:root {
    color-scheme: light;
    --ink: #142128;
    --muted: #52646d;
    --paper: #f6f7f2;
    --panel: #ffffff;
    --line: #d7ded9;
    --accent: #126b62;
    --accent-dark: #0a4944;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
}

a { color: var(--accent-dark); }

.site-header,
footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
}

.site-header { min-height: 4.5rem; }
.site-header nav, .site-header form, footer nav { display: inline-flex; gap: 1rem; }
.site-header nav { align-items: center; }

.brand {
    color: var(--ink);
    font-weight: 800;
    text-decoration: none;
    letter-spacing: -.02em;
}

.brand span {
    margin-left: .35rem;
    color: var(--muted);
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.link-button {
    border: 0;
    padding: 0;
    color: var(--accent-dark);
    background: transparent;
    font: inherit;
    text-decoration: underline;
    cursor: pointer;
}

main {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
}

.hero {
    min-height: 32rem;
    display: grid;
    align-content: center;
    padding: 5rem clamp(1.25rem, 5vw, 5rem);
    border: 1px solid var(--line);
    border-radius: 1.4rem;
    background:
        radial-gradient(circle at 85% 15%, rgba(18, 107, 98, .18), transparent 30%),
        var(--panel);
    box-shadow: 0 1.2rem 3rem rgba(20, 33, 40, .08);
}

.hero.compact { min-height: 24rem; }

.eyebrow {
    margin: 0 0 .8rem;
    color: var(--accent);
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

h1 {
    max-width: 16ch;
    margin: 0;
    font-size: clamp(2.6rem, 7vw, 5.7rem);
    line-height: .98;
    letter-spacing: -.055em;
}

.compact h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }

.lede {
    max-width: 43rem;
    margin: 1.5rem 0 0;
    color: var(--muted);
    font-size: clamp(1.05rem, 2vw, 1.28rem);
    line-height: 1.65;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}

.button {
    display: inline-block;
    padding: .85rem 1.2rem;
    border-radius: .65rem;
    color: #fff;
    background: var(--accent-dark);
    font-weight: 750;
    text-decoration: none;
}

.secondary { font-weight: 700; }

.foundation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin: 1.5rem 0;
    padding: 2.5rem;
    border: 1px solid var(--line);
    border-radius: 1rem;
    background: var(--panel);
}

.foundation h2 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.6rem); }
.foundation ul { margin: 0; padding-left: 1.25rem; line-height: 2; }

footer {
    padding-block: 2rem;
    color: var(--muted);
    font-size: .9rem;
}

.auth-shell {
    display: grid;
    place-items: center;
    min-height: calc(100vh - 9rem);
    padding: 2rem 0 4rem;
}

.auth-card {
    width: min(38rem, 100%);
    padding: clamp(1.5rem, 5vw, 3rem);
    border: 1px solid var(--line);
    border-radius: 1rem;
    background: var(--panel);
    box-shadow: 0 1rem 2.5rem rgba(20, 33, 40, .08);
}

.auth-card h1, .prose h1 {
    max-width: none;
    font-size: clamp(2.2rem, 5vw, 4rem);
}

.stack-form {
    display: grid;
    gap: .75rem;
    margin-top: 2rem;
}

.stack-form > label:not(.check-row) { margin-top: .5rem; font-weight: 750; }

.stack-form input[type="text"],
.stack-form input[type="email"],
.stack-form input[type="password"] {
    width: 100%;
    min-height: 2.8rem;
    padding: .65rem .75rem;
    border: 1px solid #aab8b1;
    border-radius: .45rem;
    background: #fff;
    color: var(--ink);
    font: inherit;
}

.stack-form select {
    width: 100%;
    min-height: 2.8rem;
    padding: .65rem .75rem;
    border: 1px solid #aab8b1;
    border-radius: .45rem;
    background: #fff;
    color: var(--ink);
    font: inherit;
}

.stack-form input:focus { outline: 3px solid rgba(18, 107, 98, .22); border-color: var(--accent); }

.check-row { display: flex; align-items: flex-start; gap: .65rem; margin-top: .5rem; line-height: 1.45; }
.check-row input { margin-top: .25rem; }
.field-hint { color: var(--muted); font-size: .9rem; }
.field-error, .validation-summary { color: #922b21; }
.validation-summary:empty { display: none; }
.button-wide { width: 100%; border: 0; margin-top: .75rem; cursor: pointer; font: inherit; }

.auth-links {
    display: flex;
    flex-wrap: wrap;
    gap: .65rem 1.25rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
    font-size: .95rem;
}

.inline-form {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .75rem;
    margin-top: 2rem;
}

.inline-form select {
    min-height: 2.8rem;
    padding: .55rem .75rem;
    border: 1px solid #aab8b1;
    border-radius: .45rem;
    background: #fff;
    font: inherit;
}

.prose {
    max-width: 52rem;
    margin: 2rem auto 5rem;
    padding: clamp(1.5rem, 5vw, 3rem);
    border: 1px solid var(--line);
    border-radius: 1rem;
    background: var(--panel);
}

.wide-prose { max-width: 68rem; }
.notice-success { padding: .8rem 1rem; border-left: .3rem solid var(--accent); background: #eaf5f1; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: .7rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }
.mail-card { margin-top: 1.5rem; padding: 1.25rem; border: 1px solid var(--line); border-radius: .7rem; }
.mail-card pre { overflow-wrap: anywhere; white-space: pre-wrap; color: var(--ink); font: .88rem/1.5 ui-monospace, monospace; }

.prose h2 { margin-top: 2.25rem; }
.prose p { line-height: 1.7; }
.document-integrity { color: var(--muted); font-family: ui-monospace, monospace; font-size: .78rem; }

.status-grid {
    display: grid;
    grid-template-columns: minmax(12rem, 1fr) 1fr;
    gap: .5rem 1rem;
}

.status-grid dt { font-weight: 750; }
.status-grid dd { margin: 0; }

@media (max-width: 720px) {
    .site-header { align-items: flex-start; padding-block: 1rem; }
    .site-header nav { flex-wrap: wrap; justify-content: flex-end; }
    .brand span { display: block; margin: .15rem 0 0; }
    .hero { min-height: auto; padding-block: 4rem; }
    .foundation { grid-template-columns: 1fr; gap: 1.5rem; padding: 1.5rem; }
}