/* ============================================================
   Talha Sohail — talhasohail.co.uk
   Ledger-inspired design system
   Palette: paper white, ink slate, ledger green, margin red
   Type: IBM Plex Serif (display) / Sans (body) / Mono (labels)
   ============================================================ */

:root {
  --paper: #FBFAF7;
  --ink: #1C2B33;
  --ink-soft: #51616B;
  --ledger: #1E5945;
  --ledger-tint: #EAF1EC;
  --rule-red: #A8402F;
  --hairline: #D8D5CC;
  --max: 1000px;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

a { color: var(--ledger); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--rule-red);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Header ---------- */
.site-header { border-bottom: 1px solid var(--hairline); }
.site-header .wrap {
  display: flex; align-items: baseline; justify-content: space-between;
  flex-wrap: wrap; gap: .5rem 1.5rem; padding-top: 1.4rem; padding-bottom: 1.4rem;
}
.brand {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-weight: 600; font-size: 1.25rem; color: var(--ink);
  text-decoration: none; letter-spacing: .01em;
}
.brand span { color: var(--ledger); }
.site-nav { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.site-nav a {
  font-family: "IBM Plex Mono", monospace; font-size: .8rem;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink-soft); text-decoration: none;
}
.site-nav a:hover { color: var(--ledger); }
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom: 2px solid var(--rule-red);
  padding-bottom: 2px;
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow {
  font-family: "IBM Plex Mono", monospace; font-size: .78rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--ledger);
  display: block; margin-bottom: 1rem;
}

/* ---------- Hero ---------- */
.hero { padding: 4.5rem 0 3.5rem; }
.hero h1 {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-weight: 600; font-size: clamp(2.4rem, 6vw, 3.75rem);
  line-height: 1.08; letter-spacing: -.01em; max-width: 18ch;
}
.hero .lede {
  margin-top: 1.5rem; max-width: 58ch;
  font-size: clamp(1.1rem, 2.2vw, 1.25rem); color: var(--ink-soft);
}
.hero .actions { margin-top: 2.2rem; display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; }

.btn {
  display: inline-block; background: var(--ledger); color: #fff;
  font-family: "IBM Plex Mono", monospace; font-size: .85rem;
  letter-spacing: .08em; text-transform: uppercase;
  padding: .85rem 1.4rem; text-decoration: none; border-radius: 2px;
  transition: background .15s ease;
}
.btn:hover { background: var(--ink); color: #fff; }
.link-quiet { font-family: "IBM Plex Mono", monospace; font-size: .85rem; letter-spacing: .06em; }

/* ---------- Ledger strip (signature: double rule like a totals row) ---------- */
.ledger-strip {
  border-top: 3px double var(--ink);
  border-bottom: 1px solid var(--hairline);
  padding: 1.5rem 0 1.6rem; margin: 0 0 .5rem;
}
.ledger-strip dl {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem 2rem;
}
.ledger-strip dt {
  font-family: "IBM Plex Mono", monospace; font-size: .72rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--ink-soft);
  margin-bottom: .3rem;
}
.ledger-strip dd { font-weight: 500; font-size: .98rem; }

/* ---------- Sections ---------- */
.section { padding: 3.5rem 0; }
.section + .section { border-top: 1px solid var(--hairline); }
.section h2 {
  font-family: "IBM Plex Serif", Georgia, serif; font-weight: 600;
  font-size: clamp(1.5rem, 3.5vw, 2rem); margin-bottom: 1.2rem; letter-spacing: -.005em;
}
.section p + p { margin-top: 1rem; }
.measure { max-width: 62ch; }

/* ---------- Service cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; margin-top: 2rem; }
.card {
  background: #fff; border: 1px solid var(--hairline); border-radius: 3px;
  padding: 1.6rem 1.5rem 1.7rem;
}
.card h3 {
  font-family: "IBM Plex Serif", Georgia, serif; font-weight: 600;
  font-size: 1.15rem; margin-bottom: .6rem;
}
.card p { color: var(--ink-soft); font-size: .97rem; }
.card .tick {
  font-family: "IBM Plex Mono", monospace; color: var(--rule-red);
  font-size: .8rem; display: block; margin-bottom: .8rem; letter-spacing: .1em;
}

/* ---------- Prose (articles, about) ---------- */
.prose { max-width: 66ch; }
.prose h1 {
  font-family: "IBM Plex Serif", Georgia, serif; font-weight: 600;
  font-size: clamp(1.9rem, 4.5vw, 2.6rem); line-height: 1.15; margin-bottom: 1rem;
}
.prose h2 {
  font-family: "IBM Plex Serif", Georgia, serif; font-weight: 600;
  font-size: 1.4rem; margin: 2.2rem 0 .8rem;
}
.prose p { margin: 1rem 0; }
.prose ul, .prose ol { margin: 1rem 0 1rem 1.4rem; }
.prose li { margin: .45rem 0; }
.prose .byline {
  font-family: "IBM Plex Mono", monospace; font-size: .8rem;
  letter-spacing: .06em; color: var(--ink-soft); margin: 0 0 2rem;
  padding-left: .9rem; border-left: 2px solid var(--rule-red);
}
.prose strong { font-weight: 600; }
.article-head { padding-top: 3.5rem; }
.article-body { padding-bottom: 3.5rem; }

/* Totals-style callout */
.totals {
  border-top: 3px double var(--ink); margin-top: 2.5rem; padding-top: 1.2rem;
}
.totals p { font-weight: 500; }

/* ---------- Blog list ---------- */
.post-list { margin-top: 2rem; display: grid; gap: 1.25rem; }
.post-item {
  background: #fff; border: 1px solid var(--hairline); border-radius: 3px;
  padding: 1.5rem 1.5rem 1.6rem;
}
.post-item .date {
  font-family: "IBM Plex Mono", monospace; font-size: .75rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft);
}
.post-item h3 { font-family: "IBM Plex Serif", Georgia, serif; font-weight: 600; font-size: 1.3rem; margin: .5rem 0 .5rem; }
.post-item h3 a { color: var(--ink); text-decoration: none; }
.post-item h3 a:hover { color: var(--ledger); text-decoration: underline; }
.post-item p { color: var(--ink-soft); font-size: .98rem; }

/* ---------- Contact band ---------- */
.contact-band { background: var(--ledger-tint); border-top: 3px double var(--ink); }
.contact-band .wrap { padding-top: 3rem; padding-bottom: 3.2rem; }
.contact-band h2 {
  font-family: "IBM Plex Serif", Georgia, serif; font-weight: 600;
  font-size: clamp(1.5rem, 3.5vw, 2rem); margin-bottom: .8rem;
}
.contact-band p { max-width: 58ch; color: var(--ink-soft); }
.contact-band .btn { margin-top: 1.6rem; }
.email-plain { font-family: "IBM Plex Mono", monospace; font-size: .95rem; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--hairline); }
.site-footer .wrap {
  padding-top: 2rem; padding-bottom: 2.5rem;
  display: flex; flex-wrap: wrap; gap: 1rem 2.5rem; justify-content: space-between;
  font-size: .9rem; color: var(--ink-soft);
}
.site-footer a { color: var(--ink-soft); }
.site-footer a:hover { color: var(--ledger); }

@media (max-width: 560px) {
  .hero { padding-top: 3rem; }
  .section { padding: 2.6rem 0; }
}