/* PhysioAide - Style System
   ================================================== */

/* CSS Custom Properties (Design Tokens) */
:root {
  /* Colors */
  --color-white: #FFFFFF;
  --color-bg-subtle: #F9FAFB;
  --color-bg-muted: #F3F4F6;
  --color-text-primary: #111827;
  --color-text-secondary: #4B5563;
  --color-text-muted: #6B7280;
  --color-black: #000000;
  
  /* Accent */
  --color-accent: #00C4A7;
  --color-accent-hover: #00A88E;
  --color-accent-light: rgba(0, 196, 167, 0.1);
  --color-accent-glow: rgba(0, 196, 167, 0.3);
  
  /* Borders & Shadows */
  --color-border: #E5E7EB;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-card-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Inter", "Roboto", "Segoe UI", sans-serif;
  --font-size-xs: 0.8125rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.375rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.5rem;
  
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  
  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;
  --section-padding: 6rem;
  --gutter: 1.5rem;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
}

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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

input, button, textarea, select {
  font: inherit;
}

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

ul, ol {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
}

h1 {
  font-size: var(--font-size-5xl);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-4xl);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--font-size-xl);
}

p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.text-muted {
  color: var(--color-text-muted);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-bg-subtle);
  border-color: var(--color-text-muted);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: height var(--transition-base);
}

.header.scrolled {
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-4);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  flex-shrink: 0;
}

/* Brand name with gradient matching the logo colors */
.brand-name {
  background: linear-gradient(
    90deg,
    #2DD4BF 0%,      /* Turquoise/Mint */
    #22D3EE 25%,     /* Cyan */
    #38BDF8 45%,     /* Light Blue */
    #3B82F6 65%,     /* Blue */
    #8B5CF6 85%,     /* Purple */
    #A78BFA 100%     /* Light Purple */
  );
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.logo-icon {
  width: 72px;
  height: 72px;
  object-fit: contain;
  border-radius: 0;
  transition: all var(--transition-base);
}

/* Contracted logo when scrolling */
.header.scrolled .logo-icon {
  width: 36px;
  height: 36px;
}

/* Footer logo always large */
.footer .logo-icon {
  width: 72px;
  height: 72px;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin: 0;
  padding: 0;
  white-space: nowrap;
}

.nav-desktop .btn {
  flex-shrink: 0;
  white-space: nowrap;
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

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

.mobile-menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  position: relative;
  transition: background var(--transition-fast);
}

.mobile-menu-btn span::before,
.mobile-menu-btn span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: transform var(--transition-base);
}

.mobile-menu-btn span::before {
  top: -7px;
}

.mobile-menu-btn span::after {
  bottom: -7px;
}

.mobile-menu-btn.active span {
  background: transparent;
}

.mobile-menu-btn.active span::before {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span::after {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
.nav-mobile {
  display: none;
  position: fixed;
  top: 100px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  padding: var(--space-8);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base), top var(--transition-base);
}

.header.scrolled .nav-mobile {
  top: var(--header-height);
}

.nav-mobile.active {
  opacity: 1;
  visibility: visible;
}

.nav-mobile .nav-links {
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-6);
}

.nav-mobile .nav-link {
  font-size: var(--font-size-xl);
}

.nav-mobile .btn {
  width: 100%;
  margin-top: var(--space-8);
}

/* Section Base */
section {
  padding: var(--section-padding) 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-16);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: var(--font-size-lg);
}

.section-label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

/* Hero Section */
.hero {
  padding-top: calc(100px + var(--section-padding));
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, var(--color-bg-subtle) 0%, var(--color-white) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero-content {
  max-width: 560px;
}

.hero h1 {
  margin-bottom: var(--space-6);
  color: var(--color-black);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-8);
}

.hero-ctas {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.hero-meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.hero-visual {
  position: relative;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
}

.hero-device-overlay {
  position: absolute;
  bottom: -20px;
  left: -20px;
  width: 160px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--color-white);
}

/* Cards */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-accent-light);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-accent-light);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-accent);
}

.card h3 {
  margin-bottom: var(--space-3);
}

.card p {
  font-size: var(--font-size-base);
}

.card-grid {
  display: grid;
  gap: var(--gutter);
}

.card-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

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

/* Feature List */
.feature-list {
  margin-top: var(--space-4);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.feature-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  margin-top: 8px;
  flex-shrink: 0;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gutter);
  margin-top: var(--space-12);
}

.stat-item {
  text-align: center;
  padding: var(--space-6);
}

.stat-value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Two Column Layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.two-col-reverse {
  direction: rtl;
}

.two-col-reverse > * {
  direction: ltr;
}

.two-col-content h2 {
  margin-bottom: var(--space-6);
}

.two-col-content p {
  margin-bottom: var(--space-4);
}

.two-col-image {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.two-col-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* Timeline / Steps */
.timeline {
  position: relative;
  padding-left: var(--space-12);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-border) 100%);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-10);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: calc(-1 * var(--space-12) + 7px);
  width: 18px;
  height: 18px;
  background: var(--color-white);
  border: 3px solid var(--color-accent);
  border-radius: var(--radius-full);
}

.timeline-content h3 {
  margin-bottom: var(--space-2);
}

.timeline-content p {
  font-size: var(--font-size-base);
}

/* Steps (Horizontal) */
.steps {
  display: flex;
  gap: var(--space-4);
}

.step {
  flex: 1;
  position: relative;
  text-align: center;
  padding: var(--space-6);
}

.step::after {
  content: '';
  position: absolute;
  top: 28px;
  right: -50%;
  width: 100%;
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}

.step:last-child::after {
  display: none;
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin: 0 auto var(--space-4);
  position: relative;
  z-index: 1;
}

.step h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-2);
}

.step p {
  font-size: var(--font-size-sm);
}

/* Team Grid */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gutter);
  margin-bottom: var(--space-8);
}

.team-grid-2 {
  grid-template-columns: repeat(2, 1fr);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.team-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.team-card {
  text-align: center;
  padding: var(--space-8);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.team-photo {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-full);
  margin: 0 auto var(--space-4);
  object-fit: cover;
  background: var(--color-bg-muted);
}

.team-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-1);
}

.team-role {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-3);
}

.team-bio {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.team-affiliation {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: var(--space-3);
  padding: var(--space-1) var(--space-2);
  background: var(--color-bg-subtle);
  border-radius: var(--radius-sm);
  display: inline-block;
}

.team-linkedin {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-4);
  color: #0A66C2;
  transition: all var(--transition-base);
}

.team-linkedin:hover {
  color: #004182;
  transform: scale(1.1);
}

.team-card-consultant {
  border: 2px solid var(--color-accent-light);
  max-width: 400px;
}

/* Consultant Section */
.team-consultant-section {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.consultant-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.consultant-fund-logo {
  height: 60px;
  width: auto;
  margin-bottom: var(--space-4);
}

.consultant-header h3 {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.consultant-header p {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--color-bg-subtle) 0%, var(--color-bg-muted) 100%);
  text-align: center;
}

.cta-content {
  max-width: 640px;
  margin: 0 auto;
}

.cta-content h2 {
  margin-bottom: var(--space-4);
}

.cta-content p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-8);
}

.cta-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
}

/* Footer */
.footer {
  background: var(--color-text-primary);
  color: var(--color-white);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin-top: var(--space-4);
  max-width: 280px;
}

.footer-col h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-funding {
  padding: var(--space-4) 0;
  margin-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Investor Page Specific */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gutter);
}

.tier-card {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

.tier-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
}

.tier-card.featured {
  border-color: var(--color-accent);
  position: relative;
}

.tier-card.featured::before {
  content: 'Recommended';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
}

.tier-amount {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.tier-stage {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-6);
}

.tier-card h3 {
  margin-bottom: var(--space-4);
}

.tier-features {
  margin-bottom: var(--space-6);
}

.tier-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.tier-features li::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: var(--font-weight-bold);
}

/* Contact Form */
.contact-form {
  max-width: 560px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1 { transition-delay: 0ms; }
.stagger-2 { transition-delay: 80ms; }
.stagger-3 { transition-delay: 160ms; }
.stagger-4 { transition-delay: 240ms; }
.stagger-5 { transition-delay: 320ms; }
.stagger-6 { transition-delay: 400ms; }

@media (prefers-reduced-motion: reduce) {
  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Background Sections */
.bg-subtle {
  background-color: var(--color-bg-subtle);
}

.bg-gradient {
  background: linear-gradient(180deg, var(--color-white) 0%, var(--color-bg-subtle) 100%);
}

/* Responsive */
@media (max-width: 1024px) {
  :root {
    --section-padding: 4rem;
  }
  
  h1 {
    font-size: var(--font-size-4xl);
  }
  
  h2 {
    font-size: var(--font-size-3xl);
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  
  .hero-content {
    max-width: 100%;
    text-align: center;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .two-col {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  
  .two-col-reverse {
    direction: ltr;
  }
  
  .card-grid-3,
  .card-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .team-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .team-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .tier-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .steps {
    flex-direction: column;
  }
  
  .step::after {
    display: none;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 3rem;
    --gutter: 1rem;
  }
  
  h1 {
    font-size: var(--font-size-3xl);
  }
  
  h2 {
    font-size: var(--font-size-2xl);
  }
  
  .nav-desktop {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .nav-mobile {
    display: block;
  }
  
  .hero-ctas {
    flex-direction: column;
  }
  
  .hero-ctas .btn {
    width: 100%;
  }
  
  .card-grid-3,
  .card-grid-2 {
    grid-template-columns: 1fr;
  }
  
  .team-grid,
  .team-grid-2,
  .team-grid-3 {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-buttons {
    flex-direction: column;
  }
  
  .cta-buttons .btn {
    width: 100%;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

/* Section Images */
.section-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.section-image img {
  width: 100%;
  height: auto;
  display: block;
}

.rounded-image {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.full-width-image {
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
}

.process-visual,
.platform-visual,
.marketplace-visual,
.opportunity-visual,
.product-visual,
.business-visual,
.roadmap-visual,
.ai-visual {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.ai-visual img {
  width: 100%;
  height: auto;
  object-fit: cover;
  max-height: 360px;
}

/* Supported By Section */
.supported-by-section {
  background: var(--color-bg-subtle);
  padding: var(--space-16) 0;
}

.supported-by-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.supported-by-content h2 {
  margin-bottom: var(--space-4);
}

.supported-by-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-10);
}

.supporter-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-8);
}

.supporter-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.supporter-logo:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.supporter-logo img {
  height: 50px;
  width: auto;
  object-fit: contain;
  /* Grayscale filter - remove this line to show original colors */
  filter: grayscale(100%);
  opacity: 0.7;
  transition: all var(--transition-base);
}

.supporter-logo:hover img {
  /* On hover, show original colors */
  filter: grayscale(0%);
  opacity: 1;
}

@media (max-width: 768px) {
  .supporter-logo img {
    height: 40px;
  }
  
  .supporter-logos {
    gap: var(--space-4);
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-accent { color: var(--color-accent); }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }