/* ==========================================================================
   Evostr · Global Stylesheet
   Typography: Noto Serif (headings) + Inter (body)
   Primary: #20294F · Background: #FFFFFF / #F5F3EE
   ========================================================================== */

/* ---- Design Tokens ---- */
:root {
  /* Brand Foundations */
  --liela:         #20294F;   /* Primary · Anchor — backgrounds, headlines */
  --navy:          #20294F;   /* Alias for --liela */
  --navy-dark:     #161D3B;
  --navy-light:    #2D3A6B;
  --matte-steel:   #E0E4E5;   /* Secondary · Canvas — canvas, backgrounds */
  --liela-shade:   #3A63C8;   /* Primary Shade — charts, data accents */
  --paper:         #FFFFFF;   /* Neutral · Borderless — plates, cards, ticks */
  --white:         #FFFFFF;   /* Alias for --paper */

  /* Site Backgrounds */
  --cream:         #F5F3EE;
  --cream-dark:    #EDE9E2;

  /* Body Text */
  --body-light:    #4B4B4B;   /* Text on Matte Steel / Paper */
  --body-dark:     #A8A8A8;   /* Text on Liela (navy) */
  --text:          #1A1A22;
  --text-muted:    #6C6C72;
  --text-light:    #9E9E9E;

  /* Accents · Context-Bound */
  --oak-bright:    #D4AB52;   /* Bright Oak Brown — accent ON Liela (#20294F) only */
  --oak:           #886D34;   /* Oak Brown — accent ON Matte Steel (#E0E4E5) only */

  /* Feedback */
  --caution:       #C0432F;   /* Warning · Analysis — risks, errors, negative deltas */
  --safe-zone:     #52A87E;   /* Success · Positive — confirmations, positive deltas */

  /* Borders */
  --border:        #DDD9D3;
  --border-light:  #EDEAE5;

  /* Typography */
  --font-serif: 'Noto Serif', Georgia, 'Times New Roman', serif;
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Layout */
  --max-width:   1160px;
  --gap:         40px;
  --radius:      3px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.75;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ---- Layout ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gap);
}

section {
  padding: 96px 0;
}

section.cream { background: var(--matte-steel); }
section.navy  { background: var(--navy); color: var(--white); }

/* ---- Typography Scale ---- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--navy);
}

h1 {
  font-size: clamp(44px, 6vw, 80px);
  font-weight: 800;
  line-height: 1.05;
}

h2 {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  line-height: 1.15;
}

h3 {
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 700;
}

h4 {
  font-size: 18px;
  font-weight: 700;
}

p {
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.75;
  color: var(--text);
}

p + p { margin-top: 20px; }

strong { font-weight: 600; }

.section-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--oak);
  margin-bottom: 20px;
}

.section-intro {
  font-size: 20px;
  color: var(--text-muted);
  max-width: 640px;
  margin-top: 16px;
}

/* ---- Buttons & Links ---- */
.btn {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s, opacity 0.15s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
  padding: 11px 22px;
}
.btn-primary:hover { background: var(--navy-dark); }

.btn-outline {
  border: 1.5px solid var(--navy);
  color: var(--navy);
  padding: 10px 21px;
}
.btn-outline:hover { background: var(--navy); color: var(--white); }

.btn-white {
  background: var(--white);
  color: var(--navy);
  padding: 11px 22px;
}
.btn-white:hover { opacity: 0.9; }

.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 16px;
  color: var(--navy);
  border-bottom: 1.5px solid currentColor;
  padding-bottom: 1px;
  transition: opacity 0.15s;
}
.cta-link:hover { opacity: 0.65; }

.navy .cta-link,
.navy p,
.navy h1,
.navy h2,
.navy h3 { color: var(--white); }

.navy .cta-link { border-bottom-color: rgba(255,255,255,0.5); }

.navy .section-label { color: var(--oak-bright); }

/* ---- Navigation ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  height: 68px;
  gap: 36px;
}

.nav-logo {
  display: flex;
  align-items: center;
  margin-right: auto;
  flex-shrink: 0;
}

.nav-logo-img {
  height: 34px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--navy); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  transition: transform 0.2s, opacity 0.2s;
}

/* ---- Hero ---- */
.hero {
  padding: 104px 0 96px;
  background: var(--white);
}

.hero h1 {
  max-width: 740px;
  margin-bottom: 32px;
}

.hero-subhead {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 32px;
}

.hero-body {
  font-size: 18px;
  max-width: 540px;
  color: var(--text);
}

.hero-cta {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.hero-cta-note {
  font-size: 15px;
  color: var(--text-muted);
}

/* ---- Market Reality ---- */
.market-reality h2 {
  max-width: 680px;
  margin-bottom: 28px;
}

.market-reality > .container > p {
  max-width: 660px;
  color: var(--text-muted);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin: 56px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--border);
}

.stat {
  background: var(--cream);
  padding: 36px 32px;
}

.stat-number {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 800;
  color: var(--oak);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

.stat-desc {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 12px;
}

.stat-source {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-light);
  font-style: italic;
}

.market-reality .closing {
  max-width: 660px;
  color: var(--text);
  margin-top: 0;
}

/* ---- Evolution Ladder ---- */
.ladder-section h2 {
  margin-bottom: 8px;
}

.ladder {
  max-width: 680px;
  margin: 52px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.ladder-rung {
  display: grid;
  grid-template-columns: 32px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 17px 28px;
  border-bottom: 1px solid var(--border-light);
  background: var(--white);
  transition: background 0.1s;
}

.ladder-rung:last-child { border-bottom: none; }

.ladder-rung.rung-above { background: var(--white); }
.ladder-rung.rung-below { background: var(--white); }

.rung-num {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.05em;
}

.rung-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
}

.rung-below .rung-title {
  font-weight: 700;
  color: var(--navy);
}

.rung-value {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  text-align: right;
  white-space: nowrap;
}

.rung-above .rung-value {
  color: var(--oak);
  font-weight: 600;
}

/* Rung 3 (Domain Specialist — between rifts): positive but not yet above the widening rift */
.rung-mid .rung-value {
  color: var(--oak);
  font-weight: 600;
}

/* Rungs 1–2 (below first rift): commodity outcomes */
.rung-below:not(.rung-mid) .rung-value {
  color: var(--caution);
  font-weight: 500;
}

.ladder-rift {
  background: var(--navy);
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: none;
}

.rift-label {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 700;
  color: var(--oak-bright);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.rift-sub {
  font-family: var(--font-sans);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  font-style: italic;
}

.ladder-section .closing {
  max-width: 620px;
  margin-bottom: 32px;
}

/* ---- What Evostr Does ---- */
.what-we-do h2 {
  max-width: 600px;
  margin-bottom: 24px;
}

.definition-para {
  font-size: 18px;
  font-weight: 400;
  max-width: 680px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.definition-para strong {
  font-weight: 700;
}

.what-we-do > .container > p:not(.definition-para):not(.section-intro) {
  max-width: 660px;
  margin-bottom: 48px;
}

.architecture-domains {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 700px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.domain {
  padding: 32px 36px;
  border-bottom: 1px solid var(--border);
  background: var(--white);
}

.domain:last-child { border-bottom: none; }

.domain-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
  color: var(--oak);
  letter-spacing: -0.04em;
  margin-bottom: 12px;
}

.domain-label {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2vw, 24px);
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: 10px;
}

.domain h3 {
  font-family: var(--font-sans);
  font-size: 12px;
  font-style: italic;
  font-weight: 400;
  color: var(--oak);
  margin-bottom: 10px;
}

.domain p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.65;
}

.what-we-do .footnote {
  max-width: 600px;
  margin-top: 36px;
  font-size: 16px;
  color: var(--text-muted);
  font-style: italic;
}

/* ---- Engagement Cards ---- */
.engagements h2 {
  max-width: 560px;
  margin-bottom: 16px;
}

.engagements .intro {
  max-width: 560px;
  color: var(--text-muted);
  margin-bottom: 52px;
}

.engagement-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 860px;
}

.engagement-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  background: var(--white);
  display: flex;
  flex-direction: column;
}

.engagement-card h3 {
  font-size: 22px;
  margin-bottom: 16px;
}

.engagement-card p {
  font-size: 16px;
  color: var(--text-muted);
  flex: 1;
  margin-bottom: 28px;
  line-height: 1.65;
}

.engagement-meta {
  display: block;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

/* ---- Why Evostr ---- */
.why-evostr h2 {
  max-width: 540px;
  margin-bottom: 16px;
}

.why-evostr .intro {
  max-width: 580px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 56px;
  font-size: 18px;
}

.why-points {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 720px;
}

.why-point {
  padding: 32px 0;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.why-point:first-child { padding-top: 0; }
.why-point:last-child { border-bottom: none; padding-bottom: 0; }

.why-point h3 {
  font-size: 20px;
  color: var(--white);
  margin-bottom: 10px;
}

.why-point p {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  max-width: 640px;
  line-height: 1.65;
}

/* ---- Testimonial ---- */
.testimonial {
  padding: 80px 0;
}

.testimonial-inner {
  max-width: 760px;
}

.quote-mark {
  font-family: var(--font-serif);
  font-size: 80px;
  line-height: 0.6;
  color: var(--cream-dark);
  margin-bottom: 24px;
  display: block;
}

blockquote p {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 400;
  font-style: italic;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 28px;
}

.attribution {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
}

.attribution span {
  font-weight: 400;
  color: var(--text-muted);
}

/* ---- Final CTA ---- */
.final-cta {
  padding: 96px 0;
}

.final-cta h2 {
  color: var(--white);
  max-width: 600px;
  margin-bottom: 20px;
}

.final-cta .cta-body {
  color: rgba(255,255,255,0.72);
  max-width: 500px;
  margin-bottom: 40px;
  font-size: 18px;
}

.final-cta-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.final-cta .cta-secondary {
  font-size: 15px;
  color: rgba(255,255,255,0.65);
  border-bottom: 1px solid rgba(255,255,255,0.3);
  padding-bottom: 1px;
  transition: color 0.15s;
}
.final-cta .cta-secondary:hover { color: var(--white); }

/* ---- Footer ---- */
.site-footer {
  background: var(--cream);
  border-top: 1px solid var(--border);
  padding: 64px 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.6fr;
  gap: 56px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.footer-logo-link {
  display: inline-flex;
  margin-bottom: 20px;
}

.footer-logo-img {
  height: 32px;
  width: auto;
  display: block;
}

.footer-tagline {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 240px;
}

.footer-col-heading {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 20px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.footer-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.15s;
}
.footer-nav a:hover { color: var(--navy); }

.footer-newsletter p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 280px;
  margin-bottom: 20px;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 300px;
}

.newsletter-form input[type="email"] {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
}
.newsletter-form input[type="email"]:focus { border-color: var(--navy); }
.newsletter-form input[type="email"]::placeholder { color: var(--text-light); }

.newsletter-form .btn-primary {
  align-self: flex-start;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-light);
}

.footer-legal {
  display: flex;
  gap: 20px;
}

.footer-legal a {
  font-size: 13px;
  color: var(--text-light);
  transition: color 0.15s;
}
.footer-legal a:hover { color: var(--navy); }

/* Accessibility helper */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---- Hero 2-column ---- */
.hero-container {
  display: grid;
  grid-template-columns: 55fr 45fr;
  gap: 64px;
  align-items: center;
}

.hero-image {
  border-radius: var(--radius);
  overflow: hidden;
  height: 560px;
  flex-shrink: 0;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-cta {
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.hero-cta-note {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.5;
}

.hero-cta-buttons {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

/* ---- Market Reality on cream ---- */
.market-reality.cream .stat { background: var(--white); }

/* ---- Section photo strip ---- */
.section-photo {
  height: 440px;
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 56px;
}

.section-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---- Proof: client header ---- */
.proof-client-header {
  display: block;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--navy);
  max-width: 680px;
  opacity: 0.55;
}

/* ---- Proof testimonial section ---- */
.proof-testimonial {
  /* padding inherited from section */
}

.proof-testimonial .proof-client-header {
  margin-bottom: 36px;
}

blockquote.proof-quote-featured {
  max-width: 720px;
}

blockquote.proof-quote-featured p {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.2vw, 26px);
  font-style: italic;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 28px;
}

blockquote.proof-quote-featured .attribution {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
}

blockquote.proof-quote-featured .attribution span {
  font-weight: 400;
  color: var(--text-muted);
}

/* ---- Not Ready inline newsletter ---- */
.not-ready-newsletter {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  max-width: 520px;
}

.not-ready-newsletter h3 {
  font-size: 19px;
  margin-bottom: 8px;
}

.not-ready-newsletter > p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.inline-newsletter-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.inline-newsletter-form input[type="email"] {
  flex: 1;
  min-width: 200px;
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
}
.inline-newsletter-form input[type="email"]:focus { border-color: var(--navy); }
.inline-newsletter-form input[type="email"]::placeholder { color: var(--text-light); }

/* ---- Responsive ---- */
@media (max-width: 860px) {
  :root { --gap: 24px; }
  section { padding: 72px 0; }

  .nav-links, .nav .btn-primary {
    display: none;
  }

  .nav-toggle { display: flex; }

  .nav.open .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 68px 0 0 0;
    background: var(--white);
    padding: 40px 24px;
    gap: 32px;
    border-top: 1px solid var(--border);
    z-index: 199;
  }

  .nav.open .nav-links a {
    font-size: 20px;
    color: var(--navy);
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-image {
    height: 320px;
  }

  .section-photo {
    height: 300px;
  }

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

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

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  h1 { font-size: 36px; }
  h2 { font-size: 26px; }
  .hero { padding: 72px 0 64px; }
  .hero-subhead { font-size: 18px; }
  .hero-image { height: 240px; }
  .section-photo { height: 220px; }
  .stat-number { font-size: 48px; }
  .ladder-rung { padding: 14px 20px; }
  .domain { padding: 24px 24px; }
  .engagement-card { padding: 28px; }
  .inline-newsletter-form { flex-direction: column; }
  .inline-newsletter-form input[type="email"] { min-width: unset; }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-brand { grid-column: auto; }

  .newsletter-form { max-width: 100%; }
}