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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--color-ink);
    background:
        radial-gradient(circle at top right, rgba(184, 106, 61, 0.08), transparent 22%),
        radial-gradient(circle at left 20%, rgba(36, 87, 214, 0.08), transparent 25%),
        linear-gradient(180deg, #fffdf9 0%, var(--color-paper) 100%);
    font-family: var(--font-sans);
    line-height: 1.6;
}

img {
    display: block;
    max-width: 100%;
}

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

p,
ul,
ol {
    margin: 0 0 var(--space-4);
}

h1,
h2,
h3,
h4 {
    margin: 0 0 var(--space-4);
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.05;
}

h1 {
    font-size: clamp(2.6rem, 7vw, 5.75rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.65rem);
}

.container,
.container-narrow {
    width: min(100% - 2rem, var(--container));
    margin: 0 auto;
}

.container-narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: var(--space-8) 0;
}

.section-surface {
    background: var(--color-surface);
}

.section-border-top {
    border-top: 1px solid var(--color-border);
}

.section-hero-simple {
    padding-top: var(--space-9);
    padding-bottom: var(--space-6);
}

.hero-home {
    padding: var(--space-9) 0 var(--space-8);
    position: relative;
}

.hero-home::before {
    position: absolute;
    inset: 0 0 auto;
    height: 65%;
    background:
        radial-gradient(circle at top right, rgba(36, 87, 214, 0.12), transparent 30%),
        radial-gradient(circle at left center, rgba(31, 90, 77, 0.12), transparent 32%);
    content: "";
    pointer-events: none;
}

.hero-home-inner,
.layout-two-up,
.site-header-inner,
.site-footer-inner {
    display: grid;
    gap: var(--space-6);
}

.hero-home-inner,
.layout-two-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
}

.hero-copy {
    position: relative;
    z-index: 1;
}

.hero-copy h1 {
    max-width: 12ch;
}

.hero-aside {
    position: relative;
    overflow: hidden;
}

.hero-aside::before {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-highlight));
    content: "";
}

.hero-aside-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.hero-note {
    display: grid;
    gap: var(--space-1);
    margin-top: var(--space-5);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}

.hero-note-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.hero-note-copy {
    color: var(--color-muted);
}

.hero-marks {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.hero-mark {
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border);
}

.hero-mark-value {
    display: block;
    margin-bottom: var(--space-1);
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
}

.hero-mark-label {
    color: var(--color-muted);
    font-size: 0.95rem;
}

.site-shell {
    min-height: 100vh;
}

.site-main {
    display: block;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: blur(16px);
    background: rgba(251, 248, 242, 0.82);
    border-bottom: 1px solid rgba(15, 18, 22, 0.08);
}

.site-header-inner,
.site-footer-inner {
    align-items: center;
    grid-template-columns: auto 1fr;
    padding: var(--space-4) 0;
}

.site-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.03em;
}

.site-nav-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
}

.site-nav .nav {
    display: flex;
    gap: var(--space-4);
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-nav .nav a {
    color: var(--color-muted);
    font-size: 0.95rem;
}

.site-nav .nav-current a,
.site-nav .nav a:hover {
    color: var(--color-ink);
}

.site-actions,
.button-row,
.meta-row,
.card-meta,
.proof-strip,
.topic-pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    align-items: center;
}

.button,
.topic-pills a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.85rem;
    padding: 0.7rem 1rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.button:hover,
.topic-pills a:hover {
    transform: translateY(-1px);
}

.button-primary {
    color: var(--color-accent-contrast);
    background: var(--color-accent);
}

.button-secondary,
.topic-pills a {
    border-color: var(--color-border);
    background: rgba(255, 255, 255, 0.7);
}

.text-link,
.eyebrow-link {
    color: var(--color-accent);
    font-weight: 600;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    min-height: 1.7rem;
    padding: 0.15rem 0.6rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    color: var(--color-ink);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.status-pill-live {
    background: rgba(31, 90, 77, 0.1);
    border-color: rgba(31, 90, 77, 0.2);
    color: var(--color-accent);
}

.eyebrow,
.eyebrow-link,
.card-meta span {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.lead {
    max-width: 52rem;
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: var(--color-muted);
}

.section-heading {
    max-width: 44rem;
    margin-bottom: var(--space-6);
}

.section-heading .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.section-heading .eyebrow::before {
    width: 1.5rem;
    height: 1px;
    background: var(--color-accent);
    content: "";
}

.section-heading p:last-child {
    color: var(--color-muted);
}

.surface-card,
.card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.78);
    box-shadow: var(--shadow-soft);
}

.surface-card {
    padding: var(--space-6);
}

.surface-card-accent {
    background: linear-gradient(180deg, rgba(31, 90, 77, 0.08), rgba(31, 90, 77, 0.02));
}

.signup-panel,
.member-cta {
    max-width: 54rem;
}

.signup-form {
    display: flex;
    gap: var(--space-3);
    margin: var(--space-5) 0 var(--space-3);
}

.signup-form input {
    flex: 1;
    min-height: 2.85rem;
    padding: 0 1rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: #fff;
    color: var(--color-ink);
    font: inherit;
}

.microcopy,
.form-note,
.footer-copy {
    color: var(--color-muted);
    font-size: 0.95rem;
}

.proof-strip {
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-4) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: 0.84rem;
    text-transform: uppercase;
}

.card-grid {
    display: grid;
    gap: var(--space-5);
}

.card-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-link,
.card-link-featured {
    display: grid;
    height: 100%;
}

.card {
    overflow: hidden;
}

.card-image {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card-image-featured {
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    min-height: 100%;
}

.card-body {
    padding: var(--space-5);
}

.card-meta {
    margin: var(--space-4) 0rem;
}

.post-card,
.experiment-card,
.product-card {
    position: relative;
}

.post-card::before,
.experiment-card::before,
.product-card::before {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, rgba(15, 18, 22, 0.12), rgba(15, 18, 22, 0));
    content: "";
}

.experiment-card::before {
    background: linear-gradient(90deg, rgba(36, 87, 214, 0.35), rgba(36, 87, 214, 0));
}

.product-card::before {
    background: linear-gradient(90deg, rgba(31, 90, 77, 0.35), rgba(31, 90, 77, 0));
}

.post-card-featured .card-link-featured {
    grid-template-columns: 1.1fr 0.9fr;
}

.post-card-featured {
    margin-bottom: var(--space-6);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(246, 242, 234, 0.85));
}

.post-card-featured h2 {
    max-width: 14ch;
}

.plain-list {
    margin: var(--space-4) 0 0;
    padding-left: 1.2rem;
}

.prose {
    font-size: 1.05rem;
}

.prose-wide {
    max-width: 62rem;
}

.prose h2,
.prose h3,
.post-content h2,
.post-content h3 {
    margin-top: var(--space-7);
}

.post-header,
.page-header {
    padding: var(--space-9) 0 var(--space-6);
}

.post-image {
    margin: 0 0 var(--space-6);
}

.post-image img {
    border-radius: var(--radius-lg);
}

.post-content {
    font-size: 1.08rem;
}

.gh-content .kg-width-wide {
    width: min(100vw - 2rem, 1100px);
    margin-left: 50%;
    transform: translateX(-50%);
}

.gh-content .kg-width-full {
    width: 100vw;
    max-width: 100vw;
    margin-left: 50%;
    transform: translateX(-50%);
}

.gh-content .kg-width-full img,
.gh-content .kg-width-wide img {
    width: 100%;
}

.post-section-gap {
    margin-top: var(--space-7);
}

.site-footer {
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-9);
    background: rgba(255, 255, 255, 0.45);
    padding: var(--space-8) 0;
}

.footer-links .nav {
    display: grid;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
    list-style: none;
}

.footer-actions {
    display: grid;
    gap: var(--space-2);
    justify-items: start;
}

.footer-version {
    text-align: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-4);
}

.footer-version p {
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    color: var(--color-muted);
    opacity: 0.6;
    margin: 0;
}

.nav-toggle {
    display: none;
    appearance: none;
    border: 0;
    background: transparent;
    padding: 0;
}

.nav-toggle span:not(.sr-only) {
    display: block;
    width: 22px;
    height: 2px;
    margin: 4px 0;
    background: var(--color-ink);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 960px) {
    .hero-home-inner,
    .layout-two-up,
    .post-card-featured .card-link-featured,
    .site-footer-inner {
        grid-template-columns: 1fr;
    }

    .hero-marks {
        grid-template-columns: 1fr;
    }

    .card-grid-3 {
        grid-template-columns: 1fr;
    }

    .site-header-inner {
        grid-template-columns: auto auto;
    }

    .nav-toggle {
        display: inline-block;
        justify-self: end;
    }

    .site-nav-shell {
        display: none;
        grid-column: 1 / -1;
        padding-top: var(--space-4);
        border-top: 1px solid var(--color-border);
        flex-direction: column;
        align-items: stretch;
    }

    .site-nav-shell.is-open {
        display: flex;
    }

    .site-nav .nav {
        flex-direction: column;
    }

    .site-actions,
    .signup-form {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ============================================================
   Share buttons
   ============================================================ */

.share-buttons {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.share-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.7);
    color: var(--color-muted);
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.share-btn:hover {
    color: var(--color-ink);
    border-color: var(--color-ink);
}

.share-btn-copied {
    position: absolute;
    margin-left: var(--space-2);
    font-size: 0.78rem;
    color: var(--color-accent);
}

/* ============================================================
   Table of contents
   ============================================================ */

.toc {
    margin-bottom: var(--space-6);
    padding: var(--space-5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
}

.toc-label {
    display: block;
    margin-bottom: var(--space-3);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.toc-list {
    margin: 0;
    padding-left: 1.2rem;
}

.toc-item {
    margin-bottom: var(--space-2);
    font-size: 0.95rem;
}

.toc-item a {
    color: var(--color-muted);
    transition: color 0.15s ease;
}

.toc-item a:hover {
    color: var(--color-accent);
}

.toc-item-sub {
    margin-left: var(--space-4);
    font-size: 0.9rem;
}

/* ============================================================
   Content Gate — Subscribe / sign-in to reveal
   Reusable across any post or page template.
   ============================================================ */

.content-gate {
    position: relative;
    margin-top: -8rem;
    padding-top: 0;
}

.content-gate-fade {
    height: 8rem;
    background: linear-gradient(to bottom, transparent, var(--color-paper));
    pointer-events: none;
}

.content-gate-panel {
    max-width: 32rem;
    margin: 0 auto;
    padding: var(--space-7);
    text-align: center;
    position: relative;
}

.content-gate-accent {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 3rem;
    height: 3px;
    border-radius: 2px;
    background: var(--color-accent);
}

.content-gate-icon {
    width: 3.5rem;
    height: 3.5rem;
    margin: 0 auto var(--space-5);
    border-radius: 50%;
    background: var(--color-accent-soft);
    display: grid;
    place-items: center;
}

.content-gate-icon svg {
    width: 1.4rem;
    height: 1.4rem;
    stroke: var(--color-accent);
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.content-gate-title {
    font-size: clamp(1.25rem, 3vw, 1.6rem);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-3);
}

.content-gate-description {
    color: var(--color-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--space-5);
}

.content-gate-form {
    display: flex;
    gap: var(--space-2);
    max-width: 24rem;
    margin: 0 auto var(--space-3);
}

.content-gate-input {
    flex: 1;
    min-height: 2.85rem;
    padding: 0 1rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-surface);
    color: var(--color-ink);
    font: inherit;
    font-size: 0.9rem;
    transition: border-color 0.2s ease;
}

.content-gate-input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.content-gate-input::placeholder {
    color: var(--color-muted);
}

.content-gate-btn {
    white-space: nowrap;
}

.content-gate-error:empty {
    display: none;
}

.content-gate-error {
    color: #b45309;
    font-size: 0.85rem;
    margin: var(--space-2) 0;
}

.content-gate-trust {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    color: var(--color-muted);
    margin: var(--space-2) 0 0;
}

.content-gate-divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-4) auto;
    max-width: 24rem;
    color: var(--color-muted);
    font-size: 0.85rem;
}

.content-gate-divider::before,
.content-gate-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.content-gate-signin {
    width: 100%;
    max-width: 24rem;
    margin: 0 auto;
    display: flex;
}

/* ============================================================
   Print styles
   ============================================================ */

@media print {
    *,
    *::before,
    *::after {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }

    .site-header,
    .site-footer,
    .nav-toggle,
    .theme-switcher-wrap,
    .share-buttons,
    .toc,
    .signup-panel,
    .member-cta,
    .content-gate,
    .button-row,
    .post-section-gap,
    .pagination {
        display: none !important;
    }

    .post-header {
        padding: 0 0 1rem;
    }

    .post-content {
        font-size: 11pt;
    }

    a[href]::after {
        content: " (" attr(href) ")";
        font-size: 0.85em;
        color: #555;
    }

    .card-link::after,
    .eyebrow-link::after,
    .text-link::after {
        content: none;
    }

    img {
        max-width: 100% !important;
        page-break-inside: avoid;
    }

    h2, h3 {
        page-break-after: avoid;
    }

    .container,
    .container-narrow {
        width: 100%;
        max-width: none;
    }
}