:root {
  --navy: #0a2540;
  --green: #2a7d4f;
  --green-dark: #1a5c35;
  --tint: #f1f7f5;
  --page-bg: #eef2f6;
  --card-shadow: 0 12px 32px -14px rgba(10, 37, 64, 0.28);
  --header-h: 56px;
}

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

html {
  scroll-behavior: smooth;
}

html,
body {
  overflow-x: hidden;
  max-width: 100%;
}

body {
  font-family: "Poppins", system-ui, -apple-system, sans-serif;
  background: var(--page-bg);
  color: var(--navy);
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
}

/* ── Page container ── */
.page {
  max-width: 520px;
  margin: 0 auto;
  background: #ffffff;
  padding-bottom: 8px;
}

/* ── Sections & spacing ── */
.section {
  padding: 0 16px;
}

.hero {
  padding-top: 24px;
}

.hero-cta {
  margin-top: 20px;
}

.img-section {
  margin-top: 64px;
}

#contact {
  margin-top: 64px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

/* ── Image card ── */
.image-card {
  border-radius: 20px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(10, 37, 64, 0.05);
}

.image-card img {
  width: 100%;
  height: auto;
}

/* ── Buttons ── */
.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.1s ease;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--green);
  color: #fff;
}

.btn-primary:hover {
  filter: brightness(1.08);
}

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

.btn-white {
  background: #fff;
  color: var(--green-dark);
}

.btn-white:hover {
  filter: brightness(0.96);
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.65);
}

/* ── Hero CTA card ── */
.cta-card {
  background: var(--tint);
  border-radius: 20px;
  padding: 24px 22px;
  text-align: center;
  border: 1px solid rgba(42, 125, 79, 0.12);
}

.cta-text {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--navy);
  margin: 0 auto 18px;
  max-width: 34ch;
}

/* ── Contact section ── */
.contact {
  background: var(--green-dark);
  border-radius: 22px;
  margin-left: 16px;
  margin-right: 16px;
  padding: 40px 24px;
  text-align: center;
  color: #fff;
}

.contact h2 {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 12px;
}

.contact p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  max-width: 36ch;
  margin: 0 auto 26px;
}

/* ── Footer ── */
.site-footer {
  max-width: 520px;
  margin: 0 auto;
  background: var(--navy);
  color: #fff;
  text-align: center;
  padding: 28px 24px 40px;
}

.footer-brand {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 6px;
}

.site-footer p {
  font-size: 12px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
}

/* ── Desktop spacing ── */
@media (min-width: 768px) {
  .img-section {
    margin-top: 88px;
  }

  #contact {
    margin-top: 88px;
  }
}