:root {
  --bg: #ffffff;
  --bg-soft: #f6f8f7;
  --bg-soft-2: #eef5f0;
  --panel: #ffffff;
  --panel-2: #f8faf9;
  --text: #102118;
  --muted: #607467;
  --line: #dde8df;
  --line-strong: #cad8ce;
  --brand: #1fb85b;
  --brand-dark: #129346;
  --brand-soft: #e8f8ee;
  --brand-soft-2: #d5f3df;
  --shadow: 0 20px 60px rgba(17, 45, 24, 0.08);
  --shadow-soft: 0 14px 36px rgba(17, 45, 24, 0.06);
  --radius: 24px;
  --container: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31, 184, 91, 0.08), transparent 22%),
    radial-gradient(circle at top right, rgba(31, 184, 91, 0.05), transparent 24%),
    linear-gradient(180deg, #ffffff 0%, #fbfcfb 46%, #f7faf8 100%);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(221, 232, 223, 0.88);
}

.nav {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
.brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 8px 18px rgba(31, 184, 91, 0.18));
}
.brand-copy strong {
  display: block;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}
.brand-copy span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: .84rem;
}

.menu, .nav-actions, .hero-actions, .cta-actions, .trust-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.menu a {
  color: #446151;
  font-size: .96rem;
  font-weight: 500;
}
.menu a:hover { color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 14px;
  font-weight: 700;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  border: 1px solid transparent;
}
.btn:hover { transform: translateY(-1px); }
.btn-lg { min-height: 56px; padding: 0 24px; }

.btn-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand) 100%);
  box-shadow: 0 14px 34px rgba(31, 184, 91, 0.26);
}
.btn-primary:hover { box-shadow: 0 18px 38px rgba(31, 184, 91, 0.32); }

.btn-secondary,
.btn-ghost {
  color: var(--text);
  background: #ffffff;
  border-color: var(--line);
}
.btn-secondary:hover,
.btn-ghost:hover { background: #f8fbf9; }

.btn-dark-outline {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.22);
  color: #ffffff;
}
.btn-dark-outline:hover {
  background: rgba(255,255,255,.18);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 58px 0 34px;
}
.hero-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 18%, rgba(31, 184, 91, 0.18), transparent 28%),
    linear-gradient(180deg, rgba(232, 248, 238, 0.85) 0%, rgba(255,255,255,0) 82%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 44px;
  align-items: center;
}

.eyebrow, .kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--brand-soft);
  border: 1px solid #d5eadc;
  color: #1b7c42;
  font-size: .84rem;
  font-weight: 700;
}
.kicker-dark {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.16);
  color: #d6ffe3;
}

.hero-copy h1,
.section-heading h2,
.cta-panel h2 {
  margin: 18px 0 14px;
  letter-spacing: -0.05em;
  line-height: .96;
}
.hero-copy h1 {
  max-width: 11ch;
  font-size: clamp(3rem, 6vw, 5.6rem);
}
.lead, .section-heading p, .benefit-copy p, .cta-panel p {
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.72;
}
.trust-row {
  margin-top: 20px;
}
.trust-row span {
  padding: 9px 13px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid var(--line);
  color: #355544;
  font-size: .88rem;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(17, 45, 24, 0.04);
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 26px;
}
.proof-grid article {
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff 0%, #f7fbf8 100%);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}
.proof-grid strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1rem;
}
.proof-grid span { color: var(--muted); line-height: 1.55; }

.hero-panel {
  position: relative;
  min-height: 670px;
}
.floating-note {
  position: absolute;
  z-index: 2;
  border-radius: 20px;
  background: rgba(255,255,255,.94);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.top-note {
  top: 18px;
  left: -8px;
  width: 250px;
  padding: 18px;
}
.bottom-note {
  right: -8px;
  bottom: 30px;
  width: 240px;
  padding: 18px;
}
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: .76rem;
  font-weight: 800;
}
.pill.success {
  color: #156f38;
  background: var(--brand-soft);
}
.floating-note strong,
.signal-grid strong,
.stack-card strong,
.feature-card h3,
.timeline-item h3,
.faq-item h3 {
  display: block;
  letter-spacing: -0.03em;
}
.floating-note strong { margin: 12px 0 6px; font-size: 1.1rem; }
.floating-note small,
.bottom-note li,
.signal-grid span,
.stack-card span,
.stack-card p,
.feature-card p,
.timeline-item p,
.faq-item p { color: var(--muted); }
.bottom-note .label {
  display: block;
  color: #1b7c42;
  font-weight: 800;
  margin-bottom: 10px;
}
.bottom-note ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.bottom-note li {
  position: relative;
  padding-left: 18px;
  font-weight: 600;
}
.bottom-note li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
}

.app-shot {
  position: absolute;
  inset: 64px 18px 92px 18px;
  overflow: hidden;
  border-radius: 30px;
  background: linear-gradient(180deg, #ffffff 0%, #f7faf8 100%);
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(17, 45, 24, 0.12);
}
.app-top {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #fbfdfb, #f7faf8);
}
.app-top > span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #c9d8ce;
}
.app-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-left: 10px;
}
.app-brand img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}
.app-brand strong { font-size: .95rem; }

.app-body {
  display: grid;
  grid-template-columns: 190px 1fr;
  min-height: 100%;
}
.app-body aside {
  padding: 20px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, #fbfdfb 0%, #f3f8f5 100%);
}
.side-pill {
  padding: 12px 14px;
  border-radius: 14px;
  color: #547064;
  margin-bottom: 10px;
  background: rgba(255,255,255,.72);
  border: 1px solid transparent;
  font-weight: 600;
}
.side-pill.active {
  color: #ffffff;
  background: linear-gradient(135deg, var(--brand-dark), var(--brand));
  box-shadow: 0 10px 24px rgba(31, 184, 91, 0.22);
}
.app-body section { padding: 20px; }
.chat-summary,
.mini-stats article,
.signal-grid article,
.feature-card,
.stack-card,
.timeline-item,
.faq-item {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
}
.chat-summary {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 18px;
}
.chat-summary p { margin: 8px 0 0; }
.badge {
  align-self: start;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 800;
}
.badge.success {
  background: var(--brand-soft);
  color: #156f38;
}
.mini-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 16px 0;
}
.mini-stats article {
  padding: 16px;
}
.mini-stats span {
  display: block;
  color: var(--muted);
  font-size: .88rem;
}
.mini-stats strong {
  display: block;
  margin-top: 8px;
  font-size: 1.22rem;
  letter-spacing: -0.04em;
}
.conversation-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 8px 0 14px;
  color: #466255;
}
.conversation-head small { color: var(--muted); }
.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot.ok { background: var(--brand); box-shadow: 0 0 0 6px rgba(31, 184, 91, 0.12); }
.conversation {
  display: grid;
  gap: 12px;
}
.bubble {
  max-width: 78%;
  padding: 14px 16px;
  border-radius: 18px;
  line-height: 1.55;
  border: 1px solid var(--line);
}
.bubble.left {
  background: #f8fbf9;
}
.bubble.right {
  margin-left: auto;
  color: #ffffff;
  background: linear-gradient(135deg, var(--brand-dark), var(--brand));
  border-color: transparent;
}

.signal-band {
  padding: 18px 0 0;
}
.signal-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.signal-grid article { padding: 22px; }
.signal-grid strong { font-size: 1.02rem; margin-bottom: 8px; }

.section { padding: 98px 0; }
.section-soft {
  background: linear-gradient(180deg, rgba(246,248,247,0.84), rgba(239,245,240,0.56));
  border-top: 1px solid #edf2ee;
  border-bottom: 1px solid #edf2ee;
}
.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}
.section-heading.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}
.section-heading h2,
.cta-panel h2 {
  font-size: clamp(2.1rem, 4vw, 3.6rem);
}
.feature-grid,
.faq-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.feature-card,
.faq-item,
.timeline-item,
.stack-card {
  padding: 26px;
}
.feature-card .icon {
  width: 54px;
  height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--brand-soft);
  color: #16733b;
  font-weight: 900;
  margin-bottom: 18px;
}
.feature-card h3,
.timeline-item h3,
.stack-card strong,
.faq-item h3 {
  font-size: 1.2rem;
  margin: 0 0 12px;
}
.feature-card p,
.timeline-item p,
.stack-card p,
.faq-item p,
.check-list li {
  line-height: 1.68;
}

.channels-grid {
  display: grid;
  grid-template-columns: .98fr 1.02fr;
  gap: 28px;
  align-items: start;
}
.check-list {
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
  display: grid;
  gap: 14px;
}
.check-list li {
  position: relative;
  padding-left: 28px;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-dark), var(--brand));
  box-shadow: 0 0 0 6px rgba(31, 184, 91, 0.10);
}
.channel-stack {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.stack-card span {
  display: block;
  margin-bottom: 10px;
  font-size: .84rem;
  font-weight: 800;
  color: #1b7c42;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.stack-card.accent {
  background: linear-gradient(180deg, #ffffff 0%, #f1faf4 100%);
  border-color: #cfe6d7;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.step {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: #156f38;
  font-size: .78rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-wrap { padding-top: 40px; }
.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 38px;
  border-radius: 30px;
  background:
    radial-gradient(circle at top right, rgba(69, 255, 140, 0.22), transparent 22%),
    linear-gradient(135deg, #0f2015 0%, #15351f 52%, #165628 100%);
  color: #ffffff;
  box-shadow: 0 30px 90px rgba(17, 45, 24, 0.24);
}
.cta-copy { max-width: 760px; }
.cta-copy p { color: rgba(231, 246, 236, 0.84); }
.cta-logo {
  width: 68px;
  height: 68px;
  object-fit: contain;
  margin-bottom: 18px;
  filter: drop-shadow(0 10px 24px rgba(69, 255, 140, 0.18));
}

.reveal { opacity: 1; transform: none; }
.delay-1 { transition-delay: .08s; }
.delay-2 { transition-delay: .16s; }

@media (max-width: 1100px) {
  .hero-grid,
  .channels-grid,
  .cta-panel {
    grid-template-columns: 1fr;
  }
  .timeline-grid,
  .signal-grid,
  .feature-grid,
  .faq-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-panel {
    min-height: 720px;
  }
}

@media (max-width: 820px) {
  .menu { display: none; }
  .hero { padding-top: 34px; }
  .proof-grid,
  .channel-stack,
  .timeline-grid,
  .signal-grid,
  .feature-grid,
  .faq-grid,
  .mini-stats {
    grid-template-columns: 1fr;
  }
  .hero-copy h1 { max-width: 100%; }
  .hero-panel {
    min-height: auto;
  }
  .app-shot,
  .top-note,
  .bottom-note {
    position: relative;
    inset: auto;
    left: auto;
    right: auto;
    top: auto;
    bottom: auto;
    width: 100%;
  }
  .top-note,
  .bottom-note {
    margin-bottom: 16px;
  }
  .app-shot {
    min-height: 640px;
    margin-bottom: 16px;
  }
}

@media (max-width: 640px) {
  .nav {
    min-height: 76px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .brand { width: 100%; justify-content: center; }
  .nav-actions { width: 100%; justify-content: center; }
  .app-body {
    grid-template-columns: 1fr;
  }
  .app-body aside {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .chat-summary {
    flex-direction: column;
  }
  .cta-panel {
    padding: 28px 22px;
  }
}