/* 
  EgoData Corporate Website Stylesheet
  Primary Brand Color: #0B1F33 (Deep Navy)
  Secondary Blue: #176B87
  Green Accent: #4C9A76 (Muted Green)
  Background: #F7F8F6 (Light Off-White)
  White: #FFFFFF
  Text: #17212B (Dark Charcoal)
  Muted Text: #68737D
  Border: #DDE2E5
*/

:root {
  --color-primary: #0B1F33;
  --color-secondary: #176B87;
  --color-accent: #4C9A76;
  --color-bg: #F7F8F6;
  --color-white: #FFFFFF;
  --color-text: #17212B;
  --color-text-muted: #68737D;
  --color-border: #DDE2E5;
  --color-border-dark: #22374C;
  
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --header-height: 80px;
  --container-max: 1280px;
  --transition-smooth: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Global Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  line-height: 1.6;
}

/* Layout Utilities */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5 {
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

p {
  color: var(--color-text);
}

.eyebrow {
  font-family: var(--font-main);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: 16px;
}

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

.section-title {
  font-size: 2.5rem;
  margin-bottom: 20px;
  max-width: 720px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: 40px;
}

.body-large {
  font-size: 1.25rem;
  color: var(--color-text);
  font-weight: 400;
  line-height: 1.65;
}

.text-white {
  color: var(--color-white) !important;
}

.mono {
  font-family: var(--font-mono);
}

/* Buttons & Links */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 4px;
  transition: all 220ms var(--transition-smooth);
  cursor: pointer;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.btn-primary:hover .arrow {
  transform: translateX(4px);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn-accent:hover {
  background-color: #3b8262;
}

.btn-accent:hover .arrow {
  transform: translateX(4px);
}

.arrow {
  display: inline-block;
  transition: transform 200ms ease;
}

.text-link {
  display: inline-flex;
  align-items: center;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  padding: 14px 12px;
  transition: color 200ms ease;
}

.text-link:hover {
  color: var(--color-secondary);
}

/* HEADER */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color 300ms ease, height 300ms ease, border-color 300ms ease, box-shadow 300ms ease;
  background-color: transparent;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  height: 68px;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom-color: var(--color-border);
  box-shadow: 0 4px 20px rgba(11, 31, 51, 0.03);
}

.header-container {
  max-width: var(--container-max);
  height: 100%;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  text-decoration: none;
}

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

.nav-link {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--color-text);
  text-decoration: none;
  transition: color 200ms ease;
}

.nav-link:hover {
  color: var(--color-accent);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  transition: 200ms ease;
}

/* HERO SECTION */
.hero-section {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 100px;
  min-height: 85vh;
  display: flex;
  align-items: center;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 540px;
}

.hero-title {
  font-size: 3.25rem;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.1875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.hero-visual-wrapper {
  width: 100%;
}

.hero-visual {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(11, 31, 51, 0.04);
  position: relative;
}

.hero-svg {
  width: 100%;
  height: auto;
  display: block;
}

.viz-label {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: var(--color-text-muted);
  letter-spacing: 0.08em;
}

.viz-tag {
  font-family: var(--font-mono);
  font-size: 9.5px;
  fill: var(--color-secondary);
  font-weight: 500;
}

.viz-caption {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  margin-top: 16px;
  padding-top: 12px;
}

.viz-caption span {
  font-family: var(--font-mono);
  color: var(--color-primary);
  font-weight: 600;
}

/* INTRODUCTION SECTION */
.intro-section {
  padding: 120px 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-bottom: 80px;
}

.data-flow-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 32px 40px;
}

.flow-step {
  flex: 1;
}

.flow-marker {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.flow-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  font-weight: 600;
}

.flow-icon {
  font-size: 0.875rem;
  color: var(--color-secondary);
}

.flow-label {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.flow-sub {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.flow-arrow {
  color: var(--color-border);
  font-size: 1.25rem;
  padding: 0 20px;
}

/* CAPABILITIES SECTION */
.capabilities-section {
  padding: 120px 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.capability-blocks {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 48px;
}

.capability-block {
  display: grid;
  grid-template-columns: 80px 1fr 180px 60px;
  align-items: center;
  padding: 40px 48px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  transition: all 250ms var(--transition-smooth);
  cursor: default;
}

.capability-block:hover {
  background-color: #F0F3F2;
  border-color: #C2C9CE;
  transform: translateX(4px);
}

.cap-num {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  color: var(--color-text-muted);
  font-weight: 500;
  transition: transform 200ms ease, color 200ms ease;
}

.capability-block:hover .cap-num {
  color: var(--color-accent);
  transform: translateY(-2px);
}

.cap-title {
  font-size: 1.375rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.cap-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 600px;
  line-height: 1.55;
}

.cap-graphic {
  display: flex;
  justify-content: center;
}

.cap-action {
  display: flex;
  justify-content: flex-end;
}

.cap-arrow {
  font-size: 1.25rem;
  color: var(--color-primary);
  transition: transform 200ms ease, color 200ms ease;
}

.capability-block:hover .cap-arrow {
  transform: translateX(6px);
  color: var(--color-accent);
}

/* DATA PIPELINE SECTION (DARK NAVY) */
.pipeline-section {
  padding: 140px 0;
  background-color: var(--color-primary);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.pipeline-header {
  margin-bottom: 80px;
}

.pipeline-diagram {
  position: relative;
  margin-top: 40px;
}

.pipeline-svg-line {
  position: absolute;
  top: 15px;
  left: 0;
  width: 100%;
  height: 120px;
  pointer-events: none;
  z-index: 1;
}

.pipeline-steps {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.pipeline-step {
  background-color: var(--color-border-dark);
  border: 1px solid rgba(221, 226, 229, 0.15);
  padding: 28px 24px;
  border-radius: 4px;
  transition: border-color 200ms ease, transform 200ms ease;
}

.pipeline-step:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.pipe-node {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.pipe-num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-accent);
}

.pipe-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-secondary);
}

.pipe-title {
  font-size: 1.1875rem;
  color: var(--color-white);
  margin-bottom: 10px;
}

.pipe-text {
  font-size: 0.84375rem;
  color: #A0B2C6;
  line-height: 1.5;
}

/* APPROACH SECTION */
.approach-section {
  padding: 130px 0;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  margin-top: 48px;
}

.approach-statement {
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.approach-subtext {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.principle-item {
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
}

.principle-item:first-child {
  padding-top: 0;
}

.principle-item:last-child {
  border-bottom: none;
}

.principle-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.principle-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* APPLICATIONS SECTION */
.applications-section {
  padding: 130px 0;
  background-color: var(--color-white);
}

.applications-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.app-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 32px;
  border-radius: 4px;
  transition: all 250ms var(--transition-smooth);
}

.app-card:hover {
  background-color: var(--color-white);
  border-color: var(--color-secondary);
  box-shadow: 0 8px 24px rgba(11, 31, 51, 0.05);
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.app-index {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.app-arrow {
  color: var(--color-text-muted);
  transition: transform 200ms ease, color 200ms ease;
}

.app-card:hover .app-arrow {
  transform: translate(3px, -3px);
  color: var(--color-accent);
}

.app-name {
  font-size: 1.1875rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.app-details {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* RESEARCH / DATA VISUALIZATION SECTION */
.research-viz-section {
  padding: 130px 0;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.research-viz-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  margin-top: 48px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(11, 31, 51, 0.04);
}

.viz-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background-color: #F1F4F5;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.viz-tab {
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.viz-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
}

.status-indicator {
  width: 7px;
  height: 7px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.viz-body {
  padding: 24px;
}

.research-svg {
  width: 100%;
  height: auto;
  display: block;
}

.rs-label {
  font-family: var(--font-mono);
  font-size: 10px;
  fill: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.06em;
}

.rs-anno {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: var(--color-secondary);
}

.rs-anno-dark {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: var(--color-primary);
  font-weight: 500;
}

.rs-time {
  font-family: var(--font-mono);
  font-size: 9.5px;
  fill: var(--color-text-muted);
}

.viz-footer-bar {
  display: flex;
  justify-content: space-between;
  padding: 12px 24px;
  border-top: 1px solid var(--color-border);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  background-color: var(--color-white);
}

/* ABOUT SECTION */
.about-section {
  padding: 110px 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.about-card {
  max-width: 800px;
}

.about-flow {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: 40px;
  padding: 16px 24px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
}

.about-node {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}

.about-sep {
  color: var(--color-accent);
}

/* CTA SECTION */
.cta-section {
  padding: 130px 0;
  background-color: var(--color-primary);
}

.cta-card {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.cta-title {
  font-size: 2.75rem;
  color: var(--color-white);
  margin-bottom: 20px;
}

.cta-desc {
  font-size: 1.125rem;
  color: #A0B2C6;
  line-height: 1.6;
  margin-bottom: 36px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  margin-bottom: 28px;
}

.cta-email-info {
  font-size: 0.875rem;
  color: #7990A6;
}

.cta-email-info a {
  color: var(--color-white);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* FOOTER */
.site-footer {
  padding: 80px 0 40px 0;
  background-color: #071524;
  color: #8C9CAE;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.875rem;
  color: #8C9CAE;
}

.footer-nav {
  display: flex;
  gap: 32px;
}

.footer-nav a {
  color: #8C9CAE;
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 200ms ease;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 32px;
  font-size: 0.8125rem;
}

/* SUBPAGE & ADDITIONAL LAYOUT STYLES */
.page-hero {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 60px;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.page-hero-title {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 20px;
  max-width: 800px;
}

.page-hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  max-width: 720px;
  line-height: 1.6;
}

.page-section {
  padding: 100px 0;
  border-bottom: 1px solid var(--color-border);
}

.bg-white {
  background-color: var(--color-white);
}

.bg-light {
  background-color: var(--color-bg);
}

.active-link {
  color: var(--color-accent) !important;
  font-weight: 600 !important;
}

/* About Page Elements */
.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 64px;
}

.stat-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 32px;
  border-radius: 4px;
}

.stat-num {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.stat-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.value-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 36px 32px;
  border-radius: 4px;
}

.value-num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 16px;
}

.value-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.value-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Capability Details Page */
.cap-detail-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 60px;
}

.cap-detail-num {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--color-accent);
  display: block;
  margin-bottom: 12px;
}

.cap-detail-title {
  font-size: 2rem;
  line-height: 1.2;
}

.cap-feature-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.feature-item {
  display: flex;
  gap: 16px;
}

.feat-bullet {
  color: var(--color-secondary);
  font-weight: 700;
}

.feature-item h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.feature-item p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* Approach / Integrity Cards */
.integrity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.integrity-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 32px;
  border-radius: 4px;
}

.integrity-card h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.integrity-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Notice Box */
.notice-box {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-secondary);
  padding: 32px 40px;
  border-radius: 4px;
}

.notice-box h3 {
  font-size: 1.375rem;
  margin-bottom: 12px;
}

.notice-box p {
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Contact Page Layout */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-method-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 24px 28px;
  border-radius: 4px;
}

.method-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.method-value {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}

.method-subtext {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.contact-form-wrapper {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 40px;
  border-radius: 6px;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.9375rem;
  font-family: var(--font-main);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text);
  transition: border-color 200ms ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
}

/* RESPONSIVE DESIGN (Desktop 1440px / Laptop 1280px / Tablet 768px / Mobile 390px) */
@media (max-width: 1280px) {
  .container {
    max-width: 1100px;
  }

  .hero-title {
    font-size: 2.75rem;
  }
}

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-content {
    max-width: 100%;
  }

  .capabilities-section .capability-block {
    grid-template-columns: 50px 1fr 40px;
    padding: 32px 28px;
  }

  .cap-graphic {
    display: none;
  }

  .pipeline-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .pipeline-svg-line {
    display: none;
  }

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

  .about-stats-grid, .values-grid, .integrity-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cap-detail-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .site-header {
    height: 68px;
  }

  .header-container {
    padding: 0 20px;
  }

  .nav-menu {
    position: fixed;
    top: 68px;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    flex-direction: column;
    padding: 24px 20px 32px 20px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-150%);
    transition: transform 300ms var(--transition-smooth);
    box-shadow: 0 12px 30px rgba(11, 31, 51, 0.08);
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .nav-link {
    font-size: 1.0625rem;
    padding: 8px 0;
    width: 100%;
    border-bottom: 1px solid #F0F3F5;
  }

  .header-cta {
    display: none;
  }

  .mobile-toggle {
    display: flex;
    padding: 8px;
  }

  .hero-section {
    padding-top: calc(var(--header-height) + 30px);
    padding-bottom: 60px;
    min-height: auto;
  }

  .hero-title {
    font-size: 2.25rem;
    line-height: 1.2;
  }

  .hero-description {
    font-size: 1.0625rem;
    margin-bottom: 28px;
  }

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

  .hero-actions .btn, .hero-actions .text-link {
    justify-content: center;
    text-align: center;
  }

  .section-title {
    font-size: 1.85rem;
  }

  .intro-section, .capabilities-section, .pipeline-section, .approach-section, .applications-section, .research-viz-section, .about-section, .cta-section, .page-section {
    padding: 70px 0;
  }

  .intro-grid, .approach-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .data-flow-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
  }

  .flow-arrow {
    display: none;
  }

  .flow-step {
    width: 100%;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
  }

  .flow-step:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .capability-block {
    grid-template-columns: 40px 1fr 30px;
    padding: 24px 20px;
  }

  .cap-title {
    font-size: 1.1875rem;
  }

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

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

  .research-viz-card {
    margin-top: 24px;
  }

  .viz-header-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .viz-footer-bar {
    flex-direction: column;
    gap: 6px;
  }

  .cta-title {
    font-size: 2rem;
  }

  .footer-top {
    flex-direction: column;
    gap: 36px;
  }

  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
  }

  .about-stats-grid, .values-grid, .integrity-grid {
    grid-template-columns: 1fr;
  }

  .page-hero-title {
    font-size: 2.125rem;
  }

  .contact-form-wrapper {
    padding: 24px 20px;
  }
}

/* Extra Mobile Optimization (390px and below) */
@media (max-width: 480px) {
  .logo {
    font-size: 1.2rem;
  }

  .hero-title {
    font-size: 1.85rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .btn {
    padding: 12px 20px;
    font-size: 0.875rem;
  }

  .about-flow {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .about-sep {
    transform: rotate(90deg);
  }
}