/* Strategic Register overlay — Digest keeps the layout; this carries identity.
   Ghost themes set html{font-size:62.5%}, so 1rem = 10px here: the repo's
   24px body is 2.4rem, not 1.5rem. */
:root {
    --font-serif: Newsreader, Charter, Georgia, "Times New Roman", serif;
    --font-sans: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    --gh-font-body: var(--font-serif);
    --gh-font-heading: var(--font-serif);

    --color-primary-text: #1a1a18;
    --color-secondary-text: #6d6a62;
    --color-white: #fbfaf6;
    --color-lighter-gray: #f1eee5;
    --color-light-gray: #dcd7ca;
    --color-mid-gray: #a8a49a;
    --color-dark-gray: #3b3a34;
    --color-darker-gray: #1a1a18;

    --register-petrol: #0f4c50;
    --register-petrol-deep: #0b3a3d;
    --register-signal: #d4f04a;
    --register-signal-wash: rgba(212, 240, 74, .85);

    --content-width: 700px;
    --container-width: 1320px;
    --gap: 4.4rem;
    --h1-size: 6.2rem;
}

@media (max-width: 767px) {
    :root {
        --h1-size: 3.4rem !important;
        --gap: 2.2rem;
    }
}

body {
    font-size: 2.4rem;
    line-height: 1.54;
}

.gh-content {
    font-size: 2.4rem;
    line-height: 1.54;
}

.gh-article-title,
.gh-pagehead-title {
    font-weight: 400;
    letter-spacing: -.03em;
    line-height: 1.02;
}

.gh-article-excerpt {
    font-size: 2.4rem;
    line-height: 1.54;
    color: var(--color-dark-gray);
}

.gh-content em,
.gh-article-excerpt em {
    font-style: italic;
}

.gh-content strong {
    font-weight: 600;
}

.home-lede {
    font-size: 2.4rem;
    line-height: 1.54;
    color: var(--color-dark-gray);
}

.mechanism-statement {
    margin: var(--gap) 0;
    padding-left: 2.4rem;
    border-left: 5px solid var(--ghost-accent-color, #285ff4);
}

.mechanism-statement-text {
    font-size: 2.4rem;
    line-height: 1.54;
    color: var(--color-dark-gray);
}

.home-signoff {
    margin-top: var(--gap);
    font-style: italic;
}

.home-hero {
    margin: 0 auto var(--gap);
}

.home-hero img {
    display: block;
    width: 100%;
    height: auto;
}

.cb-video,
.cb-social {
    margin: var(--gap) auto;
}

.cb-video iframe {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 0;
}

.cb-social a {
    display: block;
}

.cb-social img {
    display: block;
    width: 100%;
    height: auto;
    margin: 0;
}

.cb-video figcaption,
.cb-social figcaption {
    margin-top: .8rem;
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--color-dark-gray);
    text-transform: none;
    letter-spacing: 0;
}

.gh-head-menu a,
.gh-head-actions a,
.gh-section-title span,
.gh-article-label,
.gh-navigation-link,
.gh-card-footer,
figcaption {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    letter-spacing: .11em;
    text-transform: uppercase;
}

.gh-head-menu {
    justify-content: center;
}

.gh-section-title span,
.gh-article-label {
    font-size: 1.1rem;
    letter-spacing: .2em;
    color: var(--color-secondary-text);
}

.gh-btn,
.gh-primary-btn,
.gh-head-btn,
.gh-outline-btn,
.register-contact-form button {
    border-radius: 0;
    background: var(--register-petrol);
    color: #f2f1ea;
    font-family: var(--font-mono);
    font-size: 1.2rem;
    letter-spacing: .11em;
    text-transform: uppercase;
}

.gh-btn:hover,
.gh-primary-btn:hover,
.gh-head-btn:hover,
.gh-outline-btn:hover,
.register-contact-form button:hover {
    background: var(--register-petrol-deep);
    opacity: 1;
}

.gh-card,
.gh-subscribe,
.gh-subscribe-input,
.gh-article-image img,
.gh-article-tag,
:not(pre) > code {
    border-radius: 0;
}

.gh-content blockquote:not([class]) {
    border-left: 5px solid var(--register-signal);
    padding-left: 2.4rem;
}

::selection {
    background: var(--register-signal-wash);
    color: #1a1a18;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--register-petrol);
    outline-offset: 2px;
}

.gh-head {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-light-gray);
}

.gh-foot {
    background: var(--color-darker-gray);
    white-space: normal;
}

.gh-foot-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    align-items: start;
    gap: var(--gap);
    white-space: normal;
}

.gh-foot-mark {
    display: block;
    height: 2.6rem;
    width: auto;
    margin-bottom: 1.6rem;
    filter: invert(1);
}

.gh-foot-tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.9rem;
    line-height: 1.5;
    color: var(--color-light-gray);
    max-width: 40ch;
}

.gh-foot-col-heading {
    margin-bottom: 1.2rem;
    font-family: var(--font-mono);
    font-size: 1.3rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--color-mid-gray);
}

.gh-foot-links {
    display: flex;
    flex-direction: column;
    gap: .8rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.gh-foot-links a {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    color: var(--color-white);
    text-transform: none;
    letter-spacing: 0;
}

.gh-foot-legal {
    margin: var(--gap) 0 0;
    padding-top: 2.4rem;
    border-top: 1px solid rgba(251, 250, 246, .15);
    text-align: center;
    font-family: var(--font-mono);
    font-size: 1.3rem;
    letter-spacing: .11em;
    text-transform: uppercase;
    color: var(--color-mid-gray);
}

.gh-foot-heart {
    padding: 0;
    border: 0;
    background: none;
    font: inherit;
    color: var(--register-signal);
    cursor: pointer;
}

.gh-foot-heart:hover {
    opacity: .8;
}

.gh-foot-note {
    display: block;
    margin-top: 0.6rem;
    font-family: var(--font-mono);
    text-transform: none;
    letter-spacing: .04em;
    font-size: 1.2rem;
    color: var(--color-mid-gray);
}

.gh-foot-heart-tooltip {
    position: fixed;
    z-index: 9999;
    padding: 0.8rem 1.2rem;
    background: var(--register-petrol);
    color: #f2f1ea;
    font-family: var(--font-mono);
    font-size: 1.2rem;
    letter-spacing: 0.04em;
    border-radius: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.gh-foot-heart-tooltip.is-visible {
    opacity: 1;
}

@media (max-width: 767px) {
    .gh-foot-inner {
        grid-template-columns: 1fr;
        gap: 3.2rem;
    }
}