:root {
    --bg: #ffffff;
    --fg: #0a0a0a;
    --muted: #6e6e6e;
    --line: #dedede;
    --max-width: 1440px;
    --page-x: clamp(22px, 4vw, 72px);
}

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

html {
    background: var(--bg);
    color: var(--fg);
    font-family: "Montserrat", Arial, sans-serif;
    font-size: 16px;
    font-weight: 300;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    color: var(--fg);
}

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

.site-header {
    width: min(100%, var(--max-width));
    margin: 0 auto;
    padding: 28px var(--page-x);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    border-bottom: 1px solid var(--line);
}

.brand {
    display: inline-flex;
    align-items: center;
}

.brand-logo {
    display: block;
    width: clamp(130px, 14vw, 210px);
    height: auto;
    object-fit: contain;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: clamp(18px, 2.5vw, 42px);
}

.site-nav a,
.site-footer,
.site-footer a {
    font-size: 0.68rem;
    font-weight: 300;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.site-nav a {
    position: relative;
    padding: 7px 0;
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
}

.site-main {
    flex: 1;
    width: 100%;
}

.page-shell {
    width: min(100%, var(--max-width));
    min-height: 68vh;
    margin: 0 auto;
    padding: clamp(64px, 9vw, 150px) var(--page-x);
}

.site-footer {
    width: min(100%, var(--max-width));
    margin: 0 auto;
    padding: 26px var(--page-x) 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 22px;
    border-top: 1px solid var(--line);
    color: var(--muted);
}

.site-footer a {
    color: var(--fg);
}

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

/* Optional black version: add class="theme-dark" to <body>. */
body.theme-dark {
    --bg: #050505;
    --fg: #f7f7f7;
    --muted: #999999;
    --line: #252525;
}

body.theme-dark .brand-logo {
    filter: invert(1);
}

@media (max-width: 700px) {
    .site-header {
        align-items: flex-start;
        flex-direction: column;
        padding-top: 22px;
        padding-bottom: 22px;
    }

    .site-nav {
        width: 100%;
        justify-content: space-between;
    }

    .site-footer {
        align-items: flex-start;
        flex-direction: column;
    }
}
