/* Carvico guides — shared article styles.
   Matches the dark racing identity of the marketing pages, tuned for long reads. */
:root {
  --paper: #0C0D10;
  --surface: #16181D;
  --surface-2: #1D2027;
  --ink: #F4F5F0;
  --ink-soft: #9A9CA3;
  --green: #6FCF3C;
  --green-deep: #57AE29;
  --crimson: #E4363A;
  --racing-blue: #2451D6;
  --amber: #E8A33D;
  --border: rgba(244, 245, 240, 0.09);
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---- chrome ---- */
header.site {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
  background: rgba(12, 13, 16, 0.85);
  backdrop-filter: blur(10px);
  z-index: 10;
}
header.site .wrap-wide { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 1.2rem; letter-spacing: -0.02em; }
.logo img { width: 30px; height: 30px; border-radius: 8px; display: block; }
nav a { color: var(--ink-soft); text-decoration: none; margin-left: 26px; font-size: 0.95rem; transition: color 0.15s ease; }
nav a:hover, nav a[aria-current="page"] { color: var(--green); }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 4px; }

footer.site { border-top: 1px solid var(--border); padding: 40px 0; font-size: 0.9rem; color: var(--ink-soft); margin-top: 40px; }
footer.site .wrap-wide { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
footer.site a { color: var(--ink-soft); text-decoration: none; margin-right: 20px; }
footer.site a:hover { color: var(--green); }

/* ---- article head ---- */
.crumbs { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft); padding: 28px 0 0; }
.crumbs a { color: var(--ink-soft); text-decoration: none; }
.crumbs a:hover { color: var(--green); }
.crumbs span { color: var(--crimson); margin: 0 8px; }

.masthead { padding: 18px 0 34px; border-bottom: 1px solid var(--border); }
h1 {
  font-size: clamp(1.9rem, 4.6vw, 2.9rem);
  font-weight: 900; font-style: italic; text-transform: uppercase;
  letter-spacing: -0.015em; line-height: 1.08; margin-bottom: 16px;
  transform: skewX(-3deg);
  text-shadow: -2px 0 0 rgba(36, 81, 214, 0.8), 2px 0 0 rgba(228, 54, 58, 0.8);
}
.standfirst { font-size: 1.12rem; color: var(--ink-soft); margin-bottom: 20px; }
.meta { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--ink-soft); display: flex; flex-wrap: wrap; gap: 8px 12px; }
.meta span + span::before { content: "//"; color: var(--crimson); opacity: 0.7; margin-right: 12px; }

/* ---- prose ---- */
article { padding-bottom: 20px; }
article h2 {
  font-size: clamp(1.35rem, 3.4vw, 1.75rem);
  font-weight: 900; font-style: italic; text-transform: uppercase;
  letter-spacing: -0.01em; margin: 48px 0 14px; scroll-margin-top: 90px;
}
article h3 { font-size: 1.12rem; font-weight: 800; margin: 30px 0 10px; letter-spacing: -0.01em; }
article p { margin-bottom: 18px; color: #DDDFDA; }
article p.lead { font-size: 1.05rem; color: var(--ink-soft); }
article a { color: var(--green); text-decoration: none; border-bottom: 1px solid rgba(111, 207, 60, 0.35); }
article a:hover { border-bottom-color: var(--green); }
article ul, article ol { margin: 0 0 20px 22px; color: #DDDFDA; }
article li { margin-bottom: 9px; }
article strong { color: var(--ink); font-weight: 700; }
article code { font-family: var(--mono); font-size: 0.86em; background: rgba(244, 245, 240, 0.07); padding: 2px 6px; border-radius: 6px; color: var(--ink); }
article hr { border: none; border-top: 1px solid var(--border); margin: 40px 0; }
article blockquote {
  border-left: 3px solid var(--green-deep);
  padding: 4px 0 4px 18px; margin: 0 0 20px; color: var(--ink-soft); font-style: italic;
}

/* ---- components ---- */
.toc { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 20px 24px; margin: 34px 0; }
.toc h2 { font-size: 0.72rem !important; font-family: var(--mono); letter-spacing: 0.14em; margin: 0 0 12px !important; font-style: normal; color: var(--ink-soft); font-weight: 700; }
.toc ol { margin: 0 0 0 20px; }
.toc li { margin-bottom: 6px; }
.toc a { color: var(--ink); border-bottom: none; font-size: 0.96rem; }
.toc a:hover { color: var(--green); }

.callout {
  background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--green-deep);
  border-radius: 12px; padding: 18px 22px; margin: 0 0 24px;
}
.callout.warn { border-left-color: var(--crimson); }
.callout.note { border-left-color: var(--racing-blue); }
.callout h3 { margin: 0 0 8px; font-size: 0.74rem; font-family: var(--mono); letter-spacing: 0.13em; text-transform: uppercase; color: var(--green); }
.callout.warn h3 { color: var(--crimson); }
.callout.note h3 { color: #6E93FF; }
.callout p:last-child { margin-bottom: 0; }

.formula {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 14px;
  padding: 22px 24px; margin: 0 0 24px; text-align: center;
  font-family: var(--mono); font-size: 1rem; color: var(--ink); line-height: 1.9;
}
.formula em { color: var(--green); font-style: normal; }

.table-wrap { overflow-x: auto; margin: 0 0 26px; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 0.94rem; min-width: 520px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
th { font-weight: 700; color: var(--ink); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; }
td { color: var(--ink-soft); }
td strong { color: var(--ink); }
.bad { color: var(--crimson); font-weight: 700; }
.good { color: var(--green); font-weight: 700; }
.mid { color: var(--amber); font-weight: 700; }
.num { font-variant-numeric: tabular-nums; white-space: nowrap; }

/* calculator */
.calc { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 24px; margin: 0 0 28px; }
.calc h3 { margin: 0 0 4px; font-size: 1.05rem; }
.calc .hint { color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 18px; }
.calc .fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; }
.calc label { display: block; font-size: 0.76rem; font-family: var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 6px; }
.calc input, .calc select {
  width: 100%; background: var(--paper); color: var(--ink);
  border: 1px solid var(--border); border-radius: 10px; padding: 11px 12px;
  font-size: 1rem; font-family: var(--mono);
}
.calc input:focus, .calc select:focus { border-color: var(--green-deep); outline: none; }
.calc .out {
  margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--border);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px;
}
.calc .out div span { display: block; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); }
.calc .out div b { font-size: 1.5rem; font-weight: 900; color: var(--green); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.calc .out div b.muted { color: var(--ink); }

.checklist { list-style: none; margin: 0 0 24px !important; display: grid; gap: 10px; }
.checklist li {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 18px 14px 44px; position: relative; margin: 0;
}
.checklist li::before {
  content: ""; position: absolute; left: 16px; top: 18px;
  width: 15px; height: 15px; border: 1.5px solid var(--ink-soft); border-radius: 4px; opacity: 0.65;
}
.checklist li b { display: block; color: var(--ink); }
.checklist li small { color: var(--ink-soft); font-size: 0.9rem; }

.faq details { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; margin-bottom: 12px; }
.faq summary { font-weight: 700; cursor: pointer; }
.faq details p { margin: 10px 0 0; color: var(--ink-soft); font-size: 0.95rem; }

/* cta */
.cta {
  background: linear-gradient(160deg, rgba(87, 174, 41, 0.14), rgba(22, 24, 29, 0.9));
  border: 1px solid rgba(111, 207, 60, 0.25); border-radius: 18px;
  padding: 30px; margin: 40px 0 0; text-align: center;
}
.cta h2 { margin-top: 0 !important; font-size: 1.35rem !important; }
.cta p { color: var(--ink-soft); max-width: 52ch; margin: 0 auto 20px; }
.appstore-badge {
  display: inline-flex; align-items: center; gap: 11px;
  background: #000; color: #fff; border: 1px solid rgba(244, 245, 240, 0.22);
  padding: 10px 20px; border-radius: 12px; text-decoration: none;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.appstore-badge:hover { opacity: 0.85; transform: translateY(-1px); }
.appstore-badge .badge-text { display: flex; flex-direction: column; line-height: 1.15; font-weight: 700; font-size: 1.05rem; text-align: left; }
.appstore-badge .badge-text small { font-size: 0.65rem; font-weight: 500; letter-spacing: 0.03em; color: #c9cad0; }

.dl {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px;
  padding: 12px 18px; text-decoration: none; color: var(--ink); font-weight: 700;
  margin: 0 10px 12px 0;
}
.dl:hover { border-color: var(--green-deep); }
.dl small { display: block; font-weight: 500; color: var(--ink-soft); font-size: 0.78rem; }

/* related / hub cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 22px; text-decoration: none; display: block; color: var(--ink);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--green-deep); transform: translateY(-2px); }
.card .kicker { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--crimson); display: block; margin-bottom: 10px; }
.card h3 { font-size: 1.06rem; font-weight: 800; margin: 0 0 8px; letter-spacing: -0.01em; }
.card p { color: var(--ink-soft); font-size: 0.93rem; margin: 0; }

.sources { font-size: 0.88rem; color: var(--ink-soft); }
.sources li { margin-bottom: 7px; }
.sources a { color: var(--ink-soft); }

@media (max-width: 600px) {
  nav a { margin-left: 14px; font-size: 0.85rem; }
  article h2 { margin-top: 38px; }
  .cta { padding: 24px 20px; }
}
@media print {
  header.site, footer.site, .cta, .toc, .crumbs { display: none; }
  body { background: #fff; color: #000; }
  article p, article li, td { color: #000; }
  .checklist li, .table-wrap, .callout { border-color: #bbb; background: #fff; }
}