:root {
    --background: #0c0f14;
    --surface: #131821;
    --surface-2: #181f2b;
    --border: #293140;

    --text: #e9edf3;
    --muted: #939eaf;

    --accent: #8fd3ff;
    --accent-2: #b7a4ff;
    --danger: #ff718f;
    --gold: #edc063;

    --radius: 16px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(
            circle at top,
            rgba(143, 211, 255, 0.07),
            transparent 30%
        ),
        var(--background);
    color: var(--text);
    font-family:
        "Segoe UI",
        system-ui,
        -apple-system,
        sans-serif;
    line-height: 1.9;
}

a {
    color: inherit;
}

code,
.site-logo,
.eyebrow,
.result-label,
.feature-kicker {
    font-family:
        Consolas,
        "Courier New",
        monospace;
}

code {
    padding: 0.15em 0.4em;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 5px;
    color: #d9eaff;
}

.wrap {
    width: min(1100px, calc(100% - 40px));
    margin: 0 auto;
}

.article-width {
    width: min(760px, 100%);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(12, 15, 20, 0.82);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.site-logo {
    font-weight: 700;
    text-decoration: none;
}

.site-nav {
    display: flex;
    gap: 20px;
}

.site-nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.94rem;
}

.site-nav a:hover {
    color: var(--text);
}

.article-hero {
    padding: 120px 0 90px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.eyebrow {
    margin: 0 0 16px;
    color: var(--accent);
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.eyebrow-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.eyebrow {
    margin: 0;
}

.language-link {
    margin-left: auto;

    color: var(--muted);
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.88rem;
    text-decoration: none;
}

.language-link:hover {
    color: var(--accent);
}


.article-hero h1 {
    margin: 0;
    font-size: clamp(2.8rem, 7vw, 5.4rem);
    line-height: 1.05;
    letter-spacing: -0.05em;
}

.subtitle {
    margin: 18px 0 52px;
    color: var(--muted);
    font-size: 1.08rem;
}

.article-hero .intro {
    color: var(--text);
    font-size: 1.35rem;
    font-weight: 700;
}

.article-body {
    padding: 40px 0 100px;
}

.article-body section {
    padding: 72px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.article-body h2 {
    margin: 0 0 32px;
    font-size: clamp(1.6rem, 4vw, 2.25rem);
    line-height: 1.35;
    letter-spacing: -0.03em;
}

.article-body h2 span {
    color: var(--accent);
    font-family: Consolas, monospace;
    font-size: 0.7em;
}

.article-body p {
    margin: 0 0 22px;
}

.article-body ul {
    margin: 24px 0;
    padding-left: 1.4rem;
}

.article-body li {
    margin-bottom: 8px;
}

.equation {
    margin: 30px 0;
    padding: 22px 24px;
    overflow-x: auto;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);

    color: #e6efff;
    font-family:
        Consolas,
        "Courier New",
        monospace;
    font-size: 1.1rem;
    text-align: center;
}

.equation.multiline {
    line-height: 2;
}

.result-box {
    margin: 34px 0;
    padding: 28px;

    display: flex;
    flex-direction: column;
    gap: 4px;

    background:
        linear-gradient(
            135deg,
            rgba(143, 211, 255, 0.12),
            rgba(183, 164, 255, 0.06)
        );
    border: 1px solid rgba(143, 211, 255, 0.28);
    border-radius: var(--radius);
}

.result-label {
    color: var(--muted);
    font-size: 0.85rem;
}

.result-box strong {
    font-size: 2rem;
}

.result-box span:last-child {
    color: var(--accent);
}

.discovery {
    margin: 36px 0;
    padding: 28px;

    background: var(--surface);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
}

.discovery p {
    margin: 0;
}

.discovery-label {
    margin-bottom: 12px !important;
    color: var(--accent);
    font-family: Consolas, monospace;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.turn {
    margin-top: 38px !important;
    color: var(--gold);
    font-weight: 700;
    font-size: 1.15rem;
}

blockquote {
    margin: 34px 0;
    padding: 22px 26px;

    background: rgba(255, 255, 255, 0.025);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius) var(--radius) 0;

    font-size: 1.1rem;
    font-weight: 600;
}

.center-emphasis {
    margin: 34px 0 !important;
    color: var(--accent);
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
}

.table-wrap {
    margin: 30px 0;
    overflow-x: auto;
}

.table-wrap.compact {
    width: min(430px, 100%);
    margin-left: auto;
    margin-right: auto;
}

table {
    width: 100%;
    border-collapse: collapse;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

th,
td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

th {
    color: var(--muted);
    font-size: 0.86rem;
}

tr:last-child td {
    border-bottom: none;
}

.zero td {
    color: var(--danger);
    font-weight: 700;
}

.feature-section {
    margin: 40px calc(50% - 50vw);
    padding: 100px max(20px, calc((100vw - 760px) / 2)) !important;

    background:
        radial-gradient(
            circle at center,
            rgba(143, 211, 255, 0.11),
            transparent 55%
        ),
        #10151d;

    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border) !important;
}

.feature-kicker {
    margin-bottom: 20px !important;
    color: var(--muted);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.8rem;
}

.digits {
    margin: 0 auto 28px;

    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;

    max-width: 440px;
}

.digits span {
    padding: 22px 0;

    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 14px;

    color: var(--accent);
    font-family: Consolas, monospace;
    font-size: clamp(2rem, 7vw, 4rem);
    font-weight: 700;
    text-align: center;
}

.feature-section h2 {
    text-align: center;
}

.feature-statement {
    margin: 34px 0 !important;
    font-size: 1.65rem;
    font-weight: 700;
    text-align: center;
}

.number-line {
    margin: 36px 0;
    padding: 20px;

    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;

    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius);

    font-family: Consolas, monospace;
}

.number-line strong {
    color: var(--danger);
}

.holes {
    margin: 30px 0;
    display: grid;
    gap: 10px;
}

.holes div {
    padding: 14px 18px;

    display: flex;
    justify-content: space-between;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
}

.holes span {
    color: var(--danger);
}

.big-result {
    margin: 40px 0;
    padding: 34px 20px;

    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;

    background:
        linear-gradient(
            135deg,
            rgba(143, 211, 255, 0.12),
            rgba(183, 164, 255, 0.09)
        );
    border: 1px solid rgba(143, 211, 255, 0.35);
    border-radius: var(--radius);

    text-align: center;
}

.big-result strong {
    font-family: Consolas, monospace;
    font-size: clamp(1.15rem, 4vw, 1.65rem);
}

.big-result small {
    color: var(--accent);
}

.comparison {
    margin: 34px 0;

    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.comparison div {
    padding: 20px 10px;

    display: flex;
    flex-direction: column;
    gap: 8px;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;

    text-align: center;
}

.comparison span {
    color: var(--muted);
    font-size: 0.8rem;
}

.comparison strong {
    font-family: Consolas, monospace;
    font-size: 0.95rem;
}

.three-effects {
    margin: 36px 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.three-effects article {
    padding: 22px;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.three-effects span {
    color: var(--accent);
    font-family: Consolas, monospace;
    font-size: 0.8rem;
}

.three-effects h3 {
    margin: 12px 0;
}

.three-effects p {
    margin: 0;
    color: var(--muted);
    font-size: 0.94rem;
}

.final-findings {
    margin: 42px 0;
    display: grid;
    gap: 14px;
}

.final-findings div {
    padding: 24px;

    display: flex;
    flex-direction: column;
    gap: 8px;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.final-findings span {
    color: var(--muted);
    font-family: Consolas, monospace;
    font-size: 0.8rem;
}

.final-findings .highlight {
    border-color: var(--danger);
}

.final-findings .highlight strong {
    color: var(--danger);
    font-size: 2.2rem;
}

.final-line {
    margin: 42px 0 !important;
    color: var(--accent);
    font-size: 1.45rem;
    font-weight: 700;
}

.solver-cta {
    margin-top: 32px;
    padding: 22px 20px;

    background: #15181d;

    border: 1px solid #292e36;
    border-left: 3px solid #8fd3ff;
}

.solver-cta-label {
    margin: 0 0 6px;

    color: #9299a3;

    font-family: monospace;
    font-size: 0.85rem;
}

.solver-cta a {
    color: #8fd3ff;

    font-weight: 600;
    text-decoration: none;
}

.solver-cta a:hover {
    color: #e8e8e8;
}


.site-footer {
    padding: 30px 0 42px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 20px;

    color: var(--muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 18px;
}

.footer-links a {
    color: var(--muted);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--text);
}

@media (max-width: 760px) {
    .header-inner {
        padding: 14px 0;
        align-items: flex-start;
        flex-direction: column;
    }

    .article-hero {
        padding: 76px 0 60px;
    }

    .article-body section {
        padding: 54px 0;
    }

    .three-effects,
    .comparison {
        grid-template-columns: 1fr;
    }

    .feature-section {
        padding-top: 70px !important;
        padding-bottom: 70px !important;
    }

    .footer-inner {
        flex-direction: column;
    }
}