@import url("../fonts/pretendard.css");

:root {
    --bg: #fcfbf9;
    --surface: #ffffff;
    --surface-muted: #f7f4ef;
    --surface-strong: #131313;
    --text: #1b1918;
    --text-soft: #6e6661;
    --text-dim: #9a9087;
    --border: #ece5dc;
    --accent: #f0632f;
    --accent-strong: #d84d1d;
    --shadow: 0 8px 24px rgba(20, 16, 12, 0.035);
    --radius: 18px;
    --radius-sm: 14px;
    --sidebar-left: 240px;
    --sidebar-right: 320px;
    --content-column: 720px;
    --content-measure: 680px;
    --topbar-height: 62px;
    --shell-width: calc(var(--sidebar-left) + var(--content-column) + var(--sidebar-right));
    --font-sans: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
}

body.theme-dark {
    --bg: #111111;
    --surface: #131313;
    --surface-muted: #1a1a1a;
    --surface-strong: #f4f1ed;
    --text: #f3efe9;
    --text-soft: #ada59c;
    --text-dim: #847b73;
    --border: #272727;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

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

button,
input {
    font: inherit;
}

.site-shell {
    display: grid;
    grid-template-columns: var(--sidebar-left) minmax(0, var(--content-column)) var(--sidebar-right);
    min-height: calc(100vh - var(--topbar-height));
    width: min(100%, var(--shell-width));
    margin: 0 auto;
}

.site-shell-wrap {
    border-top: 1px solid var(--border);
}

.sidebar,
.site-main {
    min-width: 0;
}

.sidebar {
    border-right: 1px solid var(--border);
    background: var(--bg);
}

.sidebar--right {
    border-right: 0;
    border-left: 1px solid var(--border);
}

.sidebar__inner {
    position: sticky;
    top: var(--topbar-height);
    height: calc(100vh - var(--topbar-height));
    padding: 18px 16px;
    overflow-y: auto;
}

.sidebar__inner--right {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.brand__mark {
    width: 15px;
    height: 15px;
    border: 2px solid currentColor;
    border-radius: 4px;
}

.brand__logo {
    max-height: 32px;
}

.brand--topbar {
    margin-bottom: 0;
}

.menu-groups {
    display: grid;
    gap: 2px;
}

.menu-group {
    border-bottom: 0;
}

.menu-group__trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 8px 10px;
    border: 0;
    border-radius: 14px;
    background: none;
    color: inherit;
    cursor: pointer;
    transition: background-color 0.22s ease, color 0.22s ease;
}

.menu-group__content {
    height: 0;
    padding: 0;
    transition: height 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: height;
}

.menu-group__content > * {
    padding: 4px 0 10px;
}

.menu-group .nav {
    margin: 0;
    padding: 0;
    list-style: none;
}

.menu-group .nav li + li,
.link-list li + li {
    margin-top: 4px;
}

.menu-group .nav a,
.link-list a {
    color: var(--text-soft);
}

.menu-group .nav a {
    display: block;
    padding: 7px 14px 7px 30px;
    border-radius: 12px;
    transition: background-color 0.22s ease, color 0.22s ease;
}

.menu-group .nav a:hover,
.menu-sub-link:hover {
    background: var(--surface-muted);
    color: var(--text);
}

.link-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.menu-sub-link {
    display: block;
    padding: 7px 14px 7px 30px;
    border-radius: 12px;
    transition: background-color 0.22s ease, color 0.22s ease;
}

.menu-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.menu-link__marker {
    position: relative;
    flex: 0 0 auto;
    width: 6px;
    height: 18px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--border) 92%, #ffffff 8%);
    transform-origin: center;
    transition: width 0.22s ease, height 0.22s ease, border-radius 0.22s ease, background-color 0.22s ease, transform 0.22s ease;
}

.menu-link__label {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.015em;
}

.menu-group__trigger:hover,
.menu-group__trigger[aria-expanded="true"] {
    background: var(--surface-muted);
}

.menu-group__trigger:hover .menu-link__marker,
.menu-group__trigger[aria-expanded="true"] .menu-link__marker {
    width: 12px;
    height: 12px;
    border-radius: 999px;
    background: #cfc7be;
    transform: translateX(1px);
}

.menu-group__chevron {
    color: var(--text-dim);
    font-size: 14px;
    transition: transform 0.22s ease, color 0.22s ease;
}

.menu-group.is-open .menu-group__chevron {
    transform: rotate(180deg);
    color: var(--text-soft);
}

.sidebar-card {
    padding: 20px 0 0;
    border-top: 1px solid var(--border);
}

.sidebar-card--tight {
    padding-top: 14px;
}

.sidebar-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.sidebar-card__header h2 {
    margin: 0;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-soft);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 16px;
}

.category-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 2px;
    border-radius: 10px;
    transition: color 0.2s ease;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.category-chip:hover,
.author-list__item:hover,
.recommended-list a:hover {
    background: transparent;
}

.category-chip__dot {
    width: 5px;
    height: 19px;
    border-radius: 999px;
    background: linear-gradient(135deg, #5d66ff, #29b6f6);
}

.category-chip__count {
    margin-left: auto;
    color: var(--text-dim);
    font-size: 11px;
}

.author-list {
    display: grid;
    gap: 10px;
}

.author-list__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 8px;
    border-radius: 12px;
    transition: background-color 0.22s ease;
}

.author-list__item strong,
.author-list__item small {
    display: block;
}

.author-list__item small {
    color: var(--text-soft);
}

.sidebar-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 14px;
    align-items: center;
    margin-top: auto;
    padding-top: 16px;
    color: var(--text-soft);
    font-size: 13px;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: var(--sidebar-left) minmax(0, var(--content-column)) var(--sidebar-right);
    gap: 0;
    align-items: center;
    height: var(--topbar-height);
    width: min(100%, var(--shell-width));
    margin: 0 auto;
    background: color-mix(in srgb, var(--bg) 94%, transparent);
    backdrop-filter: blur(10px);
}

.topbar__brand,
.topbar__search {
    min-width: 0;
}

.topbar__brand {
    padding: 0 16px;
    border-right: 1px solid var(--border);
}

.topbar__search {
    display: flex;
    justify-content: center;
    padding: 0 18px;
}

.search-trigger,
.search-modal__input {
    display: flex;
    align-items: center;
    gap: 10px;
    width: min(100%, 320px);
    padding: 10px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-soft);
}

.search-trigger {
    cursor: pointer;
    box-shadow: none;
}

.search-shortcut {
    margin-left: auto;
    padding: 1px 7px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 12px;
}

.topbar__actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    padding: 0 16px;
    border-left: 1px solid var(--border);
}

.button,
.gh-subscribe-form button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 10px 16px;
    border: 0;
    border-radius: 10px;
    background: var(--surface-strong);
    color: var(--bg);
    font-weight: 700;
    cursor: pointer;
    box-shadow: none;
}

.button--accent {
    background: var(--accent);
    color: #fff;
}

.button--accent:hover {
    background: var(--accent-strong);
}

.button--light {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
}

.button--subscribe {
    padding-inline: 14px;
}

.icon-button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: inherit;
    cursor: pointer;
}

.icon-button--search-mobile {
    display: none;
}

.icon-button--plain {
    border: 0;
    background: transparent;
}

.content-area {
    padding: 0 20px 44px;
}

.hero {
    display: grid;
    justify-items: center;
    gap: 16px;
    padding: 38px 20px 28px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.hero__title {
    max-width: 680px;
    margin: 0;
    font-size: clamp(2rem, 3vw, 3.1rem);
    line-height: 1.08;
    letter-spacing: -0.04em;
    font-weight: 800;
}

.hero__description,
.section-description {
    max-width: 620px;
    margin: 0;
    color: var(--text-soft);
    font-size: 1rem;
    line-height: 1.7;
}

.subscribe-form,
.gh-subscribe-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.gh-subscribe-form {
    width: 100%;
}

.gh-subscribe-form .gh-subscribe-input,
.subscribe-form input {
    min-width: 0;
    flex: 1 1 180px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    color: inherit;
}

.subscribe-form--hero {
    justify-content: center;
}

.stack-section {
    padding: 18px 0;
}

.section-header {
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border);
}

.section-header--author {
    padding-top: 8px;
}

.section-title {
    margin: 0 0 8px;
    font-size: clamp(1.7rem, 2vw, 2.15rem);
    line-height: 1.12;
    letter-spacing: -0.03em;
}

.author-header {
    display: flex;
    align-items: center;
    gap: 18px;
}

.tab-row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}

.tab-row__button {
    padding: 10px 0;
    border: 0;
    border-bottom: 2px solid transparent;
    background: none;
    color: var(--text-soft);
    font-weight: 700;
    cursor: pointer;
}

.tab-row__button.is-active {
    color: var(--text);
    border-color: var(--accent);
}

.tab-panel {
    display: none;
}

.tab-panel.is-active {
    display: block;
}

.post-list {
    display: grid;
}

.post-card {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}

.post-card__media img,
.post-card__media-fallback {
    width: 96px;
    height: 72px;
    object-fit: cover;
    border-radius: 10px;
    background: var(--surface-muted);
}

.post-card__media-fallback {
    display: grid;
    place-items: center;
    padding: 8px;
    color: var(--text-soft);
    font-size: 12px;
    text-align: center;
}

.post-card__content h2 {
    margin: 0 0 6px;
    font-size: 1.04rem;
    line-height: 1.34;
    letter-spacing: -0.01em;
}

.post-card__content p {
    margin: 0 0 8px;
    color: var(--text-soft);
    font-size: 0.94rem;
    line-height: 1.55;
}

.post-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--text-soft);
    font-size: 13px;
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: 999px;
    background: var(--surface-muted);
    color: var(--text);
    font-size: 12px;
    font-weight: 700;
}

.category-overview {
    display: grid;
}

.category-overview__row {
    display: grid;
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
    gap: 24px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

.category-overview__row h2 {
    margin: 0 0 10px;
}

.category-overview__row p {
    margin: 0 0 14px;
    color: var(--text-soft);
    line-height: 1.6;
}

.category-overview__row ol {
    margin: 0;
    padding-left: 18px;
    display: grid;
    gap: 10px;
}

.site-icon,
.site-icon--fallback {
    width: 54px;
    height: 54px;
    border-radius: 16px;
    object-fit: cover;
    background: var(--surface-strong);
    color: var(--bg);
    display: grid;
    place-items: center;
    font-weight: 800;
}

.about-block h2,
.author-feature h3 {
    margin: 0 0 4px;
}

.about-block p,
.author-feature p,
.copyright {
    margin: 0;
    color: var(--text-soft);
    line-height: 1.55;
}

.social-row {
    display: flex;
    gap: 12px;
}

.social-row a {
    color: var(--text-soft);
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 700;
}

.recommended-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 8px;
}

.recommended-list a {
    display: block;
    padding: 6px 0;
    border-radius: 10px;
    line-height: 1.5;
    font-size: 0.94rem;
}

.author-feature {
    display: flex;
    gap: 14px;
    align-items: center;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.avatar,
.avatar--fallback {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    object-fit: cover;
    background: linear-gradient(135deg, #ff8a65, #ffb74d);
    color: #fff;
    display: inline-grid;
    place-items: center;
    font-weight: 800;
}

.avatar--large {
    width: 56px;
    height: 56px;
}

.post-template {
    max-width: var(--content-measure);
    margin: 0 auto;
    padding: 24px 0 10px;
}

.post-header {
    display: grid;
    gap: 14px;
    padding-top: 14px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.post-tag {
    color: var(--accent);
    font-weight: 700;
}

.post-title {
    margin: 0;
    font-size: clamp(2rem, 3vw, 2.8rem);
    line-height: 1.08;
    letter-spacing: -0.04em;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--text-soft);
}

.post-feature-image img {
    width: 100%;
    border-radius: 14px;
}

.kg-content {
    font-size: 1.02rem;
    line-height: 1.88;
}

.kg-content > * + * {
    margin-top: 1.2em;
}

.kg-content .kg-width-wide {
    position: relative;
    width: min(100vw - 48px, 820px);
    max-width: none;
    margin-left: 50%;
    transform: translateX(-50%);
}

.kg-content .kg-width-full {
    position: relative;
    width: 100vw;
    max-width: none;
    margin-left: 50%;
    transform: translateX(-50%);
}

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

.page-template .kg-content > .kg-width-full:first-child,
.page-template .kg-content > .kg-width-wide:first-child {
    margin-top: 0;
}

.page-template .kg-content > .kg-width-full:last-child,
.page-template .kg-content > .kg-width-wide:last-child {
    margin-bottom: 0;
}

.kg-content .kg-width-full + .kg-width-full:not(.kg-card-hascaption),
.kg-content .kg-width-wide + .kg-width-wide:not(.kg-card-hascaption),
.kg-content .kg-width-full + .kg-width-wide:not(.kg-card-hascaption),
.kg-content .kg-width-wide + .kg-width-full:not(.kg-card-hascaption) {
    margin-top: 0;
}

.kg-content blockquote {
    margin: 1.4em 0;
    padding: 1em 1.1em;
    border-left: 4px solid var(--accent);
    background: color-mix(in srgb, var(--accent) 10%, var(--surface));
    border-radius: 12px;
}

.membership-cta,
.comments-empty {
    display: grid;
    justify-items: center;
    gap: 12px;
    padding: 36px 24px;
    margin-top: 28px;
    background: var(--surface-strong);
    color: var(--bg);
    border-radius: 20px;
    text-align: center;
}

.comments-empty {
    background: var(--surface-muted);
    color: var(--text);
    border: 1px solid var(--border);
}

.author-inline-card,
.discussion-panel,
.post-navigation {
    max-width: var(--content-measure);
    margin-inline: auto;
}

.author-inline-card {
    display: flex;
    gap: 14px;
    align-items: center;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.discussion-panel {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.discussion-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 18px;
}

.discussion-header h2 {
    margin: 0;
}

.post-navigation {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 24px 0;
    border-top: 1px solid var(--border);
}

.post-navigation__link {
    display: block;
    flex: 1 1 0;
    padding: 12px 0;
}

.post-navigation__link small {
    display: block;
    margin-bottom: 4px;
    color: var(--text-soft);
    text-transform: uppercase;
}

.post-navigation__link--next {
    text-align: right;
}

.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding-top: 20px;
}

.pagination__link {
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.pagination__status {
    color: var(--text-soft);
}

.search-modal[hidden] {
    display: none;
}

.search-modal {
    position: fixed;
    inset: 0;
    z-index: 80;
}

.search-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 10, 0.42);
    backdrop-filter: blur(4px);
}

.search-modal__panel {
    position: relative;
    width: min(100%, 720px);
    margin: 56px auto;
    padding: 0 18px;
}

.search-modal__input input {
    flex: 1;
    border: 0;
    background: transparent;
    color: inherit;
    outline: none;
}

.search-modal__body {
    margin-top: 14px;
    padding: 18px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    max-height: 70vh;
    overflow: auto;
}

.search-modal__hint,
.search-empty {
    color: var(--text-soft);
}

.search-result {
    display: block;
    padding: 10px 4px;
    border-bottom: 1px solid var(--border);
}

.search-result:last-child {
    border-bottom: 0;
}

@media (max-width: 1240px) {
    .topbar {
        width: 100%;
        grid-template-columns: 240px minmax(0, 1fr);
    }

    .topbar__actions {
        border-left: 0;
    }

    .site-shell {
        width: 100%;
        grid-template-columns: 240px minmax(0, 1fr);
    }

    .sidebar--right {
        display: none;
    }
}

@media (max-width: 960px) {
    .topbar {
        grid-template-columns: 1fr;
        padding: 0 14px;
        border-bottom: 1px solid var(--border);
    }

    .topbar__brand,
    .topbar__actions,
    .topbar__search {
        border: 0;
        padding: 0;
    }

    .topbar__brand {
        grid-row: 1;
    }

    .topbar__search {
        display: none;
    }

    .topbar__actions {
        position: absolute;
        right: 14px;
        top: 50%;
        transform: translateY(-50%);
    }

    .icon-button--search-mobile {
        display: inline-flex;
    }

    .site-shell {
        grid-template-columns: 1fr;
    }

    .sidebar--left {
        display: none;
    }

    .content-area {
        padding-inline: 14px;
    }

    .hero {
        padding-inline: 0;
    }

    .category-overview__row {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

@media (max-width: 640px) {
    .topbar {
        padding-inline: 16px;
    }

    .button--accent {
        padding-inline: 14px;
        font-size: 0.95rem;
    }

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

    .post-card__media img,
    .post-card__media-fallback {
        width: 100%;
        height: 180px;
    }

    .post-navigation {
        flex-direction: column;
    }

    .post-navigation__link--next {
        text-align: left;
    }
}