/* ============================================
   Sideline Scout — Design System
   Premium sports travel platform
   ============================================ */

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

:root {
  /* Navy palette */
  --navy-950: #060E1B;
  --navy-900: #0A1628;
  --navy-800: #0F1F38;
  --navy-700: #152A4A;
  --navy-600: #1C3660;

  /* Green palette */
  --green-800: #0F4425;
  --green-700: #15603A;
  --green-600: #1A7A4A;
  --green-500: #22944F;
  --green-400: #34B364;

  /* Sand palette */
  --sand-50: #FDFCFA;
  --sand-100: #FBF8F3;
  --sand-200: #F5EDE0;
  --sand-300: #E8DCC8;

  /* Gray palette */
  --gray-50: #FAFAFA;
  --gray-100: #F5F5F7;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* Accent */
  --sky-300: #7DD3FC;
  --sky-400: #5BA4CF;
  --sky-500: #3B8BBE;
  --gold-300: #F0D77B;
  --gold-400: #D4AF37;
  --gold-500: #C8A45C;

  /* Semantic */
  --white: #FFFFFF;
  --bg-primary: #FFFFFF;
  --bg-secondary: var(--sand-50);
  --bg-dark: var(--navy-900);
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-600);
  --text-tertiary: var(--gray-400);
  --text-on-dark: #FFFFFF;
  --text-on-dark-muted: rgba(255,255,255,0.65);
  --border: var(--gray-200);
  --border-light: var(--gray-100);

  /* Spacing */
  --section-pad: 112px;
  --section-pad-mobile: 72px;
  --container: 1200px;
  --container-narrow: 800px;
  --container-text: 640px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 0.2s;
  --duration-md: 0.3s;
  --duration-lg: 0.5s;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

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

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

button, input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  line-height: 1.15;
}

h3 {
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.8rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

/* --- Layout --- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--text {
  max-width: var(--container-text);
}

.section {
  padding: var(--section-pad) 0;
}

.section--dark {
  background: var(--bg-dark);
  color: var(--text-on-dark);
}

.section--sand {
  background: var(--sand-50);
}

.section--gray {
  background: var(--gray-50);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  transition: background var(--duration-md) var(--ease), box-shadow var(--duration-md) var(--ease);
}

.nav.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text-on-dark);
  transition: color var(--duration-md) var(--ease);
}

.nav.scrolled .nav-logo {
  color: var(--navy-900);
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--green-600);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-on-dark-muted);
  transition: color var(--duration) var(--ease);
  white-space: nowrap;
}

.nav.scrolled .nav-links a {
  color: var(--gray-500);
}

.nav-links a:hover {
  color: var(--text-on-dark);
}

.nav.scrolled .nav-links a:hover {
  color: var(--navy-900);
}

.nav-cta {
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
  background: var(--green-600);
  color: white;
  border: 1px solid var(--green-600);
}

.nav-cta:hover {
  background: var(--green-700);
  border-color: var(--green-700);
}

.nav-mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-on-dark);
}

.nav.scrolled .nav-mobile-toggle {
  color: var(--navy-900);
}

.nav-mobile-toggle svg {
  width: 24px;
  height: 24px;
}

/* Mobile nav */
.nav-mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: white;
  padding: 16px 24px 24px;
  box-shadow: var(--shadow-lg);
  z-index: 999;
}

.nav-mobile-menu.active {
  display: block;
}

.nav-mobile-menu a {
  display: block;
  padding: 12px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
}

.nav-mobile-menu a:last-child {
  border-bottom: none;
}

.nav-mobile-menu .nav-cta {
  display: block;
  text-align: center;
  margin-top: 16px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
  text-decoration: none;
}

.btn--primary {
  background: var(--green-600);
  color: white;
  border: 2px solid var(--green-600);
}

.btn--primary:hover {
  background: var(--green-700);
  border-color: var(--green-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26, 122, 74, 0.3);
}

.btn--secondary {
  background: transparent;
  color: var(--text-on-dark-muted);
  border: 2px solid rgba(255,255,255,0.2);
}

.btn--secondary:hover {
  color: var(--text-on-dark);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--green-600);
  border: 2px solid var(--green-600);
}

.btn--outline:hover {
  background: var(--green-600);
  color: white;
  transform: translateY(-1px);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

.btn--lg {
  padding: 16px 36px;
  font-size: 1rem;
}

.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Section Labels --- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green-600);
  margin-bottom: 16px;
}

.section-label--dark {
  color: var(--green-400);
}

.section-subtitle {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 580px;
  font-weight: 400;
}

.section-subtitle--dark {
  color: var(--text-on-dark-muted);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy-900);
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(26,122,74,0.12) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(91,164,207,0.08) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  color: var(--text-on-dark);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(26,122,74,0.12);
  border: 1px solid rgba(26,122,74,0.25);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--green-400);
  margin-bottom: 28px;
  letter-spacing: 0.01em;
}

.hero-badge::before {
  content: '';
  width: 7px;
  height: 7px;
  background: var(--green-400);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.hero h1 {
  color: var(--text-on-dark);
  margin-bottom: 24px;
}

.hero h1 .highlight {
  color: var(--green-400);
}

.hero-sub {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-on-dark-muted);
  max-width: 520px;
  margin-bottom: 40px;
  font-weight: 400;
}

/* --- Chat Preview --- */
.chat-preview {
  background: var(--navy-800);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.3);
}

.chat-header {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-header-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green-500);
}

.chat-header-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-on-dark);
}

.chat-header-sub {
  font-size: 0.75rem;
  color: var(--text-on-dark-muted);
  margin-left: auto;
}

.chat-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 300px;
}

.chat-msg {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.chat-msg--user {
  flex-direction: row-reverse;
}

.chat-avatar {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.chat-msg--user .chat-avatar {
  background: rgba(91,164,207,0.2);
  color: var(--sky-300);
}

.chat-msg--ai .chat-avatar {
  background: rgba(26,122,74,0.2);
  color: var(--green-400);
}

.chat-bubble {
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.85rem;
  line-height: 1.6;
  max-width: 85%;
}

.chat-msg--user .chat-bubble {
  background: rgba(91,164,207,0.1);
  border: 1px solid rgba(91,164,207,0.15);
  color: rgba(255,255,255,0.85);
}

.chat-msg--ai .chat-bubble {
  background: rgba(26,122,74,0.08);
  border: 1px solid rgba(26,122,74,0.15);
  color: rgba(255,255,255,0.8);
}

.chat-bubble strong {
  color: var(--green-400);
  font-weight: 600;
}

.chat-prompts {
  padding: 16px 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chat-prompt-chip {
  padding: 7px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-on-dark-muted);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
}

.chat-prompt-chip:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
  color: var(--text-on-dark);
}

/* --- Steps / How It Works --- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 56px;
}

.step-card {
  text-align: center;
  padding: 40px 28px;
  border-radius: var(--radius-xl);
  background: var(--white);
  border: 1px solid var(--border);
  transition: all var(--duration-md) var(--ease);
  position: relative;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--green-600);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  margin: 0 auto 20px;
}

.step-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.step-card h3 {
  margin-bottom: 12px;
  color: var(--gray-900);
}

.step-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Step connectors (desktop) */
.step-card:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 62px;
  right: -18px;
  width: 36px;
  height: 2px;
  background: linear-gradient(90deg, var(--green-600), var(--green-400));
  opacity: 0.3;
}

/* --- Feature Cards --- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

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

.feature-card {
  padding: 36px 32px;
  border-radius: var(--radius-xl);
  background: var(--white);
  border: 1px solid var(--border);
  transition: all var(--duration-md) var(--ease);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-card--dark {
  background: rgba(255,255,255,0.03);
  border-color: rgba(255,255,255,0.07);
}

.feature-card--dark:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.fi-green { background: rgba(26,122,74,0.1); }
.fi-navy { background: rgba(15,31,56,0.08); }
.fi-sky { background: rgba(91,164,207,0.1); }
.fi-gold { background: rgba(212,175,55,0.1); }
.fi-sand { background: rgba(232,220,200,0.4); }

.feature-card h3 {
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.feature-card--dark p {
  color: var(--text-on-dark-muted);
}

/* Feature card spanning 2 cols */
.feature-card--wide {
  grid-column: span 2;
}

.feature-card--featured {
  grid-column: span 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

/* --- Trust Section --- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.trust-card {
  text-align: center;
  padding: 32px 24px;
}

.trust-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.trust-card h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.trust-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Marketplace Section --- */
.marketplace-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.gear-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.gear-tag {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  background: rgba(26,122,74,0.08);
  border: 1px solid rgba(26,122,74,0.2);
  color: var(--green-600);
}

/* Flow visual */
.flow-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.flow-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 0;
}

.flow-marker {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--green-600);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.flow-content h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.flow-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.flow-connector {
  width: 2px;
  height: 20px;
  background: var(--green-400);
  opacity: 0.2;
  margin-left: 17px;
}

/* --- Community Section --- */
.community-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.community-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all var(--duration-md) var(--ease);
}

.community-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.community-card-icon {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.community-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-on-dark);
}

.community-card p {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-on-dark-muted);
}

/* --- CTA Banner --- */
.cta-banner {
  text-align: center;
  padding: 96px 24px;
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 100%);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(26,122,74,0.1) 0%, transparent 65%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

.cta-banner h2 {
  color: var(--text-on-dark);
  margin-bottom: 20px;
}

.cta-banner p {
  color: var(--text-on-dark-muted);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 36px;
}

/* --- FAQ Accordion --- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 48px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-md) var(--ease);
}

.faq-item:hover {
  border-color: var(--gray-300);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  background: var(--white);
  transition: background var(--duration) var(--ease);
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--gray-400);
  transition: transform var(--duration-md) var(--ease);
  font-size: 1.2rem;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-md) var(--ease);
}

.faq-item.active .faq-answer {
  max-height: 400px;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--gray-900);
}

.footer-logo-icon {
  width: 28px;
  height: 28px;
  background: var(--green-600);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--gray-500);
  transition: color var(--duration) var(--ease);
}

.footer-links a:hover {
  color: var(--gray-900);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--gray-400);
}

/* --- Page Header (for interior pages) --- */
.page-header {
  padding: 140px 0 80px;
  background: var(--navy-900);
  color: var(--text-on-dark);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(26,122,74,0.1) 0%, transparent 65%);
  pointer-events: none;
}

.page-header h1 {
  position: relative;
  z-index: 1;
  margin-bottom: 16px;
}

.page-header p {
  position: relative;
  z-index: 1;
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-on-dark-muted);
  max-width: 560px;
}

/* --- Content Blocks (About, etc.) --- */
.content-block {
  padding: var(--section-pad) 0;
}

.content-block h2 {
  margin-bottom: 20px;
}

.content-block p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.content-block p:last-child {
  margin-bottom: 0;
}

/* Split layout */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

/* Value cards */
.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.value-card {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all var(--duration-md) var(--ease);
}

.value-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.value-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.value-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Stat Cards --- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.stat-card {
  text-align: center;
  padding: 32px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}

.stat-card h3 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--green-400);
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.stat-card p {
  font-size: 0.85rem;
  color: var(--text-on-dark-muted);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero-sub {
    margin: 0 auto 40px;
  }

  .btn-group {
    justify-content: center;
  }

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

  .feature-card--featured {
    grid-column: span 2;
  }

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

@media (max-width: 768px) {
  :root {
    --section-pad: 72px;
  }

  .nav-links { display: none; }
  .nav-mobile-toggle { display: flex; }

  .hero {
    min-height: auto;
    padding: 120px 0 72px;
  }

  .hero-inner {
    text-align: left;
  }

  .hero-sub {
    margin: 0 0 32px;
  }

  .btn-group {
    justify-content: flex-start;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .step-card:not(:last-child)::after {
    display: none;
  }

  .feature-grid,
  .feature-grid--2col {
    grid-template-columns: 1fr;
  }

  .feature-card--wide,
  .feature-card--featured {
    grid-column: span 1;
  }

  .feature-card--featured {
    grid-template-columns: 1fr;
  }

  .trust-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .community-cards {
    grid-template-columns: 1fr;
  }

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

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

  .footer-inner {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

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

@media (max-width: 480px) {
  h1 {
    font-size: 2.2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    width: 100%;
  }

  .chat-preview {
    margin: 0 -12px;
  }
}

/* --- Animations --- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-up {
  animation: fadeUp 0.6s var(--ease) forwards;
  opacity: 0;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }

/* --- Utility --- */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mx-auto { margin-left: auto; margin-right: auto; }