/* DTMU LLC -- shared stylesheet
   Light, cool, AI-forward operating read. Sans display and body. No frameworks,
   no third-party assets, no JavaScript. */

:root {
  --paper: #f5f6f8;
  --paper-raised: #eceef1;
  --ink: #14161a;
  --ink-soft: #494f57;
  --accent: #7a2b22;
  --accent-ink: #5c1f19;
  --rule: #dde1e6;
  --max-width: 68ch;

  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
}

a {
  color: var(--accent-ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--accent);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2.4rem, 4.4vw + 1rem, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}

h2 {
  font-size: 1.55rem;
  margin: 0 0 0.7em;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.12rem;
  margin: 0 0 0.45em;
  letter-spacing: -0.005em;
}

p {
  margin: 0 0 1.1em;
  max-width: var(--max-width);
}

.eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin: 0 0 0.9em;
}

.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}

.header-inner {
  max-width: 68rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 1.1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}

.wordmark {
  display: grid;
  grid-template-columns: repeat(2, 1.05em);
  justify-items: center;
  row-gap: 0.08em;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 0.9;
  color: var(--accent-ink);
  text-decoration: none;
}

.wordmark:hover {
  color: var(--accent);
}

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.35rem;
  margin: 0;
  padding: 0;
  font-size: 0.98rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
  padding: 0.2em 0.05em;
}

.site-nav a:hover {
  color: var(--accent-ink);
}

.site-nav a[aria-current="page"] {
  color: var(--accent-ink);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

main {
  max-width: 68rem;
  margin: 0 auto;
  padding: 0 1.25rem 4.5rem;
}

.lede {
  font-size: 1.22rem;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: var(--max-width);
}

.rule {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 0;
}

section {
  margin-bottom: 3rem;
}

/* Hero */

.hero {
  padding: 4.5rem 0 3.25rem;
  max-width: 46rem;
}

.hero h1 {
  margin-bottom: 0.45em;
}

.hero .lede {
  margin-bottom: 1.6em;
}

/* Buttons */

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 0.75em 1.5em;
  border-radius: 3px;
  border: 1px solid var(--accent-ink);
}

.btn-primary {
  color: var(--paper);
  background: var(--accent-ink);
}

.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

/* legacy alias used on interior pages */
.button-link {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--paper);
  background: var(--accent-ink);
  border: 1px solid var(--accent-ink);
  padding: 0.75em 1.5em;
  text-decoration: none;
  border-radius: 3px;
  margin-top: 0.5em;
}

.button-link:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

/* Industry cards */

.industry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.industry-card {
  background: var(--paper-raised);
  border-top: 3px solid var(--accent);
  padding: 1.6rem 1.7rem 1.75rem;
}

.industry-card h3 {
  margin-bottom: 0.5em;
}

.industry-card p {
  color: var(--ink-soft);
  margin-bottom: 0;
  max-width: none;
}

/* Services grid (summary, on home page) */

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: 2.5rem;
}

.service-row {
  border-top: 1px solid var(--rule);
  padding: 1.5rem 0;
}

.service-row:nth-child(1),
.service-row:nth-child(2) {
  border-top: none;
}

.service-row h3 {
  margin-bottom: 0.4em;
}

.service-row p {
  color: var(--ink-soft);
  margin-bottom: 0;
  max-width: none;
}

.services-more {
  margin-top: 1.75rem;
}

/* How we work strip */

.how-we-work {
  background: var(--paper-raised);
  margin: 0 -1.25rem;
  padding: 2.75rem 1.25rem;
}

.how-we-work-inner {
  max-width: 68rem;
  margin: 0 auto;
}

.how-we-work h2 {
  margin-bottom: 1.4em;
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.how-item {
  padding: 0 1.5rem;
  border-left: 1px solid var(--rule);
  font-size: 1.03rem;
  color: var(--ink-soft);
}

.how-item:first-child {
  border-left: none;
  padding-left: 0;
}

.how-item p {
  margin: 0;
  max-width: none;
}

/* Closing CTA / callout */

.callout {
  background: var(--paper-raised);
  border-left: 4px solid var(--accent);
  padding: 1.6rem 1.8rem;
  margin: 2.25rem 0;
  max-width: var(--max-width);
}

.callout h2,
.contact-block h2 {
  margin-top: 0;
}

.callout p:last-child {
  margin-bottom: 0;
}

.contact-block {
  background: var(--paper-raised);
  border-left: 4px solid var(--accent);
  padding: 2rem 2rem 2.1rem;
  margin: 2rem 0;
  max-width: var(--max-width);
}

.contact-email {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  display: inline-block;
  margin: 0.3em 0 0.2em;
  color: var(--accent-ink);
  text-decoration-color: var(--accent);
}

.contact-email:hover {
  color: var(--accent);
}

/* Services detail page */

.practice-item {
  padding: 1.75rem 0;
  border-top: 1px solid var(--rule);
}

.practice-item:first-of-type {
  border-top: none;
}

.practice-item h2 {
  margin-top: 0;
}

.practice-links {
  list-style: none;
  padding: 0;
  margin: 1.4rem 0;
}

.practice-links li {
  padding: 0.5rem 0;
  border-top: 1px solid var(--rule);
}

.practice-links li:first-child {
  border-top: none;
}

.practice-links a {
  font-weight: 600;
  text-decoration: none;
}

.practice-links a:hover {
  text-decoration: underline;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--rule);
  background: var(--paper-raised);
}

.footer-inner {
  max-width: 68rem;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 2.25rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.footer-inner nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1.1rem;
  margin: 0 0 0.9rem;
  padding: 0;
}

.footer-inner nav a {
  color: var(--ink-soft);
  text-decoration: none;
}

.footer-inner nav a:hover {
  color: var(--accent-ink);
  text-decoration: underline;
}

.footer-meta {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
}

.footer-meta a {
  color: var(--ink-soft);
}

@media (max-width: 56em) {
  .how-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem 1.5rem;
  }

  .how-item {
    border-left: none;
    padding-left: 0;
  }
}

@media (max-width: 40em) {
  main {
    padding: 0 1rem 3rem;
  }

  .header-inner {
    padding: 1.25rem 1rem 1rem;
  }

  .hero {
    padding: 2.75rem 0 2.25rem;
  }

  .industry-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .service-row:nth-child(2) {
    border-top: 1px solid var(--rule);
  }

  .how-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .how-we-work {
    margin: 0 -1rem;
    padding: 2.25rem 1rem;
  }

  .contact-block {
    padding: 1.5rem 1.25rem;
  }
}