:root {
    color-scheme: dark;
    background: #000;
    color: #c9ffd4;
    font-family: Menlo, Monaco, "Noto Sans Devanagari", "Courier New", monospace;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 80% -10%, rgba(0, 255, 0, 0.09), transparent 34rem),
        #000;
}

a {
    color: #36ff68;
    text-underline-offset: 4px;
}

a:hover,
a:focus-visible {
    color: #fff;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    z-index: 10;
    padding: 10px 14px;
    color: #000;
    background: #0f0;
}

.skip-link:focus {
    top: 12px;
}

.site-header,
footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    max-width: 1080px;
    margin: 0 auto;
    padding: 20px;
}

.site-header {
    border-bottom: 1px solid #174d27;
}

.brand {
    display: inline-flex;
    gap: 9px;
    align-items: center;
    color: #fff;
    font-weight: 700;
    text-decoration: none;
}

.brand-prompt {
    color: #0f0;
}

.site-header nav,
footer nav {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.site-header nav a,
footer nav a {
    font-size: 0.9rem;
    text-decoration: none;
}

main {
    max-width: 820px;
    margin: 0 auto;
    padding: 58px 20px 40px;
}

.eyebrow,
.section-kicker {
    color: #57bf70;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

h1,
h2,
h3 {
    color: #fff;
    line-height: 1.25;
}

h1 {
    max-width: 760px;
    margin: 12px 0 20px;
    font-size: clamp(2rem, 6vw, 3.7rem);
}

h2 {
    margin: 48px 0 14px;
    font-size: clamp(1.35rem, 3.5vw, 1.8rem);
}

h3 {
    margin: 0 0 8px;
    font-size: 1.05rem;
}

p,
li {
    color: #a8d9b2;
    font-size: 1.02rem;
    line-height: 1.8;
}

.hero-copy {
    max-width: 720px;
    color: #c9ffd4;
    font-size: 1.14rem;
}

.note {
    padding: 16px 18px;
    margin: 28px 0;
    color: #c9ffd4;
    background: #031006;
    border-left: 3px solid #0f0;
}

.preset-grid,
.related-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 20px 0;
}

.card {
    padding: 18px;
    background: rgba(3, 16, 6, 0.92);
    border: 1px solid #174d27;
}

.card p {
    margin: 8px 0 16px;
    font-size: 0.96rem;
}

.button-link {
    display: inline-block;
    padding: 9px 12px;
    color: #000;
    font-weight: 700;
    text-decoration: none;
    background: #0f0;
    border: 1px solid #0f0;
}

.button-link:hover,
.button-link:focus-visible {
    color: #0f0;
    background: #000;
}

ol,
ul {
    padding-left: 24px;
}

li + li {
    margin-top: 10px;
}

footer {
    align-items: flex-start;
    flex-direction: column;
    margin-top: 30px;
    border-top: 1px solid #174d27;
}

footer p {
    margin: 0;
    font-size: 0.85rem;
}

@media (max-width: 680px) {
    .site-header {
        align-items: flex-start;
        flex-direction: column;
    }

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

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}