/* ============================================
   TradeAdPro — Core Stylesheet
   Deploy as: styles.css
   ============================================ */

:root {
  /* Base */
  --bg:          #ffffff;
  --bg-alt:      #f6f7f9;
  --surface:     #ffffff;
  --ink:         #0e1620;
  --ink-2:       #46566a;
  --ink-3:       #7c8b9d;
  --border:      #e2e7ed;
  --border-2:    #cfd7e0;

  /* Brand */
  --navy:        #0e2338;
  --navy-2:      #16344f;
  --flame:       #ff5a1f;
  --flame-dark:  #e04a12;
  --flame-dim:   rgba(255, 90, 31, 0.09);
  --flame-line:  rgba(255, 90, 31, 0.28);
  --cool:        #0d7fd4;
  --cool-dim:    rgba(13, 127, 212, 0.09);
  --green:       #0f9d58;
  --red:         #d93025;
  --amber:       #f0a202;

  /* Type */
  --font-d: 'Archivo', system-ui, -apple-system, sans-serif;
  --font-b: 'Inter', system-ui, -apple-system, sans-serif;
  --font-m: 'JetBrains Mono', ui-monospace, monospace;

  /* Shape */
  --r:     14px;
  --r-sm:  9px;
  --r-lg:  20px;
  --shadow:    0 1px 2px rgba(14,22,32,.04), 0 8px 24px rgba(14,22,32,.06);
  --shadow-lg: 0 2px 4px rgba(14,22,32,.05), 0 20px 48px rgba(14,22,32,.10);
  --maxw: 1160px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--font-b);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-d);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
}

p { color: var(--ink-2); }
a { color: inherit; text-decoration: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.section { padding: 92px 0; }
.section--alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section--navy { background: var(--navy); border: none; }
.section--navy h2, .section--navy h3 { color: #fff; }
.section--navy p { color: #a8bccf; }
.section--tight { padding: 64px 0; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ---------- Section heading ---------- */
.eyebrow {
  font-family: var(--font-m);
  font-size: 0.73rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--flame);
  margin-bottom: 14px;
  display: block;
}
.section--navy .eyebrow { color: #ff8a5c; }

.sec-head { max-width: 720px; margin-bottom: 52px; }
.sec-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head h2 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); margin-bottom: 16px; }
.sec-head p { font-size: 1.06rem; line-height: 1.7; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-family: var(--font-b);
  font-weight: 600;
  font-size: 0.94rem;
  padding: 13px 24px;
  border-radius: var(--r-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all .18s ease;
  white-space: nowrap;
  line-height: 1;
}
.btn--primary { background: var(--flame); color: #fff; box-shadow: 0 2px 12px rgba(255,90,31,.28); }
.btn--primary:hover { background: var(--flame-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(255,90,31,.34); }
.btn--dark { background: var(--navy); color: #fff; }
.btn--dark:hover { background: var(--navy-2); transform: translateY(-1px); }
.btn--outline { background: transparent; border-color: var(--border-2); color: var(--ink); }
.btn--outline:hover { border-color: var(--ink); background: var(--bg-alt); }
.btn--ghost-light { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.24); color: #fff; }
.btn--ghost-light:hover { background: rgba(255,255,255,.16); }
.btn--lg { padding: 16px 30px; font-size: 1rem; }
.btn--sm { padding: 10px 18px; font-size: 0.86rem; }
.btn--block { width: 100%; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 28px;
  height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.nav__logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-d); font-weight: 800; font-size: 1.12rem;
  letter-spacing: -0.03em; color: var(--ink);
}
.nav__logo-mark {
  width: 30px; height: 30px; border-radius: 7px;
  background: linear-gradient(135deg, var(--flame), #ff8a3d);
  display: grid; place-items: center;
  color: #fff; font-size: 0.9rem; font-weight: 800;
  box-shadow: 0 2px 8px rgba(255,90,31,.3);
}
.nav__links { display: flex; gap: 30px; list-style: none; }
.nav__links a { font-size: 0.9rem; font-weight: 500; color: var(--ink-2); transition: color .15s; }
.nav__links a:hover { color: var(--flame); }
.nav__cta { display: flex; align-items: center; gap: 12px; }
.nav__toggle {
  display: none; background: none; border: none; font-size: 1.4rem;
  color: var(--ink); cursor: pointer; padding: 4px 8px;
}

@media (max-width: 900px) {
  .nav__links {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    flex-direction: column; gap: 0; padding: 8px 0;
    box-shadow: var(--shadow);
  }
  .nav.open .nav__links { display: flex; }
  .nav__links li { border-bottom: 1px solid var(--border); }
  .nav__links li:last-child { border-bottom: none; }
  .nav__links a { display: block; padding: 14px 28px; font-size: 0.95rem; }
  .nav__toggle { display: block; }
}

/* ---------- Hero ---------- */
.hero {
  padding: 84px 0 76px;
  background:
    radial-gradient(900px 460px at 88% -8%, rgba(255,90,31,.10), transparent 65%),
    radial-gradient(700px 420px at 4% 8%, rgba(13,127,212,.07), transparent 60%),
    var(--bg);
  border-bottom: 1px solid var(--border);
}
.hero h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.85rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  margin-bottom: 22px;
}
.hero h1 em { font-style: normal; color: var(--flame); display: block; }
.hero__sub { font-size: 1.13rem; line-height: 1.68; max-width: 560px; margin-bottom: 32px; }
.hero__ctas { display: flex; gap: 13px; flex-wrap: wrap; margin-bottom: 30px; }
.hero__trust { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.hero__trust span {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 0.85rem; color: var(--ink-2); font-weight: 500;
}
.hero__trust span::before { content: '✓'; color: var(--green); font-weight: 700; }

/* Hero price card */
.price-card {
  background: var(--navy);
  border-radius: var(--r-lg);
  padding: 36px;
  color: #fff;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.price-card::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 220px; height: 220px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,90,31,.30), transparent 68%);
}
.price-card__tag {
  display: inline-block; font-family: var(--font-m); font-size: 0.7rem;
  letter-spacing: 0.11em; text-transform: uppercase;
  background: var(--flame); color: #fff;
  padding: 5px 11px; border-radius: 100px; margin-bottom: 20px;
  position: relative;
}
.price-card__amt {
  font-family: var(--font-d); font-weight: 800;
  font-size: 3.6rem; line-height: 1; letter-spacing: -0.04em;
  color: #fff; position: relative;
}
.price-card__amt sup { font-size: 1.3rem; vertical-align: super; margin-right: 2px; font-weight: 700; }
.price-card__per { font-size: 1rem; color: #8fa9c2; font-weight: 500; font-family: var(--font-b); letter-spacing: 0; }
.price-card__note { font-size: 0.86rem; color: #8fa9c2; margin: 12px 0 24px; position: relative; }
.price-card ul { list-style: none; position: relative; }
.price-card li {
  display: flex; gap: 11px; align-items: flex-start;
  font-size: 0.9rem; color: #d3e0ec; padding: 9px 0;
  border-top: 1px solid rgba(255,255,255,.10);
}
.price-card li:first-child { border-top: none; }
.price-card li b { color: #fff; font-weight: 600; }
.price-card li::before { content: '✓'; color: var(--flame); font-weight: 800; flex-shrink: 0; }

/* ---------- Proof bar ---------- */
.proofbar { background: var(--navy); padding: 26px 0; }
.proofbar__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; flex-wrap: wrap;
}
.proof {
  display: flex; flex-direction: column; gap: 2px;
  padding: 0 8px; flex: 1; min-width: 150px;
}
.proof__val {
  font-family: var(--font-d); font-weight: 800; font-size: 1.5rem;
  color: #fff; letter-spacing: -0.02em; line-height: 1.1;
}
.proof__val.flame { color: var(--flame); }
.proof__lbl { font-size: 0.78rem; color: #8fa9c2; line-height: 1.4; }
.proof__div { width: 1px; align-self: stretch; background: rgba(255,255,255,.14); }

/* ---------- Cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r); padding: 28px;
  transition: border-color .18s, transform .18s, box-shadow .18s;
}
.card:hover { border-color: var(--border-2); transform: translateY(-2px); box-shadow: var(--shadow); }
.card h3 { font-size: 1.1rem; margin-bottom: 9px; }
.card p { font-size: 0.92rem; line-height: 1.66; }

.card__ic {
  width: 44px; height: 44px; border-radius: 11px;
  display: grid; place-items: center; font-size: 1.25rem; margin-bottom: 16px;
}
.ic--flame { background: var(--flame-dim); border: 1px solid var(--flame-line); }
.ic--cool  { background: var(--cool-dim);  border: 1px solid rgba(13,127,212,.24); }
.ic--amber { background: rgba(240,162,2,.10); border: 1px solid rgba(240,162,2,.26); }
.ic--red   { background: rgba(217,48,37,.08); border: 1px solid rgba(217,48,37,.20); }

.card__foot {
  margin-top: 16px; padding: 10px 13px; border-radius: var(--r-sm);
  font-size: 0.8rem; font-family: var(--font-m); line-height: 1.5;
  background: var(--bg-alt); color: var(--ink-2);
  border-left: 3px solid var(--border-2);
}
.card__foot.bad  { background: rgba(217,48,37,.05);  border-left-color: var(--red);   color: #96261e; }
.card__foot.good { background: rgba(15,157,88,.06);  border-left-color: var(--green); color: #0a6b3c; }

/* Numbered diff cards */
.diff {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r); padding: 30px; position: relative; overflow: hidden;
}
.diff::after {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--flame), rgba(255,90,31,0));
}
.diff__no {
  font-family: var(--font-m); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.12em; color: var(--flame);
}
.diff h3 { font-size: 1.18rem; margin: 8px 0 11px; }
.diff p { font-size: 0.93rem; line-height: 1.7; }
.diff__vs {
  margin-top: 15px; padding-top: 14px; border-top: 1px dashed var(--border-2);
  font-size: 0.82rem; font-family: var(--font-m); color: var(--ink-3);
}
.diff__vs b { color: var(--ink); font-weight: 600; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 20px; }
.step { padding: 0 24px; position: relative; }
.step:first-child { padding-left: 0; }
.step:last-child { padding-right: 0; }
.step::after {
  content: ''; position: absolute; right: 0; top: 22px; bottom: 8px;
  width: 1px; background: var(--border);
}
.step:last-child::after { display: none; }
.step__no {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--flame); color: #fff;
  display: grid; place-items: center;
  font-family: var(--font-d); font-weight: 800; font-size: 0.9rem;
  margin-bottom: 15px;
}
.step h3 { font-size: 1.03rem; margin-bottom: 8px; }
.step p { font-size: 0.88rem; line-height: 1.62; }
.step__time {
  display: inline-block; margin-top: 11px; font-family: var(--font-m);
  font-size: 0.74rem; color: var(--flame); font-weight: 600;
  background: var(--flame-dim); padding: 3px 9px; border-radius: 5px;
}

/* ---------- Pricing block ---------- */
.pricing-wrap { max-width: 560px; margin: 0 auto; }
.pricing {
  background: var(--surface); border: 2px solid var(--flame);
  border-radius: var(--r-lg); padding: 42px 38px;
  box-shadow: 0 18px 44px rgba(255,90,31,.13);
  position: relative;
}
.pricing__ribbon {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--flame); color: #fff;
  font-family: var(--font-m); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 6px 16px; border-radius: 100px; white-space: nowrap;
}
.pricing__name { font-family: var(--font-d); font-weight: 700; font-size: 1.2rem; margin-bottom: 4px; }
.pricing__desc { font-size: 0.9rem; color: var(--ink-3); margin-bottom: 22px; }
.pricing__amt {
  font-family: var(--font-d); font-weight: 800; font-size: 4.1rem;
  line-height: 1; letter-spacing: -0.045em; color: var(--ink);
}
.pricing__amt sup { font-size: 1.5rem; vertical-align: super; margin-right: 3px; }
.pricing__amt span { font-family: var(--font-b); font-size: 1.02rem; font-weight: 500; color: var(--ink-3); letter-spacing: 0; }
.pricing__sub { font-size: 0.88rem; color: var(--ink-2); margin: 12px 0 26px; }
.pricing ul { list-style: none; margin-bottom: 28px; }
.pricing li {
  display: flex; gap: 11px; align-items: flex-start;
  font-size: 0.92rem; color: var(--ink-2); padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.pricing li:last-child { border-bottom: none; }
.pricing li::before { content: '✓'; color: var(--green); font-weight: 800; flex-shrink: 0; }
.pricing li b { color: var(--ink); font-weight: 600; }
.pricing__fine { font-size: 0.8rem; color: var(--ink-3); text-align: center; margin-top: 15px; line-height: 1.6; }

.excl { margin-top: 34px; padding: 22px 26px; background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--r); }
.excl h4 { font-size: 0.95rem; margin-bottom: 12px; }
.excl ul { list-style: none; display: grid; gap: 8px; }
.excl li { font-size: 0.87rem; color: var(--ink-2); display: flex; gap: 10px; align-items: flex-start; }
.excl li::before { content: '—'; color: var(--ink-3); flex-shrink: 0; }

/* ---------- Benchmark table ---------- */
.bench { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 0.92rem; }
.bench th, .bench td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--border); }
.bench th {
  font-family: var(--font-m); font-size: 0.74rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3);
  border-bottom: 1.5px solid var(--border-2);
}
.bench td { color: var(--ink-2); }
.bench td:first-child { color: var(--ink); font-weight: 500; }
.bench td.num { font-family: var(--font-m); font-weight: 600; color: var(--ink); white-space: nowrap; }
.bench tr:last-child td { border-bottom: none; }

/* ---------- FAQ ---------- */
.faq { max-width: 780px; margin: 0 auto; }
.faq__item { border-bottom: 1px solid var(--border); }
.faq__q {
  display: flex; justify-content: space-between; align-items: center; gap: 18px;
  padding: 20px 0; cursor: pointer; user-select: none;
}
.faq__q h3 { font-size: 1rem; font-weight: 600; font-family: var(--font-b); letter-spacing: 0; }
.faq__ic { color: var(--flame); font-size: 1.35rem; transition: transform .26s; flex-shrink: 0; line-height: 1; }
.faq__a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq__a p { padding-bottom: 20px; font-size: 0.93rem; line-height: 1.75; }
.faq__item.open .faq__ic { transform: rotate(45deg); }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy) 0%, #1c4468 100%);
  padding: 74px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-band::before {
  content: ''; position: absolute; top: -140px; left: 50%; transform: translateX(-50%);
  width: 620px; height: 400px;
  background: radial-gradient(ellipse, rgba(255,90,31,.22), transparent 68%);
}
.cta-band__in { position: relative; max-width: 640px; margin: 0 auto; }
.cta-band h2 { color: #fff; font-size: clamp(1.8rem, 3.6vw, 2.5rem); margin-bottom: 16px; }
.cta-band p { color: #a8bccf; font-size: 1.05rem; margin-bottom: 30px; }
.cta-band__btns { display: flex; gap: 13px; justify-content: center; flex-wrap: wrap; }

/* ---------- Form ---------- */
.form-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 38px; box-shadow: var(--shadow);
}
.field { margin-bottom: 20px; }
.field label {
  display: block; font-size: 0.87rem; font-weight: 600;
  color: var(--ink); margin-bottom: 7px;
}
.field label span { color: var(--ink-3); font-weight: 400; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px;
  border: 1.5px solid var(--border-2); border-radius: var(--r-sm);
  font-family: var(--font-b); font-size: 0.94rem; color: var(--ink);
  background: var(--bg); transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--flame);
  box-shadow: 0 0 0 3px var(--flame-dim);
}
.field textarea { resize: vertical; min-height: 96px; }
.form-note { font-size: 0.82rem; color: var(--ink-3); text-align: center; margin-top: 14px; line-height: 1.6; }

.form-status { padding: 14px 16px; border-radius: var(--r-sm); font-size: 0.9rem; margin-bottom: 18px; display: none; }
.form-status.ok  { display: block; background: rgba(15,157,88,.08); border: 1px solid rgba(15,157,88,.28); color: #0a6b3c; }
.form-status.err { display: block; background: rgba(217,48,37,.06); border: 1px solid rgba(217,48,37,.26); color: #96261e; }

/* ---------- Footer ---------- */
.footer { background: var(--navy); padding: 54px 0 30px; color: #8fa9c2; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer__logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-d); font-weight: 800; font-size: 1.1rem;
  color: #fff; margin-bottom: 13px;
}
.footer p { font-size: 0.88rem; color: #8fa9c2; line-height: 1.7; max-width: 300px; }
.footer h4 {
  color: #fff; font-size: 0.78rem; font-family: var(--font-m);
  letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 15px; font-weight: 600;
}
.footer ul { list-style: none; display: grid; gap: 10px; }
.footer ul a { font-size: 0.89rem; color: #8fa9c2; transition: color .15s; }
.footer ul a:hover { color: var(--flame); }
.footer__bar {
  border-top: 1px solid rgba(255,255,255,.10); padding-top: 24px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 0.83rem; color: #6f889f;
}

/* ---------- Animation ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.rise   { animation: rise .6s cubic-bezier(.22,.9,.28,1) both; }
.rise-1 { animation: rise .6s cubic-bezier(.22,.9,.28,1) .05s both; }
.rise-2 { animation: rise .6s cubic-bezier(.22,.9,.28,1) .15s both; }
.rise-3 { animation: rise .6s cubic-bezier(.22,.9,.28,1) .25s both; }
.rise-4 { animation: rise .6s cubic-bezier(.22,.9,.28,1) .35s both; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .grid-2 { grid-template-columns: 1fr; gap: 40px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; gap: 32px 0; }
  .step::after { display: none; }
  .step { padding: 0 20px 0 0; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .proof__div { display: none; }
  .proof { min-width: 42%; }
}

@media (max-width: 620px) {
  .section { padding: 62px 0; }
  .container { padding: 0 20px; }
  .grid-3, .grid-4, .steps { grid-template-columns: 1fr; }
  .step { padding: 0; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 52px; }
  .hero__ctas .btn { width: 100%; }
  .price-card, .pricing, .form-card { padding: 28px 22px; }
  .pricing__amt { font-size: 3.3rem; }
  .bench th, .bench td { padding: 11px 10px; font-size: 0.85rem; }
  .proof { min-width: 100%; }
}

/* ============================================
   BLOG
   ============================================ */

/* --- Blog index --- */
.post-list { display: grid; gap: 20px; max-width: 820px; }
.post-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r); padding: 30px 32px;
  transition: border-color .18s, transform .18s, box-shadow .18s;
  display: block;
}
.post-card:hover { border-color: var(--flame); transform: translateY(-2px); box-shadow: var(--shadow); }
.post-card__meta {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  font-family: var(--font-m); font-size: 0.73rem;
  letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-3);
  margin-bottom: 12px;
}
.post-card__cat { color: var(--flame); font-weight: 600; }
.post-card__dot { width: 3px; height: 3px; border-radius: 50%; background: var(--border-2); }
.post-card h2 { font-size: 1.35rem; margin-bottom: 10px; line-height: 1.28; }
.post-card:hover h2 { color: var(--flame); }
.post-card p { font-size: 0.94rem; line-height: 1.68; }
.post-card__more {
  display: inline-block; margin-top: 15px;
  font-size: 0.87rem; font-weight: 600; color: var(--flame);
}

/* --- Article --- */
.article-head {
  padding: 58px 0 44px;
  background: linear-gradient(180deg, rgba(255,90,31,.05), transparent);
  border-bottom: 1px solid var(--border);
}
.article-head__in { max-width: 780px; margin: 0 auto; }
.article-head h1 {
  font-size: clamp(1.95rem, 4.2vw, 2.85rem);
  line-height: 1.16; margin: 14px 0 18px;
}
.article-head__sub { font-size: 1.08rem; line-height: 1.68; color: var(--ink-2); }
.article-meta {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  font-family: var(--font-m); font-size: 0.74rem;
  letter-spacing: 0.07em; text-transform: uppercase; color: var(--ink-3);
  margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border);
}
.article-meta .cat { color: var(--flame); font-weight: 600; }

.article { max-width: 780px; margin: 0 auto; padding: 56px 0 20px; }
.article > p { font-size: 1.02rem; line-height: 1.82; margin-bottom: 22px; }
.article h2 {
  font-size: 1.62rem; margin: 46px 0 16px; padding-top: 6px;
  scroll-margin-top: 84px;
}
.article h3 { font-size: 1.18rem; margin: 32px 0 12px; }
.article ul, .article ol { margin: 0 0 24px 0; padding-left: 22px; }
.article li { font-size: 1rem; line-height: 1.78; color: var(--ink-2); margin-bottom: 9px; }
.article li::marker { color: var(--flame); }
.article strong { color: var(--ink); font-weight: 600; }
.article a { color: var(--flame); text-decoration: underline; text-underline-offset: 2px; }
.article a:hover { color: var(--flame-dark); }

.callout {
  background: var(--bg-alt); border: 1px solid var(--border);
  border-left: 4px solid var(--flame);
  border-radius: var(--r-sm); padding: 22px 26px; margin: 30px 0;
}
.callout p { font-size: 0.96rem; line-height: 1.72; margin: 0; }
.callout p + p { margin-top: 12px; }
.callout__label {
  font-family: var(--font-m); font-size: 0.71rem; font-weight: 600;
  letter-spacing: 0.11em; text-transform: uppercase;
  color: var(--flame); display: block; margin-bottom: 8px;
}
.callout--cool { border-left-color: var(--cool); }
.callout--cool .callout__label { color: var(--cool); }

.article table {
  width: 100%; border-collapse: collapse; margin: 28px 0; font-size: 0.93rem;
}
.article table th, .article table td {
  padding: 13px 15px; text-align: left; border-bottom: 1px solid var(--border);
}
.article table th {
  font-family: var(--font-m); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3);
  border-bottom: 1.5px solid var(--border-2); background: var(--bg-alt);
}
.article table td { color: var(--ink-2); }
.article table td:first-child { color: var(--ink); font-weight: 500; }
.article table td.num { font-family: var(--font-m); font-weight: 600; color: var(--ink); white-space: nowrap; }

.tldr {
  background: var(--navy); border-radius: var(--r); padding: 26px 30px; margin: 0 0 38px;
}
.tldr .callout__label { color: #ff8a5c; }
.tldr ul { margin: 0; padding-left: 20px; }
.tldr li { color: #d3e0ec; font-size: 0.95rem; line-height: 1.7; margin-bottom: 8px; }
.tldr li::marker { color: var(--flame); }
.tldr li:last-child { margin-bottom: 0; }

.article-cta {
  margin: 46px 0 10px; padding: 32px 34px;
  border: 2px solid var(--flame); border-radius: var(--r);
  background: linear-gradient(135deg, rgba(255,90,31,.05), var(--surface));
}
.article-cta h3 { font-size: 1.25rem; margin-bottom: 10px; }
.article-cta p { font-size: 0.95rem; line-height: 1.7; margin-bottom: 20px; }

.article-foot {
  max-width: 780px; margin: 0 auto; padding: 30px 0 0;
  border-top: 1px solid var(--border);
  font-size: 0.85rem; color: var(--ink-3); line-height: 1.7;
}

@media (max-width: 620px) {
  .article { padding: 40px 0 16px; }
  .article > p, .article li { font-size: 0.97rem; }
  .article h2 { font-size: 1.38rem; margin: 34px 0 12px; }
  .post-card { padding: 24px 22px; }
  .article-cta { padding: 26px 22px; }
  .tldr { padding: 22px 20px; }
  .article table th, .article table td { padding: 10px 9px; font-size: 0.85rem; }
}

/* --- Breadcrumbs --- */
.crumbs {
  font-family: var(--font-m); font-size: 0.74rem;
  letter-spacing: 0.05em; color: var(--ink-3);
  margin-bottom: 16px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center;
}
.crumbs a { color: var(--ink-3); }
.crumbs a:hover { color: var(--flame); }
.crumbs span { color: var(--border-2); }
.crumbs > span:last-child { color: var(--ink-2); }

/* --- Related posts --- */
.related {
  max-width: 780px; margin: 44px auto 0; padding-top: 34px;
  border-top: 1px solid var(--border);
}
.related__item {
  display: flex; flex-direction: column; gap: 5px;
  padding: 17px 20px; margin-bottom: 11px;
  background: var(--bg-alt); border: 1px solid var(--border);
  border-left: 3px solid var(--flame); border-radius: var(--r-sm);
  transition: background .15s, transform .15s;
}
.related__item:hover { background: #eef1f5; transform: translateX(2px); }
.related__cat {
  font-family: var(--font-m); font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.11em; text-transform: uppercase; color: var(--flame);
}
.related__title { font-weight: 600; font-size: 0.97rem; color: var(--ink); line-height: 1.45; }