:root {
  color-scheme: light;
  --ink: #122f2c;
  --muted: #536560;
  --teal: #0f6d65;
  --teal-dark: #053f3a;
  --teal-deep: #032d29;
  --cream: #fbfaf1;
  --surface: #ffffff;
  --line: #d7e0da;
  --gold: #ffc857;
  --aqua: #bce7e3;
  --shadow: 0 24px 70px rgba(4, 45, 41, 0.18);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration-color: rgba(15, 109, 101, 0.35);
  text-underline-offset: 0.18em;
}

img {
  max-width: 100%;
  height: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 5vw, 72px);
  background: rgba(251, 250, 241, 0.9);
  border-bottom: 1px solid rgba(215, 224, 218, 0.75);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  box-shadow: 0 8px 22px rgba(4, 45, 41, 0.18);
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 3vw, 28px);
  color: var(--muted);
  font-weight: 700;
}

nav a {
  text-decoration: none;
}

nav a:hover {
  color: var(--teal);
}

.intro {
  position: relative;
  min-height: min(760px, 82svh);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: clamp(56px, 8vw, 96px) clamp(20px, 6vw, 90px);
  background:
    radial-gradient(circle at 72% 46%, rgba(255, 200, 87, 0.28), transparent 24rem),
    linear-gradient(135deg, #fdfcf3 0%, #eaf6f3 48%, #cdebe5 100%);
}

.intro-bg {
  position: absolute;
  right: max(-60px, -4vw);
  bottom: -90px;
  width: min(590px, 58vw);
  opacity: 0.96;
  filter: drop-shadow(0 34px 70px rgba(3, 45, 41, 0.25));
}

.intro-content {
  position: relative;
  z-index: 1;
  max-width: 650px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.88rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1,
h2 {
  margin: 0;
  line-height: 1.05;
  color: var(--ink);
}

h1 {
  max-width: 12ch;
  font-size: clamp(3.1rem, 11vw, 7rem);
  font-weight: 900;
}

h2 {
  font-size: clamp(1.55rem, 4vw, 2.8rem);
  font-weight: 850;
}

.intro-copy {
  max-width: 620px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 850;
  text-decoration: none;
}

.button.primary {
  color: white;
  background: var(--teal-dark);
}

.button.secondary {
  color: var(--teal-dark);
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(15, 109, 101, 0.18);
}

.section {
  padding: clamp(54px, 8vw, 94px) clamp(20px, 6vw, 90px);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-grid article,
.calculator,
.trust,
.policy {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 16px 45px rgba(18, 47, 44, 0.08);
}

.feature-grid article {
  padding: clamp(22px, 3vw, 34px);
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 20px;
  border-radius: 8px;
  color: var(--teal-deep);
  background: var(--gold);
  font-weight: 950;
}

.feature-grid h2 {
  font-size: 1.35rem;
}

.feature-grid p,
.calculator-section p,
.trust p,
.policy p {
  color: var(--muted);
}

.calculator-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: start;
  background: linear-gradient(180deg, rgba(188, 231, 227, 0.42), rgba(251, 250, 241, 0));
}

.calculator-section > div {
  position: sticky;
  top: 100px;
}

.calculator {
  display: grid;
  gap: 16px;
  padding: clamp(18px, 4vw, 30px);
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 780;
}

.input-wrap {
  display: flex;
  align-items: center;
  min-height: 54px;
  gap: 8px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  font-weight: 850;
}

input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font: inherit;
  font-size: 1.1rem;
}

.results {
  margin-top: 8px;
  padding: 22px;
  border-radius: 8px;
  color: white;
  background: linear-gradient(145deg, var(--teal-dark), var(--teal-deep));
}

.total span,
dt {
  color: var(--aqua);
}

.total strong {
  display: block;
  margin-top: 4px;
  font-size: clamp(2.3rem, 8vw, 4rem);
  line-height: 1;
}

dl {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(188, 231, 227, 0.25);
}

dl div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

dt,
dd {
  margin: 0;
}

dd {
  font-weight: 850;
}

#savings {
  color: var(--gold);
}

.trust {
  width: min(980px, calc(100% - 40px));
  margin: 0 auto clamp(44px, 8vw, 86px);
  padding: clamp(26px, 5vw, 46px);
  text-align: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 200, 87, 0.18), transparent 16rem),
    var(--surface);
}

.policy-page {
  padding: clamp(36px, 7vw, 72px) clamp(20px, 6vw, 90px);
}

.policy {
  width: min(880px, 100%);
  margin: 0 auto;
  padding: clamp(26px, 5vw, 54px);
}

.policy h1 {
  max-width: none;
  font-size: clamp(2.4rem, 7vw, 4.6rem);
}

.policy h2 {
  margin-top: 32px;
  font-size: 1.35rem;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(20px, 6vw, 90px);
  color: rgba(255, 255, 255, 0.82);
  background: var(--teal-deep);
}

.site-footer p {
  margin: 0;
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

@media (max-width: 820px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    justify-content: space-between;
  }

  .intro {
    min-height: 78svh;
    align-items: start;
    padding-top: 48px;
  }

  .intro-bg {
    width: min(420px, 86vw);
    right: -70px;
    bottom: -56px;
    opacity: 0.38;
  }

  .feature-grid,
  .calculator-section {
    grid-template-columns: 1fr;
  }

  .calculator-section > div {
    position: static;
  }
}

@media (max-width: 480px) {
  .brand span {
    font-size: 0.95rem;
  }

  nav {
    gap: 10px;
    font-size: 0.92rem;
  }

  h1 {
    font-size: clamp(2.6rem, 18vw, 4rem);
  }

  .actions,
  .button {
    width: 100%;
  }

  dl div {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }
}