/* ------------------------------------------------------------------
   Third Level IT — site stylesheet
   Palette: warm paper / ink / deep harbor navy / oxide rust accent
   Type: Fraunces (display) · Inter (text) · IBM Plex Mono (detail)
   ------------------------------------------------------------------ */

:root {
  --paper:      #F4F1EA;
  --paper-deep: #ECE7DC;
  --ink:        #1B1D1E;
  --ink-soft:   #494E52;
  --ink-faint:  #6E7478;
  --navy:       #0F1B24;
  --navy-2:     #16242F;
  --rust:       #9C4221;
  --rust-deep:  #7E3218;
  --copper:     #D0906A;
  --line:       rgba(27, 29, 30, 0.16);
  --line-soft:  rgba(27, 29, 30, 0.09);
  --line-dark:  rgba(244, 241, 234, 0.16);

  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "Inter", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono:  "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --wrap: 1160px;
  --gutter: clamp(1.25rem, 4.5vw, 3rem);
}

/* ---------- reset ---------- */

*, *::before, *::after { box-sizing: border-box; }

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

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

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "kern", "liga";
  text-rendering: optimizeLegibility;
}

img, video { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 560;
  line-height: 1.12;
  letter-spacing: -0.012em;
  margin: 0 0 1rem;
  text-wrap: balance;
}

h1 { font-size: clamp(2.375rem, 5.6vw, 3.9rem); }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.55rem); line-height: 1.25; }
h4 { font-size: 1.125rem; line-height: 1.35; }

p { margin: 0 0 1.1rem; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--rust); }

::selection { background: var(--rust); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--rust);
  outline-offset: 3px;
  border-radius: 1px;
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: var(--paper);
  padding: 0.6rem 1rem; z-index: 200; text-decoration: none;
}
.skip-link:focus { left: 0; color: var(--paper); }

/* ---------- layout primitives ---------- */

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

.section { padding-block: clamp(3.5rem, 9vw, 6.5rem); }
.section-tight { padding-block: clamp(2.5rem, 6vw, 4rem); }

.rule-top { border-top: 1px solid var(--line); }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rust);
  display: block;
  margin-bottom: 1.1rem;
}

.dark .eyebrow { color: var(--copper); }

.lede {
  font-size: clamp(1.125rem, 1.9vw, 1.3rem);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 34em;
}

.muted { color: var(--ink-soft); }

/* split: asymmetric heading/content pairing */
.split { display: grid; gap: 1.75rem clamp(2rem, 5vw, 4.5rem); }
@media (min-width: 860px) {
  .split { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; }
  .split > .split-head { position: sticky; top: 6.5rem; }
  .split-rev { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
}

/* ---------- header ---------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-soft);
}

.site-head .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.25rem;
  position: relative;
}

.wordmark {
  font-family: var(--serif);
  font-size: 1.22rem;
  font-weight: 620;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
  color: var(--ink);
}
.wordmark:hover { color: var(--ink); }
.wordmark .tld { color: var(--rust); }

.site-nav { display: flex; align-items: center; gap: clamp(1.1rem, 2.4vw, 2rem); }

.site-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 0.35rem 0;
  border-bottom: 1px solid transparent;
}
.site-nav a:hover { color: var(--ink); border-bottom-color: var(--rust); }
.site-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--rust); }

.site-nav .nav-cta {
  border: 1px solid var(--ink);
  padding: 0.5rem 1.05rem;
  color: var(--ink);
  border-radius: 2px;
  transition: background 0.15s ease, color 0.15s ease;
}
.site-nav .nav-cta:hover { background: var(--ink); color: var(--paper); border-bottom-color: var(--ink); }

.nav-toggle {
  display: none;
  appearance: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.45rem 0.7rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  cursor: pointer;
}

@media (max-width: 799px) {
  .nav-toggle { display: inline-block; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem var(--gutter) 1.5rem;
    gap: 0.85rem;
  }
  .site-nav.open { display: flex; }
  .site-nav a { font-size: 1.05rem; }
  .site-nav .nav-cta { margin-top: 0.35rem; }
}

/* ---------- buttons ---------- */

.btn-row { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 1.9rem; }

.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 550;
  text-decoration: none;
  padding: 0.8rem 1.6rem;
  border-radius: 2px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  cursor: pointer;
}
.btn:hover { background: var(--rust-deep); border-color: var(--rust-deep); color: var(--paper); }

.btn-line { background: transparent; color: var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--paper); }

.dark .btn, .band .btn { background: var(--paper); border-color: var(--paper); color: var(--navy); }
.dark .btn:hover, .band .btn:hover { background: var(--copper); border-color: var(--copper); color: var(--navy); }
.dark .btn-line, .band .btn-line { background: transparent; border-color: var(--line-dark); color: var(--paper); }
.dark .btn-line:hover, .band .btn-line:hover { background: var(--paper); border-color: var(--paper); color: var(--navy); }

.text-link {
  font-weight: 550;
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--rust);
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}
.text-link::after { content: "\2009\2192"; }
.text-link:hover { color: var(--rust-deep); }
.dark .text-link { color: var(--copper); }
.dark .text-link:hover { color: var(--paper); }

/* ---------- hero ---------- */

.hero { padding-block: clamp(3.5rem, 10vw, 7.5rem) clamp(3rem, 8vw, 5.5rem); }

.hero-grid { display: grid; gap: 2.25rem clamp(2.5rem, 6vw, 5rem); }
@media (min-width: 900px) {
  .hero-grid { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); align-items: end; }
}

.hero h1 { margin-bottom: 0; max-width: 13em; }
.hero h1 em { font-style: italic; font-weight: 480; color: var(--rust-deep); }

.hero-side { border-left: 2px solid var(--rust); padding-left: 1.4rem; }
@media (max-width: 899px) { .hero-side { max-width: 34em; } }

/* credential strip */
.cred-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cred-strip ul {
  list-style: none;
  margin: 0;
  padding: 1.1rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 2.5rem;
}
.cred-strip li {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  white-space: nowrap;
}
.cred-strip li::before { content: "— "; color: var(--rust); }

/* ---------- numbered service rows ---------- */

.row-list { border-top: 1px solid var(--line); margin-top: 2.5rem; }

.svc-row {
  display: grid;
  gap: 0.4rem 2rem;
  padding: 1.9rem 0 2.1rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 780px) {
  .svc-row { grid-template-columns: 3.5rem minmax(0, 4fr) minmax(0, 6fr) 2.5rem; align-items: baseline; }
}

.svc-row .num {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
}

.svc-row h3 { margin: 0; transition: color 0.15s ease; }
.svc-row p { margin: 0; color: var(--ink-soft); max-width: 36em; }

.svc-row .go {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--ink-faint);
  justify-self: end;
  transition: transform 0.18s ease, color 0.18s ease;
  display: none;
}
@media (min-width: 780px) { .svc-row .go { display: block; } }

a.svc-row:hover h3 { color: var(--rust); }
a.svc-row:hover .go { color: var(--rust); transform: translateX(4px); }
a.svc-row:hover { color: inherit; }

/* framework tags */
.tags { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.9rem; padding: 0; list-style: none; }
.tags li {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 0.28rem 0.6rem;
  border-radius: 2px;
  color: var(--ink-soft);
  white-space: nowrap;
}
.dark .tags li { border-color: var(--line-dark); color: rgba(244, 241, 234, 0.75); }

/* ---------- dark sections ---------- */

.dark {
  background: var(--navy);
  color: rgba(244, 241, 234, 0.92);
}
.dark h1, .dark h2, .dark h3, .dark h4 { color: var(--paper); }
.dark .muted, .dark .lede { color: rgba(244, 241, 234, 0.68); }
.dark ::selection { background: var(--copper); color: var(--navy); }

/* industry entries on dark ground */
.ind-list { border-top: 1px solid var(--line-dark); margin-top: 2.5rem; }

.ind-row {
  display: grid;
  gap: 0.75rem 2rem;
  padding: 2.1rem 0;
  border-bottom: 1px solid var(--line-dark);
  text-decoration: none;
  color: inherit;
}
@media (min-width: 820px) {
  .ind-row { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); align-items: start; }
}
.ind-row h3 { margin-bottom: 0.35rem; transition: color 0.15s ease; }
.ind-row .ind-kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
}
.ind-row p { color: rgba(244, 241, 234, 0.72); margin: 0; max-width: 38em; }
a.ind-row:hover h3 { color: var(--copper); }
a.ind-row:hover { color: inherit; }

/* light-ground variant for industries index */
.ind-list-light { border-top: 1px solid var(--line); margin-top: 2.5rem; }
.ind-list-light .ind-row { border-bottom-color: var(--line); }
.ind-list-light .ind-row p { color: var(--ink-soft); }
.ind-list-light .ind-kicker { color: var(--rust); }
.ind-list-light a.ind-row:hover h3 { color: var(--rust); }

/* ---------- founder / quote ---------- */

.founder-card {
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--paper-deep);
}

.founder-card .sig {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.05rem;
  margin-top: 1.4rem;
}
.founder-card .sig span {
  display: block;
  font-family: var(--mono);
  font-style: normal;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 0.3rem;
}

blockquote.pull {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.6vw, 1.75rem);
  font-weight: 480;
  line-height: 1.4;
  letter-spacing: -0.01em;
}
blockquote.pull::before { content: "\201C"; color: var(--rust); }
blockquote.pull::after { content: "\201D"; color: var(--rust); }

/* ---------- step list (how engagements run) ---------- */

.steps { list-style: none; margin: 2.25rem 0 0; padding: 0; counter-reset: step; }
.steps > li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr);
  gap: 1.25rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}
.steps > li::before {
  content: "0" counter(step);
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--rust);
  padding-top: 0.3rem;
}
.steps h4 { margin-bottom: 0.35rem; }
.steps p { color: var(--ink-soft); margin: 0; max-width: 38em; }

.dark .steps > li { border-top-color: var(--line-dark); }
.dark .steps > li::before { color: var(--copper); }
.dark .steps p { color: rgba(244, 241, 234, 0.7); }

/* ---------- detail / definition lists ---------- */

.spec-list { margin: 1.75rem 0 0; padding: 0; list-style: none; }
.spec-list > li {
  padding: 1.1rem 0;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 0.15rem 1.75rem;
}
@media (min-width: 700px) {
  .spec-list > li { grid-template-columns: minmax(0, 3fr) minmax(0, 7fr); }
}
.spec-list .k { font-weight: 600; font-size: 0.98rem; }
.spec-list .v { color: var(--ink-soft); font-size: 0.98rem; }
.dark .spec-list > li { border-top-color: var(--line-dark); }
.dark .spec-list .v { color: rgba(244, 241, 234, 0.7); }

/* prose block */
.prose { max-width: 42em; }
.prose ul { padding-left: 1.2rem; margin: 0 0 1.1rem; }
.prose li { margin-bottom: 0.45rem; }
.prose li::marker { color: var(--rust); }
.prose strong { font-weight: 620; }

/* ---------- page hero (interior pages) ---------- */

.page-head { padding-block: clamp(3rem, 8vw, 5.5rem) clamp(2.25rem, 6vw, 4rem); }
.page-head h1 { max-width: 15em; }
.page-head .lede { margin-top: 1.4rem; }

.crumb {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 1.4rem;
}
.crumb a { text-decoration: none; color: var(--ink-faint); }
.crumb a:hover { color: var(--rust); }
.crumb span::before { content: " / "; color: var(--ink-faint); }

/* ---------- callout band ---------- */

.band {
  background: var(--navy);
  color: var(--paper);
}
.band .wrap {
  display: grid;
  gap: 1.5rem 3rem;
  padding-block: clamp(3rem, 7vw, 4.5rem);
}
@media (min-width: 860px) {
  .band .wrap { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); align-items: center; }
  .band .band-cta { justify-self: end; }
}
.band h2 { margin-bottom: 0.5rem; color: var(--paper); }
.band p { color: rgba(244, 241, 234, 0.7); margin: 0; max-width: 36em; }

/* ---------- contact ---------- */

.contact-grid { display: grid; gap: 3rem clamp(2.5rem, 6vw, 5rem); }
@media (min-width: 880px) {
  .contact-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
}

.contact-meta { list-style: none; margin: 2rem 0 0; padding: 0; }
.contact-meta li {
  padding: 0.9rem 0;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1.5rem;
  align-items: baseline;
}
.contact-meta .k {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  min-width: 6.5rem;
}
.contact-meta a { text-decoration: none; font-weight: 550; }
.contact-meta a:hover { color: var(--rust); }

form.lead-form { display: grid; gap: 1.1rem; }
@media (min-width: 620px) {
  form.lead-form { grid-template-columns: 1fr 1fr; }
  form.lead-form .full { grid-column: 1 / -1; }
}

.field label {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 0.45rem;
}
.field label .req { color: var(--rust); }

.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--ink);
  background: #FDFCF9;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.75rem 0.9rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field textarea { resize: vertical; min-height: 9rem; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--rust);
  box-shadow: 0 0 0 3px rgba(156, 66, 33, 0.14);
}

.form-note { font-size: 0.85rem; color: var(--ink-faint); margin-top: 0.25rem; }

.flash {
  border: 1px solid var(--line);
  border-left: 3px solid var(--rust);
  background: var(--paper-deep);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  font-size: 0.98rem;
}
.flash.ok { border-left-color: #2F6B3A; }

/* honeypot */
.hp-field { position: absolute; left: -9999px; height: 0; overflow: hidden; }

/* ---------- footer ---------- */

.site-foot {
  background: var(--navy);
  color: rgba(244, 241, 234, 0.75);
  font-size: 0.95rem;
}
.site-foot .wrap { padding-block: clamp(3rem, 7vw, 4.5rem) 2rem; }

.foot-grid { display: grid; gap: 2.5rem clamp(2rem, 5vw, 4.5rem); }
@media (min-width: 820px) {
  .foot-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 3fr); }
}

.site-foot .wordmark { color: var(--paper); font-size: 1.3rem; }
.site-foot .wordmark .tld { color: var(--copper); }

.foot-blurb { margin-top: 1rem; max-width: 30em; color: rgba(244, 241, 234, 0.6); }

.foot-head {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(244, 241, 234, 0.45);
  margin: 0 0 1rem;
}

.site-foot ul { list-style: none; margin: 0; padding: 0; }
.site-foot ul li { margin-bottom: 0.6rem; }
.site-foot a { color: rgba(244, 241, 234, 0.8); text-decoration: none; }
.site-foot a:hover { color: var(--copper); }

.foot-line {
  border-top: 1px solid var(--line-dark);
  margin-top: 3rem;
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  justify-content: space-between;
  font-size: 0.82rem;
  color: rgba(244, 241, 234, 0.45);
}
.foot-line .creds { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; }

/* ---------- utilities ---------- */

.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.center-narrow { max-width: 44em; }