/* ==========================================================================
   BrakeForce / metalbending.co.uk — shared guide-page stylesheet
   Colour/font variables pulled directly from the live homepage's inline
   <style> so these pages read as a seamless continuation of the site.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Roboto+Mono:wght@400;500&display=swap');

:root {
  --bg: #15161a;
  --bg-panel: #1e2027;
  --bg-panel-2: #191b21;
  --border: #2c2f38;
  --border-soft: #24262e;
  --text: #f4f5f7;
  --text-muted: #b8bdc7;
  --text-faint: #7e8694;
  --orange: #ff7a18;
  --orange-soft: #ff9445;
  --orange-dim: #2a1a10;
  --green: #3a9e7f;
  --red: #ff7a18;
  --mono: 'Roboto Mono', ui-monospace, "SFMono-Regular", Consolas, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 920px;
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--orange-soft); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: #0e0f12;
  border-bottom: 3px solid var(--orange);
  position: sticky;
  top: 0;
  z-index: 20;
}

.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.4px;
  color: #fff;
}
.brand span { color: var(--orange); }
.brand .mark {
  width: 30px;
  height: 30px;
  background: var(--orange);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0e0f12;
  font-weight: 800;
  font-size: 16px;
  transform: rotate(-4deg);
  flex-shrink: 0;
}

.topnav {
  display: flex;
  gap: 22px;
  font-size: 14px;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.topnav a { color: var(--text-muted); }
.topnav a:hover { color: var(--text); text-decoration: none; }
.topnav a.current { color: var(--orange-soft); }

.top-cta {
  background: var(--orange);
  color: #1a0d05 !important;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  white-space: nowrap;
}
.top-cta:hover { background: var(--orange-soft); text-decoration: none; }

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.breadcrumb {
  font-size: 13px;
  color: var(--text-faint);
  margin-bottom: 18px;
}
.breadcrumb a { color: var(--text-faint); }
.breadcrumb a:hover { color: var(--text-muted); }

.eyebrow {
  color: var(--orange);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin: 0 0 12px;
}

h1 {
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}

.dek {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 70ch;
  margin: 0 0 8px;
}

.meta-row {
  display: flex;
  gap: 16px;
  align-items: center;
  color: var(--text-faint);
  font-size: 13px;
  margin: 18px 0 32px;
  flex-wrap: wrap;
}
.meta-row .dot { opacity: 0.5; }

h2 {
  font-size: 26px;
  letter-spacing: -0.01em;
  margin: 48px 0 16px;
}
h3 {
  font-size: 19px;
  margin: 28px 0 12px;
}

p { margin: 0 0 16px; color: var(--text); }
main p, main li { color: #d7d8dc; }

ul, ol { padding-left: 22px; margin: 0 0 16px; }
li { margin-bottom: 8px; }

strong { color: var(--text); }

code, .formula {
  font-family: var(--mono);
  background: var(--bg-panel-2);
  border: 1px solid var(--border-soft);
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.92em;
  color: var(--orange-soft);
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  margin: 24px 0;
}
.panel-label {
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.panel-label::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 2px;
  background: var(--orange);
}

.formula-block {
  font-family: var(--mono);
  background: var(--bg-panel-2);
  border: 1px solid var(--border-soft);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 15px;
  color: var(--orange-soft);
  margin: 16px 0;
}

.callout {
  border-left: 3px solid var(--orange);
  background: linear-gradient(90deg, rgba(255,122,24,0.08), transparent);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin: 24px 0;
}
.callout p:last-child { margin-bottom: 0; }
.callout.green { border-left-color: var(--green); background: linear-gradient(90deg, rgba(58,158,127,0.1), transparent); }

/* Calculator CTA card */
.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-left: 4px solid var(--orange);
  border-radius: var(--radius);
  padding: 22px 26px;
  margin: 32px 0;
}
.cta-card h3 { margin: 0 0 6px; font-size: 18px; }
.cta-card p { margin: 0; color: var(--text-muted); font-size: 14px; }
.cta-card .btn {
  background: var(--orange);
  color: #1a0d05;
  font-weight: 700;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 14px;
  white-space: nowrap;
  flex-shrink: 0;
}
.cta-card .btn:hover { background: var(--orange-soft); text-decoration: none; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14.5px;
}
th, td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border-soft);
}
th {
  color: var(--text-faint);
  text-transform: uppercase;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  font-weight: 700;
}
td { color: #d7d8dc; }
td.num, th.num { font-family: var(--mono); text-align: right; }
tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.table-wrap table { margin: 0; }
.table-wrap th:first-child, .table-wrap td:first-child { padding-left: 18px; }

.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--green);
  background: rgba(58,158,127,0.12);
  border: 1px solid rgba(58,158,127,0.35);
  padding: 3px 9px;
  border-radius: 999px;
}
.badge.orange {
  color: var(--orange-soft);
  background: rgba(255,122,24,0.1);
  border-color: rgba(255,122,24,0.25);
}

.faq-item {
  border-bottom: 1px solid var(--border-soft);
  padding: 20px 0;
}
.faq-item:last-child { border-bottom: none; }
.faq-q { font-weight: 700; margin: 0 0 8px; font-size: 16px; }
.faq-a { color: var(--text-muted); margin: 0; }

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 20px 0;
}
.guide-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  transition: border-color 0.15s ease;
}
.guide-card:hover { border-color: var(--orange); }
.guide-card a { color: var(--text); font-weight: 600; display: block; margin-bottom: 4px; }
.guide-card a:hover { text-decoration: none; color: var(--orange-soft); }
.guide-card p { margin: 0; font-size: 13.5px; color: var(--text-faint); }

.next-reads {
  margin: 56px 0 8px;
}

hr.divider {
  border: none;
  border-top: 1px solid var(--border-soft);
  margin: 48px 0;
}

footer {
  border-top: 1px solid var(--border-soft);
  margin-top: 60px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}
.footer-disclaimer {
  font-size: 13px;
  color: var(--text-faint);
  max-width: 70ch;
  margin: 0 0 28px;
  line-height: 1.6;
}
.footer-heading {
  text-transform: uppercase;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  font-weight: 700;
  margin: 0 0 14px;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}
.footer-links a { color: var(--text-muted); font-size: 14px; }
.footer-links a:hover { color: var(--orange-soft); }
.footer-copy {
  font-size: 13px;
  color: var(--text-faint);
}

@media (max-width: 720px) {
  .topnav { display: none; }
  .topbar-inner { padding: 14px 18px; }
}

@media (max-width: 640px) {
  h1 { font-size: 30px; }
  h2 { font-size: 21px; }
  .panel, .cta-card { padding: 18px; }
  .cta-card { flex-direction: column; align-items: flex-start; }
  main { padding: 28px 18px 60px; }
}