:root {
    --jk-bg: #f4f7fb;
    --jk-surface: #ffffff;
    --jk-surface-soft: #eaf0f8;
    --jk-surface-warm: #f4efe7;
    --jk-ink: #0b1220;
    --jk-text: #263142;
    --jk-muted: #667085;
    --jk-border: #dbe2ec;
    --jk-brand: #2457e6;
    --jk-brand-dark: #173cb0;
    --jk-signal: #16a085;
    --jk-danger: #c23b53;
    --jk-shadow: 0 24px 70px rgba(20, 36, 70, .12);
    --jk-radius-sm: 10px;
    --jk-radius: 18px;
    --jk-radius-lg: 28px;
    --jk-max: 1180px;
    --font-sans: Inter, Pretendard, "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-serif: Inter, Pretendard, "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --color-primary-text: var(--jk-ink);
    --color-secondary-text: var(--jk-muted);
    --color-darker-gray: var(--jk-ink);
    --color-dark-gray: var(--jk-text);
    --color-mid-gray: var(--jk-muted);
    --color-light-gray: var(--jk-border);
    --color-lighter-gray: var(--jk-surface-soft);
    --color-black: var(--jk-ink);
    --ghost-accent-color: var(--jk-brand) !important;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 150px;
    background: var(--jk-bg);
}

body {
    overflow-x: hidden;
    color: var(--jk-text);
    background: var(--jk-bg);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body,
.gh-site,
.gh-main,
.gh-outer,
.gh-inner {
    scrollbar-color: var(--jk-border) var(--jk-bg);
}

a,
button,
input {
    -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--jk-brand) 45%, transparent);
    outline-offset: 3px;
}

::selection {
    color: #fff;
    background: var(--jk-brand);
}

.gh-inner {
    width: min(calc(100% - 48px), var(--jk-max));
    max-width: var(--jk-max);
}

.jk-visually-hidden,
.jk-skip-link:not(:focus) {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.jk-skip-link:focus {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 10000;
    padding: 10px 14px;
    color: #fff;
    background: var(--jk-brand-dark);
    border-radius: 8px;
}

.jk-reading-progress {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1000;
    height: 3px;
    pointer-events: none;
}

.jk-reading-progress span {
    display: block;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--jk-brand), var(--jk-signal));
    transform: scaleX(0);
    transform-origin: left;
}

.jk-header {
    position: sticky;
    top: 0;
    z-index: 900;
    background: color-mix(in srgb, var(--jk-bg) 90%, transparent);
    border-bottom: 1px solid transparent;
    backdrop-filter: blur(18px);
    transition: border-color .2s ease, box-shadow .2s ease;
}

.jk-header.is-scrolled {
    border-color: var(--jk-border);
    box-shadow: 0 8px 28px rgba(25, 42, 76, .06);
}

.jk-header-inner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 42px;
    align-items: center;
    min-height: 80px;
}

.jk-nav-chevron {
    display: inline-block;
    width: 6px;
    height: 6px;
    margin: 0 0 3px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    transition: margin .18s ease, transform .18s ease;
}

.jk-nav-item.is-submenu-open .jk-nav-chevron {
    margin-bottom: 0;
    transform: rotate(225deg);
}

.jk-brand-row,
.jk-brand,
.jk-header-actions,
.jk-primary-nav .nav {
    display: flex;
    align-items: center;
}

.jk-nav-item { position: relative; }

.jk-nav-primary-line {
    display: flex;
    align-items: center;
}

.jk-nav-submenu-toggle {
    display: inline-grid;
    width: 24px;
    height: 38px;
    padding: 0;
    color: var(--jk-muted);
    background: transparent;
    border: 0;
    cursor: pointer;
    place-items: center;
}

.jk-nav-submenu {
    position: absolute;
    top: calc(100% - 10px);
    left: -18px;
    display: grid;
    visibility: hidden;
    width: 244px;
    padding: 10px;
    background: color-mix(in srgb, var(--jk-surface) 97%, transparent);
    border: 1px solid var(--jk-border);
    border-radius: 14px;
    box-shadow: 0 22px 52px rgba(20, 36, 70, .15);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-7px);
    transition: opacity .16s ease, transform .16s ease, visibility .16s ease;
}

.jk-nav-item:hover > .jk-nav-submenu,
.jk-nav-item:focus-within > .jk-nav-submenu,
.jk-nav-item.is-submenu-open > .jk-nav-submenu {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.jk-primary-nav .nav .jk-nav-submenu a {
    display: grid;
    gap: 2px;
    padding: 10px 12px;
    border-radius: 9px;
    white-space: normal;
}

.jk-primary-nav .nav .jk-nav-submenu a:hover,
.jk-primary-nav .nav .jk-nav-submenu a:focus {
    background: var(--jk-surface-soft);
    outline: none;
}

.jk-nav-submenu strong {
    color: var(--jk-ink);
    font-size: 13px;
    font-weight: 750;
}

.jk-nav-submenu span {
    color: var(--jk-muted);
    font-size: 10px;
    line-height: 1.4;
}

.jk-brand {
    flex: none;
    gap: 10px;
    color: var(--jk-ink);
    text-decoration: none;
}

.jk-brand:hover { opacity: 1; }

.jk-brand-mark {
    position: relative;
    display: inline-grid;
    width: 36px;
    height: 36px;
    color: #fff;
    background: var(--jk-ink);
    border-radius: 11px;
    place-items: center;
    font-size: 18px;
    font-weight: 850;
    letter-spacing: -.05em;
}

.jk-brand-mark span {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 6px;
    height: 6px;
    background: var(--jk-signal);
    border: 2px solid var(--jk-ink);
    border-radius: 50%;
}

.jk-brand-name {
    color: var(--jk-ink);
    font-size: 20px;
    font-weight: 820;
    letter-spacing: -.045em;
}

.jk-brand-image {
    width: auto;
    max-width: 170px;
    max-height: 38px;
}

.jk-primary-nav { min-width: 0; }
.jk-mobile-subscribe { display: none; }

.jk-primary-nav .nav {
    gap: 28px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.jk-primary-nav .nav a {
    position: relative;
    padding: 28px 0 26px;
    color: var(--jk-muted);
    font-size: 14px;
    font-weight: 650;
    text-decoration: none;
    white-space: nowrap;
}

.jk-primary-nav .nav a:hover,
.jk-primary-nav .nav-current a,
.jk-nav-item.is-current > .jk-nav-primary-line > a {
    color: var(--jk-ink);
    opacity: 1;
}

.jk-primary-nav .nav-current > a::after,
.jk-nav-item.is-current > .jk-nav-primary-line > a::after {
    position: absolute;
    right: 0;
    bottom: 20px;
    left: 0;
    height: 2px;
    content: "";
    background: var(--jk-brand);
    border-radius: 2px;
}

.jk-header-actions {
    gap: 9px;
    justify-content: flex-end;
}

.jk-icon-button {
    display: inline-grid;
    width: 38px;
    height: 38px;
    padding: 0;
    color: var(--jk-text);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 50%;
    cursor: pointer;
    place-items: center;
}

.jk-icon-button:hover {
    color: var(--jk-ink);
    background: var(--jk-surface);
    border-color: var(--jk-border);
}

.jk-icon-button svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.jk-member-link {
    padding: 10px 6px;
    color: var(--jk-text);
    font-size: 13px;
    font-weight: 650;
    text-decoration: none;
}

.jk-button,
.gh-loadmore {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
    color: #fff !important;
    background: var(--jk-ink) !important;
    border: 1px solid var(--jk-ink) !important;
    border-radius: var(--jk-radius-sm);
    box-shadow: none !important;
    font: inherit;
    font-size: 14px;
    font-weight: 720;
    text-decoration: none;
    cursor: pointer;
    transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

.jk-button:hover,
.gh-loadmore:hover {
    color: #fff !important;
    background: var(--jk-brand-dark) !important;
    border-color: var(--jk-brand-dark) !important;
    opacity: 1;
    transform: translateY(-2px);
}

.jk-button-small {
    min-height: 40px;
    padding: 0 15px;
    font-size: 13px;
}

.jk-menu-toggle { display: none; }

.jk-eyebrow {
    margin: 0 0 14px;
    color: var(--jk-brand);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .17em;
    line-height: 1.3;
    text-transform: uppercase;
}

/* Home */
.jk-hero {
    padding: clamp(46px, 7vw, 92px) 0 clamp(56px, 8vw, 108px);
}

.jk-hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(420px, .88fr);
    gap: clamp(44px, 7vw, 96px);
    align-items: center;
}

.jk-hero-copy h1 {
    max-width: 720px;
    margin: 0;
    color: var(--jk-ink);
    font-size: clamp(48px, 6.3vw, 82px);
    font-weight: 820;
    letter-spacing: -.065em;
    line-height: 1.02;
    word-break: keep-all;
}

.jk-hero-description {
    max-width: 640px;
    margin: 28px 0 0;
    color: var(--jk-muted);
    font-size: clamp(17px, 1.8vw, 20px);
    letter-spacing: -.02em;
    line-height: 1.7;
    word-break: keep-all;
}

.jk-hero-actions {
    display: flex;
    gap: 22px;
    align-items: center;
    margin-top: 36px;
}

.jk-text-link {
    color: var(--jk-ink);
    font-size: 14px;
    font-weight: 720;
    text-decoration: none;
}

.jk-text-link span { color: var(--jk-brand); }

.jk-lead-card {
    overflow: hidden;
    background: var(--jk-surface);
    border: 1px solid var(--jk-border);
    border-radius: var(--jk-radius-lg);
    box-shadow: var(--jk-shadow);
}

.jk-lead-link,
.jk-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.jk-lead-link:hover,
.jk-card-link:hover { opacity: 1; }

.jk-lead-media {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #102047;
}

.jk-lead-media img,
.jk-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s cubic-bezier(.2, .8, .2, 1);
}

.jk-lead-link:hover img,
.jk-card-link:hover img { transform: scale(1.035); }

.jk-lead-media.is-generated {
    background:
        linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px),
        radial-gradient(circle at 76% 22%, rgba(76, 131, 255, .68), transparent 25%),
        linear-gradient(145deg, #0a1836, #193e84 62%, #136e6b);
    background-size: 38px 38px, 38px 38px, auto, auto;
}

.jk-signal-label {
    position: absolute;
    top: 24px;
    left: 26px;
    color: rgba(255,255,255,.8);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .18em;
}

.jk-signal-line {
    position: absolute;
    right: 9%;
    left: 8%;
    height: 2px;
    background: rgba(255,255,255,.88);
    clip-path: polygon(0 68%, 12% 60%, 25% 76%, 37% 43%, 49% 55%, 61% 18%, 72% 36%, 85% 12%, 100% 0, 100% 100%, 0 100%);
}

.jk-signal-line.line-one { top: 47%; height: 48px; }
.jk-signal-line.line-two { top: 37%; height: 64px; opacity: .35; transform: scaleY(.7); }
.jk-signal-line.line-three { top: 55%; height: 36px; opacity: .22; transform: scaleY(1.4); }

.jk-signal-dot {
    position: absolute;
    right: 8%;
    top: 33%;
    width: 12px;
    height: 12px;
    background: #63e6c5;
    border: 3px solid rgba(255,255,255,.9);
    border-radius: 50%;
    box-shadow: 0 0 0 10px rgba(99,230,197,.14);
}

.jk-lead-content { padding: 26px 28px 28px; }

.jk-card-kicker {
    display: flex;
    gap: 10px;
    align-items: center;
    color: var(--jk-muted);
    font-size: 11px;
    font-weight: 680;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.jk-card-kicker span { color: var(--jk-brand); }

.tag-market-briefing .jk-card-kicker span { color: #3568f0; }
.tag-finance-explained .jk-card-kicker span { color: #c7671b; }
.tag-ai-learning .jk-card-kicker span { color: #c33b7b; }
.tag-ai-automation .jk-card-kicker span { color: #7651d2; }
.tag-home-server .jk-card-kicker span { color: #0c8a76; }

.jk-card-kicker time::before {
    display: inline-block;
    width: 3px;
    height: 3px;
    margin: 0 10px 3px 0;
    content: "";
    background: currentColor;
    border-radius: 50%;
}

.jk-lead-content h2 {
    margin: 15px 0 0;
    color: var(--jk-ink);
    font-size: clamp(26px, 2.5vw, 36px);
    font-weight: 780;
    letter-spacing: -.045em;
    line-height: 1.22;
    word-break: keep-all;
}

.jk-lead-content > p {
    display: -webkit-box;
    margin: 14px 0 0;
    overflow: hidden;
    color: var(--jk-muted);
    font-size: 15px;
    line-height: 1.65;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.jk-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 24px;
    color: var(--jk-muted);
    font-size: 12px;
}

.jk-card-footer strong { color: var(--jk-ink); font-weight: 700; }

.jk-proof {
    background: var(--jk-ink);
}

.jk-proof-inner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    min-height: 118px;
}

.jk-proof-inner div {
    display: flex;
    gap: 20px;
    align-items: center;
    padding: 24px 36px;
    color: #fff;
    border-left: 1px solid rgba(255,255,255,.15);
}

.jk-proof-inner div:last-child { border-right: 1px solid rgba(255,255,255,.15); }
.jk-proof-inner strong { color: #8eabff; font-size: 12px; letter-spacing: .1em; }
.jk-proof-inner span { font-size: 14px; font-weight: 640; line-height: 1.45; }

.jk-latest,
.jk-topics,
.jk-related {
    padding: clamp(72px, 9vw, 120px) 0;
}

.jk-section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 38px;
}

.jk-section-heading h2 {
    margin: 0;
    color: var(--jk-ink);
    font-size: clamp(31px, 4vw, 48px);
    font-weight: 780;
    letter-spacing: -.05em;
    line-height: 1.1;
}

.jk-section-heading > a {
    padding-bottom: 5px;
    color: var(--jk-text);
    border-bottom: 1px solid var(--jk-border);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
}

.jk-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 34px 24px;
}

.jk-card {
    min-width: 0;
    margin: 0 !important;
}

.jk-card-media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--jk-surface-soft);
    border: 1px solid var(--jk-border);
    border-radius: var(--jk-radius);
}

.jk-card-media.is-generated {
    background:
        linear-gradient(135deg, transparent 48%, color-mix(in srgb, var(--jk-brand) 10%, transparent) 49%, transparent 50%),
        radial-gradient(circle at 85% 20%, color-mix(in srgb, var(--jk-brand) 30%, transparent), transparent 28%),
        var(--jk-surface-soft);
    background-size: 22px 22px, auto, auto;
}

.tag-market-briefing .jk-card-media.is-generated {
    background: radial-gradient(circle at 85% 20%, rgba(53,104,240,.3), transparent 30%), linear-gradient(145deg, var(--jk-surface-soft), color-mix(in srgb, #3568f0 12%, var(--jk-surface)));
}

.tag-finance-explained .jk-card-media.is-generated {
    background: radial-gradient(circle at 85% 20%, rgba(226,131,53,.3), transparent 30%), linear-gradient(145deg, var(--jk-surface-warm), color-mix(in srgb, #e28335 10%, var(--jk-surface)));
}

.tag-ai-learning .jk-card-media.is-generated {
    background: radial-gradient(circle at 85% 20%, rgba(212,78,139,.3), transparent 30%), linear-gradient(145deg, var(--jk-surface-soft), color-mix(in srgb, #d44e8b 12%, var(--jk-surface)));
}

.tag-ai-automation .jk-card-media.is-generated {
    background: radial-gradient(circle at 85% 20%, rgba(123,86,221,.3), transparent 30%), linear-gradient(145deg, var(--jk-surface-soft), color-mix(in srgb, #7b56dd 12%, var(--jk-surface)));
}

.tag-home-server .jk-card-media.is-generated {
    background: radial-gradient(circle at 85% 20%, rgba(20,156,134,.3), transparent 30%), linear-gradient(145deg, var(--jk-surface-soft), color-mix(in srgb, #149c86 12%, var(--jk-surface)));
}

.jk-card-monogram {
    position: absolute;
    right: 22px;
    bottom: 20px;
    left: 22px;
    overflow: hidden;
    color: var(--jk-ink);
    font-size: clamp(22px, 2.7vw, 34px);
    font-weight: 820;
    letter-spacing: -.055em;
    line-height: 1;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.jk-card-orbit {
    position: absolute;
    border: 1px solid color-mix(in srgb, var(--jk-brand) 45%, transparent);
    border-radius: 50%;
}

.jk-card-orbit.orbit-one { top: 17px; left: 21px; width: 56px; height: 56px; }
.jk-card-orbit.orbit-two { top: 35px; left: 52px; width: 32px; height: 32px; background: color-mix(in srgb, var(--jk-signal) 18%, transparent); }

.jk-card-body { padding: 19px 2px 0; }

.jk-card-title {
    margin: 12px 0 0;
    color: var(--jk-ink);
    font-size: clamp(20px, 2vw, 25px);
    font-weight: 760;
    letter-spacing: -.04em;
    line-height: 1.3;
    word-break: keep-all;
}

.jk-card-link:hover .jk-card-title { color: var(--jk-brand-dark); }

.jk-card-excerpt {
    display: -webkit-box;
    margin: 11px 0 0;
    overflow: hidden;
    color: var(--jk-muted);
    font-size: 14px;
    letter-spacing: -.01em;
    line-height: 1.65;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.jk-card .jk-card-footer {
    padding-top: 14px;
    margin-top: 18px;
    border-top: 1px solid var(--jk-border);
}

.jk-card-comments {
    margin-left: auto;
}

.jk-card-comments::before {
    display: inline-block;
    width: 11px;
    height: 9px;
    margin-right: 5px;
    content: "";
    border: 1px solid currentColor;
    border-radius: 4px;
}

.jk-loadmore {
    width: 100%;
    margin-top: 48px;
}

.pagination { display: none; }

.jk-topics { background: var(--jk-surface); }

.jk-topic-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border: 1px solid var(--jk-border);
    border-radius: var(--jk-radius-lg);
    overflow: hidden;
}

.jk-topic-card {
    position: relative;
    display: flex;
    min-height: 310px;
    flex-direction: column;
    justify-content: space-between;
    padding: 30px;
    color: var(--jk-text);
    text-decoration: none;
    transition: background .25s ease;
}

.jk-topic-card:nth-child(even) { border-left: 1px solid var(--jk-border); }
.jk-topic-card:nth-child(n+3) { border-top: 1px solid var(--jk-border); }
.jk-topic-card:hover { background: var(--jk-surface-soft); opacity: 1; }
.jk-topic-card:hover .jk-topic-arrow { transform: translateX(5px); }
.jk-topic-index { color: var(--jk-brand); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.jk-topic-card h3 { margin: 0; color: var(--jk-ink); font-size: 28px; font-weight: 770; letter-spacing: -.04em; }
.jk-topic-card p { max-width: 280px; margin: 12px 0 0; color: var(--jk-muted); font-size: 14px; line-height: 1.65; }
.jk-topic-arrow { align-self: flex-end; color: var(--jk-brand); font-size: 28px; transition: transform .2s ease; }
.jk-topic-market { --jk-topic-accent: #3568f0; }
.jk-topic-finance { --jk-topic-accent: #e28335; }
.jk-topic-learning { --jk-topic-accent: #d44e8b; }
.jk-topic-grid .jk-topic-learning:last-child { min-height: 230px; border-left: 0; grid-column: 1 / -1; }
.jk-topic-card .jk-topic-index, .jk-topic-card .jk-topic-arrow { color: var(--jk-topic-accent); }

/* Newsletter */
.jk-newsletter { padding: clamp(70px, 9vw, 118px) 0; background: var(--jk-brand-dark); }

.jk-newsletter-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(380px, .75fr);
    gap: clamp(40px, 7vw, 100px);
    align-items: center;
}

.jk-newsletter .jk-eyebrow { color: #a9bdff; }

.jk-newsletter-copy h2 {
    margin: 0;
    color: #fff;
    font-size: clamp(34px, 4.8vw, 57px);
    font-weight: 780;
    letter-spacing: -.055em;
    line-height: 1.12;
    word-break: keep-all;
}

.jk-newsletter-copy > p:last-child {
    max-width: 560px;
    margin: 20px 0 0;
    color: rgba(255,255,255,.72);
    font-size: 15px;
    line-height: 1.7;
}

.jk-newsletter-input-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    padding: 7px;
    background: #fff;
    border-radius: 13px;
}

.jk-newsletter-form input {
    min-width: 0;
    height: 50px;
    padding: 0 13px;
    color: #111827;
    background: transparent;
    border: 0;
    outline: 0;
    font-size: 15px;
}

.jk-newsletter-form .jk-button { min-height: 50px; background: #0b1220 !important; }
.jk-newsletter-form button [data-members-form="loading"] { display: none; }
.jk-newsletter-form.loading button > span:first-child { display: none; }
.jk-newsletter-form.loading button [data-members-form="loading"] { display: inline; }
.jk-form-note, .jk-form-success, .jk-form-error { margin: 12px 2px 0; color: rgba(255,255,255,.64); font-size: 12px; }
.jk-form-success, .jk-form-error { display: none; }
.jk-newsletter-form.success .jk-form-note, .jk-newsletter-form.error .jk-form-note { display: none; }
.jk-newsletter-form.success .jk-form-success { display: block; color: #91f3d9; }
.jk-newsletter-form.error .jk-form-error { display: block; color: #ffd0d7; }

.jk-newsletter-member {
    display: grid;
    gap: 8px;
    padding: 28px;
    color: #fff;
    background: rgba(255,255,255,.09);
    border: 1px solid rgba(255,255,255,.18);
    border-radius: var(--jk-radius);
}

.jk-newsletter-member span { color: #a9bdff; font-size: 12px; font-weight: 800; }
.jk-newsletter-member strong { font-size: 18px; }
.jk-newsletter-member a { margin-top: 10px; color: #fff; font-size: 13px; }

/* Scroll-aware newsletter prompt */
.jk-floating-subscribe {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 820;
    display: grid;
    width: min(380px, calc(100vw - 48px));
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    align-items: end;
    padding: 23px 22px 20px;
    color: #fff;
    background:
        radial-gradient(circle at 0 0, rgba(114,150,255,.38), transparent 42%),
        #0b1220;
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 18px;
    box-shadow: 0 24px 64px rgba(6,13,28,.28);
    opacity: 0;
    pointer-events: none;
    transform: translateY(22px);
    transition: opacity .24s ease, transform .24s ease, visibility .24s ease;
    visibility: hidden;
}

.jk-floating-subscribe.is-visible {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.jk-floating-subscribe-copy { display: grid; gap: 8px; }
.jk-floating-subscribe-copy span { color: #9fb7ff; font-size: 8px; font-weight: 820; letter-spacing: .16em; }
.jk-floating-subscribe-copy strong { color: #fff; font-size: 18px; font-weight: 750; letter-spacing: -.035em; line-height: 1.28; word-break: keep-all; }
.jk-floating-subscribe > a { display: inline-flex; min-height: 39px; align-items: center; justify-content: center; padding: 0 13px; color: #0b1220; background: #fff; border-radius: 8px; font-size: 11px; font-weight: 780; text-decoration: none; white-space: nowrap; }
.jk-floating-subscribe > a:hover { opacity: .88; }
.jk-floating-subscribe-close { position: absolute; top: 7px; right: 8px; display: grid; width: 27px; height: 27px; padding: 0; color: rgba(255,255,255,.58); background: transparent; border: 0; border-radius: 50%; cursor: pointer; place-items: center; font-size: 20px; line-height: 1; }
.jk-floating-subscribe-close:hover { color: #fff; background: rgba(255,255,255,.1); }

/* Footer */
.jk-footer { padding-top: 68px; color: var(--jk-muted); background: var(--jk-surface); border-top: 1px solid var(--jk-border); }

.jk-footer-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 80px;
    padding-bottom: 60px;
}

.jk-footer-brand > p { max-width: 480px; margin: 22px 0 0; font-size: 14px; line-height: 1.75; }
.jk-footer-nav { display: grid; grid-template-columns: repeat(2, 150px); gap: 30px; }
.jk-footer-nav > div { display: flex; flex-direction: column; align-items: flex-start; gap: 11px; }
.jk-footer-nav h2 { margin: 0 0 5px; color: var(--jk-ink); font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.jk-footer-nav a, .jk-footer-nav button { padding: 0; color: var(--jk-muted); background: none; border: 0; font: inherit; font-size: 13px; text-decoration: none; cursor: pointer; }
.jk-footer-nav a:hover, .jk-footer-nav button:hover { color: var(--jk-ink); }
.jk-footer-bottom { display: flex; gap: 18px; align-items: center; justify-content: space-between; min-height: 72px; border-top: 1px solid var(--jk-border); font-size: 11px; }
.jk-footer-bottom .nav { display: flex; gap: 14px; padding: 0; margin: 0; list-style: none; }
.jk-footer-bottom a { color: inherit; text-decoration: none; }

/* Archives and boards */
.jk-archive-main,
.jk-page-main { padding: clamp(64px, 8vw, 112px) 0 clamp(90px, 11vw, 150px); }

.jk-archive-header {
    max-width: 880px;
    padding-bottom: clamp(56px, 7vw, 84px);
}

.jk-archive-header h1,
.jk-page-header h1,
.jk-author-header h1 {
    margin: 0;
    color: var(--jk-ink);
    font-size: clamp(50px, 8vw, 92px);
    font-weight: 820;
    letter-spacing: -.065em;
    line-height: 1;
}

.jk-archive-header > p:last-child,
.jk-page-header > p:last-child,
.jk-author-header > div > p:last-child {
    max-width: 700px;
    margin: 24px 0 0;
    color: var(--jk-muted);
    font-size: 18px;
    line-height: 1.75;
    word-break: keep-all;
}

.jk-board-empty {
    display: grid;
    min-height: 360px;
    padding: 40px;
    text-align: center;
    background: var(--jk-surface);
    border: 1px solid var(--jk-border);
    border-radius: var(--jk-radius-lg);
    place-items: center;
}

.jk-board-empty > span { color: var(--jk-brand); font-size: 40px; }
.jk-board-empty h2 { margin: 10px 0 0; color: var(--jk-ink); font-size: 28px; }
.jk-board-empty p { margin: 8px 0 22px; color: var(--jk-muted); }

.jk-author-header {
    display: grid;
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 30px;
    align-items: center;
    padding-bottom: 76px;
}

.jk-author-header img,
.jk-author-placeholder {
    width: 112px;
    height: 112px;
    object-fit: cover;
    background: var(--jk-surface-soft);
    border: 1px solid var(--jk-border);
    border-radius: 50%;
}

.jk-author-placeholder { display: grid; color: var(--jk-brand); place-items: center; font-size: 26px; font-weight: 800; }

.jk-page-main article { max-width: 980px; }
.jk-page-header { max-width: 780px; margin: 0 auto 56px; }
.jk-page-header h1 { font-size: clamp(44px, 7vw, 76px); }

/* Article */
.jk-article-header { padding: clamp(58px, 8vw, 110px) 0 54px; }
.jk-article-header-inner { max-width: 960px; }

.jk-breadcrumb {
    display: flex;
    gap: 10px;
    margin-bottom: 42px;
    color: var(--jk-muted);
    font-size: 12px;
}

.jk-breadcrumb a { color: inherit; text-decoration: none; }
.jk-breadcrumb a:hover { color: var(--jk-brand); }
.jk-article-kicker { display: flex; gap: 16px; align-items: center; color: var(--jk-muted); font-size: 12px; font-weight: 680; }
.jk-article-kicker span { color: var(--jk-brand); }
.jk-article-kicker time::before { margin-right: 16px; content: "·"; }

.jk-article-header h1 {
    max-width: 940px;
    margin: 20px 0 0;
    color: var(--jk-ink);
    font-size: clamp(42px, 6.7vw, 76px);
    font-weight: 820;
    letter-spacing: -.065em;
    line-height: 1.08;
    word-break: keep-all;
}

.jk-article-deck {
    max-width: 780px;
    margin: 26px 0 0;
    color: var(--jk-muted);
    font-size: clamp(18px, 2vw, 22px);
    letter-spacing: -.02em;
    line-height: 1.65;
}

.jk-article-reading-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
    margin-top: 32px;
    color: var(--jk-muted);
    font-size: 12px;
    font-weight: 680;
}

.jk-article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 24px;
}

.jk-article-tags a {
    padding: 7px 10px;
    color: var(--jk-muted);
    background: var(--jk-surface);
    border: 1px solid var(--jk-border);
    border-radius: 999px;
    font-size: 10px;
    font-weight: 680;
    text-decoration: none;
}

.jk-article-tags a:first-child {
    color: var(--jk-brand-dark);
    border-color: color-mix(in srgb, var(--jk-brand) 40%, var(--jk-border));
}

.tag-ai-learning .jk-article-header {
    background: radial-gradient(circle at 10% 0, color-mix(in srgb, #d44e8b 9%, transparent), transparent 35%);
}

.tag-ai-learning .jk-article-kicker span,
.tag-ai-learning .jk-breadcrumb a:hover { color: #c33b7b; }

.tag-ai-learning .jk-article-tags a:first-child {
    color: #b82f70;
    border-color: color-mix(in srgb, #d44e8b 42%, var(--jk-border));
}

.jk-learning-entry-meta {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 24px;
    align-items: center;
    padding: 20px 22px;
    margin-top: 32px;
    background: color-mix(in srgb, #d44e8b 6%, var(--jk-surface));
    border: 1px solid color-mix(in srgb, #d44e8b 30%, var(--jk-border));
    border-radius: var(--jk-radius-sm);
}

.jk-learning-entry-meta > span {
    color: #c33b7b;
    font-size: 9px;
    font-weight: 820;
    letter-spacing: .15em;
    white-space: nowrap;
}

.jk-learning-entry-meta p { margin: 0; color: var(--jk-muted); font-size: 12px; line-height: 1.6; }
.jk-learning-entry-meta strong { color: var(--jk-ink); font-weight: 720; }
.jk-learning-entry-meta a { color: var(--jk-ink); font-size: 11px; font-weight: 750; text-decoration: none; white-space: nowrap; }

.jk-feature-image { max-width: 1200px; margin-bottom: clamp(56px, 7vw, 92px); }
.jk-feature-image img { width: 100%; max-height: 760px; object-fit: cover; border-radius: var(--jk-radius-lg); }
.jk-feature-image figcaption { margin: 10px 6px 0; color: var(--jk-muted); font-size: 12px; text-align: right; }

.jk-article-layout {
    position: relative;
    display: grid;
    grid-template-columns: 210px minmax(0, 760px) 1fr;
    gap: 46px;
    align-items: start;
    max-width: 1180px;
}

.jk-article-column { min-width: 0; grid-column: 2; }

.jk-share-rail {
    position: sticky;
    top: 112px;
    display: grid;
    width: 62px;
    gap: 7px;
    justify-self: start;
    grid-column: 3;
}

.jk-share-rail > span { margin-bottom: 2px; color: var(--jk-muted); font-size: 8px; font-weight: 820; letter-spacing: .14em; text-align: center; }
.jk-share-rail button,
.jk-share-rail a { display: grid; width: 62px; min-height: 40px; padding: 0 6px; color: var(--jk-muted); background: var(--jk-surface); border: 1px solid var(--jk-border); border-radius: 8px; font: inherit; font-size: 10px; font-weight: 720; text-decoration: none; cursor: pointer; place-items: center; }
.jk-share-rail button:hover,
.jk-share-rail a:hover { color: var(--jk-brand-dark); border-color: var(--jk-brand); opacity: 1; }

.gh-toc {
    position: sticky;
    top: 112px;
    width: auto;
    max-height: calc(100vh - 140px);
    padding: 0;
    margin: 0;
    overflow-y: auto;
    color: var(--jk-muted);
    background: transparent;
    border: 0;
    border-radius: 0;
    grid-column: 1;
}

.gh-toc summary { color: var(--jk-ink); font-size: 12px; font-weight: 800; letter-spacing: .06em; list-style: none; cursor: default; }
.gh-toc summary::-webkit-details-marker { display: none; }
.gh-toc-list { display: grid; gap: 10px; padding-left: 13px; margin-top: 17px; border-left: 1px solid var(--jk-border); }
.gh-toc-list a { color: var(--jk-muted); font-size: 12px; line-height: 1.45; text-decoration: none; }
.gh-toc-list a.is-subheading { padding-left: 10px; font-size: 11px; }
.gh-toc-list a:hover, .gh-toc-list a.is-active { color: var(--jk-brand); }
.gh-toc-list a.is-active { font-weight: 700; }

.gh-content { color: var(--jk-text); font-family: var(--font-sans); font-size: 18px; letter-spacing: -.015em; line-height: 1.9; }
.gh-content > * { max-width: 760px; }
.gh-content h2, .gh-content h3 { color: var(--jk-ink); font-family: var(--font-sans); font-weight: 780; letter-spacing: -.04em; scroll-margin-top: 110px; word-break: keep-all; }
.gh-content h2 { margin-top: 2.15em; font-size: clamp(28px, 3.2vw, 38px); line-height: 1.3; }
.gh-content h3 { margin-top: 1.85em; font-size: clamp(22px, 2.4vw, 28px); line-height: 1.38; }
.gh-content a { color: var(--jk-brand-dark); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.gh-content strong { color: var(--jk-ink); }
.gh-content blockquote, blockquote:not([class]) { padding: 10px 0 10px 25px; color: var(--jk-text); border-left: 3px solid var(--jk-brand); font-size: 1.08em; }
.gh-content hr { background: var(--jk-border); }
.gh-content img { border-radius: var(--jk-radius-sm); }
.gh-content figcaption { color: var(--jk-muted); font-size: 12px; }
.gh-content pre { color: var(--jk-text); background: var(--jk-surface); border: 1px solid var(--jk-border); border-radius: var(--jk-radius-sm); }
.gh-content :not(pre) > code { color: var(--jk-brand-dark); background: var(--jk-surface-soft); }
.gh-content table:not(.gist table), .gh-content table:not(.gist table) th, .gh-content table:not(.gist table) td { color: var(--jk-text); background: var(--jk-surface); border-color: var(--jk-border); }
.kg-callout-card, .kg-toggle-card { color: var(--jk-text); background: var(--jk-surface); border: 1px solid var(--jk-border); border-radius: var(--jk-radius-sm); }

.jk-disclaimer {
    padding: 20px 22px;
    margin-top: 54px;
    color: var(--jk-muted);
    background: var(--jk-surface-soft);
    border: 1px solid var(--jk-border);
    border-radius: var(--jk-radius-sm);
    font-size: 12px;
    line-height: 1.65;
}

.jk-disclaimer strong { color: var(--jk-ink); }
.jk-disclaimer p { margin: 6px 0 0; }

.jk-monetization-slot:empty { display: none; }

.jk-monetization-slot:not(:empty) {
    position: relative;
    min-height: 120px;
    padding: 30px 18px 18px;
    margin: 48px 0;
    overflow: hidden;
    background: var(--jk-surface-soft);
    border: 1px solid var(--jk-border);
    border-radius: var(--jk-radius-sm);
}

.jk-monetization-slot:not(:empty)::before {
    position: absolute;
    top: 9px;
    left: 14px;
    color: var(--jk-muted);
    content: "AD · PARTNER";
    font-size: 7px;
    font-weight: 800;
    letter-spacing: .14em;
}

.jk-article-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    padding: 26px 0;
    margin-top: 38px;
    border-block: 1px solid var(--jk-border);
    color: var(--jk-muted);
    font-size: 13px;
}

.jk-article-actions > span { margin-right: auto; }
.jk-article-actions button, .jk-article-actions a { padding: 9px 12px; color: var(--jk-text); background: var(--jk-surface); border: 1px solid var(--jk-border); border-radius: 8px; font: inherit; font-weight: 680; text-decoration: none; cursor: pointer; }
.jk-article-actions button:hover, .jk-article-actions a:hover { color: var(--jk-brand-dark); border-color: var(--jk-brand); }

.jk-article-main .jk-newsletter { margin-top: clamp(72px, 9vw, 120px); }
.jk-comments {
    padding: clamp(50px, 7vw, 84px) 0;
    background: var(--jk-bg);
    border-top: 1px solid var(--jk-border);
}

.jk-comments-inner {
    max-width: 900px;
    overflow: hidden;
    background: var(--jk-surface);
    border: 1px solid var(--jk-border);
    border-radius: var(--jk-radius-lg);
    box-shadow: 0 18px 50px rgba(20,36,70,.07);
}

.jk-comments-header {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 18px;
    align-items: center;
    padding: 27px 30px 25px;
}

.jk-comments-symbol {
    display: grid;
    width: 48px;
    height: 48px;
    color: var(--jk-brand);
    background: var(--jk-surface-soft);
    border: 1px solid var(--jk-border);
    border-radius: 14px;
    place-items: center;
}

.jk-comments-symbol svg { width: 25px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.jk-comments-header .jk-eyebrow { margin-bottom: 6px; }
.jk-comments-header h2 { margin: 0; color: var(--jk-ink); font-size: clamp(25px, 3vw, 32px); font-weight: 770; letter-spacing: -.045em; }
.jk-comments-header > div:nth-child(2) > p:last-child { max-width: 560px; margin: 8px 0 0; color: var(--jk-muted); font-size: 12px; line-height: 1.6; }
.jk-comments-body { padding: 18px 24px 22px; border-top: 1px solid var(--jk-border); }
.jk-comments .gh-comments { min-height: 152px; margin: 0; }
.jk-comments .gh-comments iframe { display: block; width: 100% !important; }
.jk-related { border-top: 1px solid var(--jk-border); }

/* Category index */
.jk-categories-page { padding: clamp(62px, 8vw, 116px) 0 clamp(100px, 12vw, 170px); }

.jk-categories-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(300px, .6fr);
    gap: 70px;
    align-items: end;
    padding-bottom: clamp(64px, 8vw, 100px);
}

.jk-categories-hero h1 {
    margin: 0;
    color: var(--jk-ink);
    font-size: clamp(52px, 7.8vw, 96px);
    font-weight: 820;
    letter-spacing: -.07em;
    line-height: 1.02;
}

.jk-categories-hero > p {
    padding-left: 24px;
    margin: 0 0 7px;
    color: var(--jk-muted);
    border-left: 2px solid var(--jk-brand);
    font-size: 16px;
    line-height: 1.75;
    word-break: keep-all;
}

.jk-category-sections {
    border-top: 1px solid var(--jk-ink);
}

.jk-category-section {
    --jk-category-accent: var(--jk-brand);
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
    gap: 70px;
    padding: 58px 0;
    border-bottom: 1px solid var(--jk-border);
}

.jk-category-section.is-market { --jk-category-accent: #3568f0; }
.jk-category-section.is-finance { --jk-category-accent: #d97727; }
.jk-category-section.is-learning { --jk-category-accent: #d44e8b; }
.jk-category-section.is-ai { --jk-category-accent: #7b56dd; }
.jk-category-section.is-system { --jk-category-accent: #149c86; }

.jk-category-section > header {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 26px;
}

.jk-category-number {
    display: grid;
    width: 54px;
    height: 54px;
    color: var(--jk-category-accent);
    border: 1px solid color-mix(in srgb, var(--jk-category-accent) 38%, var(--jk-border));
    border-radius: 50%;
    font-size: 11px;
    font-weight: 820;
    place-items: center;
}

.jk-category-title > span { color: var(--jk-category-accent); font-size: 10px; font-weight: 800; letter-spacing: .13em; }
.jk-category-title h2 { margin: 12px 0 0; color: var(--jk-ink); font-size: clamp(34px, 4vw, 50px); font-weight: 790; letter-spacing: -.055em; }
.jk-category-title p { max-width: 520px; margin: 17px 0 0; color: var(--jk-muted); font-size: 14px; line-height: 1.72; }
.jk-category-title a { display: inline-block; margin-top: 22px; color: var(--jk-ink); border-bottom: 1px solid var(--jk-category-accent); font-size: 12px; font-weight: 720; text-decoration: none; }

.jk-category-latest { border-top: 1px solid var(--jk-border); }

.jk-category-latest a {
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr) auto;
    gap: 14px;
    align-items: center;
    min-height: 78px;
    color: var(--jk-text);
    border-bottom: 1px solid var(--jk-border);
    text-decoration: none;
}

.jk-category-latest a:hover { color: var(--jk-category-accent); opacity: 1; }
.jk-category-latest time { color: var(--jk-category-accent); font-size: 10px; font-weight: 800; }
.jk-category-latest strong { color: inherit; font-size: 14px; letter-spacing: -.02em; line-height: 1.45; }
.jk-category-latest a > span { color: var(--jk-category-accent); }

/* AI learning mini publication */
.jk-learning-page {
    --jk-learning: #d44e8b;
    --jk-learning-deep: #41236f;
}

.jk-learning-hero {
    padding: clamp(62px, 9vw, 126px) 0;
    overflow: hidden;
    background:
        radial-gradient(circle at 8% 0, color-mix(in srgb, var(--jk-learning) 10%, transparent), transparent 31%),
        var(--jk-surface);
    border-bottom: 1px solid var(--jk-border);
}

.jk-learning-hero > .gh-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(400px, .9fr);
    gap: clamp(50px, 8vw, 118px);
    align-items: center;
}

.jk-learning-copy .jk-eyebrow { color: var(--jk-learning); }

.jk-learning-copy h1 {
    max-width: 720px;
    margin: 0;
    color: var(--jk-ink);
    font-size: clamp(49px, 6.5vw, 84px);
    font-weight: 820;
    letter-spacing: -.07em;
    line-height: 1.03;
    word-break: keep-all;
}

.jk-learning-copy > p:not(.jk-eyebrow) {
    max-width: 620px;
    margin: 28px 0 0;
    color: var(--jk-muted);
    font-size: 18px;
    line-height: 1.75;
    word-break: keep-all;
}

.jk-learning-actions {
    display: flex;
    gap: 22px;
    align-items: center;
    margin-top: 36px;
}

.jk-learning-visual {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background:
        linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px),
        radial-gradient(circle at 70% 24%, rgba(232,107,168,.65), transparent 25%),
        linear-gradient(145deg, #18112f, var(--jk-learning-deep) 60%, #9b315f);
    background-size: 34px 34px, 34px 34px, auto, auto;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 36px;
    box-shadow: 0 38px 90px rgba(65,35,111,.28);
}

.jk-learning-visual::after {
    position: absolute;
    inset: 11%;
    content: "";
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 50%;
}

.jk-learning-core {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 2;
    display: grid;
    width: 145px;
    height: 145px;
    color: #fff;
    background: rgba(15,10,32,.76);
    border: 1px solid rgba(255,255,255,.34);
    border-radius: 50%;
    box-shadow: 0 0 0 16px rgba(255,255,255,.045), 0 20px 50px rgba(0,0,0,.28);
    place-content: center;
    text-align: center;
    transform: translate(-50%, -50%);
}

.jk-learning-core strong { font-size: 48px; font-weight: 820; letter-spacing: -.06em; line-height: 1; }
.jk-learning-core span { margin-top: 9px; color: rgba(255,255,255,.66); font-size: 7px; font-weight: 750; letter-spacing: .13em; }

.jk-learning-orbit {
    position: absolute;
    z-index: 1;
    display: grid;
    width: 48px;
    height: 48px;
    color: #fff;
    background: rgba(255,255,255,.13);
    border: 1px solid rgba(255,255,255,.38);
    border-radius: 50%;
    backdrop-filter: blur(8px);
    place-items: center;
    font-size: 9px;
    font-weight: 800;
}

.jk-learning-orbit::before {
    position: absolute;
    inset: -10px;
    content: "";
    border: 1px solid rgba(255,255,255,.12);
    border-radius: inherit;
}

.jk-learning-orbit.orbit-a { top: 15%; left: 23%; }
.jk-learning-orbit.orbit-b { top: 47%; right: 12%; }
.jk-learning-orbit.orbit-c { right: 30%; bottom: 11%; }

.jk-learning-path {
    padding: clamp(76px, 9vw, 120px) 0;
    background: var(--jk-bg);
}

.jk-learning-path .jk-eyebrow,
.jk-learning-notes .jk-eyebrow { color: var(--jk-learning); }

.jk-learning-steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border: 1px solid var(--jk-border);
    border-radius: var(--jk-radius-lg);
    overflow: hidden;
}

.jk-learning-steps article {
    min-height: 260px;
    padding: 28px;
    background: var(--jk-surface);
    border-left: 1px solid var(--jk-border);
    transition: background .2s ease, transform .2s ease;
}

.jk-learning-steps article:first-child { border-left: 0; }
.jk-learning-steps article:hover { background: color-mix(in srgb, var(--jk-learning) 6%, var(--jk-surface)); }
.jk-learning-steps article > span { color: var(--jk-learning); font-size: 11px; font-weight: 820; letter-spacing: .13em; }
.jk-learning-steps h3 { margin: 72px 0 0; color: var(--jk-ink); font-size: 23px; font-weight: 760; letter-spacing: -.04em; }
.jk-learning-steps p { margin: 13px 0 0; color: var(--jk-muted); font-size: 13px; line-height: 1.7; word-break: keep-all; }

.jk-learning-format {
    padding: clamp(76px, 10vw, 132px) 0;
    color: #fff;
    background:
        radial-gradient(circle at 12% 12%, rgba(212,78,139,.22), transparent 29%),
        linear-gradient(145deg, #151025, #2b174b 62%, #43205b);
}

.jk-learning-format > .gh-inner {
    display: grid;
    grid-template-columns: minmax(280px, .75fr) minmax(0, 1.25fr);
    gap: clamp(50px, 8vw, 112px);
    align-items: start;
}

.jk-learning-format .jk-eyebrow { color: #f38bbb; }

.jk-learning-format-heading h2 {
    margin: 0;
    color: #fff;
    font-size: clamp(38px, 5vw, 61px);
    font-weight: 800;
    letter-spacing: -.06em;
    line-height: 1.1;
    word-break: keep-all;
}

.jk-learning-format-heading > p:last-child {
    max-width: 430px;
    margin: 22px 0 0;
    color: rgba(255,255,255,.63);
    font-size: 14px;
    line-height: 1.75;
    word-break: keep-all;
}

.jk-learning-format-list {
    padding: 0;
    margin: 0;
    border-top: 1px solid rgba(255,255,255,.22);
    list-style: none;
}

.jk-learning-format-list li {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 18px;
    padding: 22px 0;
    border-bottom: 1px solid rgba(255,255,255,.16);
}

.jk-learning-format-list li > span { padding-top: 3px; color: #f38bbb; font-size: 10px; font-weight: 820; letter-spacing: .12em; }
.jk-learning-format-list strong { color: #fff; font-size: 18px; font-weight: 740; letter-spacing: -.025em; }
.jk-learning-format-list p { margin: 7px 0 0; color: rgba(255,255,255,.58); font-size: 13px; line-height: 1.65; word-break: keep-all; }

.jk-learning-notes {
    padding: clamp(76px, 10vw, 132px) 0;
    background: var(--jk-surface);
}

.jk-learning-empty {
    display: grid;
    grid-template-columns: minmax(210px, .58fr) minmax(0, 1.42fr);
    min-height: 390px;
    overflow: hidden;
    background: var(--jk-bg);
    border: 1px solid var(--jk-border);
    border-radius: var(--jk-radius-lg);
}

.jk-learning-empty-mark {
    display: grid;
    color: #fff;
    background:
        radial-gradient(circle at 30% 20%, rgba(255,255,255,.18), transparent 25%),
        linear-gradient(145deg, var(--jk-learning-deep), var(--jk-learning));
    place-items: center;
    font-size: clamp(72px, 10vw, 132px);
    font-weight: 820;
    letter-spacing: -.08em;
}

.jk-learning-empty > div:last-child {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(36px, 6vw, 76px);
}

.jk-learning-empty h3 { margin: 0; color: var(--jk-ink); font-size: clamp(31px, 4vw, 50px); font-weight: 790; letter-spacing: -.055em; line-height: 1.15; word-break: keep-all; }
.jk-learning-empty > div:last-child > p:last-child { max-width: 600px; margin: 20px 0 0; color: var(--jk-muted); font-size: 15px; line-height: 1.75; word-break: keep-all; }

.jk-post-navigation { padding: 40px 0 80px; border-top: 1px solid var(--jk-border); }
.jk-post-navigation nav { display: grid; grid-template-columns: 1fr 1fr; gap: 38px; }
.jk-post-navigation nav > div:last-child { text-align: right; }
.jk-post-navigation a { display: inline-grid; gap: 8px; color: var(--jk-text); text-decoration: none; }
.jk-post-navigation a span { color: var(--jk-brand); font-size: 11px; font-weight: 750; }
.jk-post-navigation a strong { max-width: 420px; color: var(--jk-ink); font-size: 15px; line-height: 1.45; }

/* Sign in and private operations pages retained for the owner */
.gh-signin, .gh-automation-inner, .gh-automation-guard { max-width: 880px; padding: 44px; margin: 72px auto; background: var(--jk-surface); border: 1px solid var(--jk-border); border-radius: var(--jk-radius); }
.gh-signin h1, .gh-automation h1 { margin: 0; color: var(--jk-ink); font-size: clamp(36px, 6vw, 58px); }
.gh-signin-description, .gh-automation p { color: var(--jk-muted); line-height: 1.7; }
.gh-signin-form { display: grid; gap: 13px; margin-top: 32px; }
.gh-signin-form label { color: var(--jk-text); font-size: 13px; font-weight: 700; }
.gh-signin-form input { min-height: 50px; padding: 0 14px; color: var(--jk-ink); background: var(--jk-bg); border: 1px solid var(--jk-border); border-radius: 8px; }
.gh-signin-form .gh-btn, .gh-automation-actions a, .gh-automation-guard a { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 18px; color: #fff !important; background: var(--jk-ink) !important; border: 1px solid var(--jk-ink) !important; border-radius: 8px; font-weight: 700; text-decoration: none; }
.gh-signin-form .gh-secondary-btn { color: var(--jk-text) !important; background: transparent !important; border-color: var(--jk-border) !important; }
.gh-signin-status.is-error { color: var(--jk-danger); }
.gh-signin-status.is-success { color: var(--jk-signal); }
.gh-automation-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; }
.gh-automation-grid article { padding: 22px; background: var(--jk-bg); border: 1px solid var(--jk-border); border-radius: 10px; }
.gh-automation-grid h2 { color: var(--jk-ink); font-size: 19px; }
.gh-automation-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.gh-automation-safety { padding: 16px; margin: 24px 0; background: var(--jk-surface-soft); border: 1px solid var(--jk-border); border-radius: 9px; }

/* Native Ghost member signup and passwordless sign-in */
.jk-membership-page {
    min-height: calc(100vh - 220px);
    padding: clamp(58px, 8vw, 112px) 0 clamp(80px, 10vw, 140px);
    background:
        radial-gradient(circle at 13% 12%, color-mix(in srgb, var(--jk-brand) 13%, transparent), transparent 31%),
        linear-gradient(180deg, var(--jk-bg), var(--jk-surface-soft));
}

.jk-membership-shell {
    display: grid;
    grid-template-columns: minmax(0, .92fr) minmax(420px, .7fr);
    gap: clamp(54px, 8vw, 118px);
    align-items: center;
}

.jk-membership-intro { max-width: 650px; }
.jk-membership-intro .jk-eyebrow { color: var(--jk-brand); }
.jk-membership-intro h1 {
    margin: 14px 0 0;
    color: var(--jk-ink);
    font-size: clamp(48px, 6.8vw, 82px);
    font-weight: 820;
    letter-spacing: -.07em;
    line-height: 1.03;
    word-break: keep-all;
}
.jk-membership-intro > p:not(.jk-eyebrow) { max-width: 590px; margin: 26px 0 0; color: var(--jk-muted); font-size: 17px; line-height: 1.78; word-break: keep-all; }

.jk-membership-benefits { padding: 0; margin: 42px 0 0; border-top: 1px solid var(--jk-border); list-style: none; }
.jk-membership-benefits li { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 18px; padding: 19px 0; border-bottom: 1px solid var(--jk-border); }
.jk-membership-benefits li > span { padding-top: 3px; color: var(--jk-brand); font-size: 11px; font-weight: 820; letter-spacing: .12em; }
.jk-membership-benefits strong { color: var(--jk-ink); font-size: 16px; }
.jk-membership-benefits p { margin: 5px 0 0; color: var(--jk-muted); font-size: 13px; line-height: 1.6; }

.jk-membership-card {
    position: relative;
    padding: clamp(30px, 4vw, 48px);
    overflow: hidden;
    background: var(--jk-surface);
    border: 1px solid var(--jk-border);
    border-radius: 28px;
    box-shadow: var(--jk-shadow);
}
.jk-membership-card::before { position: absolute; top: 0; right: 0; left: 0; height: 4px; background: linear-gradient(90deg, var(--jk-brand), var(--jk-signal)); content: ""; }
.jk-membership-card-heading .jk-eyebrow, .jk-membership-signed-in .jk-eyebrow { color: var(--jk-brand); }
.jk-membership-card h2 { margin: 9px 0 0; color: var(--jk-ink); font-size: clamp(31px, 4vw, 43px); font-weight: 790; letter-spacing: -.055em; }
.jk-membership-card-heading > p:last-child { margin: 10px 0 0; color: var(--jk-muted); font-size: 14px; }

.jk-member-form { display: grid; gap: 11px; margin-top: 30px; }
.jk-member-form > label:not(.jk-member-consent) { color: var(--jk-text); font-size: 13px; font-weight: 740; }
.jk-member-form > input {
    min-height: 54px;
    padding: 0 16px;
    margin-bottom: 7px;
    color: var(--jk-ink);
    background: var(--jk-bg);
    border: 1px solid var(--jk-border);
    border-radius: 10px;
    font-size: 15px;
}
.jk-member-form > input:focus { background: var(--jk-surface); border-color: var(--jk-brand); outline: 3px solid color-mix(in srgb, var(--jk-brand) 15%, transparent); }

.jk-member-newsletters { display: grid; gap: 10px; padding: 16px 0 8px; margin: 0; border: 0; border-top: 1px solid var(--jk-border); }
.jk-member-newsletters legend { padding: 0 0 11px; color: var(--jk-text); font-size: 13px; font-weight: 740; }
.jk-member-newsletters label { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: 11px; align-items: start; padding: 12px; background: var(--jk-bg); border: 1px solid var(--jk-border); border-radius: 10px; cursor: pointer; }
.jk-member-newsletters input, .jk-member-consent input { width: 17px; height: 17px; margin: 2px 0 0; accent-color: var(--jk-brand); }
.jk-member-newsletters strong { display: block; color: var(--jk-ink); font-size: 13px; }
.jk-member-newsletters small { display: block; margin-top: 3px; color: var(--jk-muted); font-size: 11px; line-height: 1.45; }
.jk-member-consent { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: 10px; align-items: start; margin: 5px 0 7px; color: var(--jk-muted); font-size: 11px; line-height: 1.55; cursor: pointer; }

.jk-member-submit { width: 100%; min-height: 54px; margin-top: 4px; border: 0; cursor: pointer; }
.jk-member-submit-loading, .jk-member-form-success, .jk-member-form-error { display: none; }
.jk-member-form.loading .jk-member-submit-default { display: none; }
.jk-member-form.loading .jk-member-submit-loading { display: inline; }
.jk-member-form.success > :not(.jk-member-form-success):not(.jk-membership-switch) { display: none; }
.jk-member-form.success .jk-member-form-success { display: block; padding: 17px; color: var(--jk-text); background: color-mix(in srgb, var(--jk-signal) 13%, var(--jk-surface)); border: 1px solid color-mix(in srgb, var(--jk-signal) 35%, var(--jk-border)); border-radius: 11px; font-size: 13px; line-height: 1.65; }
.jk-member-form.error .jk-member-form-error { display: block; margin: 3px 0 0; color: var(--jk-danger); font-size: 12px; line-height: 1.5; }
.jk-membership-switch { margin: 20px 0 0; color: var(--jk-muted); font-size: 13px; text-align: center; }
.jk-membership-switch a, .jk-member-text-link { color: var(--jk-brand); font-weight: 740; }

.jk-membership-signed-in { display: grid; justify-items: start; }
.jk-membership-check { display: grid; width: 52px; height: 52px; margin-bottom: 26px; color: #fff; background: var(--jk-signal); border-radius: 16px; place-items: center; font-size: 25px; font-weight: 800; }
.jk-membership-signed-in > p:not(.jk-eyebrow) { margin: 15px 0 28px; color: var(--jk-muted); line-height: 1.65; }
.jk-membership-signed-in .jk-button { width: 100%; }
.jk-member-text-link { margin: 19px auto 0; font-size: 13px; }
.jk-signin-note { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 16px; align-items: start; padding: 20px; margin-top: 40px; background: color-mix(in srgb, var(--jk-brand) 8%, var(--jk-surface)); border: 1px solid var(--jk-border); border-radius: 14px; }
.jk-signin-note > span { display: grid; width: 42px; height: 42px; color: #fff; background: var(--jk-brand); border-radius: 12px; place-items: center; }
.jk-signin-note p { margin: 0; color: var(--jk-muted); font-size: 13px; line-height: 1.6; }
.jk-signin-note strong { display: block; margin-bottom: 3px; color: var(--jk-ink); font-size: 14px; }

@media (max-width: 1023px) {
    .jk-header-inner { gap: 24px; }
    .jk-primary-nav .nav { gap: 18px; }
    .jk-member-link { display: none; }
    .jk-hero-inner { grid-template-columns: 1fr 420px; gap: 44px; }
    .jk-hero-copy h1 { font-size: clamp(46px, 6.5vw, 68px); }
    .jk-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .jk-article-layout { grid-template-columns: 1fr minmax(0, 760px) 1fr; }
    .gh-toc { position: relative; top: auto; width: auto; max-height: none; padding: 16px 18px; margin-bottom: 36px; background: var(--jk-surface-soft); border: 1px solid var(--jk-border); border-radius: var(--jk-radius-sm); grid-column: 2; }
    .gh-toc summary { cursor: pointer; }
    .jk-article-column { grid-row: 2; }
    .jk-categories-hero { grid-template-columns: 1fr; gap: 30px; }
    .jk-categories-hero > p { max-width: 680px; }
    .jk-category-section { grid-template-columns: 1fr; gap: 36px; }
    .jk-learning-hero > .gh-inner { grid-template-columns: minmax(0, 1fr) 360px; gap: 42px; }
    .jk-learning-copy h1 { font-size: clamp(47px, 6.7vw, 67px); }
    .jk-learning-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .jk-learning-steps article:nth-child(3) { border-left: 0; }
    .jk-learning-steps article:nth-child(n+3) { border-top: 1px solid var(--jk-border); }
    .jk-membership-shell { grid-template-columns: minmax(0, 1fr) minmax(380px, .82fr); gap: 42px; }
    .jk-membership-intro h1 { font-size: clamp(45px, 6vw, 64px); }
}

@media (max-width: 767px) {
    .gh-inner { width: min(calc(100% - 32px), var(--jk-max)); }
    .jk-header-inner { position: relative; display: flex; min-height: 68px; justify-content: space-between; }
    .jk-brand-row { flex: 1; justify-content: space-between; }
    .jk-brand-mark { width: 32px; height: 32px; border-radius: 9px; font-size: 16px; }
    .jk-brand-name { font-size: 18px; }
    .jk-menu-toggle { display: block; margin-left: auto; }
    .jk-primary-nav { position: absolute; top: 68px; right: -16px; left: -16px; display: none; padding: 12px 16px 20px; background: var(--jk-bg); border-bottom: 1px solid var(--jk-border); box-shadow: 0 18px 34px rgba(20,36,70,.1); }
    .is-head-open .jk-primary-nav { display: block; }
    .jk-primary-nav .nav { align-items: stretch; flex-direction: column; gap: 0; }
    .jk-primary-nav .nav > li { border-bottom: 1px solid var(--jk-border); }
    .jk-primary-nav .nav > li:last-child { border-bottom: 0; }
    .jk-nav-primary-line > a { flex: 1; }
    .jk-primary-nav .nav a { display: block; padding: 13px 4px; font-size: 15px; }
    .jk-nav-submenu-toggle { width: 46px; height: 46px; }
    .jk-nav-submenu {
        position: static;
        visibility: visible;
        width: auto;
        max-height: 0;
        padding: 0 8px;
        overflow: hidden;
        background: transparent;
        border: 0;
        border-radius: 0;
        box-shadow: none;
        opacity: 1;
        pointer-events: none;
        transform: none;
        transition: max-height .22s ease, padding .22s ease;
    }
    .jk-nav-item:hover > .jk-nav-submenu,
    .jk-nav-item:focus-within > .jk-nav-submenu { max-height: 0; padding: 0 8px; pointer-events: none; }
    .jk-nav-item.is-submenu-open > .jk-nav-submenu { max-height: 360px; padding: 0 8px 12px; pointer-events: auto; }
    .jk-primary-nav .nav .jk-nav-submenu a { padding: 10px 12px; background: var(--jk-surface); font-size: 13px; }
    .jk-primary-nav .nav .jk-nav-submenu a + a { margin-top: 4px; }
    .jk-primary-nav .nav-current a::after,
    .jk-nav-item.is-current > .jk-nav-primary-line > a::after { right: auto; bottom: 8px; width: 24px; }
    .jk-mobile-subscribe { display: inline-flex; width: 100%; min-height: 44px; align-items: center; justify-content: center; margin-top: 10px; color: #fff; background: var(--jk-ink); border-radius: 9px; font-size: 14px; font-weight: 720; text-decoration: none; }
    .jk-mobile-member-actions > a:first-child { display: block; padding: 13px 4px; color: var(--jk-text); font-size: 15px; text-decoration: none; }
    .jk-header-actions { gap: 1px; }
    .jk-header-actions .jk-button-small { display: none; }
    .jk-icon-button { width: 36px; height: 36px; }

    .jk-hero { padding: 48px 0 64px; }
    .jk-hero-inner { grid-template-columns: 1fr; gap: 46px; }
    .jk-hero-copy h1 { font-size: clamp(43px, 13vw, 58px); line-height: 1.04; }
    .jk-hero-description { margin-top: 22px; font-size: 16px; line-height: 1.65; }
    .jk-hero-actions { align-items: flex-start; flex-direction: column; gap: 16px; margin-top: 28px; }
    .jk-lead-card { border-radius: 20px; }
    .jk-lead-content { padding: 22px 20px 24px; }
    .jk-lead-content h2 { font-size: 27px; }

    .jk-proof-inner { grid-template-columns: 1fr; padding: 14px 0; }
    .jk-proof-inner div { padding: 18px 4px; border-left: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
    .jk-proof-inner div:last-child { border-right: 0; border-bottom: 0; }
    .jk-proof-inner span br { display: none; }

    .jk-latest, .jk-topics, .jk-related { padding: 68px 0; }
    .jk-section-heading { align-items: flex-start; flex-direction: column; gap: 16px; margin-bottom: 30px; }
    .jk-section-heading h2 { font-size: 34px; }
    .jk-card-grid { grid-template-columns: 1fr; gap: 38px; }
    .jk-card-media { border-radius: 15px; }
    .jk-card-title { font-size: 25px; }
    .jk-card-excerpt { font-size: 14px; }

    .jk-topic-grid { grid-template-columns: 1fr; border-radius: 20px; }
    .jk-topic-card { min-height: 250px; padding: 26px; }
    .jk-topic-card:nth-child(even) { border-left: 0; }
    .jk-topic-card:nth-child(n+2) { border-top: 1px solid var(--jk-border); }
    .jk-topic-grid .jk-topic-learning:last-child { min-height: 250px; grid-column: auto; }

    .jk-newsletter-inner { grid-template-columns: 1fr; gap: 34px; }
    .jk-newsletter-copy h2 { font-size: 38px; }
    .jk-newsletter-input-row { grid-template-columns: 1fr; background: transparent; padding: 0; }
    .jk-newsletter-form input { height: 54px; padding: 0 15px; background: #fff; border-radius: 10px; }
    .jk-newsletter-form .jk-button { width: 100%; }

    .jk-footer-inner { grid-template-columns: 1fr; gap: 46px; }
    .jk-footer-nav { grid-template-columns: 1fr 1fr; }
    .jk-footer-bottom { align-items: flex-start; flex-direction: column; justify-content: center; padding: 20px 0; }

    .jk-archive-main, .jk-page-main { padding: 58px 0 90px; }
    .jk-archive-header h1, .jk-page-header h1, .jk-author-header h1 { font-size: 51px; }
    .jk-archive-header > p:last-child { font-size: 16px; }
    .jk-author-header { grid-template-columns: 76px minmax(0, 1fr); gap: 18px; }
    .jk-author-header img, .jk-author-header .jk-author-placeholder { width: 76px; height: 76px; }

    .jk-article-header { padding: 48px 0 36px; }
    .jk-breadcrumb { margin-bottom: 28px; }
    .jk-article-header h1 { font-size: clamp(39px, 11vw, 55px); line-height: 1.13; }
    .jk-article-deck { margin-top: 20px; font-size: 17px; }
    .jk-feature-image { width: 100%; margin-bottom: 48px; }
    .jk-feature-image img { border-radius: 0; }
    .jk-article-layout { display: block; width: min(calc(100% - 32px), 760px); }
    .jk-share-rail { display: none; }
    .gh-toc { margin-bottom: 34px; }
    .gh-content { font-size: 17px; line-height: 1.85; }
    .jk-article-actions { align-items: stretch; flex-wrap: wrap; }
    .jk-article-actions span { width: 100%; margin: 0 0 5px; }
    .jk-comments { padding: 42px 0; }
    .jk-comments-inner { width: min(calc(100% - 32px), 900px); border-radius: 18px; }
    .jk-comments-header { grid-template-columns: 42px minmax(0, 1fr); gap: 14px; padding: 22px 18px 20px; }
    .jk-comments-symbol { width: 42px; height: 42px; border-radius: 12px; }
    .jk-comments-header h2 { font-size: 25px; }
    .jk-comments-header > div:nth-child(2) > p:last-child { font-size: 11px; }
    .jk-comments-body { padding: 10px 12px 14px; }
    .jk-comments .gh-comments { min-height: 152px; }
    .jk-floating-subscribe { right: 12px; bottom: 12px; left: 12px; width: auto; gap: 12px; padding: 16px 44px 16px 16px; border-radius: 14px; }
    .jk-floating-subscribe-copy strong { font-size: 14px; }
    .jk-floating-subscribe-copy strong br { display: none; }
    .jk-floating-subscribe > a { min-height: 38px; }
    .jk-categories-page { padding-top: 56px; }
    .jk-categories-hero { gap: 24px; }
    .jk-categories-hero h1 { font-size: 51px; }
    .jk-categories-hero > p { padding-left: 17px; font-size: 15px; }
    .jk-category-section { padding: 42px 0; }
    .jk-category-section > header { grid-template-columns: 46px minmax(0, 1fr); gap: 15px; }
    .jk-category-number { width: 42px; height: 42px; }
    .jk-category-title h2 { font-size: 34px; }
    .jk-learning-hero { padding: 52px 0 72px; }
    .jk-learning-hero > .gh-inner { grid-template-columns: 1fr; gap: 44px; }
    .jk-learning-copy h1 { font-size: clamp(42px, 12vw, 57px); line-height: 1.07; }
    .jk-learning-copy > p:not(.jk-eyebrow) { margin-top: 22px; font-size: 16px; }
    .jk-learning-actions { align-items: flex-start; flex-direction: column; gap: 16px; margin-top: 28px; }
    .jk-learning-visual { width: 100%; border-radius: 24px; }
    .jk-learning-core { width: 118px; height: 118px; }
    .jk-learning-core strong { font-size: 40px; }
    .jk-learning-orbit { width: 41px; height: 41px; }
    .jk-learning-steps { grid-template-columns: 1fr; border-radius: 20px; }
    .jk-learning-steps article { min-height: 220px; border-top: 1px solid var(--jk-border); border-left: 0; }
    .jk-learning-steps article:first-child { border-top: 0; }
    .jk-learning-steps h3 { margin-top: 58px; }
    .jk-learning-empty { grid-template-columns: 1fr; min-height: 0; border-radius: 20px; }
    .jk-learning-empty-mark { min-height: 210px; font-size: 84px; }
    .jk-learning-empty > div:last-child { padding: 34px 24px 40px; }
    .jk-learning-empty h3 { font-size: 34px; }
    .jk-learning-format > .gh-inner { grid-template-columns: 1fr; gap: 42px; }
    .jk-learning-format-heading h2 { font-size: 40px; }
    .jk-learning-format-list li { grid-template-columns: 38px minmax(0, 1fr); gap: 12px; padding: 20px 0; }
    .jk-learning-entry-meta { grid-template-columns: 1fr; gap: 10px; padding: 18px; }
    .jk-learning-entry-meta a { margin-top: 2px; }
    .jk-post-navigation nav { grid-template-columns: 1fr; }
    .jk-post-navigation nav > div:last-child { text-align: left; }
    .gh-automation-grid { grid-template-columns: 1fr; }
    .gh-signin, .gh-automation-inner, .gh-automation-guard { padding: 28px 20px; margin: 38px 16px; }
    .jk-membership-page { padding: 48px 0 82px; }
    .jk-membership-shell { grid-template-columns: 1fr; gap: 38px; }
    .jk-membership-intro h1 { font-size: clamp(42px, 12vw, 58px); }
    .jk-membership-intro > p:not(.jk-eyebrow) { margin-top: 20px; font-size: 15px; }
    .jk-membership-benefits { margin-top: 30px; }
    .jk-membership-card { padding: 30px 22px; border-radius: 20px; }
    .jk-membership-card h2 { font-size: 34px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}