/* ============================================================
   OIS PARTNERS — styles.css
   Executive-level outsourced inside sales website
   
   TABLE OF CONTENTS:
   1.  CSS Variables & Reset
   2.  Typography
   3.  Layout Utilities
   4.  Buttons
   5.  Navigation
   6.  Hero Section
   7.  Trust Bar
   8.  Problem Section
   9.  Solution Section
   10. Services Section
   11. Process Section
   12. Industries Section
   13. Differentiators Section
   14. Metrics Section
   15. CTA Section
   16. Footer
   17. Scroll Reveal Animations
   18. Responsive Breakpoints
============================================================ */


/* ============================================================
   1. CSS VARIABLES & RESET
============================================================ */
:root {
  /* Brand Colors */
  --navy:        #0d1f3c;       /* Deep navy — primary brand */
  --navy-mid:    #122549;       /* Slightly lighter navy */
  --navy-light:  #1a3460;       /* Used for hover states */
  --gold:        #4f7fb8;       /* Steel blue accent */
  --gold-light:  #89b4d9;       /* Lighter steel blue for text on dark bg */
  --charcoal:    #2c2c2c;       /* Body text */
  --slate:       #4a5568;       /* Secondary text */
  --silver:      #8899aa;       /* Muted labels */
  --light-gray:  #f4f5f7;       /* Section backgrounds */
  --border:      #e2e8f0;       /* Dividers */
  --white:       #ffffff;

  /* Typography */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'DM Sans', 'Helvetica Neue', Arial, sans-serif;

  /* Spacing */
  --section-py:   100px;
  --container:    1160px;
  --gutter:       24px;

  /* Transitions */
  --ease:         cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out:     cubic-bezier(0.16, 1, 0.3, 1);
  --duration:     0.4s;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--charcoal);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}


/* ============================================================
   2. TYPOGRAPHY
============================================================ */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--navy);
}

.section-label {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
}

.section-heading {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 20px;
  color: var(--navy);
}

.section-sub {
  font-size: 18px;
  color: var(--slate);
  max-width: 600px;
  line-height: 1.7;
}

.section-body {
  color: var(--slate);
  margin-bottom: 20px;
  max-width: 520px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header .section-sub {
  margin: 0 auto;
}


/* ============================================================
   3. LAYOUT UTILITIES
============================================================ */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}


/* ============================================================
   4. BUTTONS
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 14px 28px;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  text-transform: uppercase;
  white-space: nowrap;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.btn-primary:hover {
  background: var(--navy-light);
  border-color: var(--navy-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(13, 31, 60, 0.25);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn-nav {
  background: var(--gold);
  color: var(--navy);
  border-color: var(--gold);
  font-size: 12px;
  padding: 11px 22px;
}

.btn-nav:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(184, 151, 46, 0.3);
}

.btn-large {
  font-size: 15px;
  padding: 18px 40px;
}


/* ============================================================
   5. NAVIGATION
============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
  padding: 0;
}

.site-header.scrolled {
  background: rgba(13, 31, 60, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 76px;
  display: flex;
  align-items: center;
  gap: 48px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.logo-mark {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--gold);
  letter-spacing: 0.05em;
}

.logo-text {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  margin: 0;
  flex: 1;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color var(--duration) var(--ease);
}

.nav-links a:hover {
  color: var(--white);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all var(--duration) var(--ease);
  transform-origin: center;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  background: var(--navy);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu ul {
  padding: 20px var(--gutter) 28px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu a {
  display: block;
  padding: 12px 0;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.mobile-menu .btn {
  margin-top: 12px;
  width: 100%;
  justify-content: center;
  border: none;
}


/* ============================================================
   6. HERO SECTION
============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy);
  overflow: hidden;
}

/* Subtle grid texture */
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* Radial glow */
.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -5%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(184, 151, 46, 0.08) 0%, transparent 65%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(26, 52, 96, 0.5) 0%, transparent 65%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 120px;
  padding-bottom: 100px;
  max-width: 860px;
}

.hero-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 24px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 28px;
  max-width: 820px;
}

.hero-sub {
  font-size: 19px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
  max-width: 620px;
  margin-bottom: 44px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-proof {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.proof-item {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.proof-item strong {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.proof-divider {
  color: rgba(255, 255, 255, 0.2);
  font-size: 18px;
}


/* ============================================================
   7. TRUST BAR
============================================================ */
.trust-bar {
  background: var(--white);
  padding: var(--section-py) 0;
  border-bottom: 1px solid var(--border);
}

.trust-statement {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  line-height: 1.5;
  color: var(--navy);
  text-align: center;
  max-width: 820px;
  margin: 0 auto 72px;
}

.trust-pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.trust-pillar {
  text-align: center;
}

.pillar-icon {
  font-size: 24px;
  margin-bottom: 12px;
}

.trust-pillar strong {
  display: block;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 8px;
}

.trust-pillar p {
  font-size: 14px;
  color: var(--slate);
  line-height: 1.6;
}


/* ============================================================
   8. PROBLEM SECTION
============================================================ */
.problem {
  background: var(--light-gray);
  padding: var(--section-py) 0;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.problem-left {
  position: sticky;
  top: 120px;
}

.problem-left .section-heading {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.problem-right {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.problem-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 28px 32px;
  display: flex;
  align-items: flex-start;
  gap: 24px;
  transition: box-shadow var(--duration) var(--ease),
              border-color var(--duration) var(--ease);
}

.problem-card:hover {
  box-shadow: 0 8px 32px rgba(13, 31, 60, 0.1);
  border-color: var(--navy);
}

.problem-num {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--gold);
  font-weight: 400;
  flex-shrink: 0;
  margin-top: 2px;
  letter-spacing: 0.05em;
}

.problem-card strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}

.problem-card p {
  font-size: 14px;
  color: var(--slate);
  line-height: 1.6;
  margin: 0;
}


/* ============================================================
   9. SOLUTION SECTION
============================================================ */
.solution {
  background: var(--navy);
  padding: var(--section-py) 0;
}

.solution .section-label {
  color: var(--gold-light);
}

.solution-header {
  margin-bottom: 64px;
}

.solution-heading {
  color: var(--white);
  max-width: 680px;
  font-size: clamp(2rem, 4vw, 2.8rem);
}

.solution-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.solution-description p {
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 20px;
  line-height: 1.75;
}

.solution-description .btn-primary {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy);
  margin-top: 12px;
}

.solution-description .btn-primary:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
}

.solution-features {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.solution-feature {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--duration) var(--ease);
}

.solution-feature:first-child {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.solution-feature:hover {
  padding-left: 8px;
}

.feature-icon {
  color: var(--gold);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 3px;
}

.solution-feature strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 4px;
}

.solution-feature p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
  line-height: 1.6;
}


/* ============================================================
   10. SERVICES SECTION
============================================================ */
.services {
  background: var(--white);
  padding: var(--section-py) 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  border: 2px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.service-card {
  padding: 44px 36px;
  background: var(--white);
  border: none;
  transition: background var(--duration) var(--ease);
  position: relative;
}

.service-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 2px;
  height: 100%;
  background: var(--border);
}

.service-card:nth-child(3n)::after { display: none; }

.service-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--border);
}

.service-card:nth-child(4),
.service-card:nth-child(5),
.service-card:nth-child(6) {
  border-bottom: none;
}

.service-card:hover {
  background: var(--light-gray);
}

.service-card:hover .service-icon {
  color: var(--gold);
}

.service-icon {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--silver);
  margin-bottom: 20px;
  display: block;
  transition: color var(--duration) var(--ease);
  letter-spacing: 0.05em;
}

.service-card h3 {
  font-size: 20px;
  margin-bottom: 14px;
  color: var(--navy);
}

.service-card p {
  font-size: 14px;
  color: var(--slate);
  line-height: 1.7;
  margin: 0;
}


/* ============================================================
   11. PROCESS SECTION
============================================================ */
.process {
  background: var(--light-gray);
  padding: var(--section-py) 0;
}

.process-steps {
  max-width: 780px;
  margin: 0 auto;
}

.process-step {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 32px;
  align-items: start;
}

.process-connector {
  height: 40px;
  width: 1px;
  background: linear-gradient(to bottom, var(--gold), rgba(184,151,46,0.15));
  margin-left: 35px;
}

.step-number {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 0.1em;
  padding-top: 4px;
  text-align: center;
  width: 72px;
  height: 72px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--white);
  box-shadow: 0 0 0 6px var(--light-gray);
  transition: all var(--duration) var(--ease);
}

.process-step:hover .step-number {
  background: var(--gold);
  color: var(--white);
}

.step-content {
  padding: 12px 0 20px;
}

.step-content h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

.step-content p {
  font-size: 15px;
  color: var(--slate);
  line-height: 1.7;
  max-width: 540px;
}


/* ============================================================
   12. INDUSTRIES SECTION
============================================================ */
.industries {
  background: var(--white);
  padding: var(--section-py) 0;
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.industry-card {
  padding: 40px 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--white);
  transition: all var(--duration) var(--ease);
  cursor: default;
}

.industry-card:hover {
  border-color: var(--navy);
  box-shadow: 0 12px 40px rgba(13, 31, 60, 0.1);
  transform: translateY(-3px);
}

.industry-mark {
  font-size: 14px;
  color: var(--gold);
  margin-bottom: 20px;
  display: block;
}

.industry-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.industry-card p {
  font-size: 14px;
  color: var(--slate);
  line-height: 1.7;
  margin: 0;
}


/* ============================================================
   13. DIFFERENTIATORS SECTION
============================================================ */
.differentiators {
  background: var(--light-gray);
  padding: var(--section-py) 0;
}

.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.diff-left {
  position: sticky;
  top: 120px;
}

.diff-left .section-heading {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
}

.diff-left .btn-primary {
  margin-top: 8px;
}

.diff-right {
  display: flex;
  flex-direction: column;
}

.diff-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.diff-item:first-child {
  border-top: 1px solid var(--border);
}

.diff-check {
  width: 32px;
  height: 32px;
  background: var(--navy);
  color: var(--gold-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.diff-item strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}

.diff-item p {
  font-size: 14px;
  color: var(--slate);
  line-height: 1.65;
  margin: 0;
}


/* ============================================================
   14. METRICS SECTION
============================================================ */
.metrics {
  background: var(--navy);
  padding: var(--section-py) 0;
}

.metrics .section-label {
  color: var(--gold-light);
}

.metrics-heading {
  color: var(--white);
}

.metrics-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
  font-style: italic;
  margin-top: 8px;
  max-width: none;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  overflow: hidden;
}

.metric-card {
  padding: 48px 36px;
  background: rgba(255, 255, 255, 0.04);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--duration) var(--ease);
}

.metric-card:last-child {
  border-right: none;
}

.metric-card:hover {
  background: rgba(255, 255, 255, 0.07);
}

.metric-number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  color: var(--white);
  line-height: 1;
  margin-bottom: 12px;
}

.metric-plus {
  color: var(--gold-light);
  font-size: 0.7em;
  vertical-align: super;
}

.metric-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
  line-height: 1.3;
}

.metric-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.5;
}


/* ============================================================
   15. CTA SECTION
============================================================ */
.cta-section {
  background: var(--white);
  padding: var(--section-py) 0;
  border-top: 1px solid var(--border);
}

.cta-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.cta-label {
  text-align: center;
}

.cta-heading {
  font-size: clamp(2rem, 4.5vw, 3rem);
  color: var(--navy);
  margin-bottom: 24px;
  line-height: 1.15;
}

.cta-sub {
  font-size: 18px;
  color: var(--slate);
  line-height: 1.7;
  margin-bottom: 48px;
}

.cta-actions {
  margin-bottom: 24px;
}

.cta-contact {
  font-size: 14px;
  color: var(--silver);
}

.cta-contact a {
  color: var(--navy);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: border-color var(--duration) var(--ease);
}

.cta-contact a:hover {
  border-color: var(--navy);
}


/* ============================================================
   16. FOOTER
============================================================ */
.site-footer {
  background: var(--navy);
  padding-top: 72px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--duration) var(--ease);
  line-height: 1.5;
}

.footer-col a:hover {
  color: var(--white);
}

.footer-col li:not(:has(a)) {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom {
  padding: 24px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.3);
}


/* ============================================================
   17. SCROLL REVEAL ANIMATIONS
============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.45s; }


/* ============================================================
   18. RESPONSIVE BREAKPOINTS
============================================================ */

/* Tablet — 1024px */
@media (max-width: 1024px) {
  :root {
    --section-py: 80px;
  }

  .trust-pillars {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .problem-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .problem-left {
    position: static;
  }

  .solution-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-card:nth-child(3n)::after {
    display: block;
  }

  .service-card:nth-child(2n)::after {
    display: none;
  }

  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .diff-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .diff-left {
    position: static;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric-card:nth-child(2) {
    border-right: none;
  }

  .metric-card:nth-child(3) {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .metric-card:nth-child(4) {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

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

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

/* Mobile — 768px */
@media (max-width: 768px) {
  :root {
    --section-py: 64px;
  }

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

  .nav-toggle {
    display: flex;
  }

  .nav-inner {
    gap: 16px;
  }

  .hero-headline {
    font-size: clamp(2.2rem, 8vw, 3rem);
  }

  .hero-sub {
    font-size: 17px;
  }

  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .hero-ctas .btn {
    text-align: center;
    justify-content: center;
  }

  .hero-proof {
    display: none;
  }

  .trust-pillars {
    grid-template-columns: 1fr 1fr;
  }

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

  .service-card::after,
  .service-card::before {
    display: none;
  }

  .services-grid {
    border: none;
    gap: 16px;
  }

  .service-card {
    border: 1px solid var(--border);
    border-radius: 6px;
  }

  .industries-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-steps {
    padding: 0 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .footer-bottom-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* Small mobile — 480px */
@media (max-width: 480px) {
  .trust-pillars {
    grid-template-columns: 1fr;
  }

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

  .metric-card {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .process-step {
    grid-template-columns: 56px 1fr;
    gap: 20px;
  }

  .step-number {
    width: 56px;
    height: 56px;
    font-size: 12px;
  }

  .process-connector {
    margin-left: 27px;
  }

  .section-heading {
    font-size: 1.8rem;
  }
}