:root {
    --bg: #000;
    --ink: #f5f5f0;
    --muted: #a7a7a2;
    --dim: #6f6f6a;
    --line: rgba(255, 255, 255, 0.16);
    --line-strong: rgba(255, 255, 255, 0.28);
    --accent: #b16645;
    --max: 1260px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
    font-size: 15px;
    line-height: 1.55;
}

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

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

.skip-link {
    position: fixed;
    left: 16px;
    top: 16px;
    z-index: 100;
    transform: translateY(-160%);
    background: var(--ink);
    color: var(--bg);
    padding: 10px 14px;
    font-weight: 700;
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    position: fixed;
    z-index: 20;
    top: 0;
    left: 0;
    right: 0;
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: clamp(28px, 4vw, 64px);
    padding: 34px clamp(24px, 6vw, 72px);
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.72), rgba(0, 0, 0, 0));
}

.brand {
    display: inline-block;
    font-size: clamp(20px, 2vw, 28px);
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0;
    color: var(--ink);
}

.site-nav,
.site-footer nav,
.nav-action,
.button,
.section h2,
.method-grid h3,
.method-grid span,
.signal-row,
.origin-media figcaption {
    text-transform: uppercase;
}

.site-nav,
.site-footer nav {
    display: flex;
    align-items: center;
    gap: clamp(22px, 3vw, 46px);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.28em;
}

.site-nav a,
.site-footer a,
.signal-row,
.contact-link {
    transition: color 160ms ease, border-color 160ms ease, opacity 160ms ease;
}

.site-nav a:hover,
.site-footer a:hover,
.signal-row:hover,
.contact-link:hover {
    color: var(--ink);
    opacity: 0.72;
}

.nav-action,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 54px;
    padding: 0 28px;
    border: 1px solid var(--line-strong);
    color: var(--ink);
    background: transparent;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.2em;
    line-height: 1;
    white-space: nowrap;
    transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.button-primary {
    background: rgba(255, 255, 255, 0.94);
    border-color: rgba(255, 255, 255, 0.94);
    color: #050505;
}

.nav-action:hover,
.button-outline:hover {
    border-color: var(--ink);
    background: rgba(255, 255, 255, 0.1);
}

.button-primary:hover {
    background: transparent;
    color: var(--ink);
}

.hero {
    position: relative;
    min-height: 820px;
    display: grid;
    align-items: end;
    padding: 160px clamp(24px, 6vw, 84px) 80px;
    overflow: hidden;
}

.hero-media,
.hero-shade {
    position: absolute;
    inset: 0;
}

.hero-media {
    background-image: url("/assets/images/0711-remstal-hero.jpg");
    background-size: cover;
    background-position: center center;
    filter: saturate(0.72) contrast(1.08) brightness(0.82);
}

.hero-shade {
    background:
        linear-gradient(90deg, rgba(0, 0, 0, 0.88), rgba(0, 0, 0, 0.42) 54%, rgba(0, 0, 0, 0.18)),
        linear-gradient(0deg, rgba(0, 0, 0, 0.82), rgba(0, 0, 0, 0.1) 42%, rgba(0, 0, 0, 0.68));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.hero h1,
.section h2 {
    margin: 0;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.hero h1 {
    max-width: 760px;
    font-size: clamp(52px, 7vw, 104px);
    line-height: 1.04;
}

.hero p {
    max-width: 440px;
    margin: 30px 0 0;
    color: var(--muted);
    font-size: clamp(16px, 1.7vw, 20px);
    line-height: 1.55;
}

.hero p::before,
.section-copy p::before {
    content: "";
    display: block;
    width: 42px;
    height: 1px;
    margin: 0 0 24px;
    background: var(--accent);
}

.hero-actions {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    margin-top: 42px;
}

.section {
    padding: clamp(84px, 10vw, 140px) clamp(24px, 6vw, 84px);
    border-top: 1px solid var(--line);
    background: #030303;
}

.section-copy {
    max-width: 470px;
}

.section h2 {
    font-size: clamp(34px, 4.6vw, 62px);
    line-height: 1.15;
}

.section-copy p {
    margin: 62px 0 0;
    color: var(--muted);
    font-size: clamp(16px, 1.6vw, 19px);
}

.origin-layout {
    max-width: var(--max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(260px, 0.34fr) minmax(0, 0.66fr);
    gap: clamp(48px, 8vw, 132px);
    align-items: center;
}

.origin-media {
    display: grid;
    grid-template-columns: 1fr 0.82fr;
    gap: 28px;
}

.origin-media figure {
    margin: 0;
}

.origin-media img {
    display: block;
    width: 100%;
    aspect-ratio: 1.08 / 1;
    object-fit: cover;
    border: 1px solid var(--line);
    filter: saturate(0.62) contrast(1.08) brightness(0.78);
}

.origin-media figure:last-child img {
    aspect-ratio: 0.82 / 1;
}

.origin-media figcaption {
    margin-top: 14px;
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.2em;
}

.section-method,
.section-signals,
.section-contact {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0)),
        #020202;
}

.method-grid {
    max-width: var(--max);
    margin: 64px auto 0;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    border-top: 1px solid var(--line);
}

.method-grid article {
    min-height: 160px;
    padding: 30px 24px 0 0;
    border-right: 1px solid var(--line);
}

.method-grid article:not(:first-child) {
    padding-left: 24px;
}

.method-grid article:last-child {
    border-right: 0;
}

.method-grid span {
    color: var(--dim);
    font-size: 13px;
    letter-spacing: 0.28em;
}

.method-grid h3 {
    margin: 30px 0 12px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.28em;
}

.method-grid p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.section-signals .section-copy,
.section-contact .section-copy,
.section-method .section-copy {
    max-width: var(--max);
    margin: 0 auto;
}

.signal-table {
    max-width: var(--max);
    margin: 58px auto 0;
    border-top: 1px solid var(--line);
}

.signal-row {
    display: grid;
    grid-template-columns: 1fr 1.3fr 0.5fr;
    gap: 28px;
    align-items: center;
    min-height: 72px;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.26em;
}

.signal-head {
    min-height: 46px;
    color: var(--dim);
    font-size: 10px;
}

.signal-row div:last-child {
    text-align: right;
}

.contact-layout {
    max-width: var(--max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(260px, 0.5fr) minmax(0, 0.5fr);
    gap: clamp(44px, 8vw, 120px);
    align-items: center;
}

.contact-link {
    justify-self: end;
    color: var(--ink);
    font-size: clamp(16px, 2vw, 22px);
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 32px;
    align-items: flex-end;
    padding: 52px clamp(24px, 6vw, 84px) 64px;
    border-top: 1px solid var(--line);
    background: #020202;
}

.site-footer p {
    margin: 18px 0 0;
    color: var(--dim);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

@media (max-width: 980px) {
    .site-header {
        grid-template-columns: 1fr auto;
    }

    .site-nav {
        display: none;
    }

    .origin-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .origin-media {
        grid-template-columns: 1fr 1fr;
    }

    .method-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .method-grid article:nth-child(2n) {
        border-right: 0;
    }

    .signal-row {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 22px 0;
    }

    .signal-head {
        display: none;
    }

    .signal-row div:last-child {
        text-align: left;
    }

    .contact-link {
        justify-self: start;
    }
}

@media (max-width: 640px) {
    .site-header {
        padding: 22px 20px;
    }

    .brand {
        font-size: 21px;
    }

    .nav-action,
    .button {
        min-height: 42px;
        padding: 0 14px;
        font-size: 10px;
        letter-spacing: 0.16em;
    }

    .hero {
        min-height: 720px;
        padding: 128px 20px 56px;
    }

    .hero-media {
        background-position: 59% center;
    }

    .hero-shade {
        background:
            linear-gradient(90deg, rgba(0, 0, 0, 0.88), rgba(0, 0, 0, 0.54)),
            linear-gradient(0deg, rgba(0, 0, 0, 0.86), rgba(0, 0, 0, 0.14));
    }

    .hero h1 {
        font-size: clamp(42px, 13vw, 62px);
        letter-spacing: 0.14em;
    }

    .hero p {
        font-size: 16px;
    }

    .hero-actions {
        gap: 12px;
    }

    .section {
        padding: 72px 20px;
    }

    .section h2 {
        font-size: clamp(31px, 11vw, 44px);
        letter-spacing: 0.18em;
    }

    .section-copy p {
        margin-top: 44px;
    }

    .origin-media,
    .method-grid {
        grid-template-columns: 1fr;
    }

    .origin-media img,
    .origin-media figure:last-child img {
        aspect-ratio: 1.16 / 1;
    }

    .method-grid article,
    .method-grid article:nth-child(2n) {
        min-height: auto;
        border-right: 0;
        border-bottom: 1px solid var(--line);
        padding: 24px 0;
    }

    .method-grid article:not(:first-child) {
        padding-left: 0;
    }

    .site-footer {
        flex-direction: column;
        align-items: flex-start;
        padding: 42px 20px 52px;
    }

    .site-footer nav {
        gap: 18px;
        font-size: 10px;
        letter-spacing: 0.2em;
    }
}