:root {
  --teal: #0D4D4D;
  --teal-light: #0F6B6B;
  --amber: #F59E0B;
  --amber-dark: #D97706;
  --off-white: #FAFAF7;
  --dark: #1A1A1A;
  --gray-600: #525252;
  --gray-400: #A3A3A3;
  --gray-200: #E5E5E0;
}

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

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--off-white);
  color: var(--dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'DM Serif Display', serif;
  line-height: 1.2;
}

/* Navbar */
.navbar {
  padding: 1.25rem 2.5rem;
  border-bottom: 1px solid var(--gray-200);
  background: #fff;
}
.nav-inner {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
.nav-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.5rem;
  color: var(--teal);
}
.nav-tagline {
  font-size: 0.875rem;
  color: var(--gray-400);
}

/* Hero */
.hero {
  padding: 5rem 2.5rem 4rem;
  background: var(--teal);
  color: #fff;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.hero-headline {
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  color: #fff;
  margin-bottom: 1.25rem;
}
.hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
}

/* Chat widget */
.chat-window {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.25);
  font-family: 'DM Sans', sans-serif;
}
.chat-header {
  background: var(--teal);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
}
.chat-avatar::after {
  content: '';
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
}
.chat-meta { display: flex; flex-direction: column; }
.chat-name { font-size: 0.95rem; font-weight: 600; color: #fff; }
.chat-status { font-size: 0.8rem; color: rgba(255,255,255,0.6); }
.chat-body { padding: 1.25rem; display: flex; flex-direction: column; gap: 0.75rem; }
.msg {
  max-width: 80%;
  padding: 0.6rem 0.9rem;
  border-radius: 12px;
  font-size: 0.875rem;
  line-height: 1.4;
}
.msg-in {
  background: var(--gray-200);
  color: var(--dark);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}
.msg-out {
  background: var(--teal);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.msg-out.confirmed {
  background: #065F46;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.chat-typing {
  padding: 0 1.25rem 0.75rem;
  font-size: 0.8rem;
  color: var(--gray-400);
  font-style: italic;
}

/* Stats */
.stats {
  background: var(--dark);
  color: #fff;
  padding: 3rem 2.5rem;
}
.stats-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 0;
}
.stat { padding: 0 2rem; }
.stat-number {
  display: block;
  font-family: 'DM Serif Display', serif;
  font-size: 2.5rem;
  color: var(--amber);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stat-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.4;
}
.stat-divider {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.15);
}

/* Section eyebrow */
.section-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--amber);
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.section-heading {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--dark);
  margin-bottom: 3rem;
}

/* How it works */
.hiw { padding: 5rem 2.5rem; }
.hiw-inner { max-width: 1100px; margin: 0 auto; }
.hiw-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.hiw-step { position: relative; }
.step-num {
  font-family: 'DM Serif Display', serif;
  font-size: 3.5rem;
  color: var(--gray-200);
  line-height: 1;
  margin-bottom: 1rem;
}
.hiw-step h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.hiw-step p { font-size: 0.95rem; color: var(--gray-600); line-height: 1.6; }

/* Channels */
.channels { padding: 5rem 2.5rem; background: #fff; }
.channels-inner { max-width: 1100px; margin: 0 auto; }
.channel-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.channel-card {
  border: 1.5px solid var(--gray-200);
  border-radius: 12px;
  padding: 1.75rem 1.5rem;
}
.channel-icon {
  width: 52px;
  height: 52px;
  background: var(--off-white);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  margin-bottom: 1rem;
}
.channel-card h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
.channel-card p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.5;
}

/* Testimonial */
.testimonial {
  background: var(--teal);
  padding: 5rem 2.5rem;
  color: #fff;
}
.testimonial-inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}
.quote-mark {
  font-family: 'DM Serif Display', serif;
  font-size: 6rem;
  color: var(--amber);
  line-height: 0.5;
  margin-bottom: 1rem;
}
blockquote {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  line-height: 1.7;
  color: rgba(255,255,255,0.9);
  margin-bottom: 2rem;
}
cite { font-style: normal; }
.cite-name {
  display: block;
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}
.cite-role {
  display: block;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
}

/* Closing */
.closing { padding: 5rem 2.5rem; }
.closing-inner { max-width: 680px; margin: 0 auto; text-align: center; }
.closing h2 {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  margin-bottom: 1.25rem;
}
.closing p {
  font-size: 1.05rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* Footer */
.footer {
  border-top: 1px solid var(--gray-200);
  padding: 2rem 2.5rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.footer-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.25rem;
  color: var(--teal);
}
.footer-copy { font-size: 0.875rem; color: var(--gray-400); }

/* Mobile */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-widget { order: -1; }
  .stats-inner { grid-template-columns: 1fr; gap: 2rem; }
  .stat-divider { display: none; }
  .hiw-steps { grid-template-columns: 1fr; }
  .channel-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .channel-grid { grid-template-columns: 1fr; }
  .hero { padding: 3rem 1.5rem 2rem; }
}