/* ============================================================
   Ridgeline Labs — Homepage
   Recreated from the locked design system (Geist + Geist Mono).
   Surface cadence: dark hero -> dark brief -> bone services ->
   deep-bone process -> bone qualifying -> bone contact -> dark footer.
   Terracotta budget (5): hero ridge, services hairline, Capture card
   arrow, contact hairline, footer ridge.
   ============================================================ */

:root {
  --accent: #c5642e;
  --labs-gray: #98968f;

  --font-sans: "Geist", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1440px;
  --gutter: 96px;
  --section-pad: 128px;

  /* Fluid type: scales between the 390px and 1440px artboard targets. */
  --fs-hero: clamp(56px, calc(32px + 6.1vw), 120px);
  --fs-h2: clamp(32px, calc(23px + 2.3vw), 56px);
  --fs-contact: clamp(40px, calc(25px + 3.8vw), 80px);
  --fs-lead: clamp(17px, calc(15px + 0.48vw), 22px);
  --fs-brief-body: clamp(16px, calc(14.9px + 0.29vw), 19px);
  --fs-services-intro: clamp(16px, calc(14.5px + 0.38vw), 20px);
  --fs-step-title: clamp(24px, calc(22.5px + 0.38vw), 28px);
  --fs-step-body: clamp(15px, calc(14.6px + 0.1vw), 16px);
  --fs-qual: clamp(16px, calc(15.3px + 0.19vw), 18px);
  --fs-contact-email: clamp(20px, calc(17px + 0.76vw), 28px);
}

/* ---------- Surfaces: each sets the local palette tokens ---------- */
.surface-dark {
  --bg: #1c1f21;
  --fg: #ede7da;
  --fg-dim: rgba(237, 231, 218, 0.8);
  --fg-quiet: rgba(237, 231, 218, 0.55);
  --fg-faint: rgba(237, 231, 218, 0.4);
  --divider: rgba(237, 231, 218, 0.14);
  --border: rgba(237, 231, 218, 0.14);
  --btn-bg: #ede7da;
  --btn-fg: #1c1f21;
  background: var(--bg);
  color: var(--fg);
}
.surface-bone {
  --bg: #ede7da;
  --fg: #1c1f21;
  --fg-dim: #3a3d3f;
  --fg-quiet: #6b6e70;
  --fg-faint: #98968f;
  --divider: rgba(0, 0, 0, 0.1);
  --border: #c9c4b7;
  --btn-bg: #1c1f21;
  --btn-fg: #ede7da;
  background: var(--bg);
  color: var(--fg);
}
.surface-deep {
  --bg: #e3dccb;
  --fg: #1c1f21;
  --fg-dim: #3a3d3f;
  --fg-quiet: #6b6e70;
  --fg-faint: #98968f;
  --divider: rgba(0, 0, 0, 0.1);
  --border: #c9c4b7;
  --btn-bg: #1c1f21;
  --btn-fg: #ede7da;
  background: var(--bg);
  color: var(--fg);
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 24px; }

body {
  margin: 0;
  background: #1c1f21;
  font-family: var(--font-sans);
  color: #1c1f21;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, p, ul { margin: 0; }
ul { list-style: none; padding: 0; }
a { color: inherit; }

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

.section { padding-block: var(--section-pad); }

/* ---------- Shared brand pieces ---------- */
.wordmark {
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--fg);
}
.wordmark .labs { font-weight: 400; color: var(--labs-gray); }

.ridge { display: block; }
.ridge path { stroke: var(--accent); fill: none; }

/* Hero ridge: shorter than the headline, left-aligned signature. */
.ridge-hero { width: clamp(200px, 32vw, 460px); height: auto; }
.ridge-hero path { stroke-width: 4; }

/* Footer ridge under the wordmark. */
.ridge-footer { width: 92px; height: auto; }
.ridge-footer path { stroke-width: 2; }

/* Mono framing label: NN · LABEL */
.label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-quiet);
  display: flex;
  align-items: center;
  gap: 14px;
}
.label .dot {
  width: 6px;
  height: 6px;
  background: var(--fg-faint);
  border-radius: 50%;
  flex: 0 0 auto;
}

/* Buttons */
.btn {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: -0.005em;
  line-height: 1;
  padding: 18px 28px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bg);
  border-radius: 2px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn:hover { opacity: 0.88; }
.btn .arrow { font-family: var(--font-mono); font-weight: 400; }

/* ============================================================
   HERO — dark
   ============================================================ */
.hero { display: flex; flex-direction: column; }
.hero .container {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  overflow: hidden;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 40px;
}
.site-header .wordmark { font-size: 22px; }

.site-nav {
  display: flex;
  gap: 40px;
  align-items: center;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: -0.005em;
}
.site-nav a { color: var(--fg-dim); text-decoration: none; }
.site-nav a:hover { color: var(--fg); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  padding: 6px 0;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span { width: 22px; height: 1.5px; background: var(--fg); display: block; }

.hero-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: 40px;
}
.hero-meta-top {
  margin-bottom: 48px;
}
.hero h1 {
  font-weight: 600;
  font-size: var(--fs-hero);
  letter-spacing: -0.035em;
  line-height: 0.98;
  color: var(--fg);
  max-width: 1100px;
}
.hero .ridge-hero { margin-top: 28px; }
.hero-sub {
  margin-top: 44px;
  font-size: var(--fs-lead);
  line-height: 1.5;
  color: var(--fg-dim);
  max-width: 640px;
  font-weight: 400;
}
.hero-cta { margin-top: 48px; }

.hero-meta-bottom {
  padding-bottom: 40px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-faint);
}

/* ============================================================
   BRIEF — dark, tighter
   ============================================================ */
.brief { border-top: 1px solid var(--divider); }
.brief h2 {
  margin: 48px 0 56px;
  font-weight: 500;
  font-size: var(--fs-h2);
  letter-spacing: -0.028em;
  line-height: 1.08;
  max-width: 1100px;
}
.brief-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 64px;
  row-gap: 24px;
  max-width: 1200px;
  font-size: var(--fs-brief-body);
  line-height: 1.6;
  color: var(--fg-dim);
}

/* ============================================================
   SERVICES — bone, three cards
   ============================================================ */
.hairline {
  height: 1px;
  background: var(--accent);
}
.services .hairline {
  width: 64px;
  margin-bottom: 24px;
}
.services h2 {
  margin: 32px 0 16px;
  font-weight: 500;
  font-size: var(--fs-h2);
  letter-spacing: -0.028em;
  line-height: 1.08;
  max-width: 900px;
}
.services-intro {
  margin-bottom: 80px;
  font-size: var(--fs-services-intro);
  line-height: 1.5;
  color: var(--fg-quiet);
  max-width: 640px;
}
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-height: 460px;
}
.card-ix {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.card h3 {
  font-weight: 500;
  font-size: 32px;
  letter-spacing: -0.018em;
  line-height: 1.15;
}
.card-blurb {
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg-dim);
}
.card-items { display: flex; flex-direction: column; gap: 10px; }
.card-items li {
  font-size: 14px;
  color: var(--fg-quiet);
  padding-left: 18px;
  position: relative;
}
.card-items li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--fg-faint);
}
.card-foot {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 500;
  font-size: 14px;
  color: var(--fg);
}
.card-foot .arrow { font-family: var(--font-mono); color: var(--fg-faint); }
.card-foot .arrow.is-accent { color: var(--accent); }

/* ============================================================
   PROCESS — deep bone, three steps
   ============================================================ */
.process h2 {
  margin: 32px 0 80px;
  font-weight: 500;
  font-size: var(--fs-h2);
  letter-spacing: -0.028em;
  line-height: 1.08;
  max-width: 1100px;
}
.process h2 .quiet { color: var(--fg-quiet); }
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 64px;
}
.step {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--fg-faint);
}
.step h3 {
  font-weight: 500;
  font-size: var(--fs-step-title);
  letter-spacing: -0.018em;
  line-height: 1.15;
}
.step p {
  font-size: var(--fs-step-body);
  line-height: 1.6;
  color: var(--fg-dim);
}

/* ============================================================
   QUALIFYING — bone, two columns
   ============================================================ */
.qualifying h2 {
  margin: 32px 0 80px;
  font-weight: 500;
  font-size: var(--fs-h2);
  letter-spacing: -0.028em;
  line-height: 1.08;
  max-width: 1000px;
}
.qualifying h2 .quiet { color: var(--fg-quiet); }
.qual-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}
.qual-head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-quiet);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.qual-list { display: flex; flex-direction: column; gap: 18px; }
.qual-list li {
  font-size: var(--fs-qual);
  line-height: 1.45;
  padding-left: 24px;
  position: relative;
}
.qual-list.is-for li { color: var(--fg-dim); }
.qual-list.is-for li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 14px;
  height: 1px;
  background: var(--fg);
}
.qual-list.is-not li { color: var(--fg-quiet); }
.qual-list.is-not li::before {
  content: "\00d7";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.45;
  color: var(--fg-faint);
}

/* Industries grid (WHO THIS IS FOR): 2x2 on desktop, stacked on mobile.
   Gaps reuse the 48/64 steps of the existing 8px spacing scale. */
.qual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 64px;
  row-gap: 48px;
}

/* ============================================================
   CONTACT — bone, single statement + booking CTA
   ============================================================ */
.contact .hairline {
  width: 100%;
  margin-bottom: 64px;
}
.contact h2 {
  margin: 32px 0 20px;
  font-weight: 500;
  font-size: var(--fs-contact);
  letter-spacing: -0.032em;
  line-height: 1.02;
}
.contact-lead {
  font-size: var(--fs-contact-email);
  color: var(--fg-dim);
  letter-spacing: -0.015em;
  line-height: 1.35;
  max-width: 640px;
}
.contact-row {
  margin-top: 56px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 32px;
}
.contact-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-quiet);
}

/* ============================================================
   FOOTER — dark, brackets the page
   ============================================================ */
.site-footer { padding-block: 56px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  column-gap: 64px;
  align-items: start;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--divider);
}
.ridge-mini {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}
.ridge-mini .wordmark { font-size: 20px; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col .col-head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.footer-col a {
  font-size: 15px;
  color: var(--fg-dim);
  text-decoration: none;
  letter-spacing: -0.005em;
  line-height: 1.5;
}
.footer-col a:hover { color: var(--fg); }

.footer-base {
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.footer-base a { color: var(--fg-faint); text-decoration: none; }
.footer-base a:hover { color: var(--fg); }
.footer-base .only-mobile { display: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet / stacked layout */
@media (max-width: 860px) {
  :root {
    --gutter: 24px;
    --section-pad: 80px;
  }
  .brief h2 { margin: 32px 0 36px; }
  .brief-cols { grid-template-columns: 1fr; }
  .services h2 { margin: 24px 0 12px; }
  .services-intro { margin-bottom: 48px; }
  .cards { grid-template-columns: 1fr; gap: 20px; }
  .process h2 { margin: 24px 0 48px; }
  .steps { grid-template-columns: 1fr; gap: 40px; }
  .qualifying h2 { margin: 24px 0 56px; }
  .qual-cols { grid-template-columns: 1fr; gap: 56px; }
  .qual-grid { grid-template-columns: 1fr; row-gap: 0; }
  .contact .hairline { margin-bottom: 48px; }
  .contact h2 { margin: 24px 0 16px; }
  .contact-row { flex-direction: column; align-items: flex-start; gap: 20px; margin-top: 40px; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    row-gap: 28px;
    padding-bottom: 0;
    border-bottom: 0;
  }
  .footer-col.footer-navcol { display: none; }
  .footer-base {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--divider);
    font-size: 10px;
  }
  .footer-base .only-desktop { display: none; }
  .footer-base .only-mobile { display: inline; }
}

/* Phone: hero density + hamburger nav */
@media (max-width: 640px) {
  .site-nav { display: none; }
  .site-nav.is-open {
    display: flex;
    position: absolute;
    top: 84px;
    right: var(--gutter);
    left: var(--gutter);
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background: #16191b;
    border: 1px solid var(--border);
    border-radius: 4px;
    z-index: 20;
    font-size: 18px;
  }
  .nav-toggle { display: flex; }
  .site-header .wordmark { font-size: 17px; }
  .site-header { padding-top: 24px; }

  .hero-meta-top { margin-bottom: 24px; font-size: 10px; }
  .hero-body { padding-block: 24px; }
  .hero .ridge-hero { margin-top: 18px; }
  .hero-sub { margin-top: 28px; }
  .hero-cta { margin-top: 28px; }
  .hero-meta-bottom { font-size: 10px; }
  .hero-meta-bottom .sep { display: none; }

  .btn { padding: 14px 22px; font-size: 14px; }
}