/* =========================================================
   Marteno — Ledger (responsive merge of desktop + mobile)
   ========================================================= */

:root {
  --bg: #fafaf7;
  --ink: #171615;
  --ink-2: #3c3a37;
  --muted: #6f6b66;
  --subtle: #a09c96;
  --rule: #e5e1d9;
  --rule-strong: #cfcbc1;
  --signal: #b5261f;
  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
  --gutter: 80px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.55;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "liga", "kern";
}

/* ---------- Paper-grain overlay ---------- */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: .4;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.07 0 0 0 0 0.07 0 0 0 0 0.07 0 0 0 0.09 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 240px 240px;
}

/* ---------- Header / nav ---------- */
header {
  position: relative;
  z-index: 5;
  padding: 28px var(--gutter) 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 40px;
}
.wordmark { display: inline-block; }
.wordmark img { display: block; height: 56px; width: auto; }
.nav-meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--subtle);
  display: flex;
  gap: 24px;
  justify-content: center;
}
.nav-meta b { color: var(--ink-2); font-weight: 500; }
.nav-links { display: flex; gap: 32px; }
.nav-links a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-decoration: none;
  transition: color .18s ease;
}
.nav-links a:hover { color: var(--signal); }
.masthead-rule {
  margin-top: 22px;
  height: 1px;
  background: var(--ink);
  margin-left: var(--gutter);
  margin-right: var(--gutter);
}

/* ---------- Hero ---------- */
.hero {
  padding: 120px var(--gutter) 160px;
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 440px;
  gap: 80px;
  align-items: end;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 40px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--signal);
  display: inline-block;
}
h1.display {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(48px, 8vw, 112px);
  line-height: .98;
  letter-spacing: -.035em;
  margin: 0 0 48px;
  max-width: 12ch;
  color: var(--ink);
}
h1.display em {
  font-style: italic;
  font-weight: 300;
  color: var(--ink-2);
}
.lede {
  font-family: var(--serif);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 42ch;
  margin: 0 0 56px;
}
.cta-row {
  display: flex;
  gap: 32px;
  align-items: center;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: 18px 28px;
  text-decoration: none;
  transition: all .2s ease;
  display: inline-block;
  cursor: pointer;
}
.btn.primary { background: var(--ink); color: var(--bg); border: 1px solid var(--ink); }
.btn.primary:hover { background: var(--signal); border-color: var(--signal); }
.btn.ghost {
  color: var(--ink);
  border-bottom: 1px solid var(--rule-strong);
  padding: 4px 0;
}
.btn.ghost:hover { color: var(--signal); border-bottom-color: var(--signal); }
.btn.outline {
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 14px 24px;
  background: transparent;
}
.btn.outline:hover { background: var(--ink); color: var(--bg); }

/* ---------- Hero stats panel ---------- */
.pulse {
  position: relative;
  border-left: 1px solid var(--rule);
  padding-left: 40px;
}
.pulse-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--subtle);
  margin-bottom: 18px;
}
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.stat {
  padding: 24px 22px 26px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 150px;
  position: relative;
}
.stat:first-child::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--signal);
}
.stat-num {
  font-family: var(--serif);
  font-weight: 400;
  font-style: italic;
  font-size: 42px;
  line-height: 1;
  letter-spacing: -.025em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.stat-num span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  font-style: normal;
  font-weight: 400;
  margin-left: 4px;
}
.stat-lbl {
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink-2);
  margin-top: auto;
}
.stat-lbl small {
  display: block;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--subtle);
}

/* ---------- Section chrome ---------- */
section.block {
  padding: 120px var(--gutter);
  position: relative;
  border-top: 1px solid var(--rule);
}
.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  margin-bottom: 80px;
  align-items: baseline;
}
.section-head .num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}
.section-head .num b { color: var(--signal); font-weight: 500; }
h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(36px, 4.6vw, 56px);
  line-height: 1.05;
  letter-spacing: -.025em;
  margin: 0 0 20px;
  max-width: 22ch;
  color: var(--ink);
}
h2 em { font-style: italic; font-weight: 300; color: var(--ink-2); }
.section-intro {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.5;
  color: var(--muted);
  max-width: 48ch;
  margin: 0;
}

/* ---------- Credibility ---------- */
.credibility {
  padding: 64px var(--gutter);
  border-top: 1px solid var(--rule);
}
.cred-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 80px;
  align-items: baseline;
}
.cred-grid .eyebrow { margin: 0; }
.cred-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.cred-list li {
  font-family: var(--serif);
  font-size: 19px;
  color: var(--ink-2);
  padding-top: 14px;
  border-top: 1px solid var(--rule);
}
.cred-list li small {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--subtle);
  margin-bottom: 8px;
}

/* ---------- Services ---------- */
.service-list { list-style: none; padding: 0; margin: 0; }
.service {
  display: grid;
  grid-template-columns: 80px 1fr 260px;
  gap: 60px;
  padding: 56px 0;
  border-top: 1px solid var(--rule);
  align-items: baseline;
}
.service:last-child { border-bottom: 1px solid var(--rule); }
.service-num {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: 44px;
  color: var(--signal);
  letter-spacing: -.02em;
  line-height: 1;
}
.service h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 32px;
  letter-spacing: -.015em;
  margin: 0 0 14px;
  color: var(--ink);
}
.service p {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.55;
  color: var(--muted);
  margin: 0;
  max-width: 52ch;
}
.service-meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--subtle);
  display: grid;
  gap: 18px;
  padding-top: 10px;
}
.service-meta div b {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 18px;
  color: var(--ink);
  text-transform: none;
  letter-spacing: -.01em;
  margin-top: 4px;
}

/* ---------- Pull quote ---------- */
.pullquote {
  padding: 160px var(--gutter);
  border-top: 1px solid var(--rule);
  position: relative;
}
.pullquote blockquote {
  margin: 0;
  max-width: 26ch;
}
.pullquote p {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(44px, 7vw, 84px);
  line-height: 1.06;
  letter-spacing: -.025em;
  color: var(--ink);
  margin: 0;
}
.pullquote .attrib {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--signal);
  margin-top: 56px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.pullquote .attrib::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--signal);
}

/* ---------- Thinking ---------- */
.essays {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  max-width: 960px;
}
.essay { border-top: 1px solid var(--rule); }
.essay:last-child { border-bottom: 1px solid var(--rule); }
.essay a {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 48px;
  padding: 36px 0;
  align-items: baseline;
  text-decoration: none;
  color: inherit;
  transition: padding .2s ease, color .2s ease;
}
.essay a:hover { padding-left: 12px; }
.essay-meta {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.essay-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
  margin: 0 0 6px;
}
.essay-sub {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: 17px;
  color: var(--muted);
  margin: 0;
}
.essay-arrow {
  font-family: var(--serif);
  font-size: 24px;
  color: var(--subtle);
  transition: transform .25s ease, color .2s ease;
}
.essay a:hover .essay-title,
.essay a:hover .essay-arrow { color: var(--signal); }
.essay a:hover .essay-arrow { transform: translateX(6px); }

.essays-more {
  margin: 0 0 56px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.essays-more a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 4px;
}
.essays-more a:hover { color: var(--signal); border-bottom-color: var(--signal); }

.deck {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--rule);
  background: #fff;
  margin-top: 40px;
}
.deck-thumb {
  background: repeating-linear-gradient(135deg, #f0ecdf 0 8px, #eae6d7 8px 16px);
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  padding: 28px;
}
.deck-thumb-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #7a7467;
}
.deck-body { padding: 40px 48px; }
.deck-body .eyebrow { margin-bottom: 24px; }
.deck-body h3 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 36px;
  line-height: 1.08;
  letter-spacing: -.02em;
  margin: 0 0 20px;
}
.deck-body p {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.55;
  color: var(--muted);
  margin: 0 0 28px;
  max-width: 40ch;
}

/* ---------- Who ---------- */
.who {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  align-items: baseline;
}
.who .eyebrow { margin: 0; }
.who-body { max-width: 56ch; }
.who-body h2 { margin-bottom: 28px; }
.who-body p {
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.55;
  color: var(--muted);
  margin: 0 0 32px;
}
.who-body p em { font-style: italic; color: var(--ink-2); }
.who-links { display: flex; gap: 32px; flex-wrap: wrap; }
.who-links a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule-strong);
  padding: 4px 0;
}
.who-links a:hover { color: var(--signal); border-bottom-color: var(--signal); }

/* ---------- Contact ---------- */
.contact {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  align-items: baseline;
}
.contact .eyebrow { margin: 0; }
.contact-body { max-width: 56ch; }
.contact-body h2 { margin-bottom: 24px; }
.contact-body p {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.55;
  color: var(--muted);
  margin: 0 0 40px;
}
.contact-cta {
  display: flex;
  gap: 40px;
  align-items: center;
  flex-wrap: wrap;
}
.contact-email {
  font-family: var(--serif);
  font-style: italic;
  font-size: 18px;
  color: var(--ink-2);
}
.contact-email a { color: inherit; text-decoration: none; }
.contact-email b {
  font-weight: 400;
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 2px;
  transition: color .18s ease, border-color .18s ease;
}
.contact-email a:hover b { color: var(--signal); border-bottom-color: var(--signal); }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--ink);
  padding: 48px var(--gutter) 56px;
  margin-top: 40px;
}
.foot {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  align-items: flex-start;
}
.foot-mark { display: inline-block; margin-bottom: 14px; }
.foot-mark img { display: block; height: 48px; width: auto; }
.foot-note {
  font-family: var(--serif);
  font-size: 13px;
  color: var(--muted);
  font-style: italic;
  margin: 0 0 4px;
  max-width: 48ch;
}
.foot-colophon {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--subtle);
  margin: 0;
}
.foot-links { display: flex; gap: 24px; }
.foot-links a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-decoration: none;
}
.foot-links a:hover { color: var(--signal); }

/* =========================================================
   Responsive — tablet and below
   ========================================================= */

@media (max-width: 1024px) {
  :root { --gutter: 48px; }

  .hero { padding: 88px var(--gutter) 96px; }
  section.block { padding: 88px var(--gutter); }
  .pullquote { padding: 112px var(--gutter); }
  .credibility { padding: 56px var(--gutter); }

  .hero-grid { grid-template-columns: 1fr; gap: 64px; }
  .pulse { border-left: 0; padding-left: 0; }
  .pulse-label { padding-bottom: 12px; border-top: 1px solid var(--rule); padding-top: 16px; margin-bottom: 0; }

  .section-head { grid-template-columns: 1fr; gap: 28px; margin-bottom: 56px; }

  .cred-grid { grid-template-columns: 1fr; gap: 28px; }
  .cred-list { grid-template-columns: repeat(2, 1fr); gap: 20px; }

  .service { grid-template-columns: 60px 1fr; gap: 32px 28px; padding: 44px 0; }
  .service-meta { grid-column: 1 / -1; grid-template-columns: repeat(2, 1fr); gap: 18px; padding-top: 0; }

  .essay a { grid-template-columns: 100px 1fr auto; column-gap: 28px; padding: 28px 0; }

  .deck { grid-template-columns: 1fr; }
  .deck-thumb { min-height: 200px; padding: 22px; }
  .deck-body { padding: 32px 28px; }

  .who, .contact { grid-template-columns: 1fr; gap: 24px; }
}

/* =========================================================
   Responsive — mobile
   ========================================================= */

@media (max-width: 600px) {
  :root { --gutter: 24px; }
  body { font-size: 17px; }

  header {
    padding: 20px var(--gutter) 0;
    grid-template-columns: auto auto;
    gap: 16px;
  }
  .wordmark img { height: 40px; }
  .nav-meta { display: none; }
  .nav-links { gap: 14px; justify-self: end; }
  .nav-links a { font-size: 10px; letter-spacing: .12em; }
  .masthead-rule { margin-top: 18px; margin-left: var(--gutter); margin-right: var(--gutter); }

  .hero { padding: 56px var(--gutter) 72px; }
  h1.display { font-size: 48px; max-width: none; margin-bottom: 32px; }
  .lede { margin-bottom: 36px; }

  .cta-row { flex-direction: column; align-items: stretch; gap: 18px; }
  .btn { text-align: center; padding: 16px 22px; }
  .btn.ghost { align-self: center; padding: 4px 0; }

  .pulse { margin-top: 8px; }
  .stat { padding: 16px 14px 18px; min-height: 110px; gap: 10px; }
  .stat-num { font-size: 28px; }
  .stat-lbl { font-size: 13px; }
  .stat-lbl small { font-size: 9px; }

  section.block { padding: 64px var(--gutter); }
  .section-head { margin-bottom: 40px; gap: 20px; }
  .pullquote { padding: 80px var(--gutter); }

  .credibility { padding: 40px var(--gutter); }
  .cred-list { grid-template-columns: 1fr; gap: 14px; }

  .service { grid-template-columns: 1fr; gap: 16px; padding: 36px 0; }
  .service-num { font-size: 32px; margin-bottom: 8px; }
  .service h3 { font-size: 24px; }
  .service-meta { display: flex; flex-wrap: wrap; gap: 22px; padding-top: 12px; }
  .service-meta div b { font-size: 16px; }

  .essay a {
    display: block;
    padding: 24px 0;
  }
  .essay a:hover { padding-left: 0; }
  .essay-meta { display: block; margin-bottom: 8px; }
  .essay-title { font-size: 22px; }
  .essay-sub { font-size: 16px; }
  .essay-arrow { display: none; }

  .deck-thumb { min-height: 160px; padding: 18px; }
  .deck-body { padding: 28px 22px; }
  .deck-body h3 { font-size: 26px; }

  .who-body p, .contact-body p { font-size: 17px; }
  .who-links { flex-direction: column; gap: 14px; }
  .who-links a { align-self: flex-start; }

  .contact-cta { flex-direction: column; align-items: stretch; gap: 22px; }
  .contact-cta .btn.primary { width: 100%; }
  .contact-email { text-align: center; }

  footer { padding: 36px var(--gutter) 48px; }
  .foot { grid-template-columns: 1fr; gap: 24px; }
  .foot-mark img { height: 36px; }
  .foot-links { gap: 18px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition: none !important;
  }
}