/* ============================================================
   DataRegimen — Editorial system
   Fonts: Fraunces (display serif) + IBM Plex Sans (body) + IBM Plex Mono (accent)
   ============================================================ */

:root {
  /* palette */
  --bg: #F4EFE6;            /* warm paper */
  --bg-alt: #ECE5D6;        /* darker paper */
  --ink: #0B1220;           /* near-black navy */
  --ink-soft: #2A3140;
  --muted: #5B6371;
  --rule: #D6CDB9;          /* hairline */
  --accent: #A1462E;        /* oxblood/sienna */
  --accent-hover: #823621;
  --highlight: #E8DCC0;     /* soft highlight */
  --white: #FFFFFF;
  --success: #2D6A4F;
  --error: #9B2C2C;

  /* type */
  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* scale */
  --container: 1200px;
  --gutter: clamp(1rem, 3vw, 2rem);
  --radius: 4px;
  --radius-lg: 8px;

  /* motion */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

* { box-sizing: border-box; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  font-family: var(--sans);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }

a {
  color: var(--ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color .2s var(--ease);
}
a:hover { color: var(--accent); }

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; top: -100px; left: 1rem;
  background: var(--ink); color: var(--bg);
  padding: .75rem 1rem; border-radius: var(--radius);
  z-index: 999; font-weight: 500;
}
.skip-link:focus { top: 1rem; color: var(--bg); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-style: normal;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 .5em;
  color: var(--ink);
  font-variation-settings: "opsz" 80;
}

h1 {
  font-size: clamp(2.6rem, 6vw + 0.5rem, 5.5rem);
  font-weight: 300;
}
h1 .accent { font-style: italic; color: var(--accent); font-weight: 400; }

h2 {
  font-size: clamp(1.9rem, 3vw + 0.5rem, 3rem);
  font-weight: 400;
}

h3 {
  font-size: clamp(1.15rem, 1vw + 0.6rem, 1.4rem);
  font-weight: 500;
  line-height: 1.2;
}

p { margin: 0 0 1rem; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.mono { font-family: var(--mono); font-size: .85rem; color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .95rem 1.5rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s var(--ease);
  line-height: 1;
}
.btn-primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn-ghost:hover {
  background: var(--ink);
  color: var(--bg);
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(120%) blur(8px);
  -webkit-backdrop-filter: saturate(120%) blur(8px);
  border-bottom: 1px solid var(--rule);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
}
.brand {
  display: inline-flex; align-items: center; gap: .6rem;
  text-decoration: none; color: var(--ink);
}
.brand-mark { color: var(--ink); }
.brand-name {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.brand-name em { font-style: italic; color: var(--accent); font-weight: 400; }

.primary-nav ul {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.primary-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
}
.primary-nav a:hover { color: var(--accent); }
.primary-nav .nav-cta {
  background: var(--ink);
  color: var(--bg);
  padding: .55rem 1rem;
  border-radius: var(--radius);
}
.primary-nav .nav-cta:hover { background: var(--accent); color: #fff; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle .bar {
  width: 18px; height: 1.5px;
  background: var(--ink);
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .bar:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  padding-block: clamp(3rem, 8vw, 7rem) clamp(3rem, 6vw, 5rem);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.25;
  mask-image: radial-gradient(circle at 70% 30%, black 0%, transparent 65%);
  -webkit-mask-image: radial-gradient(circle at 70% 30%, black 0%, transparent 65%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
  position: relative;
}
.hero-copy h1 {
  margin-top: .5rem;
}
.lede {
  font-size: clamp(1.05rem, 1vw + 0.7rem, 1.25rem);
  color: var(--ink-soft);
  max-width: 38ch;
  margin-block: 1.5rem 2rem;
}
.hero-cta {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
}
.hero-stats div { margin: 0; }
.hero-stats dt {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 1.5vw + 0.5rem, 1.75rem);
  font-weight: 400;
  font-style: italic;
  color: var(--accent);
  margin-bottom: .25rem;
}
.hero-stats dd {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.4;
}

.hero-card {
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero-card-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1.25rem;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.hero-card .tag {
  background: var(--accent); color: #fff;
  padding: .25rem .55rem; border-radius: 2px;
}
.hero-card .mono { color: rgba(244, 239, 230, 0.6); }
.hero-card h2 {
  color: var(--bg);
  font-size: 1.5rem;
  margin-bottom: .75rem;
  font-weight: 400;
}
.hero-card p {
  color: rgba(244, 239, 230, 0.75);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}
.check-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  gap: .5rem;
}
.check-list li {
  font-size: 0.9rem;
  color: var(--bg);
  padding-left: 1.5rem;
  position: relative;
}
.check-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--mono);
}
.card-link {
  display: inline-block;
  color: var(--bg);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}
.card-link:hover { color: var(--accent); }
.card-grid {
  position: absolute;
  inset: -20% -20% auto auto;
  width: 60%;
  height: 60%;
  background-image:
    linear-gradient(rgba(244, 239, 230, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 239, 230, 0.06) 1px, transparent 1px);
  background-size: 30px 30px;
  z-index: -1;
  border-radius: 50%;
}

/* ---------- Trust strip ---------- */
.trust {
  border-block: 1px solid var(--rule);
  background: var(--bg-alt);
  padding-block: 1.5rem;
}
.trust-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.trust-label {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}
.industries {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; gap: 2rem;
  flex-wrap: wrap;
}
.industries li {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--ink-soft);
}

/* ---------- Section heads ---------- */
.section-head {
  max-width: 50rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-sub {
  font-size: 1.1rem;
  color: var(--muted);
  margin-top: .5rem;
  max-width: 45ch;
}

/* ---------- Services ---------- */
.services { padding-block: clamp(4rem, 8vw, 7rem); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.service {
  padding: 2rem;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: transparent;
  transition: background .2s var(--ease);
}
.service:hover { background: var(--bg-alt); }
.service-num {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--accent);
  margin-bottom: 1rem;
}
.service h3 { margin-bottom: .75rem; }
.service p {
  color: var(--ink-soft);
  font-size: .98rem;
  margin-bottom: 1rem;
}
.service ul {
  list-style: none;
  margin: 0; padding: 0;
  border-top: 1px dashed var(--rule);
  padding-top: 1rem;
}
.service ul li {
  font-size: 0.85rem;
  color: var(--muted);
  padding: .25rem 0;
  font-family: var(--mono);
}
.service ul li::before {
  content: "— ";
  color: var(--accent);
}

/* ---------- Approach ---------- */
.approach {
  padding-block: clamp(4rem, 8vw, 7rem);
  background: var(--ink);
  color: var(--bg);
}
.approach h2, .approach .eyebrow { color: var(--bg); }
.approach .eyebrow { color: rgba(244, 239, 230, 0.7); }
.approach .section-sub { color: rgba(244, 239, 230, 0.7); }

.steps {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid rgba(244, 239, 230, 0.18);
  counter-reset: step;
}
.steps li {
  padding: 2rem 1.5rem 2rem 0;
  border-right: 1px solid rgba(244, 239, 230, 0.12);
}
.steps li:last-child { border-right: none; }
.steps li:not(:last-child) { padding-right: 1.5rem; }
.steps li:not(:first-child) { padding-left: 1.5rem; }

.step-num {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
}
.steps h3 {
  color: var(--bg);
  font-size: 1.5rem;
  font-style: italic;
  font-weight: 400;
}
.steps p {
  color: rgba(244, 239, 230, 0.7);
  font-size: 0.95rem;
}

/* ---------- Outcomes ---------- */
.outcomes { padding-block: clamp(4rem, 8vw, 7rem); }
.outcomes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.outcomes-grid > div { padding-top: 0; }
.metrics {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.metrics li {
  padding: 1.5rem;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.metric-num {
  font-family: var(--serif);
  font-size: clamp(2.25rem, 3vw + 0.5rem, 3rem);
  font-weight: 300;
  font-style: italic;
  color: var(--accent);
  margin: 0 0 .25rem;
  line-height: 1;
}
.metric-label {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.4;
}

.pull-quote {
  grid-column: 1 / -1;
  margin: 2rem 0 0;
  padding: 2.5rem 0 0;
  border-top: 1px solid var(--rule);
}
.pull-quote blockquote {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2vw + 0.5rem, 2rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.25;
  color: var(--ink);
  max-width: 30ch;
}
.pull-quote blockquote p { margin: 0; }
.pull-quote figcaption {
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--muted);
}

/* ---------- FAQ ---------- */
.faq {
  padding-block: clamp(4rem, 8vw, 7rem);
  background: var(--bg-alt);
}
.faq-list {
  max-width: 50rem;
  border-top: 1px solid var(--rule);
}
.faq details {
  border-bottom: 1px solid var(--rule);
  padding: 1.25rem 0;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--serif);
  font-size: clamp(1.1rem, 1vw + 0.6rem, 1.35rem);
  font-weight: 400;
  color: var(--ink);
  padding-right: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 1.5rem;
  color: var(--accent);
  transition: transform .25s var(--ease);
  line-height: 1;
}
.faq details[open] summary::after {
  content: "−";
}
.faq details p {
  margin-top: 1rem;
  color: var(--ink-soft);
  font-size: 1rem;
  max-width: 60ch;
}

/* ---------- Contact ---------- */
.contact {
  padding-block: clamp(4rem, 8vw, 7rem);
  background: var(--ink);
  color: var(--bg);
}
.contact h2, .contact .eyebrow { color: var(--bg); }
.contact .eyebrow { color: rgba(244, 239, 230, 0.7); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.contact-copy p { color: rgba(244, 239, 230, 0.75); font-size: 1.05rem; }

.contact-meta {
  list-style: none; margin: 2.5rem 0 0; padding: 0;
  display: grid; gap: 1rem;
}
.contact-meta li {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid rgba(244, 239, 230, 0.18);
  font-size: 0.95rem;
}
.contact-meta li:last-child { border-bottom: 1px solid rgba(244, 239, 230, 0.18); }
.meta-label {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, 0.6);
}
.contact-meta a {
  color: var(--bg);
  text-decoration: underline;
  text-decoration-color: var(--accent);
}
.contact-meta a:hover { color: var(--accent); }

/* Form */
.contact-form {
  background: var(--bg);
  color: var(--ink);
  padding: 2rem;
  border-radius: var(--radius-lg);
  display: grid;
  gap: 1rem;
}
.form-row { display: grid; gap: .35rem; }
.form-row label {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.form-row label span { color: var(--accent); }
.contact-form input,
.contact-form select,
.contact-form textarea {
  font-family: var(--sans);
  font-size: 1rem;
  padding: .75rem .85rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
  width: 100%;
}
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}
.contact-form input[aria-invalid="true"],
.contact-form textarea[aria-invalid="true"] {
  border-color: var(--error);
}
.form-submit {
  margin-top: .5rem;
  justify-self: start;
}
.form-status {
  margin: 0;
  font-size: 0.9rem;
  min-height: 1.2rem;
}
.form-status.is-success { color: var(--success); }
.form-status.is-error { color: var(--error); }
.form-fine {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--rule);
  padding-block: 3rem 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2rem;
}
.footer-brand .brand-name {
  font-size: 1.5rem;
  display: block;
  margin-bottom: .5rem;
}
.footer-brand p {
  color: var(--muted);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1rem;
  margin: 0;
}
.footer-h {
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  margin: 0 0 1rem;
}
.site-footer nav ul {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: .5rem;
}
.site-footer nav a {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.site-footer nav a:hover { color: var(--accent); }
.footer-meta a {
  display: block;
  text-decoration: none;
  color: var(--ink);
  font-size: 0.95rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  width: max-content;
}
.muted { color: var(--muted); font-size: 0.8rem; margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid,
  .outcomes-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps li:nth-child(2) { border-right: none; }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .pull-quote { grid-column: 1; }
  .metrics { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav-toggle {
    display: inline-flex;
  }
  .primary-nav {
    position: absolute;
    inset: 100% 0 auto 0;
    background: var(--bg);
    border-bottom: 1px solid var(--rule);
    border-top: 1px solid var(--rule);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    transition: transform .25s var(--ease), opacity .2s var(--ease);
  }
  .primary-nav.is-open {
    transform: scaleY(1);
    opacity: 1;
  }
  .primary-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem var(--gutter);
  }
  .primary-nav li {
    border-bottom: 1px solid var(--rule);
  }
  .primary-nav li:last-child { border-bottom: none; }
  .primary-nav a {
    display: block;
    padding: 1rem 0;
  }
  .primary-nav .nav-cta {
    margin-top: .75rem;
    padding: 1rem;
    text-align: center;
  }

  .hero-stats { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .steps li { border-right: none; border-bottom: 1px solid rgba(244, 239, 230, 0.12); padding: 1.5rem 0; }
  .steps li:not(:first-child) { padding-left: 0; }
  .metrics { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-meta li { grid-template-columns: 1fr; gap: .15rem; }
  .contact-form { padding: 1.5rem; }
}

/* Touch targets */
@media (pointer: coarse) {
  .btn, .primary-nav a, .site-footer nav a { min-height: 44px; }
}

/* High contrast support */
@media (prefers-contrast: more) {
  :root {
    --muted: #2A3140;
    --rule: #0B1220;
  }
}

/* Print */
@media print {
  .site-header, .site-footer, .hero-card, .nav-toggle, .hero-cta { display: none; }
  body { background: white; color: black; }
  a { color: black; text-decoration: underline; }
}