:root {
  --bg: #f7fafc;
  --bg-soft: #eef5f6;
  --ink: #0c2a33;
  --ink-soft: #3b5560;
  --muted: #6b8089;
  --line: #e3edef;
  --brand: #0fb5b0;
  --brand-deep: #0a7e7a;
  --accent: #1d6cf3;
  --warm: #ffb8a8;
  --warm-deep: #e8654d;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px rgba(12, 42, 51, 0.06), 0 4px 12px rgba(12, 42, 51, 0.05);
  --shadow-md: 0 8px 24px rgba(12, 42, 51, 0.08), 0 2px 6px rgba(12, 42, 51, 0.04);
  --shadow-lg: 0 24px 60px rgba(12, 42, 51, 0.14), 0 6px 16px rgba(12, 42, 51, 0.06);
  --radius: 14px;
  --radius-lg: 22px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

h1, h2, h3, h4 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
  line-height: 1.15;
}
h1 { font-size: clamp(2.4rem, 4.6vw, 3.6rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.9rem, 3.2vw, 2.6rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1.05rem; }
em { font-style: italic; color: var(--brand-deep); }

p { margin: 0; color: var(--ink-soft); }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-deep);
  background: rgba(15, 181, 176, 0.10);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.eyebrow.light {
  color: #b6f0ee;
  background: rgba(255, 255, 255, 0.10);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.97rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn-sm { padding: 9px 16px; font-size: 0.88rem; }
.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 110%);
  color: white;
  box-shadow: 0 6px 18px rgba(15, 108, 243, 0.28);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(15, 108, 243, 0.35); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { background: var(--white); border-color: #c8d8db; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(160%) blur(12px);
  background: rgba(247, 250, 252, 0.78);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand-mark { display: inline-flex; }
.brand-name {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  gap: 28px;
  font-size: 0.94rem;
  color: var(--ink-soft);
}
.nav-links a:hover { color: var(--ink); }
@media (max-width: 760px) {
  .nav-links { display: none; }
}

/* Hero */
.hero {
  position: relative;
  padding: 80px 0 90px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -10% -10% auto auto;
  width: 60%;
  height: 70%;
  background: radial-gradient(closest-side, rgba(15, 181, 176, 0.18), transparent 70%);
  z-index: 0;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 50%;
  height: 60%;
  background: radial-gradient(closest-side, rgba(29, 108, 243, 0.12), transparent 70%);
  z-index: 0;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 50px; }
}

.lede {
  font-size: 1.18rem;
  margin-top: 22px;
  max-width: 540px;
  color: var(--ink-soft);
}
.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.trust-item { display: flex; flex-direction: column; }
.trust-item strong {
  font-family: 'Fraunces', serif;
  font-size: 1.6rem;
  color: var(--brand-deep);
}
.trust-item span {
  font-size: 0.84rem;
  color: var(--muted);
  max-width: 160px;
  line-height: 1.4;
}
.trust-divider {
  width: 1px;
  height: 36px;
  background: var(--line);
}
@media (max-width: 540px) {
  .trust-divider { display: none; }
}

/* Hero card */
.hero-card {
  position: relative;
  display: flex;
  justify-content: center;
}
.card-shell {
  width: 100%;
  max-width: 460px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.card-head {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 14px 18px;
  background: #fafdfd;
  border-bottom: 1px solid var(--line);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #ff6b5b; }
.dot-y { background: #ffc44d; }
.dot-g { background: #5fd28a; }
.card-title {
  margin-left: 12px;
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 500;
}
.card-body { padding: 22px; }
.row {
  display: grid;
  grid-template-columns: 1.6fr 0.8fr auto;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}
.row:last-of-type { border-bottom: none; }
.lab { font-size: 0.92rem; color: var(--ink-soft); font-weight: 500; }
.val { font-family: 'Fraunces', serif; font-weight: 600; color: var(--ink); text-align: right; font-variant-numeric: tabular-nums; }
.badge {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
}
.badge-warn  { background: rgba(245, 158, 11, 0.14);  color: #b45309; }
.badge-ok    { background: rgba(15, 181, 176, 0.14);  color: var(--brand-deep); }
.badge-alert { background: rgba(232, 101, 77, 0.14);  color: #b1432e; }

.card-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 18px 0 14px;
  position: relative;
}
.card-divider::before, .card-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
.card-divider span {
  padding: 0 14px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-deep);
}

.explainer p {
  background: linear-gradient(180deg, rgba(15, 181, 176, 0.06), rgba(29, 108, 243, 0.05));
  padding: 14px 16px;
  border-radius: 12px;
  border-left: 3px solid var(--brand);
  color: var(--ink);
  font-size: 0.95rem;
}
.actions {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.actions li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.check {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(15, 181, 176, 0.15);
  color: var(--brand-deep);
  font-size: 0.75rem;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Section heads */
.section-head { max-width: 720px; margin-bottom: 50px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { margin-bottom: 18px; }
.section-lede {
  font-size: 1.08rem;
  color: var(--ink-soft);
}

/* Problem */
.problem { padding: 90px 0; background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
@media (max-width: 880px) { .problem-grid { grid-template-columns: 1fr; } }
.problem-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.problem-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.problem-num {
  font-family: 'Fraunces', serif;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--brand);
  margin-bottom: 14px;
}
.problem-card h3 { margin-bottom: 10px; }

/* Solution */
.solution { padding: 100px 0; }
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 20px;
}
@media (max-width: 980px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px;
  text-align: left;
}
.step-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(15, 181, 176, 0.15), rgba(29, 108, 243, 0.12));
  color: var(--brand-deep);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.step h4 { margin-bottom: 8px; font-family: 'Inter', sans-serif; font-weight: 600; }
.step p { font-size: 0.94rem; }

.not-replacement {
  margin-top: 56px;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 24px 28px;
  background: linear-gradient(135deg, rgba(255, 184, 168, 0.18), rgba(255, 255, 255, 0));
  border: 1px solid rgba(232, 101, 77, 0.22);
  border-radius: var(--radius-lg);
}
.nr-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(232, 101, 77, 0.12);
  color: var(--warm-deep);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.not-replacement p { color: var(--ink); font-size: 1rem; }

/* Features */
.features {
  padding: 100px 0;
  background: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
@media (max-width: 980px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .feature-grid { grid-template-columns: 1fr; } }
.feature {
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--bg);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.feature-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(15, 181, 176, 0.18), rgba(29, 108, 243, 0.12));
  color: var(--brand-deep);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.feature h3 { margin-bottom: 8px; }
.feature p { font-size: 0.95rem; }

/* Impact */
.impact {
  padding: 100px 0;
  background: linear-gradient(135deg, #0a7e7a 0%, #0c2a33 70%, #0c2a33 100%);
  color: white;
  position: relative;
  overflow: hidden;
}
.impact::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto auto;
  width: 60%;
  height: 60%;
  background: radial-gradient(closest-side, rgba(15, 181, 176, 0.25), transparent 70%);
}
.impact-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 880px) { .impact-grid { grid-template-columns: 1fr; gap: 40px; } }
.impact h2 { color: white; margin-bottom: 18px; }
.impact p { color: #c4dadd; font-size: 1.08rem; max-width: 520px; }

.impact-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.stat {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 22px;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
}
.stat strong {
  font-family: 'Fraunces', serif;
  font-size: 2.2rem;
  font-weight: 600;
  color: white;
  display: block;
  margin-bottom: 6px;
}
.stat span {
  color: #b6c8cd;
  font-size: 0.9rem;
  line-height: 1.4;
}
.stat:first-child {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(15, 181, 176, 0.22), rgba(29, 108, 243, 0.16));
  border-color: rgba(15, 181, 176, 0.35);
}

/* CTA */
.cta {
  padding: 100px 0;
  text-align: center;
}
.cta-inner { max-width: 620px; margin: 0 auto; }
.cta h2 { margin-bottom: 14px; }
.cta p { font-size: 1.08rem; margin-bottom: 28px; }
.cta-form {
  display: flex;
  gap: 10px;
  max-width: 480px;
  margin: 0 auto;
  flex-wrap: wrap;
}
.cta-form input {
  flex: 1;
  min-width: 220px;
  padding: 14px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--white);
  font-family: inherit;
  font-size: 0.97rem;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.cta-form input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(15, 181, 176, 0.15);
}
.cta-success {
  margin-top: 18px;
  color: var(--brand-deep);
  font-weight: 600;
}

/* Footer */
.footer {
  padding: 40px 0 60px;
  background: var(--white);
  border-top: 1px solid var(--line);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}
.footer-note {
  font-size: 0.84rem;
  color: var(--muted);
  max-width: 540px;
}
.footer-copy { font-size: 0.84rem; color: var(--muted); }