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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #0b0b0b;
    color: #f5f5f5;
    line-height: 1.6;
}

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


/* NAVBAR */

.navbar {
    max-width: 1100px;
    margin: auto;
    padding: 24px 30px;

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

.logo {
    font-size: 20px;
    font-weight: 700;
}

.navbar nav {
    display: flex;
    gap: 25px;
}

.navbar nav a {
    color: #999;
    font-size: 14px;
}

.navbar nav a:hover {
    color: #fff;
}


/* HERO */

.hero {
    max-width: 1000px;
    margin: auto;

    min-height: 80vh;

    display: flex;
    flex-direction: column;
    justify-content: center;

    padding: 80px 30px;
}

.eyebrow,
.section-label {
    font-size: 12px;
    letter-spacing: 2px;
    color: #888;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: clamp(55px, 9vw, 110px);
    line-height: 0.95;
    letter-spacing: -5px;

    max-width: 850px;
}

.hero-description {
    max-width: 600px;

    margin-top: 35px;

    color: #aaa;
    font-size: 19px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-top: 35px;
}


/* BUTTONS */

.button {
    display: inline-block;

    padding: 13px 22px;

    border: 1px solid #333;

    font-size: 14px;

    transition: 0.2s ease;
}

.button.primary {
    background: #fff;
    color: #000;
    border-color: #fff;
}

.button.primary:hover {
    opacity: 0.8;
}

.button.secondary:hover {
    background: #181818;
}


/* TECHNOLOGY STRIP */

.tech-strip {
    overflow: hidden;

    border-top: 1px solid #222;
    border-bottom: 1px solid #222;

    padding: 20px 0;

    white-space: nowrap;
}

.tech-track {
    display: flex;
    gap: 60px;

    width: max-content;

    animation: scroll 25s linear infinite;
}

.tech-track span {
    color: #666;
    font-size: 14px;
}

@keyframes scroll {

    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-50%);
    }

}


/* DOWNLOAD */

.download-section,
.features-section,
.why-section {
    max-width: 1000px;

    margin: auto;

    padding: 120px 30px;
}

.download-section h2,
.features-section h2,
.why-section h2 {
    font-size: clamp(40px, 6vw, 65px);

    line-height: 1;

    letter-spacing: -2px;
}

.download-section > p,
.section-description,
.why-section > p {
    color: #888;

    max-width: 600px;

    margin-top: 20px;
}


/* RELEASE CARD */

.release-card {

    margin-top: 50px;

    padding: 30px;

    border: 1px solid #292929;

    display: flex;

    justify-content: space-between;

    align-items: center;

    gap: 30px;
}

.release-info {

    display: flex;

    gap: 60px;
}

.release-info div {
    display: flex;
    flex-direction: column;
}

.release-info span {
    color: #666;
    font-size: 12px;
}

.release-info strong {
    margin-top: 5px;
}


/* QUICK START */

.quick-start {

    margin-top: 40px;

    border-left: 2px solid #333;

    padding-left: 25px;
}

.quick-start h3 {
    margin-bottom: 10px;
}

.usage-list {
    margin-left: 20px;
    color: #d3d3d3;
    display: grid;
    gap: 12px;
    line-height: 1.6;
}

.usage-list code {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    padding: 2px 7px;
    font-size: 0.92em;
}

.tutorial-section {
    margin-top: 80px;
}

.tutorial-timeline {
    margin-top: 26px;
    display: grid;
    gap: 18px;
}

.tutorial-step {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 18px;
    padding: 24px 22px;
    background: #111;
    border: 1px solid #2a2a2a;
    border-radius: 14px;
}

.step-index {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f5f5;
    color: #070707;
    font-weight: 700;
}

.step-content {
    display: grid;
    gap: 12px;
}

.step-content h3 {
    font-size: 22px;
    letter-spacing: -0.04em;
}

.step-content p,
.interface-list li,
.small-note {
    color: #aaaaaa;
    font-size: 15px;
    line-height: 1.6;
}

.step-content pre {
    background: #080808;
    border: 1px solid #232323;
    border-radius: 10px;
    padding: 14px 16px;
    overflow-x: auto;
}

.step-content code {
    font-family: Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.92em;
    color: #f4f4f4;
}

.interface-list {
    list-style: none;
    display: grid;
    gap: 8px;
    padding-left: 0;
}

.interface-list li::before {
    content: "•";
    color: #f5f5f5;
    margin-right: 8px;
}

.output-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    padding: 12px 14px;
    display: grid;
    gap: 8px;
}

.output-box span {
    color: #777;
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.output-box code {
    white-space: pre-line;
}

.step-gallery {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.step-card {
    background: #111;
    border: 1px solid #2a2a2a;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.step-card:hover {
    transform: translateY(-2px);
    border-color: #4b4b4b;
}

.step-card img {
    display: block;
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: #171717;
}

.step-card figcaption {
    padding: 14px 16px 18px;
    color: #d9d9d9;
    font-size: 14px;
    line-height: 1.5;
}

.step-card figcaption code {
    font-size: 0.9em;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    padding: 2px 6px;
}

.quick-start li {
    color: #888;
    margin-bottom: 5px;
}

code {
    background: #171717;
    padding: 3px 7px;
}


/* FEATURES */

.features-grid {

    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 1px;

    background: #292929;

    margin-top: 60px;
}

.feature-card {

    background: #0b0b0b;

    padding: 35px;

    min-height: 220px;
}

.feature-number {

    color: #555;

    font-size: 12px;
}

.feature-card h3 {
    margin-top: 35px;

    font-size: 20px;
}

.feature-card p {

    margin-top: 12px;

    color: #777;

    font-size: 14px;
}


/* WHY */

.why-section {

    border-top: 1px solid #222;

    border-bottom: 1px solid #222;
}

.why-section h2 {

    max-width: 750px;
}

.why-section p {

    font-size: 18px;
}


/* FOOTER */

footer {

    max-width: 1000px;

    margin: auto;

    padding: 60px 30px;

}

.footer-brand {

    display: flex;

    flex-direction: column;

    gap: 5px;
}

.footer-brand span {

    color: #666;

    font-size: 16px;
}

.footer-links {

    display: flex;

    gap: 24px;

    margin-top: 30px;

    color: #888;

    font-size: 14px;
}

.footer-bottom {

    margin-top: 60px;

    padding-top: 20px;

    border-top: 1px solid #222;

    display: flex;

    justify-content: space-between;

    color: #555;

    font-size: 12px;
}


/* MOBILE */

@media (max-width: 700px) {

    .navbar nav {
        display: none;
    }

    .hero h1 {
        letter-spacing: -3px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }

    .release-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .release-info {
        flex-wrap: wrap;
        gap: 30px;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 10px;
    }

}