:root {
    --ink: #0f1d21;
    --ink2: #1c3138;
    --teal: #0c8a87;
    --teal-d: #086b69;
    --mint: #e4f2f1;
    --orange: #f2701b;
    --bg: #f1f5f5;
    --card: #fff;
    --line: #d5e1e1;
    --mut: #5d7075;
    --sans: -apple-system,"Segoe UI",Roboto,Arial,sans-serif;
    --mono: ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font: 17px/1.7 var(--sans);
    color: var(--ink);
    background: var(--bg);
}

a {
    color: var(--teal-d);
}

a:hover {
    color: var(--orange);
}

img {
    max-width: 100%;
    height: auto;
}

ul,
ol {
    margin: 0;
    padding: 0;
}

.in {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 28px;
}

.top {
    background: var(--ink);
}

.top .in {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px 32px;
    min-height: 76px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 0 0 auto;
    color: #fff;
    text-decoration: none;
}

.brand:hover {
    color: #fff;
}

.mark {
    display: block;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: #fff;
}

.brand span {
    display: block;
    line-height: 1.25;
}

.brand b {
    display: block;
    font-size: 20px;
}

.brand small {
    display: block;
    font: 12px/1.3 var(--mono);
    letter-spacing: .06em;
    text-transform: uppercase;
    color: #8fc9c7;
}

.nav ul {
    display: flex;
    gap: 6px;
    list-style: none;
}

.nav a {
    display: block;
    padding: 8px 16px;
    font-size: 15px;
    line-height: 1.3;
    white-space: nowrap;
    color: #d5e6e6;
    border-radius: 999px;
    text-decoration: none;
}

.nav a:hover {
    color: #fff;
    background: var(--ink2);
}

.nav a.on {
    color: #fff;
    background: var(--teal);
}

.phead {
    background: linear-gradient(135deg,var(--ink2) 0%,#12474a 100%);
    color: #fff;
}

.phead .in {
    display: grid;
    grid-template-columns: minmax(0,1.1fr) minmax(0,1fr);
    gap: 0 56px;
    align-items: center;
    padding-top: 22px;
    padding-bottom: 56px;
}

.crumbs {
    grid-column: 1/-1;
    margin-bottom: 30px;
    font: 13px/1.4 var(--mono);
    color: #8fc9c7;
}

.crumbs a {
    color: #8fc9c7;
    text-decoration: none;
}

.crumbs a:hover {
    color: #fff;
}

.crumbs span {
    margin: 0 8px;
}

h1 {
    margin: 0;
    font-size: 44px;
    line-height: 1.12;
    letter-spacing: -.015em;
}

.meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 14px;
    margin: 20px 0 0;
    font: 13.5px/1.3 var(--mono);
    color: #8fc9c7;
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    font: 12.5px/1.3 var(--mono);
    text-transform: uppercase;
    letter-spacing: .06em;
    color: #fff;
    background: var(--orange);
    border-radius: 999px;
    text-decoration: none;
}

a.tag:hover {
    color: #fff;
    background: #d95f0e;
}

.lead {
    max-width: 560px;
    margin: 18px 0 0;
    font-size: 19px;
    line-height: 1.55;
    color: #cfe5e4;
}

.cover {
    margin: 0;
    overflow: hidden;
    border-radius: 18px;
    background: var(--ink);
}

.cover img {
    display: block;
    width: 100%;
    height: auto;
}

.layout {
    display: grid;
    grid-template-columns: minmax(0,1fr) 300px;
    grid-template-areas: "post toc" "post rub";
    grid-template-rows: auto 1fr;
    gap: 28px 48px;
    padding-top: 56px;
    padding-bottom: 100px;
}

.post {
    grid-area: post;
    min-width: 0;
    padding: 44px 52px;
    font-size: 18px;
    line-height: 1.75;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 20px;
}

.post > :first-child {
    margin-top: 0;
}

.post p {
    margin: 0 0 18px;
}

.post h2 {
    margin: 48px 0 20px;
    padding-top: 28px;
    font-size: 30px;
    line-height: 1.2;
    letter-spacing: -.01em;
    border-top: 1px solid var(--line);
}

.post h2:first-child {
    padding-top: 0;
    border-top: 0;
}

.post h3 {
    margin: 34px 0 14px;
    font-size: 23px;
    line-height: 1.25;
    color: var(--teal-d);
}

.post ul,
.post ol {
    margin: 0 0 20px;
    padding-left: 26px;
}

.post li {
    margin-bottom: 8px;
    padding-left: 4px;
}

.post ul li::marker {
    color: var(--orange);
}

.post ol li::marker {
    font-weight: 700;
    color: var(--teal);
}

.post figure {
    margin: 28px 0;
}

.post figure img {
    display: block;
    margin: 0 auto;
    border-radius: 14px;
}

.post blockquote {
    position: relative;
    margin: 30px 0;
    padding: 26px 30px 12px 70px;
    background: var(--mint);
    border-radius: 16px;
}

.post blockquote::before {
    content: "\201C";
    position: absolute;
    top: 14px;
    left: 22px;
    font: 700 64px/1 Georgia,serif;
    color: var(--orange);
}

.post blockquote p {
    font-size: 19px;
    font-weight: 600;
    line-height: 1.55;
}

.tw {
    margin: 28px 0;
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 14px;
}

.post table {
    width: 100%;
    min-width: 560px;
    border-collapse: collapse;
    font-size: 16px;
    line-height: 1.5;
}

.post th {
    padding: 14px 16px;
    text-align: left;
    color: #fff;
    background: var(--teal-d);
}

.post td {
    padding: 12px 16px;
    border-top: 1px solid var(--line);
}

.post tr:nth-child(even) td {
    background: #f4f9f9;
}

.post td:first-child {
    font-weight: 600;
}

.toc,
.rub {
    padding: 22px 24px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 18px;
}

.toc {
    grid-area: toc;
    align-self: start;
    position: sticky;
    top: 20px;
}

.rub {
    grid-area: rub;
    align-self: start;
}

.lab {
    margin: 0 0 12px;
    font: 12.5px/1.3 var(--mono);
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--mut);
}

.toc ul,
.rub ul {
    list-style: none;
}

.toc li {
    margin: 0;
    padding: 7px 0;
    font-size: 15px;
    line-height: 1.4;
    border-top: 1px solid var(--line);
}

.toc li:first-child {
    border-top: 0;
}

.toc li.h3 {
    padding-left: 16px;
    font-size: 14px;
}

.toc a,
.rub a {
    text-decoration: none;
}

.rub li {
    padding: 6px 0;
    font-size: 16px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(3,minmax(0,1fr));
    gap: 28px;
    margin: 0;
    padding: 56px 0 100px;
    list-style: none;
}

.card {
    overflow: hidden;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 18px;
}

.card figure {
    margin: 0;
}

.card img {
    display: block;
    width: 100%;
    height: auto;
}

.card > div {
    padding: 20px 22px 24px;
}

.card .meta {
    margin: 0 0 10px;
    color: var(--mut);
}

.card h2 {
    margin: 0;
    font-size: 20px;
    line-height: 1.3;
}

.ft {
    padding: 40px 0 44px;
    color: #9db8ba;
    background: var(--ink);
    font-size: 15px;
}

.ft b {
    display: block;
    font-size: 19px;
    color: #fff;
}

.ft span {
    display: block;
    margin-top: 2px;
    font: 12.5px/1.4 var(--mono);
    letter-spacing: .06em;
    text-transform: uppercase;
    color: #8fc9c7;
}

.ft p {
    margin: 18px 0 0;
}

@media(max-width:1000px) {
    .phead .in {
        grid-template-columns: minmax(0,1fr);
        gap: 30px;
    }
    h1 {
        font-size: 36px;
    }
    .layout {
        grid-template-columns: minmax(0,1fr);
        grid-template-areas: "toc" "post" "rub";
        gap: 24px;
    }
    .toc {
        position: static;
    }
    .cards {
        grid-template-columns: repeat(2,minmax(0,1fr));
    }
}

@media(max-width:640px) {
    body {
        font-size: 16px;
    }
    .in {
        padding: 0 16px;
    }
    .top .in {
        flex-wrap: wrap;
        padding-top: 14px;
        padding-bottom: 0;
        min-height: 0;
    }
    .nav {
        width: 100%;
        margin: 0 -16px;
        padding: 0 16px;
        overflow-x: auto;
    }
    .nav ul {
        padding-bottom: 14px;
    }
    h1 {
        font-size: 29px;
    }
    .phead .in {
        padding-bottom: 36px;
    }
    .crumbs {
        margin-bottom: 20px;
    }
    .layout {
        padding-top: 32px;
        padding-bottom: 60px;
    }
    .post {
        padding: 26px 20px;
        font-size: 17px;
        border-radius: 16px;
    }
    .post h2 {
        margin-top: 36px;
        font-size: 25px;
    }
    .post h3 {
        font-size: 20px;
    }
    .post blockquote {
        padding: 22px 20px 8px 54px;
    }
    .post blockquote::before {
        left: 14px;
        font-size: 52px;
    }
    .post blockquote p {
        font-size: 17px;
    }
    .cards {
        grid-template-columns: minmax(0,1fr);
        gap: 20px;
        padding: 32px 0 60px;
    }
}