/* Reset & base
   ------------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background-color: #ffffff;
  color: #000000;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Layout helpers
   ------------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 4.5rem 0;
}

.section-light {
  background-color: #fafafa;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.75rem;
}

.section-title {
  font-size: 1.75rem;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

.section-subtitle {
  margin: 0;
  color: #666666;
  font-size: 0.98rem;
}

/* Header
   ------------------------------------------------------------------ */
.site-header {
  border-bottom: 1px solid #e5e5e5;
  background-color: #ffffff;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-image {
  height: 20.8px;
  width: auto;
  display: block;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.9rem;
}

.nav-link {
  position: relative;
  padding-bottom: 0.15rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background-color: #000000;
  transition: width 0.18s ease-out;
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  width: 100%;
}

/* Buttons
   ------------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.4rem;
  border-radius: 6px;
  border: none;
  font-size: 0.96rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.18s ease-out, box-shadow 0.18s ease-out,
    transform 0.1s ease-out;
}

.btn-primary {
  background-color: #008000;
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(0, 128, 0, 0.22);
}

.btn-primary:hover {
  background-color: #006600;
  box-shadow: 0 8px 22px rgba(0, 128, 0, 0.28);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 3px 10px rgba(0, 128, 0, 0.18);
}

.btn:focus-visible {
  outline: 2px solid #000000;
  outline-offset: 2px;
}

/* Hero
   ------------------------------------------------------------------ */
.hero {
  padding: 10rem 0 4.5rem;
}

.hero-inner {
  display: flex;
  justify-content: center;
}

.hero-content {
  max-width: 720px;
  text-align: center;
}

.hero-title {
  margin: 0 0 1.25rem;
  font-size: 2.3rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.underline-green {
  text-decoration: underline;
  text-decoration-color: #008000;
  text-decoration-thickness: 4px;
  text-underline-offset: 4px;
}

.hero-subtitle {
  margin: 0 0 2rem;
  color: #666666;
  font-size: 1rem;
}

.hero-cta {
  min-width: 11rem;
}

/* Cards & grids
   ------------------------------------------------------------------ */
.card-grid {
  display: grid;
  gap: 1.75rem;
}

.card-grid-3 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.card-grid-2 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.card {
  background-color: #ffffff;
  border-radius: 1rem;
  border: 1px solid #ececec;
  padding: 1.6rem 1.5rem 1.6rem;
}

.section-light .card {
  background-color: #ffffff;
}

.benefit-card {
  text-align: center;
}

.card-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid #e0e0e0;
  font-size: 1.1rem;
}

.card-title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  text-align: center;
}

.card-text {
  margin: 0;
  color: #666666;
  font-size: 0.95rem;
  text-align: center;
}

/* CTA section
   ------------------------------------------------------------------ */
.cta-section {
  background-color: #fafafa;
}

.cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

/* Ad formats
   ------------------------------------------------------------------ */
.format-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.format-visual {
  border-radius: 0.75rem;
  border: 1px dashed #dddddd;
  padding: 0.85rem;
}

.format-frame {
  border-radius: 0.6rem;
  border: 1px solid #e3e3e3;
  padding: 0.55rem;
  width: 100%;
  max-width: 260px;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.format-banner-strip {
  width: 100%;
  height: 100%;
  border-radius: 0.5rem;
  overflow: hidden;
  background-color: #ddeee1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.format-banner-image {
  width: 80%;
  max-width: 80%;
  max-height: 100%;
  margin: auto;
  object-fit: contain;
}

.format-modal-box {
  width: 70%;
  max-width: 260px;
  height: 70px;
  border-radius: 0.75rem;
  background-color: #ddeee1;
}

/* About / profiles
   ------------------------------------------------------------------ */
.profile-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: center;
  text-align: center;
}

.profile-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e5e5e5, #f4f4f4);
  flex-shrink: 0;
}

.profile-body {
  flex: 1;
}

.profile-social {
  display: flex;
  gap: 0.65rem;
  margin-top: 0.75rem;
  justify-content: center;
}

.social-link {
  width: 28px;
  height: 28px;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

.social-link:hover,
.social-link:focus-visible {
  border-color: #000000;
}

.social-icon {
  font-size: 0.9rem;
}

.social-icon img,
img.social-icon {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

/* Footer
   ------------------------------------------------------------------ */
.site-footer {
  border-top: 1px solid #e5e5e5;
  padding: 1.75rem 0 2.25rem;
  background-color: #ffffff;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}

.footer-logo {
  margin-bottom: 0.5rem;
}

.footer-text {
  margin: 0;
  color: #666666;
  font-size: 0.9rem;
  max-width: 360px;
}

.footer-nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.9rem;
}

.footer-link {
  position: relative;
  padding-bottom: 0.1rem;
}

.footer-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background-color: #000000;
  transition: width 0.18s ease-out;
}

.footer-link:hover::after,
.footer-link:focus-visible::after {
  width: 100%;
}

/* Responsive
   ------------------------------------------------------------------ */
@media (min-width: 640px) {
  .hero-title {
    font-size: 2.7rem;
  }

  .card-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .section {
    padding: 5rem 0;
  }

  .hero {
    padding: 10rem 0 5rem;
  }

  .hero-title {
    font-size: 3rem;
  }

  .card-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (max-width: 599.98px) {
  .main-nav {
    display: none;
  }

  .profile-card {
    flex-direction: column;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 0.96rem;
  }
}