:root {
  --ink: #111513;
  --muted: #5d6863;
  --line: #dfe6e2;
  --soft: #f4f7f5;
  --paper: #ffffff;
  --green: #123f32;
  --green-2: #1c5745;
  --mint: #dcece4;
  --acid: #c9e78a;
  --warm: #f4efe5;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(18, 63, 50, 0.09);
  --shell: min(1180px, calc(100% - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; font-size: 17px; line-height: 1.66; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { color: inherit; }
img { max-width: 100%; }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute!important; width: 1px!important; height: 1px!important; padding: 0!important; margin: -1px!important; overflow: hidden!important; clip: rect(0, 0, 0, 0)!important; white-space: nowrap!important; border: 0!important; }
.skip-link { position: fixed; z-index: 999; left: 18px; top: 10px; transform: translateY(-150%); padding: 10px 16px; color: #fff; background: var(--green); border-radius: 8px; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid #0b5f43; outline-offset: 3px; }
::selection { color: #fff; background: var(--green-2); }

.site-header { position: sticky; z-index: 100; top: 0; border-bottom: 1px solid rgba(223, 230, 226, .92); background: rgba(255, 255, 255, .94); backdrop-filter: blur(16px); }
.header-inner { height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 13px; flex: 0 0 auto; }
.brand-mark { position: relative; width: 29px; height: 36px; border-radius: 3px 11px 3px 3px; background: var(--green); box-shadow: 7px 6px 0 var(--mint); transform: translateY(-2px); }
.brand-mark::before, .brand-mark::after, .brand-mark span { content: ""; position: absolute; left: 7px; height: 2px; background: rgba(255,255,255,.75); border-radius: 4px; }
.brand-mark::before { top: 10px; width: 14px; }
.brand-mark::after { top: 16px; width: 11px; }
.brand-mark span { top: 22px; width: 14px; }
.brand-name { font-size: 18px; font-weight: 850; letter-spacing: .06em; line-height: 1; }
.brand-name span { color: var(--green-2); }
.desktop-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.desktop-nav a { position: relative; color: #303733; font-size: 15px; font-weight: 650; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px; background: var(--green); transition: right .2s ease; }
.desktop-nav a:hover::after, .desktop-nav a[aria-current="page"]::after { right: 0; }
.desktop-nav a[aria-current="page"] { color: var(--green); }
.header-actions { display: flex; gap: 8px; }
.icon-button, .menu-button, .dialog-close { border: 0; background: transparent; cursor: pointer; }
.icon-button { min-height: 42px; display: flex; align-items: center; gap: 8px; padding: 7px 12px; border: 1px solid var(--line); border-radius: 12px; }
.icon-button span { font-size: 24px; line-height: 0; transform: rotate(-20deg); }
.icon-button b { font-size: 13px; }
.menu-button { display: none; width: 44px; height: 44px; padding: 10px; border: 1px solid var(--line); border-radius: 12px; }
.menu-button span { display: block; width: 20px; height: 2px; margin: 4px auto; background: var(--ink); transition: transform .2s, opacity .2s; }
.menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.mobile-nav { max-height: calc(100vh - 80px); overflow: auto; border-top: 1px solid var(--line); background: #fff; }
.mobile-nav .shell { padding: 14px 0 28px; }
.mobile-nav a { display: flex; align-items: center; justify-content: space-between; padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 20px; font-weight: 750; }

.eyebrow { display: inline-block; margin-bottom: 14px; color: var(--green-2); font-size: 12px; line-height: 1.2; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
.hero { min-height: 720px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 70px; align-items: center; padding-block: 72px 88px; }
.hero-copy h1, .page-hero h1 { max-width: 820px; margin: 0; font-size: clamp(58px, 7.2vw, 104px); line-height: .91; letter-spacing: -.065em; font-weight: 850; }
.hero-copy h1 em, .page-hero h1 em { color: var(--green); font-family: Georgia, "Times New Roman", serif; font-weight: 400; }
.hero-lead { max-width: 650px; margin: 34px 0 0; color: #3f4944; font-size: 20px; line-height: 1.55; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 22px; padding: 12px 21px; border: 1px solid var(--ink); border-radius: 12px; font-size: 15px; font-weight: 750; transition: transform .2s, background .2s, color .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; border-color: var(--green); background: var(--green); }
.button-primary:hover { background: var(--green-2); }
.button-ghost { background: #fff; }
.button-light { color: var(--green); border-color: #fff; background: #fff; }
.hero-stats { display: flex; gap: 34px; margin: 48px 0 0; }
.hero-stats div { min-width: 110px; }
.hero-stats dt { font-size: 26px; font-weight: 850; line-height: 1.1; }
.hero-stats dd { margin: 5px 0 0; color: var(--muted); font-size: 12px; line-height: 1.3; }
.hero-art { position: relative; min-height: 540px; display: grid; place-items: center; border-radius: 36px; background-color: var(--soft); background-image: linear-gradient(rgba(18,63,50,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(18,63,50,.055) 1px, transparent 1px); background-size: 34px 34px; overflow: hidden; }
.hero-art::before { content: ""; position: absolute; width: 330px; height: 330px; border-radius: 50%; background: var(--mint); filter: blur(1px); }
.paper-visual { position: relative; width: 280px; height: 350px; perspective: 900px; }
.sheet { position: absolute; inset: 0; border: 1px solid rgba(18,63,50,.15); background: #fff; box-shadow: 0 34px 60px rgba(18, 63, 50, .13); }
.sheet-back { transform: translate(26px, 20px) rotate(8deg); background: #dcece4; }
.sheet-mid { transform: translate(-16px, 10px) rotate(-5deg); background: #f8faf9; }
.sheet-front { padding: 35px 30px; transform: rotate(1.8deg); }
.sheet-front::after { content: ""; position: absolute; right: -1px; top: -1px; width: 56px; height: 56px; background: linear-gradient(225deg, var(--soft) 49%, var(--line) 50%, #fff 52%); }
.sheet-front i { display: block; margin-bottom: 52px; color: var(--green); font-family: Georgia, serif; font-size: 58px; font-style: normal; line-height: 1; }
.sheet-front b { display: block; width: 100%; height: 7px; margin: 14px 0; border-radius: 10px; background: var(--mint); }
.sheet-front b:nth-of-type(2) { width: 72%; }
.sheet-front b:nth-of-type(3) { width: 86%; }
.sheet-front em { position: absolute; left: 30px; bottom: 28px; color: var(--muted); font-size: 12px; font-style: normal; letter-spacing: .1em; }
.paper-shadow { position: absolute; z-index: -1; left: 15%; right: 0; bottom: -35px; height: 55px; border-radius: 50%; background: rgba(18,63,50,.18); filter: blur(19px); }
.hero-note { position: absolute; display: grid; grid-template-columns: 12px auto; gap: 0 10px; min-width: 188px; padding: 14px 16px; border: 1px solid rgba(18,63,50,.14); border-radius: 14px; background: rgba(255,255,255,.92); box-shadow: 0 12px 34px rgba(18,63,50,.1); backdrop-filter: blur(10px); }
.hero-note span { grid-row: 1 / 3; width: 10px; height: 10px; margin-top: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px var(--mint); }
.hero-note b { font-size: 13px; line-height: 1.3; }
.hero-note small { color: var(--muted); font-size: 11px; }
.note-one { left: 28px; top: 84px; }
.note-two { right: 24px; bottom: 62px; }
.ticker { overflow: hidden; border-block: 1px solid var(--line); background: #fff; }
.ticker div { width: 100%; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px 28px; padding: 13px 22px; color: #33413a; font-size: 12px; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.ticker i { color: var(--green); font-style: normal; }

.section { padding-block: 104px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 34px; margin-bottom: 42px; }
.section-head h2 { max-width: 770px; margin: 0; font-size: clamp(38px, 5vw, 68px); line-height: .98; letter-spacing: -.05em; }
.section-head > p { max-width: 370px; margin: 0; color: var(--muted); font-size: 14px; }
.section-link { display: inline-flex; align-items: center; gap: 22px; padding-bottom: 5px; border-bottom: 1px solid var(--ink); font-size: 14px; font-weight: 750; white-space: nowrap; }
.topic-directory { padding-bottom: 28px; }
.topic-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.topic-grid > a { min-height: 245px; display: flex; flex-direction: column; padding: 26px; border: 1px solid var(--line); border-radius: 18px; background: var(--soft); transition: transform .2s, border-color .2s, background .2s; }
.topic-grid > a:hover { transform: translateY(-3px); border-color: var(--green); background: #fff; }
.topic-grid > a > span { color: var(--green-2); font-size: 11px; font-weight: 850; letter-spacing: .12em; }
.topic-grid h3 { margin: 24px 0 12px; font-size: 25px; line-height: 1.08; letter-spacing: -.03em; }
.topic-grid p { margin: 0 0 22px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.topic-grid b { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); color: var(--green); font-size: 12px; }
.topic-grid i { font-size: 16px; font-style: normal; }
.filter-row { display: flex; gap: 8px; margin-bottom: 30px; padding-bottom: 7px; overflow-x: auto; scrollbar-width: thin; scrollbar-color: #aabbb3 transparent; }
.filter-row::-webkit-scrollbar { height: 4px; }
.filter-row::-webkit-scrollbar-thumb { border-radius: 999px; background: #aabbb3; }
.filter-chip { flex: 0 0 auto; min-height: 40px; padding: 7px 15px; border: 1px solid var(--line); border-radius: 999px; color: #3d4742; background: #fff; font-size: 13px; font-weight: 650; cursor: pointer; }
.filter-chip:hover, .filter-chip.is-active { color: #fff; border-color: var(--green); background: var(--green); }
.article-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.article-card { min-width: 0; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; transition: transform .25s, box-shadow .25s; }
.article-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.article-card.is-hidden { display: none; }
.card-art { position: relative; height: 210px; display: grid; place-items: center; overflow: hidden; background-color: var(--soft); background-image: linear-gradient(rgba(18,63,50,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(18,63,50,.05) 1px, transparent 1px); background-size: 24px 24px; }
.card-art > b { position: absolute; top: 14px; right: 17px; color: rgba(18,63,50,.5); font-size: 12px; letter-spacing: .1em; }
.art-2 { background-color: #eef1e7; }.art-3 { background-color: #f6f1e8; }.art-4 { background-color: #e9f1ef; }
.mini-sheet { width: 112px; height: 142px; display: block; padding: 32px 18px; border: 1px solid rgba(18,63,50,.12); background: #fff; box-shadow: 12px 12px 0 var(--mint), 0 22px 34px rgba(18,63,50,.1); transform: rotate(-4deg); transition: transform .3s; }
.article-card:hover .mini-sheet { transform: rotate(1deg) translateY(-3px); }
.mini-sheet::before { content: "A4"; display: block; margin-bottom: 28px; color: var(--green); font-family: Georgia, serif; font-size: 25px; }
.mini-sheet i { display: block; height: 4px; margin: 7px 0; border-radius: 4px; background: var(--mint); }
.mini-sheet i:nth-child(2) { width: 70%; }
.card-content { flex: 1; display: flex; flex-direction: column; padding: 23px 23px 25px; }
.card-meta { display: flex; justify-content: space-between; gap: 10px; color: var(--green-2); font-size: 11px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.card-meta time { color: var(--muted); }
.article-card h3 { margin: 16px 0 11px; font-size: 23px; line-height: 1.18; letter-spacing: -.025em; }
.article-card h3 a:hover { color: var(--green-2); }
.article-card p { margin: 0 0 20px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.text-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); font-size: 13px; font-weight: 750; }
.workbench { color: #fff; background: var(--green); }
.section-head-light .eyebrow { color: var(--acid); }
.section-head-light > p { color: #c8d9d1; }
.calculator-card { padding: 32px; border: 1px solid var(--line); border-radius: 26px; color: var(--ink); background: #fff; box-shadow: 0 25px 70px rgba(4, 27, 20, .18); }
.calc-head { display: flex; align-items: start; justify-content: space-between; gap: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.calc-head .eyebrow { margin-bottom: 8px; }
.calc-head h2 { margin: 0; font-size: 30px; line-height: 1.1; letter-spacing: -.035em; }
.calc-head p { max-width: 640px; margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.calc-status { flex: 0 0 auto; padding: 6px 10px; border-radius: 999px; color: var(--green); background: var(--mint); font-size: 10px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.calc-grid { display: grid; grid-template-columns: 1.18fr .82fr; gap: 34px; padding-top: 28px; }
.calc-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; align-content: start; }
.calc-fields label { position: relative; display: flex; flex-direction: column; gap: 7px; color: #3a443f; font-size: 12px; font-weight: 750; }
.calc-fields input:not([type="range"]), .calc-fields select { width: 100%; min-height: 48px; padding: 9px 12px; border: 1px solid #cfd9d4; border-radius: 10px; color: var(--ink); background: #fff; outline: 0; }
.calc-fields input:focus, .calc-fields select:focus { border-color: var(--green-2); box-shadow: 0 0 0 3px var(--mint); }
.calc-fields input[type="range"] { width: 100%; accent-color: var(--green); }
.value-badge { position: absolute; right: 0; color: var(--green); }
.calc-result { min-height: 250px; display: flex; flex-direction: column; justify-content: center; padding: 26px; border-radius: 18px; color: #fff; background: var(--green); }
.calc-result > span { color: #b7d0c5; font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.calc-result > strong { display: block; margin-top: 11px; color: #fff; font-size: clamp(40px, 5vw, 64px); line-height: .95; letter-spacing: -.05em; }
.calc-result > strong i { font-style: normal; }
.choice-result > strong { font-size: clamp(28px, 3.2vw, 44px); }
.calc-result > b { margin-top: 9px; color: var(--acid); font-size: 12px; }
.calc-result > b i { font-style: normal; }
.result-details { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 24px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.2); }
.result-details p { margin: 0; color: #d9e7e1; font-size: 12px; }
.result-details p span { color: #fff; font-weight: 800; }
.result-stack { grid-template-columns: 1fr; }
.result-stack ul { margin: 4px 0 0; padding-left: 18px; color: #e3eee9; font-size: 12px; }
.calc-result small { margin-top: auto; padding-top: 18px; color: #a9c3b8; font-size: 10px; line-height: 1.45; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line); }
.steps article { padding: 34px 32px 38px 0; }
.steps article + article { padding-left: 32px; border-left: 1px solid var(--line); }
.steps span { color: var(--green-2); font-family: Georgia, serif; font-size: 18px; }
.steps h3 { margin: 34px 0 12px; font-size: 24px; line-height: 1.1; }
.steps p { margin: 0; color: var(--muted); font-size: 14px; }
.faq-list { border-top: 1px solid var(--ink); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { min-height: 75px; display: flex; align-items: center; justify-content: space-between; gap: 24px; cursor: pointer; list-style: none; font-weight: 750; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; font-size: 16px; line-height: 1.35; letter-spacing: 0; }
.faq-list summary i { position: relative; flex: 0 0 30px; width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; }
.faq-list summary i::before, .faq-list summary i::after { content: ""; position: absolute; left: 8px; right: 8px; top: 14px; height: 1px; background: var(--ink); }
.faq-list summary i::after { transform: rotate(90deg); transition: transform .2s; }
.faq-list details[open] summary i::after { transform: rotate(0); }
.faq-list details > p { max-width: 850px; margin: -5px 0 24px; color: var(--muted); font-size: 15px; }
.editorial-banner { display: grid; grid-template-columns: 1fr .8fr auto; gap: 44px; align-items: center; margin-bottom: 104px; padding: 42px; border-radius: 24px; color: #fff; background: var(--green); }
.editorial-banner .eyebrow { color: var(--acid); }
.editorial-banner h2 { margin: 0; font-size: 31px; line-height: 1.05; }
.editorial-banner p { margin: 0; color: #c8d9d1; font-size: 14px; }

.breadcrumbs { width: var(--shell); margin: 24px auto 0; display: flex; flex-wrap: wrap; gap: 8px; color: #5d6863; font-size: 11px; }
.breadcrumbs a:hover { color: var(--green); }
.page-hero { padding-block: 90px 72px; }
.page-hero h1 { font-size: clamp(54px, 7.2vw, 96px); }
.page-hero > p { max-width: 690px; margin: 32px 0 0; color: var(--muted); font-size: 19px; }
.page-hero-compact { padding-bottom: 45px; }
.page-hero-compact h1 { font-size: clamp(54px, 7vw, 88px); }
.catalog-tools { display: flex; align-items: end; justify-content: space-between; gap: 24px; padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: var(--soft); }
.catalog-category-directory { margin-bottom: 24px; }
.catalog-category-directory nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.catalog-category-directory a { display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 56px; padding: 12px 15px; border: 1px solid var(--line); border-radius: 12px; background: #fff; transition: border-color .2s, background .2s; }
.catalog-category-directory a:hover { border-color: var(--green); background: var(--soft); }
.catalog-category-directory span { font-size: 13px; font-weight: 750; }
.catalog-category-directory b { min-width: 30px; padding: 3px 7px; border-radius: 999px; color: var(--green); background: var(--mint); font-size: 11px; text-align: center; }
.catalog-tools .filter-row { min-width: 0; margin: 0; }
.filter-chip small { margin-left: 4px; color: inherit; font-size: 10px; opacity: .92; }
.catalog-search, .glossary-tools label { position: relative; width: min(460px, 100%); display: flex; flex-direction: column; gap: 7px; color: var(--muted); font-size: 11px; font-weight: 750; }
.catalog-search input, .glossary-tools input { width: 100%; min-height: 48px; padding: 9px 45px 9px 13px; border: 1px solid #cdd7d2; border-radius: 10px; background: #fff; outline: 0; }
.catalog-search input:focus, .glossary-tools input:focus { border-color: var(--green); box-shadow: 0 0 0 3px var(--mint); }
.catalog-search b, .glossary-tools label b { position: absolute; right: 15px; bottom: 6px; font-size: 25px; font-weight: 400; transform: rotate(-20deg); }
.article-grid-catalog { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.catalog-count { margin: -15px 0 22px; color: var(--muted); font-size: 12px; }
.catalog-more-wrap { display: flex; justify-content: center; margin-top: 34px; }
.catalog-more span { color: var(--muted); font-size: 11px; }
.catalog-more[hidden] { display: none; }
.empty-state { padding: 50px; border: 1px dashed #bdcac4; border-radius: 18px; color: var(--muted); text-align: center; }
.category-hero { position: relative; padding-right: min(25vw, 310px); }
.category-hero h1 { max-width: 920px; font-size: clamp(48px, 6.7vw, 88px); }
.category-count { position: absolute; right: 0; bottom: 78px; width: 210px; padding: 23px; border-radius: 18px; color: #fff; background: var(--green); }
.category-count b { display: block; color: var(--acid); font-size: 46px; line-height: 1; }
.category-count span { display: block; margin-top: 8px; color: #c8d9d1; font-size: 11px; }
.category-articles { padding-top: 30px; }
.category-tool { color: #fff; background: var(--green); }
.category-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.category-links a { position: relative; min-height: 170px; display: flex; flex-direction: column; padding: 25px; border: 1px solid var(--line); border-radius: 17px; background: #fff; transition: border .2s, transform .2s; }
.category-links a:hover { transform: translateY(-3px); border-color: var(--green); }
.category-links span { padding-right: 24px; font-size: 20px; font-weight: 800; line-height: 1.15; }
.category-links small { margin-top: 12px; color: var(--muted); font-size: 11px; line-height: 1.45; }
.category-links b { position: absolute; right: 20px; top: 20px; color: var(--green); }

.article-header { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr); gap: 60px; align-items: center; padding-block: 60px 70px; }
.article-kicker { display: flex; flex-wrap: wrap; gap: 12px 22px; margin-bottom: 20px; color: var(--muted); font-size: 11px; font-weight: 750; text-transform: uppercase; letter-spacing: .09em; }
.article-kicker a { color: var(--green); }
.article-kicker a:hover { text-decoration: underline; text-underline-offset: 3px; }
.article-heading h1 { margin: 0; font-size: clamp(48px, 6vw, 82px); line-height: .96; letter-spacing: -.055em; }
.article-intro { max-width: 850px; margin: 28px 0 0; color: #45504a; font-size: 20px; line-height: 1.55; }
.article-byline { display: flex; align-items: center; gap: 12px; margin-top: 32px; }
.author-mark { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--green); font-size: 11px; font-weight: 850; }
.article-byline div { display: flex; flex-direction: column; line-height: 1.35; }
.article-byline b { font-size: 12px; }
.article-byline small { color: var(--muted); font-size: 10px; }
.copy-link { margin-left: 14px; padding: 8px 11px; border: 1px solid var(--line); border-radius: 9px; background: #fff; font-size: 11px; font-weight: 700; cursor: pointer; }
.copy-link.is-copied { color: #fff; border-color: var(--green); background: var(--green); }
.article-hero-art { min-height: 440px; position: relative; display: grid; place-items: center; border-radius: 28px; background-color: var(--soft); background-image: radial-gradient(rgba(18,63,50,.13) 1px, transparent 1px); background-size: 17px 17px; overflow: hidden; }
.article-hero-art .paper-visual { width: 190px; height: 245px; transform: rotate(5deg); }
.article-hero-art .sheet-front { padding: 24px 21px; }
.article-hero-art .sheet-front i { margin-bottom: 30px; font-size: 40px; }
.article-hero-art .sheet-front em { left: 21px; bottom: 20px; }
.article-hero-art > span { position: absolute; right: 17px; bottom: 18px; max-width: 220px; padding: 8px 11px; border-radius: 8px; color: #fff; background: var(--green); font-size: 10px; font-weight: 750; }
.reading-progress { position: sticky; z-index: 90; top: 79px; height: 2px; background: transparent; }
.reading-progress span { display: block; width: 0; height: 100%; background: var(--acid); }
.article-layout { display: grid; grid-template-columns: 245px minmax(0, 780px); justify-content: space-between; gap: 72px; padding-block: 78px 100px; }
.toc { position: sticky; top: 120px; align-self: start; }
.toc .eyebrow { margin-bottom: 16px; }
.toc ol { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.toc li { border-bottom: 1px solid var(--line); }
.toc li a { display: grid; grid-template-columns: 25px 1fr; gap: 8px; padding: 10px 0; color: #59645f; font-size: 11px; line-height: 1.35; }
.toc li a:hover, .toc li a.is-active { color: var(--green); }
.toc li span { font-family: Georgia, serif; }
.toc-tool { display: flex; justify-content: space-between; gap: 10px; margin-top: 18px; padding: 13px 14px; border-radius: 10px; color: #fff; background: var(--green); font-size: 11px; font-weight: 750; }
.article-content { min-width: 0; font-family: Georgia, "Times New Roman", serif; font-size: 18px; line-height: 1.78; }
.article-content > section { margin: 0 0 70px; }
.article-content h2 { scroll-margin-top: 110px; margin: 0 0 26px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; font-size: clamp(33px, 4vw, 47px); line-height: 1.06; letter-spacing: -.045em; }
.article-content h3 { margin: 38px 0 14px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; font-size: 23px; line-height: 1.2; letter-spacing: -.02em; }
.article-content p { margin: 0 0 20px; }
.article-content a { color: var(--green-2); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.article-content ul, .article-content ol { margin: 24px 0 28px; padding-left: 27px; }
.article-content li { margin: 9px 0; padding-left: 5px; }
.article-content li::marker { color: var(--green-2); font-weight: 750; }
.info-box { margin: 34px 0; padding: 25px 27px; border-left: 4px solid var(--green); border-radius: 0 14px 14px 0; background: var(--soft); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; }
.info-box b, .info-box strong { display: block; margin-bottom: 8px; color: var(--green); font-size: 13px; letter-spacing: .04em; text-transform: uppercase; }
.info-box p { margin: 0; color: #44504a; font-size: 14px; line-height: 1.6; }
.table-wrap { max-width: 100%; margin: 32px 0; overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; }
.article-content table { width: 100%; min-width: 620px; border-collapse: collapse; background: #fff; font-size: 13px; line-height: 1.5; }
.article-content th, .article-content td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.article-content th { color: #fff; background: var(--green); font-size: 11px; letter-spacing: .04em; }
.article-content tr:last-child td { border-bottom: 0; }
.article-content tbody tr:nth-child(even) { background: var(--soft); }
.calculator-slot { display: none; }
.tool-teaser { display: flex; align-items: center; gap: 18px; margin: 34px 0; padding: 20px 22px; border: 1px solid #b9d0c5; border-radius: 14px; background: #eef6f2; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; }
.tool-teaser span { flex: 0 0 auto; color: var(--green); font-size: 10px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.tool-teaser b { font-size: 13px; line-height: 1.35; }
.tool-teaser a { margin-left: auto; font-size: 11px; font-weight: 750; white-space: nowrap; }
.article-content .calculator-card { margin: 88px 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; }
.article-content .calc-head h2 { margin: 0; font-size: 30px; }
.article-content .calc-head p { margin: 10px 0 0; }
.article-content .calc-result p { margin: 0; }
.article-content .faq { margin: 95px 0 20px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; }
.article-content .faq h2 { margin-bottom: 28px; }
.related { border-top: 1px solid var(--line); background: var(--soft); }

.tool-index { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 74px; }
.tool-index a { display: grid; grid-template-columns: 36px 1fr 20px; gap: 14px; align-items: center; min-height: 100px; padding: 19px; border: 1px solid var(--line); border-radius: 15px; transition: background .2s, border .2s; }
.tool-index a:hover { border-color: var(--green); background: var(--soft); }
.tool-index > a > span { color: var(--green); font-family: Georgia, serif; }
.tool-index div { display: flex; flex-direction: column; }
.tool-index b { font-size: 15px; }
.tool-index small { margin-top: 4px; color: var(--muted); font-size: 11px; }
.tool-index i { color: var(--green); font-style: normal; }
.calculator-stack { display: grid; gap: 54px; }
.calculator-stack > div { scroll-margin-top: 110px; }
.calculator-stack .calculator-card { box-shadow: var(--shadow); }
.info-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; margin-block: 100px; padding: 34px 38px; border: 1px solid var(--line); border-radius: 20px; background: var(--soft); }
.info-strip span { display: block; margin-bottom: 8px; color: var(--green); font-size: 10px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.info-strip h2 { margin: 0; font-size: 28px; line-height: 1.1; }
.info-strip > p { margin: 0; color: var(--muted); font-size: 14px; }
.glossary-tools { padding: 26px; border-radius: 18px; background: var(--soft); }
.glossary-list { margin-block: 44px 100px; border-top: 1px solid var(--ink); }
.glossary-list article { display: grid; grid-template-columns: 52px minmax(170px, .4fr) 1fr; gap: 22px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.glossary-list article.is-hidden { display: none; }
.glossary-list article > span { color: var(--green); font-family: Georgia, serif; }
.glossary-list h2 { margin: 0; font-size: 25px; line-height: 1.1; }
.glossary-list p { margin: 0; color: var(--muted); font-size: 14px; }

.manifesto { display: grid; grid-template-columns: .35fr 1fr; gap: 60px; padding-block: 70px; border-block: 1px solid var(--line); }
.manifesto-number { color: var(--green); font-family: Georgia, serif; font-size: 58px; }
.manifesto h2 { max-width: 780px; margin: 0 0 28px; font-size: clamp(38px, 5vw, 64px); line-height: 1; letter-spacing: -.05em; }
.manifesto p { max-width: 760px; color: var(--muted); }
.principles { display: grid; grid-template-columns: repeat(2, 1fr); margin-block: 100px; border-top: 1px solid var(--ink); }
.principles article { padding: 36px 38px 40px 0; border-bottom: 1px solid var(--line); }
.principles article:nth-child(even) { padding-left: 38px; border-left: 1px solid var(--line); }
.principles span { color: var(--green); font-family: Georgia, serif; }
.principles h2 { margin: 26px 0 12px; font-size: 27px; line-height: 1.1; }
.principles p { margin: 0; color: var(--muted); font-size: 14px; }
.editorial-process { display: grid; grid-template-columns: .8fr 1fr; gap: 70px; padding: 52px; border-radius: 24px; color: #fff; background: var(--green); }
.editorial-process .eyebrow { color: var(--acid); }
.editorial-process h2 { margin: 0; font-size: 45px; line-height: 1; }
.editorial-process ol { margin: 0; padding-left: 26px; }
.editorial-process li { padding: 0 0 22px 8px; }
.editorial-process li::marker { color: var(--acid); font-family: Georgia, serif; }
.editorial-process b { font-size: 14px; }
.editorial-process p { margin: 4px 0 0; color: #c8d9d1; font-size: 12px; }
.legal-content { max-width: 820px; padding-bottom: 100px; }
.legal-content section { margin: 0 0 50px; }
.legal-content h2 { margin: 0 0 18px; font-size: 29px; line-height: 1.15; }
.legal-content p { color: #45504a; }
.not-found { min-height: calc(100vh - 80px); display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding-block: 70px; }
.not-found h1 { margin: 0; font-size: clamp(70px, 10vw, 130px); line-height: .86; letter-spacing: -.07em; }
.not-found p { max-width: 580px; color: var(--muted); font-size: 18px; }

.site-footer { color: #fff; background: #0b2f25; }
.footer-top { display: grid; grid-template-columns: 1.35fr .65fr .65fr; gap: 70px; padding-block: 66px; }
.brand-light .brand-mark { background: #fff; box-shadow: 7px 6px 0 rgba(255,255,255,.22); }
.brand-light .brand-mark::before, .brand-light .brand-mark::after, .brand-light .brand-mark span { background: var(--green); }
.brand-light .brand-name span { color: var(--acid); }
.footer-brand p { max-width: 360px; margin: 25px 0 0; color: #a9c3b8; font-size: 13px; }
.footer-nav { display: flex; flex-direction: column; gap: 9px; }
.footer-nav h2 { margin: 0 0 13px; color: #7fa596; font-size: 10px; letter-spacing: .13em; text-transform: uppercase; }
.footer-nav a { color: #d8e5df; font-size: 13px; }
.footer-nav a:hover { color: var(--acid); }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; padding-block: 21px; border-top: 1px solid rgba(255,255,255,.12); }
.footer-bottom p { max-width: 800px; margin: 0; color: #7fa596; font-size: 10px; }
.to-top { font-size: 11px; font-weight: 750; white-space: nowrap; }
.metric-notice { position: fixed; z-index: 150; left: 22px; bottom: 22px; width: min(460px, calc(100% - 44px)); display: flex; align-items: center; gap: 18px; padding: 12px 13px 12px 16px; border: 1px solid #325c4e; border-radius: 13px; color: #fff; background: rgba(11,47,37,.96); box-shadow: 0 18px 50px rgba(4, 27, 20, .28); backdrop-filter: blur(12px); }
.metric-notice[hidden] { display: none; }
.metric-notice p { margin: 0; color: #d8e5df; font-size: 10px; line-height: 1.45; }
.metric-notice a { text-decoration: underline; }
.metric-notice button { flex: 0 0 auto; padding: 6px 10px; border: 0; border-radius: 7px; color: var(--green); background: #fff; font-size: 10px; font-weight: 750; cursor: pointer; }

.search-dialog { width: 100%; max-width: none; height: 100%; max-height: none; margin: 0; padding: 0; border: 0; background: rgba(5,27,20,.5); }
.search-dialog::backdrop { background: transparent; }
.search-panel { width: min(860px, calc(100% - 32px)); max-height: calc(100vh - 32px); margin: 16px auto; padding: 32px; border-radius: 24px; background: #fff; box-shadow: 0 30px 100px rgba(5,27,20,.3); overflow: auto; }
.search-head { display: flex; justify-content: space-between; gap: 24px; }
.search-head h2 { margin: 0; font-size: 38px; letter-spacing: -.04em; }
.dialog-close { width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 50%; font-size: 27px; }
.search-field { position: relative; display: block; margin: 28px 0; }
.search-field input { width: 100%; height: 60px; padding: 12px 70px 12px 16px; border: 1px solid var(--green); border-radius: 12px; outline: 0; font-size: 16px; }
.search-field input:focus-visible { border-color: #0b5f43; outline: 3px solid #0b5f43; outline-offset: 2px; }
.search-field kbd { position: absolute; right: 12px; top: 16px; padding: 4px 7px; border: 1px solid var(--line); border-radius: 5px; color: var(--muted); background: var(--soft); font-size: 10px; }
.search-suggestions { display: grid; gap: 7px; }
.search-suggestions > p { color: var(--muted); font-size: 13px; }
.search-suggestions a { display: grid; grid-template-columns: 110px 1fr 24px; gap: 15px; align-items: center; padding: 13px 0; border-bottom: 1px solid var(--line); }
.search-suggestions a > span { color: var(--green); font-size: 10px; font-weight: 800; text-transform: uppercase; }
.search-suggestions b { font-size: 14px; }
.search-suggestions i { font-style: normal; }
.search-suggestions a.search-all { margin-top: 5px; padding: 14px; border: 1px solid var(--green); border-radius: 11px; color: var(--green); background: var(--soft); }

@media (max-width: 1040px) {
  :root { --shell: min(100% - 40px, 920px); }
  .desktop-nav { gap: 18px; }
  .hero { min-height: auto; grid-template-columns: 1fr 1fr; gap: 36px; }
  .hero-copy h1 { font-size: clamp(58px, 8vw, 78px); }
  .hero-art { min-height: 500px; }
  .paper-visual { width: 235px; height: 300px; }
  .article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .editorial-banner { grid-template-columns: 1fr 1fr; }
  .editorial-banner .button { grid-column: 1 / -1; justify-self: start; }
  .article-header { grid-template-columns: 1fr .55fr; gap: 30px; }
  .article-layout { grid-template-columns: 200px minmax(0, 1fr); gap: 45px; }
  .calc-grid { gap: 22px; }
  .footer-top { gap: 38px; }
}

@media (max-width: 780px) {
  :root { --shell: calc(100% - 32px); --radius: 17px; }
  body { font-size: 16px; }
  html { scroll-padding-top: 78px; }
  .header-inner { height: 68px; }
  .desktop-nav { display: none; }
  .icon-button b { display: none; }
  .menu-button { display: block; }
  .mobile-nav { max-height: calc(100vh - 68px); }
  .hero { grid-template-columns: 1fr; gap: 45px; padding-block: 58px; }
  .hero-copy h1, .page-hero h1 { font-size: clamp(49px, 15vw, 76px); }
  .hero-lead { margin-top: 26px; font-size: 17px; }
  .hero-art { min-height: 430px; }
  .paper-visual { width: 210px; height: 270px; }
  .hero-note { min-width: 160px; }
  .note-one { left: 14px; top: 54px; }
  .note-two { right: 13px; bottom: 38px; }
  .hero-stats { gap: 18px; }
  .hero-stats div { min-width: 0; }
  .section { padding-block: 74px; }
  .section-head { align-items: start; }
  .section-head h2 { font-size: clamp(38px, 11vw, 58px); }
  .section-head > p { display: none; }
  .article-grid, .article-grid-catalog { grid-template-columns: 1fr; }
  .topic-grid { grid-template-columns: 1fr; }
  .topic-grid > a { min-height: 0; }
  .article-card { display: grid; grid-template-columns: 150px 1fr; }
  .card-art { height: 100%; min-height: 240px; }
  .mini-sheet { width: 84px; height: 111px; padding: 21px 13px; box-shadow: 8px 8px 0 var(--mint), 0 18px 28px rgba(18,63,50,.1); }
  .mini-sheet::before { margin-bottom: 15px; font-size: 19px; }
  .article-card h3 { font-size: 20px; }
  .article-card p { font-size: 13px; }
  .calc-grid { grid-template-columns: 1fr; }
  .calc-fields { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .steps article, .steps article + article { padding: 28px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .steps article:last-child { border-bottom: 0; }
  .steps h3 { margin-top: 18px; }
  .editorial-banner { grid-template-columns: 1fr; gap: 25px; margin-bottom: 74px; padding: 30px; }
  .editorial-banner .button { grid-column: auto; }
  .page-hero { padding-block: 64px 50px; }
  .page-hero > p { font-size: 16px; }
  .category-hero { padding-right: 0; }
  .category-count { position: static; width: 100%; display: flex; align-items: center; gap: 12px; margin-top: 30px; }
  .category-count b { font-size: 32px; }
  .category-count span { margin: 0; }
  .catalog-tools { align-items: stretch; flex-direction: column; }
  .catalog-category-directory nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-search { width: 100%; }
  .article-header { grid-template-columns: 1fr; padding-block: 45px 55px; }
  .article-hero-art { min-height: 360px; }
  .article-layout { grid-template-columns: 1fr; padding-block: 55px 70px; }
  .toc { position: static; padding: 20px; border-radius: 14px; background: var(--soft); }
  .article-content { font-size: 17px; }
  .reading-progress { top: 67px; }
  .tool-index { grid-template-columns: 1fr; }
  .category-links { grid-template-columns: 1fr; }
  .calculator-stack { gap: 38px; }
  .info-strip { grid-template-columns: 1fr; gap: 22px; margin-block: 74px; }
  .manifesto { grid-template-columns: 80px 1fr; gap: 24px; }
  .principles { grid-template-columns: 1fr; }
  .principles article, .principles article:nth-child(even) { padding: 30px 0; border-left: 0; }
  .editorial-process { grid-template-columns: 1fr; padding: 36px; }
  .not-found { grid-template-columns: 1fr; }
  .not-found .paper-visual { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  :root { --shell: calc(100% - 24px); }
  .catalog-category-directory nav { grid-template-columns: 1fr; }
  .brand-name { font-size: 16px; }
  .brand-mark { width: 25px; height: 31px; }
  .hero { padding-top: 42px; }
  .hero-copy h1, .page-hero h1, .article-heading h1 { font-size: clamp(43px, 15vw, 65px); }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .hero-stats { justify-content: space-between; margin-top: 36px; }
  .hero-stats dt { font-size: 21px; }
  .hero-stats dd { font-size: 10px; }
  .hero-art { min-height: 370px; border-radius: 22px; }
  .paper-visual { width: 170px; height: 220px; }
  .sheet-front { padding: 25px 20px; }
  .sheet-front i { margin-bottom: 29px; font-size: 42px; }
  .sheet-front em { left: 20px; bottom: 18px; }
  .hero-note { min-width: 142px; padding: 10px 11px; }
  .hero-note b { font-size: 11px; }
  .hero-note small { font-size: 9px; }
  .note-one { top: 33px; }
  .article-card { grid-template-columns: 1fr; }
  .card-art { min-height: 185px; }
  .card-content { padding: 20px; }
  .section-link { display: none; }
  .calculator-card { padding: 20px; border-radius: 18px; }
  .calc-head { flex-direction: column; gap: 10px; }
  .calc-head h2, .article-content .calc-head h2 { font-size: 26px; }
  .calc-status { align-self: start; }
  .calc-fields { grid-template-columns: 1fr; }
  .calc-result { min-height: 245px; padding: 21px; }
  .article-heading h1 { line-height: 1; }
  .category-hero { padding-right: 0; }
  .category-count { position: static; width: 100%; display: flex; align-items: center; gap: 12px; margin-top: 30px; }
  .category-count b { font-size: 32px; }
  .category-count span { margin: 0; }
  .article-intro { font-size: 17px; }
  .article-byline { align-items: flex-start; flex-wrap: wrap; }
  .copy-link { margin-left: 54px; }
  .article-hero-art { min-height: 320px; }
  .article-content h2 { font-size: 34px; }
  .article-content .calculator-card { margin: 65px 0; }
  .tool-teaser { align-items: flex-start; flex-direction: column; gap: 8px; }
  .tool-teaser a { margin-left: 0; }
  .article-content .faq { margin-top: 70px; }
  .table-wrap { margin-inline: -4px; }
  .glossary-list article { grid-template-columns: 38px 1fr; gap: 14px; }
  .glossary-list p { grid-column: 2; }
  .manifesto { grid-template-columns: 1fr; }
  .manifesto-number { font-size: 36px; }
  .editorial-process { padding: 28px 22px; }
  .editorial-process h2 { font-size: 38px; }
  .info-strip { padding: 28px 24px; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { align-items: flex-start; }
  .metric-notice { left: 12px; bottom: 12px; width: calc(100% - 24px); }
  .search-panel { width: calc(100% - 16px); margin: 8px auto; padding: 22px 18px; border-radius: 17px; }
  .search-head h2 { font-size: 30px; }
  .search-suggestions a { grid-template-columns: 1fr 24px; }
  .search-suggestions a > span { grid-column: 1 / -1; }
}

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

@media print {
  .site-header, .site-footer, .metric-notice, .reading-progress, .toc, .related, .calculator-card, .copy-link, .article-hero-art { display: none!important; }
  body { color: #000; font-size: 12pt; }
  .article-header, .article-layout { display: block; width: 100%; padding: 0; }
  .article-content { max-width: none; }
  a { text-decoration: none!important; }
}