:root {
    --bg: #eef1ed;
    --panel: #fbfcfa;
    --panel-alt: #f3f6f1;
    --text: #213029;
    --muted: #5e6c65;
    --line: #cfd7d1;
    --accent: #2f6a52;
    --accent-soft: #dbe8e0;
    --radius: 18px;
    --container: 1080px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Aptos", "Candara", "Segoe UI", sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #f7f9f5 0%, var(--bg) 100%);
    line-height: 1.6;
}

a {
    color: inherit;
}

.container {
    width: min(calc(100% - 2rem), var(--container));
    margin: 0 auto;
}

.site-header {
    border-bottom: 1px solid var(--line);
    background: rgba(251, 252, 250, 0.94);
    position: sticky;
    top: 0;
    backdrop-filter: blur(10px);
}

.header-wrap {
    min-height: 78px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.site-mark,
.site-submark,
.section-tag,
.summary-title {
    margin: 0;
}

.site-mark {
    font-weight: 700;
    letter-spacing: 0.04em;
}

.site-submark,
.section-tag,
.summary-title,
dt,
label {
    color: var(--muted);
    font-size: 0.84rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.chip-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.chip-nav a {
    text-decoration: none;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0.5rem 0.85rem;
    background: var(--panel);
}

.hero-block,
.section {
    padding: 2rem 0;
}

.hero-layout,
.section-head,
.archive-layout,
.contact-layout {
    display: grid;
    gap: 1.25rem;
}

.hero-layout,
.archive-layout,
.contact-layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
}

h1,
h2,
h3 {
    margin: 0 0 0.9rem;
    line-height: 1.12;
}

h1 {
    font-size: clamp(2.4rem, 5vw, 4.2rem);
    max-width: 13ch;
}

h2 {
    font-size: clamp(1.6rem, 3vw, 2.3rem);
}

.lead {
    max-width: 60ch;
    font-size: 1.08rem;
}

.summary-panel,
.rule-card,
.checklist-card,
.project-card,
.contact-form,
.legal-panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.35rem;
}

.summary-panel dl {
    margin: 1rem 0 0;
    display: grid;
    gap: 0.85rem;
}

.summary-panel dd {
    margin: 0.2rem 0 0;
}

.section-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    padding-bottom: 1rem;
}

.rule-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.rule-card h3,
.checklist-card h3 {
    font-size: 1.15rem;
}

.muted-band {
    background: var(--panel-alt);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.checklist-card ul {
    margin: 0;
    padding-left: 1.1rem;
}

.contact-form {
    display: grid;
    gap: 0.8rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 0.9rem 1rem;
    font: inherit;
    color: var(--text);
    background: #ffffff;
}

.consent-row {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.75rem;
    align-items: start;
}

.consent-row input {
    width: 18px;
    height: 18px;
    margin-top: 0.15rem;
}

button {
    min-height: 48px;
    border: 0;
    border-radius: 14px;
    background: var(--accent);
    color: #ffffff;
    font: inherit;
    cursor: pointer;
}

.inline-link {
    text-decoration: none;
    border-bottom: 1px solid currentColor;
}

.legal-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem 0;
}

.legal-panel {
    max-width: 820px;
}

.thanks-panel {
    text-align: center;
}

@media (max-width: 860px) {
    .header-wrap,
    .hero-layout,
    .section-head,
    .archive-layout,
    .contact-layout,
    .rule-grid {
        grid-template-columns: 1fr;
    }

    .header-wrap {
        padding: 0.9rem 0;
        align-items: flex-start;
    }
}