

    .hero {
        min-height: auto;
        padding: 120px 0 80px;
    }

    .availability {
        font-size: 12px;
        margin-bottom: 24px;
    }

    .hero-actions .btn { flex: 1; min-width: 140px; }

    .card::before { top: 20px; right: 24px; }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-card { padding: 24px; }

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

    .card { padding: 28px; }

    .btn-lg {
        font-size: 14px;
        padding: 14px 22px;
        word-break: break-all;
    }

    .socials { gap: 24px; }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

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

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