:root {
    color-scheme: light;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    background: #f4f6f3;
    color: #173027;
}

* { box-sizing: border-box; }
body { margin: 0; }
.shell { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }
.header { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { color: #173027; font-size: 1.05rem; font-weight: 760; text-decoration: none; }
nav { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
nav a, .link-button { color: #335e4b; text-decoration: none; }
.link-button { appearance: none; background: transparent; border: 0; padding: 0; font: inherit; cursor: pointer; }
.inline { display: inline; }
.hero, .card { background: #fff; border: 1px solid #dce5de; border-radius: 18px; box-shadow: 0 12px 34px rgba(25, 55, 42, .07); }
.hero { margin-top: 4rem; padding: clamp(2rem, 7vw, 5rem); }
.hero h1 { max-width: 760px; margin: 0; font-size: clamp(2.2rem, 7vw, 5.2rem); line-height: .98; letter-spacing: -.055em; }
.hero p { max-width: 680px; color: #5d7168; font-size: 1.1rem; line-height: 1.65; }
.card { margin: 2rem auto; padding: 2rem; max-width: 720px; }
.wide { max-width: 1120px; }
h1, h2 { letter-spacing: -.025em; }
label { display: block; margin: 1rem 0 .4rem; font-weight: 650; }
input, select { width: 100%; padding: .8rem .9rem; border: 1px solid #b9c9c0; border-radius: 10px; font: inherit; background: #fff; }
input[type="checkbox"] { width: auto; }
button, .button { display: inline-block; margin-top: 1.2rem; padding: .78rem 1rem; border: 0; border-radius: 10px; background: #1b6449; color: #fff; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.button.secondary, button.secondary { background: #e8efe9; color: #24483a; }
.notice { padding: 1rem; border-radius: 12px; background: #e9f4ed; color: #24503d; }
.error, .validation-summary-errors { color: #9a302e; }
.muted { color: #64776f; }
table { width: 100%; border-collapse: collapse; font-size: .93rem; }
th, td { text-align: left; padding: .72rem; border-bottom: 1px solid #e3e9e5; vertical-align: top; }
code { overflow-wrap: anywhere; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.metric { background: #f4f8f5; border-radius: 12px; padding: 1rem; }
@media (max-width: 640px) { .header { align-items: flex-start; padding: 1rem 0; flex-direction: column; } .hero { margin-top: 1rem; } }