* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

:root {
    --background: #08090b;
    --surface: #0e1013;

    --text: #f2f3f5;
    --muted: #858b94;
    --dim: #555b64;

    --border: #22262d;
}

body {
    margin: 0;

    background: var(--background);
    color: var(--text);

    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    line-height: 1.6;
}


/* =========================
   HEADER
   ========================= */

header {
    position: fixed;

    top: 0;
    left: 0;
    right: 0;

    z-index: 100;

    height: 68px;

    background: rgba(8, 9, 11, 0.85);

    border-bottom: 1px solid var(--border);

    backdrop-filter: blur(12px);
}


.nav-inner {
    height: 100%;

    max-width: 1100px;

    margin: auto;

    padding: 0 28px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}


.logo {
    color: var(--text);

    font-size: 1.05rem;
    font-weight: 800;

    letter-spacing: -0.045em;

    text-decoration: none;
}


.logo span {
    color: var(--dim);
}


nav {
    display: flex;

    gap: 25px;
}


nav a {
    color: var(--muted);

    font-size: 0.82rem;

    text-decoration: none;

    transition: color 0.2s ease;
}


nav a:hover {
    color: var(--text);
}


/* =========================
   INTRO
   ========================= */

.intro {
    min-height: 78vh;

    display: flex;
    align-items: center;

    padding: 150px 28px 100px;

    border-bottom: 1px solid var(--border);
}


.intro-inner {
    width: 100%;

    max-width: 1100px;

    margin: auto;
}


.label {
    margin: 0 0 18px;

    color: var(--muted);

    font-family: monospace;

    font-size: 0.72rem;
    font-weight: 700;

    letter-spacing: 0.16em;
}


h1 {
    margin: 0;

    font-size: clamp(4.5rem, 12vw, 9rem);

    line-height: 0.85;

    letter-spacing: -0.09em;
}


.intro-text {
    margin: 35px 0;

    color: var(--muted);

    font-size: 1.15rem;
}


.actions {
    display: flex;

    gap: 10px;

    flex-wrap: wrap;
}


/* =========================
   BUTTONS
   ========================= */

.button {
    display: inline-block;

    padding: 10px 17px;

    border: 1px solid var(--border);
    border-radius: 7px;

    color: var(--text);

    font-size: 0.82rem;
    font-weight: 700;

    text-decoration: none;

    background: var(--surface);

    transition:
        background 0.2s ease,
        border-color 0.2s ease;
}


.button:hover {
    background: #15181d;

    border-color: #353a43;
}


.button.primary {
    background: var(--text);

    color: #08090b;

    border-color: var(--text);
}


.button.primary:hover {
    background: #dfe1e4;

    border-color: #dfe1e4;
}


/* =========================
   CONTENT
   ========================= */

.content {
    border-bottom: 1px solid var(--border);
}


.content-inner {
    max-width: 1100px;

    margin: auto;

    padding: 110px 28px;
}


h2 {
    max-width: 700px;

    margin: 0 0 25px;

    font-size: clamp(2.3rem, 5vw, 4.2rem);

    line-height: 1;

    letter-spacing: -0.065em;
}


.body-text {
    max-width: 650px;

    margin: 0 0 30px;

    color: var(--muted);

    font-size: 1rem;
}


/* =========================
   FEATURES
   ========================= */

.feature-list {
    margin-top: 45px;

    border-top: 1px solid var(--border);
}


.feature {
    display: grid;

    grid-template-columns: 80px 1fr;

    gap: 30px;

    padding: 30px 0;

    border-bottom: 1px solid var(--border);
}


.number {
    color: var(--dim);

    font-family: monospace;

    font-size: 0.8rem;
}


.feature h3 {
    margin: 0 0 7px;

    font-size: 1.2rem;

    letter-spacing: -0.025em;
}


.feature p {
    max-width: 600px;

    margin: 0;

    color: var(--muted);

    font-size: 0.9rem;
}


/* =========================
   LINKS
   ========================= */

.text-link {
    color: var(--text);

    font-size: 0.9rem;
    font-weight: 700;

    text-decoration: none;
}


.text-link:hover {
    text-decoration: underline;
}


/* =========================
   DOWNLOAD
   ========================= */

.download {
    background: var(--surface);
}


.download .content-inner {
    padding-top: 120px;
    padding-bottom: 120px;
}


.version {
    margin-top: 18px;

    color: var(--dim);

    font-family: monospace;

    font-size: 0.72rem;
}


/* =========================
   FOOTER
   ========================= */

footer {
    padding: 40px 28px;

    color: var(--muted);
}


.footer-inner {
    max-width: 1100px;

    margin: auto;
}


.footer-logo {
    color: var(--text);

    font-weight: 800;

    letter-spacing: -0.04em;
}


.footer-logo span {
    color: var(--dim);
}


footer p {
    margin: 5px 0;

    font-size: 0.8rem;
}


.copyright {
    margin-top: 20px;
}


/* =========================
   MOBILE
   ========================= */

@media (max-width: 700px) {

    .nav-inner {
        padding: 0 18px;
    }


    nav {
        gap: 14px;
    }


    nav a {
        font-size: 0.75rem;
    }


    .intro {
        padding-left: 20px;
        padding-right: 20px;
    }


    .content-inner {
        padding-left: 20px;
        padding-right: 20px;
    }


    .feature {
        grid-template-columns: 45px 1fr;

        gap: 10px;
    }

}