:root {
    --midnight-navy: #0F172A;
    --velocity-cyan: #00E5FF;
    --steel-gray: #64748B;
    --premium-gold: #F59E0B;
    --white: #FFFFFF;
}

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

body {
    margin: 0;
    background-color: var(--midnight-navy);
    color: var(--white);
    font-family: 'Titillium Web', sans-serif;
    font-weight: 400;
    line-height: 1.55;
}

h1, h2, h3 {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    line-height: 1.12;
}

.hero {
    min-height: 92vh;
    background-color: var(--midnight-navy);
    padding: clamp(40px, 7vw, 88px) clamp(22px, 5vw, 56px);
    display: flex;
    align-items: center;
}

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    max-width: 1180px;
    margin: 0 auto;
    width: 100%;
    align-items: center;
}

.hero-copy {
    padding-right: clamp(0px, 2vw, 24px);
}

.hero-logo {
    display: block;
    max-width: 132px;
    width: 40%;
    height: auto;
    margin: 0 0 22px;
    opacity: 0.92;
}

.hero-title {
    margin: 0 0 18px;
    font-size: clamp(1.65rem, 2.8vw + 0.6rem, 2.85rem);
    letter-spacing: 0.16em;
}

.hero-lead {
    margin: 0 0 28px;
    font-size: clamp(1rem, 0.35vw + 0.95rem, 1.15rem);
    font-weight: 400;
    color: rgba(226, 232, 240, 0.9);
    max-width: 26em;
}

.btn-play {
    display: inline-block;
    background-color: var(--velocity-cyan);
    color: var(--midnight-navy);
    padding: 14px 32px;
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 2px;
    transition: box-shadow 0.25s ease, transform 0.2s ease;
}

.btn-play:hover {
    box-shadow: 0 0 22px rgba(0, 229, 255, 0.55);
    transform: translateY(-1px);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-media {
    width: 100%;
    max-width: min(400px, 100%);
    margin: 0 auto;
}

.hero-media-clip {
    overflow: hidden;
    border-radius: 12px;
    background-color: var(--midnight-navy);
    line-height: 0;
    transform: translateZ(0);
}

.hero-demo-video {
    display: block;
    width: 100%;
    height: auto;
    margin: 0;
    border: none;
    border-radius: 0;
    box-shadow: none;
    clip-path: inset(0 round 12px);
    -webkit-clip-path: inset(0 round 12px);
}

.comparison {
    background-color: var(--midnight-navy);
    padding: clamp(48px, 8vw, 80px) clamp(22px, 6%, 72px);
    border-top: 1px solid rgba(100, 116, 139, 0.14);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(28px, 4vw, 48px);
    text-align: center;
    max-width: 1100px;
    margin: 0 auto;
}

.screen-slot {
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
}

.screen-slot h3 {
    margin: 0 0 14px;
    font-size: clamp(0.95rem, 1.2vw, 1.05rem);
    letter-spacing: 0.18em;
}

.screen-slot p {
    margin: 14px 0 0;
    color: var(--steel-gray);
    font-size: 0.95rem;
}

.screen-slot img {
    width: 100%;
    max-width: 320px;
    height: auto;
    display: block;
    margin: 0 auto;
    border: none;
    box-shadow: none;
    border-radius: 10px;
}

.badge-gold {
    color: var(--premium-gold);
}

/* Real-world context section */
.field-proof-section {
    background-color: var(--midnight-navy);
    border-top: 1px solid rgba(100, 116, 139, 0.14);
    padding: clamp(40px, 6vw, 64px) clamp(22px, 6%, 72px) clamp(20px, 3vw, 28px);
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

.field-proof-title {
    margin: 0 0 clamp(16px, 2vw, 20px);
    font-size: clamp(0.95rem, 1.2vw, 1.05rem);
    letter-spacing: 0.18em;
}

.field-proof-image-wrapper {
    margin: 0;
    line-height: 0;
    border: 1px solid rgba(0, 229, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    cursor: zoom-in;
}

.field-proof-image-wrapper img {
    width: 100%;
    max-width: 1100px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.technical-caption {
    margin: clamp(16px, 2.2vw, 24px) auto 0;
    max-width: 52ch;
    padding: 0 8px;
    font-size: 0.92rem;
    color: var(--steel-gray);
    line-height: 1.55;
}

.lightbox {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: clamp(16px, 3vw, 28px);
    background: rgba(15, 23, 42, 0.95);
    z-index: 999;
}

.lightbox.is-open {
    display: flex;
}

.lightbox img {
    max-width: min(95vw, 1600px);
    max-height: 90vh;
    width: auto;
    height: auto;
    border-radius: 4px;
    border: 1px solid rgba(0, 229, 255, 0.14);
}

.lightbox-close {
    position: absolute;
    top: 16px;
    right: 18px;
    border: 0;
    background: transparent;
    color: var(--white);
    font-size: 1.8rem;
    line-height: 1;
    cursor: pointer;
}

body.lightbox-open {
    overflow: hidden;
}

.features {
    background-color: var(--midnight-navy);
    padding: clamp(44px, 7vw, 72px) clamp(22px, 6%, 72px) clamp(56px, 9vw, 88px);
    border-top: 1px solid rgba(100, 116, 139, 0.14);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: clamp(20px, 3vw, 28px);
    max-width: 1100px;
    margin: 0 auto;
}

.feature-item {
    position: relative;
    padding: 20px 18px 18px 20px;
    background: transparent;
    border: 1px solid rgba(100, 116, 139, 0.2);
    border-radius: 0;
    transition: border-color 0.2s ease;
}

.feature-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--velocity-cyan);
    opacity: 0.85;
}

.feature-item:hover {
    border-color: rgba(0, 229, 255, 0.35);
}

.feature-item h3 {
    margin: 0 0 10px;
    font-size: 1rem;
    letter-spacing: 0.14em;
}

.feature-item p {
    margin: 0;
    color: var(--steel-gray);
    font-size: 0.92rem;
}

footer {
    padding: 40px clamp(20px, 4vw, 40px) 48px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--steel-gray);
    background-color: var(--midnight-navy);
    border-top: 1px solid rgba(100, 116, 139, 0.14);
}

/* Locale switcher — add <li><a href="../xx/" hreflang lang>…</a></li> for new languages */
.lang-nav {
    margin: 0 0 22px;
    font-size: 0.8rem;
    font-family: 'Titillium Web', sans-serif;
    text-transform: none;
    letter-spacing: 0.02em;
}

.lang-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.35rem 1.1rem;
}

.lang-nav li {
    margin: 0;
}

.lang-nav a[href][aria-current="page"] {
    color: var(--white);
    font-weight: 600;
    text-decoration: none;
    cursor: default;
}

.lang-nav a[href]:not([aria-current="page"]) {
    color: var(--velocity-cyan);
    text-decoration: none;
}

.lang-nav a[href]:not([aria-current="page"]):hover {
    text-decoration: underline;
}

.credits-block {
    margin-bottom: 28px;
}

.credits-kicker {
    letter-spacing: 0.2em;
    font-size: 0.68rem;
    color: var(--steel-gray);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.noiselogic-brand {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    color: var(--white);
    transition: transform 0.25s ease;
}

.noiselogic-logo {
    width: 110px;
    height: auto;
    opacity: 0.95;
    filter: drop-shadow(0 0 10px rgba(0, 229, 255, 0.35));
    transition: filter 0.25s ease, transform 0.25s ease;
}

.noiselogic-wordmark {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: 0.22em;
}

.noiselogic-brand:hover {
    transform: translateY(-1px);
}

.noiselogic-brand:hover .noiselogic-logo {
    transform: scale(1.03);
    filter: drop-shadow(0 0 14px rgba(0, 229, 255, 0.5));
}

.credits-origin {
    font-size: 0.8rem;
    font-style: italic;
    margin-top: 8px;
    color: var(--steel-gray);
}

.footer-rule {
    border-top: 1px solid rgba(100, 116, 139, 0.16);
    padding-top: 22px;
    max-width: 640px;
    margin: 0 auto;
}

.footer-note {
    font-size: 0.75rem;
    margin: 0 auto 18px;
    line-height: 1.55;
}

.link-cyan {
    color: var(--velocity-cyan);
    text-decoration: none;
}

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

@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
    }

    .hero-copy {
        padding-right: 0;
        text-align: center;
    }

    .hero-logo {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-lead {
        margin-left: auto;
        margin-right: auto;
    }

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