:root {
  --bg: #fbfcfb;
  --surface: #ffffff;
  --surface-2: #f1f5f2;
  --text: #17201b;
  --muted: #56635b;
  --border: #dbe3dd;
  --accent: #0b5d3b;
  --accent-2: #0e7a4e;
  --accent-soft: #e3f2ea;
  --warn-soft: #fdf1e3;
  --bad: #b3261e;
  --good: #11713f;
  --code-bg: #0f1a14;
  --code-text: #e4efe8;
  --radius: 12px;
  --wrap: 1120px;
  --prose: 760px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1310;
    --surface: #131c17;
    --surface-2: #18241e;
    --text: #e6eee9;
    --muted: #a3b2a9;
    --border: #26352d;
    --accent: #3fbf84;
    --accent-2: #57d398;
    --accent-soft: #163428;
    --warn-soft: #33261a;
    --bad: #ff8a80;
    --good: #6fdca5;
    --code-bg: #0a100d;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
img, svg { max-width: 100%; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { color: var(--accent-2); }
h1, h2, h3 { line-height: 1.25; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.9rem); margin: 0 0 .5em; }
h2 { font-size: clamp(1.35rem, 3vw, 1.75rem); margin: 2em 0 .6em; }
h3 { font-size: 1.12rem; margin: 1.6em 0 .4em; }
code { font: .88em/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--surface-2); padding: .1em .35em; border-radius: 5px; }
pre { background: var(--code-bg); color: var(--code-text); padding: 1rem 1.1rem; border-radius: var(--radius); overflow-x: auto; font-size: .88rem; }
pre code { background: none; padding: 0; color: inherit; }
hr { border: 0; border-top: 1px solid var(--border); margin: 2.5rem 0; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip { position: absolute; left: -999px; } .skip:focus { left: 1rem; top: 1rem; z-index: 10; background: var(--surface); padding: .5rem 1rem; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
.prose { max-width: var(--prose); }
article.wrap.prose, .wrap.prose { margin-left: auto; margin-right: auto; }

/* header */
.site-header { border-bottom: 1px solid var(--border); background: var(--surface); position: sticky; top: 0; z-index: 5; }
.header-row { display: flex; align-items: center; justify-content: space-between; min-height: 60px; gap: 1rem; }
.logo { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.nav ul { list-style: none; margin: 0; padding: 0; }
.nav li a { color: var(--text); text-decoration: none; font-weight: 500; }
.nav li a[aria-current="page"] { color: var(--accent); }
.nav li a.btn { color: #fff; }
@media (prefers-color-scheme: dark) { .nav li a.btn { color: #08130d; } }
.nav-desktop { display: none; }
.nav-menu summary { list-style: none; cursor: pointer; padding: .4rem .8rem; border: 1px solid var(--border); border-radius: 8px; font-weight: 600; }
.nav-menu summary::-webkit-details-marker { display: none; }
.nav-menu[open] ul { position: absolute; left: 0; right: 0; top: 60px; background: var(--surface); border-bottom: 1px solid var(--border); padding: .5rem 16px 1rem; }
.nav-menu li a { display: block; padding: .45rem 0; }
.nav-menu li a.btn { display: inline-block; margin-top: .4rem; padding: .35rem .8rem; }
@media (min-width: 1000px) {
  .nav-desktop { display: flex; gap: 1.1rem; align-items: center; font-size: .95rem; }
  .nav-menu { display: none; }
}

.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: .3rem; padding: .9rem 0 0; margin: 0; font-size: .88rem; color: var(--muted); }
.crumbs li + li::before { content: "›"; margin-right: .3rem; }
.crumbs a { color: var(--muted); }

/* hero */
.hero { padding: 3.2rem 0 2.6rem; background: linear-gradient(180deg, var(--accent-soft), transparent); }
.hero-small { padding: 2.2rem 0 1.6rem; }
.hero .wrap { max-width: var(--prose); }
.crumbs.wrap { max-width: var(--prose); }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; font-weight: 700; color: var(--accent); margin: 0 0 .6rem; }
.lead { font-size: 1.18rem; color: var(--muted); max-width: 720px; }
.hint { color: var(--muted); font-size: .9rem; }

/* buttons */
.btn { display: inline-block; background: var(--accent); color: #fff; padding: .72rem 1.25rem; border-radius: 10px; font-weight: 650; text-decoration: none; border: 2px solid var(--accent); cursor: pointer; font-size: 1rem; }
.btn:hover { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
@media (prefers-color-scheme: dark) { .btn, .btn:hover { color: #08130d; } }
.btn-ghost { background: transparent; color: var(--accent); }
.btn-ghost:hover { background: var(--accent-soft); color: var(--accent); }
.btn-small { padding: .35rem .8rem; font-size: .9rem; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.4rem; }

/* blocks */
.answer { background: var(--accent-soft); border-left: 4px solid var(--accent); border-radius: var(--radius); padding: .9rem 1.1rem; margin: 1.6rem 0; }
.answer p { margin: 0; }
.takeaways { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: .4rem 1.2rem .6rem; margin: 1.4rem 0; }
.takeaways h2 { font-size: 1.05rem; margin: .8rem 0 .3rem; }
.toc { background: var(--surface-2); border-radius: var(--radius); padding: .8rem 1.2rem; margin: 1.4rem 0; font-size: .95rem; }
.toc p { margin: 0 0 .3rem; font-weight: 700; }
.toc ol { margin: 0; padding-left: 1.2rem; }
.article-head { padding-top: 1.6rem; }
.article-meta { color: var(--muted); font-size: .92rem; margin-top: -.3rem; }

.grid-2, .grid-4 { display: grid; gap: 1rem; }
@media (min-width: 720px) { .grid-2 { grid-template-columns: 1fr 1fr; } .grid-4 { grid-template-columns: 1fr 1fr; } }
.feature, .fit { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.1rem; }
.feature h3, .fit h3 { margin-top: .2rem; }
.feature p { margin: 0; color: var(--muted); }
.fit-yes { border-top: 4px solid var(--good); } .fit-no { border-top: 4px solid var(--bad); }

ul.checks, ul.crosses { list-style: none; padding-left: 0; }
ul.checks li, ul.crosses li { position: relative; padding-left: 1.6rem; margin: .4rem 0; }
ul.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--good); font-weight: 700; }
ul.crosses li::before { content: "✕"; position: absolute; left: 0; color: var(--bad); font-weight: 700; }
ol.steps { padding-left: 1.3rem; } ol.steps li { margin: .55rem 0; }

.cards { display: grid; gap: 1rem; margin: 1rem 0; }
@media (min-width: 640px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .cards-list { grid-template-columns: repeat(3, 1fr); } }
.card { display: flex; flex-direction: column; gap: .3rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.1rem; text-decoration: none; color: var(--text); transition: border-color .15s; }
.card:hover { border-color: var(--accent); color: var(--text); }
.card-meta { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); font-weight: 700; }
.card-title { font-weight: 700; font-size: 1.05rem; }
.card-text { color: var(--muted); font-size: .95rem; }

/* tables */
.table-wrap { overflow-x: auto; margin: 1.2rem 0; border: 1px solid var(--border); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: .94rem; background: var(--surface); }
th, td { text-align: left; padding: .6rem .8rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--surface-2); font-weight: 650; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }

/* plans */
.plans { display: grid; gap: 1rem; margin: 2rem 0; }
@media (min-width: 720px) { .plans { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .plans { grid-template-columns: repeat(4, 1fr); } }
.prose .plans { grid-template-columns: 1fr; }
@media (min-width: 720px) { .prose .plans { grid-template-columns: repeat(2, 1fr); } }
.plan { position: relative; display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.2rem; }
.plan h3 { margin: .2rem 0; }
.plan .price strong { font-size: 2rem; } .plan .price span { color: var(--muted); }
.plan .btn { margin-top: auto; text-align: center; }
.plan-highlight { border: 2px solid var(--accent); }
.badge { position: absolute; top: -.75rem; left: 1rem; background: var(--accent); color: #fff; font-size: .75rem; font-weight: 700; padding: .15rem .6rem; border-radius: 99px; }
@media (prefers-color-scheme: dark) { .badge { color: #08130d; } }

/* faq */
.faq details { border-bottom: 1px solid var(--border); padding: .2rem 0; }
.faq summary { cursor: pointer; list-style: none; position: relative; padding-right: 2rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: .2rem; top: .9rem; font-size: 1.3rem; color: var(--accent); }
.faq details[open] summary::after { content: "−"; }
.faq summary h3 { display: inline; font-size: 1.05rem; margin: 0; line-height: 3; }
.faq details p { margin: 0 0 1rem; color: var(--muted); }

.cta { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.4rem 1.4rem .6rem; margin: 3rem 0; }
.cta h2 { margin-top: 0; }
.related { margin-top: 2rem; }
.big-link { font-size: 1.5rem; font-weight: 700; }

/* tools */
.checker-form { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1.4rem; }
.checker-form input { flex: 1 1 240px; min-width: 0; font-size: 1.05rem; padding: .7rem .9rem; border: 2px solid var(--border); border-radius: 10px; background: var(--surface); color: var(--text); }
.checker-form input:focus { outline: none; border-color: var(--accent); }
.result { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); padding: .9rem 1.1rem; margin: .8rem 0; }
.result h3 { margin: 0 0 .3rem; display: flex; justify-content: space-between; gap: 1rem; }
.result p { margin: .3rem 0; }
.result code { word-break: break-all; }
.pill { font-size: .78rem; font-weight: 700; padding: .1rem .55rem; border-radius: 99px; white-space: nowrap; }
.pill-good { background: var(--accent-soft); color: var(--good); }
.pill-warn { background: var(--warn-soft); color: #9a5b00; }
.pill-bad { background: #fde7e5; color: var(--bad); }
@media (prefers-color-scheme: dark) { .pill-warn { color: #f5b860; } .pill-bad { background: #3a1916; } }
.score { font-size: 2.4rem; font-weight: 800; margin: .2rem 0; }

/* footer */
.site-footer { border-top: 1px solid var(--border); background: var(--surface); margin-top: 4rem; padding: 2.4rem 0 1.4rem; font-size: .94rem; }
.footer-grid { display: grid; gap: 1.6rem; }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 1.6fr repeat(4, 1fr); } }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin: .35rem 0; }
.footer-grid a { color: var(--muted); text-decoration: none; } .footer-grid a:hover { color: var(--accent); }
.footer-title { font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; margin: 0 0 .5rem; }
.footer-brand p { color: var(--muted); }
.footer-legal { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; color: var(--muted); font-size: .82rem; margin-top: 1.6rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.footer-legal a { color: var(--muted); }