:root {
    color-scheme: dark;
    --ink: #f3f6ef;
    --ink-soft: #bac5b3;
    --paper: #0a0f08;
    --paper-raised: #11180e;
    --moss: #182316;
    --line: rgba(164, 223, 126, 0.16);
    --lime: #8ee15e;
    --orange: #ff9854;
    --measure: 720px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        linear-gradient(90deg, transparent 0, transparent calc(50% - 1px), rgba(142, 225, 94, 0.025) 50%, transparent calc(50% + 1px)),
        var(--paper);
    color: var(--ink);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 17px;
    line-height: 1.75;
}

a {
    color: inherit;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
    outline: 3px solid var(--orange);
    outline-offset: 4px;
}

.content-header {
    position: relative;
    z-index: 5;
    display: flex;
    width: min(1180px, calc(100% - 40px));
    min-height: 74px;
    align-items: center;
    justify-content: space-between;
    margin: 0 auto;
    border-bottom: 1px solid var(--line);
}

.content-brand {
    color: var(--ink);
    font-family: "Playfair Display", Georgia, serif;
    font-size: 1.35rem;
    font-weight: 800;
    text-decoration: none;
}

.content-brand span {
    color: var(--lime);
}

.content-nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

.content-nav a {
    color: var(--ink-soft);
    font-size: 0.84rem;
    font-weight: 700;
    text-decoration: none;
}

.content-nav a:hover {
    color: var(--ink);
}

.content-nav .nav-cta {
    min-height: 42px;
    padding: 8px 15px;
    border: 1px solid rgba(142, 225, 94, 0.26);
    border-radius: 999px;
    color: var(--lime);
}

.article-hero,
.page-hero {
    display: grid;
    width: min(1180px, calc(100% - 40px));
    grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.65fr);
    gap: clamp(44px, 8vw, 110px);
    align-items: end;
    padding: clamp(72px, 12vw, 150px) 0 clamp(52px, 8vw, 92px);
    margin: 0 auto;
    border-bottom: 1px solid var(--line);
}

.page-hero {
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
}

.content-eyebrow,
.field-label {
    margin: 0 0 16px;
    color: var(--lime);
    font-size: 0.72rem;
    font-weight: 850;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.article-hero h1,
.page-hero h1 {
    max-width: 900px;
    margin: 0;
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(3rem, 8vw, 6.8rem);
    font-weight: 700;
    line-height: 0.94;
    letter-spacing: -0.055em;
}

.article-hero h1 em,
.page-hero h1 em {
    color: var(--lime);
    font-weight: 600;
}

.hero-summary {
    margin: 0;
    color: var(--ink-soft);
    font-size: clamp(1rem, 1.6vw, 1.15rem);
}

.article-meta {
    display: grid;
    gap: 14px;
    padding: 22px 0 4px;
    border-top: 1px solid var(--line);
}

.article-meta p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 0.82rem;
}

.article-meta strong {
    display: block;
    color: var(--ink);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.article-layout {
    display: grid;
    width: min(1180px, calc(100% - 40px));
    grid-template-columns: minmax(190px, 0.35fr) minmax(0, 1fr);
    gap: clamp(44px, 8vw, 110px);
    align-items: start;
    margin: 0 auto;
    padding: clamp(64px, 9vw, 118px) 0;
}

.article-figure {
    width: min(1180px, calc(100% - 40px));
    margin: clamp(38px, 6vw, 72px) auto 0;
}

.article-figure img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 1px solid var(--line);
    object-fit: cover;
}

.article-figure figcaption {
    max-width: 720px;
    padding: 12px 0 0;
    color: #7f8d78;
    font-size: 0.72rem;
    line-height: 1.5;
}

.article-rail {
    position: sticky;
    top: 28px;
    padding-top: 8px;
}

.article-rail ol {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 0;
    list-style: none;
    counter-reset: rail;
}

.article-rail li {
    counter-increment: rail;
}

.article-rail a {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 8px;
    color: #8f9d88;
    font-size: 0.78rem;
    line-height: 1.35;
    text-decoration: none;
}

.article-rail a::before {
    color: var(--lime);
    content: counter(rail, decimal-leading-zero);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 0.68rem;
}

.article-rail a:hover {
    color: var(--ink);
}

.article-body {
    max-width: var(--measure);
}

.article-body > p:first-child {
    color: #dfe7d9;
    font-size: 1.23rem;
    line-height: 1.65;
}

.article-body h2 {
    padding-top: 1.8em;
    margin: 0 0 0.65em;
    color: var(--ink);
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(2rem, 4vw, 3.1rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.article-body h3 {
    margin: 2em 0 0.55em;
    color: var(--ink);
    font-size: 1.12rem;
    line-height: 1.35;
}

.article-body p,
.article-body li {
    color: var(--ink-soft);
}

.article-body a {
    color: #b5f18f;
    text-decoration-color: rgba(181, 241, 143, 0.38);
    text-underline-offset: 3px;
}

.article-body ul,
.article-body ol {
    padding-left: 1.25em;
}

.article-body li + li {
    margin-top: 0.6em;
}

.answer-block,
.caution-block,
.field-note {
    margin: 36px 0;
    padding: 24px 26px;
    border-left: 3px solid var(--lime);
    background: var(--moss);
}

.caution-block {
    border-left-color: var(--orange);
}

.answer-block p,
.caution-block p,
.field-note p {
    margin: 0;
}

.checklist {
    display: grid;
    gap: 1px;
    padding: 1px;
    margin: 30px 0;
    background: var(--line);
    list-style: none;
}

.checklist li {
    position: relative;
    padding: 16px 18px 16px 48px;
    margin: 0 !important;
    background: var(--paper-raised);
}

.checklist li::before {
    position: absolute;
    top: 17px;
    left: 18px;
    color: var(--lime);
    content: "✓";
    font-weight: 900;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    padding: 1px;
    margin: 34px 0;
    background: var(--line);
}

.comparison-grid > div {
    padding: 24px;
    background: var(--paper-raised);
}

.comparison-grid h3 {
    margin-top: 0;
}

.content-cta {
    margin-top: 70px;
    padding: 30px;
    border: 1px solid rgba(142, 225, 94, 0.22);
    background: linear-gradient(135deg, rgba(142, 225, 94, 0.09), rgba(255, 152, 84, 0.035));
}

.content-cta h2 {
    padding: 0;
    margin-top: 0;
}

.content-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 22px;
}

.content-button {
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    padding: 10px 17px;
    border: 1px solid rgba(142, 225, 94, 0.32);
    border-radius: 999px;
    color: #dffbd0 !important;
    font-size: 0.86rem;
    font-weight: 800;
    text-decoration: none !important;
}

.content-button.primary {
    border-color: var(--lime);
    background: var(--lime);
    color: #0b1208 !important;
}

.content-footer {
    width: min(1180px, calc(100% - 40px));
    padding: 36px 0 48px;
    margin: 0 auto;
    border-top: 1px solid var(--line);
    color: #7f8d78;
    font-size: 0.78rem;
}

.content-footer nav {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 10px;
}

.content-footer a {
    color: var(--ink-soft);
}

.guide-grid {
    display: grid;
    width: min(1180px, calc(100% - 40px));
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    padding: 1px;
    margin: clamp(52px, 8vw, 96px) auto;
    background: var(--line);
}

.guide-card {
    min-height: 320px;
    padding: clamp(26px, 4vw, 46px);
    background: var(--paper-raised);
    text-decoration: none;
}

.guide-card:first-child {
    grid-row: span 2;
    min-height: 641px;
    background:
        linear-gradient(180deg, transparent, rgba(10, 15, 8, 0.92)),
        radial-gradient(circle at 70% 15%, rgba(142, 225, 94, 0.17), transparent 34%),
        var(--paper-raised);
}

.guide-card:hover {
    background-color: #151f12;
}

.guide-card h2 {
    max-width: 520px;
    margin: 60px 0 14px;
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(2rem, 4vw, 3.6rem);
    line-height: 1.02;
    letter-spacing: -0.04em;
}

.guide-card:not(:first-child) h2 {
    margin-top: 28px;
    font-size: clamp(1.65rem, 3vw, 2.5rem);
}

.guide-card p {
    max-width: 560px;
    color: var(--ink-soft);
}

.about-grid {
    display: grid;
    width: min(980px, calc(100% - 40px));
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    padding: 1px;
    margin: clamp(52px, 8vw, 96px) auto;
    background: var(--line);
}

.about-panel {
    padding: clamp(28px, 5vw, 56px);
    background: var(--paper-raised);
}

.about-panel.wide {
    grid-column: 1 / -1;
}

.about-panel h2 {
    margin: 0 0 16px;
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(1.8rem, 3vw, 2.7rem);
    line-height: 1.1;
}

.about-panel p,
.about-panel li {
    color: var(--ink-soft);
}

@media (max-width: 820px) {
    .article-hero,
    .page-hero,
    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-rail {
        position: static;
        padding-bottom: 28px;
        border-bottom: 1px solid var(--line);
    }

    .article-rail ol {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .guide-grid,
    .about-grid {
        grid-template-columns: 1fr;
    }

    .guide-card:first-child {
        grid-row: auto;
        min-height: 430px;
    }

    .about-panel.wide {
        grid-column: auto;
    }
}

@media (max-width: 560px) {
    body {
        font-size: 16px;
    }

    .content-header {
        width: min(100% - 28px, 1180px);
    }

    .content-nav a:not(.nav-cta) {
        display: none;
    }

    .article-hero,
    .page-hero,
    .article-layout,
    .article-figure,
    .guide-grid,
    .about-grid,
    .content-footer {
        width: min(100% - 28px, 1180px);
    }

    .article-hero h1,
    .page-hero h1 {
        font-size: clamp(2.7rem, 15vw, 4.2rem);
    }

    .article-rail ol,
    .comparison-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}