:root {
    --bg: #f4f6f5;
    --surface: #ffffff;
    --surface-muted: #f7f8f7;
    --ink: #12202b;
    --muted: #5c6a73;
    --border: #dde3df;
    --border-strong: #cfd8d2;
    --accent: #123c38;
    --accent-2: #245c55;
    --accent-soft: #e9f1ef;
    --dark: #0c1715;
    --radius-xl: 28px;
    --radius-md: 16px;
    --shadow-sm: 0 8px 20px rgba(18, 32, 43, 0.05);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Manrope', Arial, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(36, 92, 85, 0.08), transparent 24%),
        linear-gradient(180deg, #fbfbfa 0%, var(--bg) 100%);
    color: var(--ink);
}

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

.nav {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(221, 227, 223, 0.85);
}

.nav-inner,
.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.nav-inner {
    height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
}

.brand-mark {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    background: var(--accent);
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 18px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.hero {
    padding: 72px 0 56px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    padding: 8px 13px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.82);
    color: var(--accent);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    letter-spacing: -0.035em;
    color: #0f1720;
}

h1 {
    max-width: 920px;
    margin: 22px 0 22px;
    font-size: clamp(40px, 6vw, 78px);
    line-height: 0.96;
}

.lead {
    max-width: 760px;
    margin: 0;
    color: var(--muted);
    font-size: 19px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 15px 22px;
    font-weight: 800;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 12px 24px rgba(18, 60, 56, 0.16);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid var(--border-strong);
    color: var(--ink);
}

.btn-primary:hover,
.btn-secondary:hover {
    transform: translateY(-2px);
}

.layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 42px;
    align-items: start;
    padding-bottom: 70px;
}

.article,
.aside-card,
.related-card,
.cta-panel {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.article {
    padding: clamp(24px, 4vw, 46px);
}

.article h2 {
    margin: 42px 0 14px;
    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.08;
}

.article h3 {
    margin: 28px 0 10px;
    font-size: 22px;
}

.article p,
.article li {
    color: var(--muted);
    font-size: 16px;
    line-height: 1.85;
}

.article ul,
.article ol {
    padding-left: 22px;
}

.note {
    margin: 28px 0;
    padding: 22px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--surface-muted);
}

.aside {
    position: sticky;
    top: 100px;
    display: grid;
    gap: 16px;
}

.aside-card {
    padding: 22px;
}

.aside-card h2,
.aside-card h3 {
    margin: 0 0 12px;
    font-size: 20px;
}

.aside-card p {
    margin: 0 0 18px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

.mini-list {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.mini-list a {
    display: block;
    color: var(--accent);
    font-weight: 800;
    font-size: 14px;
    line-height: 1.5;
}

.related {
    padding: 54px 0 72px;
    border-top: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.56);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 22px;
}

.related-card {
    padding: 22px;
}

.related-card h3 {
    margin: 0 0 10px;
    font-size: 18px;
}

.related-card p {
    margin: 0 0 16px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

.text-link {
    color: var(--accent);
    font-size: 14px;
    font-weight: 900;
}

.cta-section {
    background: var(--dark);
    color: #fff;
    padding: 70px 0;
}

.cta-panel {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.12);
    padding: clamp(26px, 5vw, 42px);
}

.cta-panel h2 {
    margin: 0 0 14px;
    color: #fff;
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.08;
}

.cta-panel p {
    max-width: 760px;
    color: #cbd5d1;
    font-size: 17px;
    line-height: 1.8;
}

.footer {
    background: var(--dark);
    color: #cbd5d1;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 30px 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    font-size: 14px;
}

@media (max-width: 900px) {
    .nav-links {
        display: none;
    }

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

    .aside {
        position: static;
    }

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