:root {
  --color-teal-dark: #1c6d74;
  --color-teal-light: #3fa4ad;
  --color-blue: #1e88e5;
  --color-purple: #6a1b9a;
  --color-bright-teal: #26c6da;
  --color-coral: #ff7043;
  --color-charcoal: #212121;
  --color-soft-white: #fafafa;
  --font-heading: "Poppins", sans-serif;
  --font-body: "Inter", sans-serif;
  --max-content-width: 1120px;
  --radius: 16px;
  --shadow: 0 18px 45px rgba(18, 62, 75, 0.2);
  --shadow-soft: 0 12px 32px rgba(18, 62, 75, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-charcoal);
  background: linear-gradient(135deg, rgba(28, 109, 116, 0.1), rgba(63, 164, 173, 0.05)) fixed,
    #ffffff;
  line-height: 1.6;
  min-height: 100vh;
}

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

a:hover {
  text-decoration: underline;
}

header.hero {
  background: radial-gradient(circle at top left, rgba(63, 164, 173, 0.25), transparent 55%),
    linear-gradient(135deg, var(--color-teal-dark), var(--color-teal-light));
  color: var(--color-soft-white);
  padding: 32px 24px 96px;
}

.hero__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: var(--max-content-width);
  margin: 0 auto 48px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-soft-white);
}

.brand__mark {
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.2));
}

.brand__name {
  font-size: 1rem;
  text-transform: uppercase;
}

.nav {
  margin-left: auto;
}

.nav__list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 24px;
  margin: 0;
  padding: 0;
}

.nav__link {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  color: rgba(250, 250, 250, 0.85);
  transition: color 0.2s ease;
  position: relative;
}

.nav__link:hover,
.nav__link:focus {
  color: #ffffff;
  text-decoration: none;
}

.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-blue), var(--color-bright-teal));
}

.nav__toggle {
  display: none;
  border: 1px solid rgba(250, 250, 250, 0.45);
  border-radius: 999px;
  background: transparent;
  padding: 10px 14px;
  gap: 6px;
  align-items: center;
  cursor: pointer;
  color: var(--color-soft-white);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav__toggle:focus-visible {
  outline: 2px solid var(--color-bright-teal);
  outline-offset: 4px;
}

.nav__toggle-bar {
  width: 18px;
  height: 2px;
  display: block;
  background: currentColor;
  border-radius: 999px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav__toggle-bar + .nav__toggle-bar {
  margin-top: 4px;
}

.nav__toggle.is-active .nav__toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav__toggle.is-active .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav__toggle.is-active .nav__toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.hero__content {
  margin: 0 auto;
  max-width: var(--max-content-width);
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 600;
  opacity: 0.75;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.75rem, 6vw, 4.8rem);
  margin: 20px 0 18px;
  line-height: 1.1;
}

.hero__subtitle {
  font-size: 1.25rem;
  max-width: 540px;
  margin-bottom: 36px;
  font-weight: 500;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__note {
  margin-top: 20px;
  font-weight: 500;
}

main {
  padding: 0 24px 120px;
}

.section {
  margin: 96px auto 0;
  max-width: var(--max-content-width);
}

.section__intro {
  max-width: 720px;
  margin-bottom: 32px;
}

.section__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0 0 16px;
}

.section__lead {
  margin: 0;
  font-size: 1.1rem;
  color: rgba(33, 33, 33, 0.8);
}

.section--alt {
  background: rgba(63, 164, 173, 0.08);
  padding: 72px 48px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.section--highlight {
  background: linear-gradient(135deg, rgba(28, 109, 116, 0.12), rgba(63, 164, 173, 0.18));
  padding: 72px 48px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: #0f3136;
}

.section--cta {
  background: linear-gradient(135deg, rgba(30, 136, 229, 0.1), rgba(106, 27, 154, 0.12));
  padding: 64px 48px;
  border-radius: var(--radius);
  margin-top: 96px;
  text-align: center;
  box-shadow: var(--shadow-soft);
}

.section__content {
  max-width: 720px;
  margin: 0 auto;
}

.section__content h2 {
  margin-bottom: 16px;
}

.section__content p {
  font-size: 1.125rem;
  margin-bottom: 32px;
}

.grid {
  display: grid;
  gap: 32px;
}

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: #ffffff;
  padding: 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card h3 {
  font-family: var(--font-heading);
  margin-top: 0;
}

.card--outline {
  background: transparent;
  border: 2px solid rgba(28, 109, 116, 0.2);
  box-shadow: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 600;
  border-radius: 999px;
  padding: 12px 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: none;
  cursor: pointer;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-teal-dark), var(--color-teal-light));
  color: var(--color-soft-white);
  box-shadow: 0 16px 30px rgba(28, 109, 116, 0.25);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(28, 109, 116, 0.3);
  text-decoration: none;
}

.btn--accent {
  background: linear-gradient(135deg, var(--color-blue), var(--color-purple));
  color: var(--color-soft-white);
  box-shadow: 0 16px 30px rgba(30, 136, 229, 0.25);
}

.btn--accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(30, 136, 229, 0.3);
  text-decoration: none;
}

.btn--ghost {
  background: rgba(250, 250, 250, 0.1);
  color: var(--color-soft-white);
  border: 1px solid rgba(250, 250, 250, 0.35);
}

.btn--ghost:hover {
  transform: translateY(-2px);
  box-shadow: none;
  background: rgba(250, 250, 250, 0.18);
  text-decoration: none;
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  row-gap: 12px;
}

.list li {
  padding-left: 32px;
  position: relative;
  font-weight: 500;
}

.list li::before {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-blue), var(--color-bright-teal));
  position: absolute;
  left: 0;
  top: 4px;
}

.list--compact li {
  font-weight: 400;
  line-height: 1.5;
  padding-left: 24px;
}

.list--compact li::before {
  width: 10px;
  height: 10px;
  top: 8px;
}

.list--accent li::before {
  background: linear-gradient(135deg, var(--color-purple), var(--color-bright-teal));
}

.cta-panel {
  background: rgba(30, 136, 229, 0.1);
  border: 1px solid rgba(30, 136, 229, 0.25);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}

.cta-panel__text {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.stat {
  background: rgba(255, 255, 255, 0.92);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow-soft);
}

.stat__value {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  margin: 0 0 12px;
  color: var(--color-teal-dark);
}

.stat__label {
  margin: 0;
  font-weight: 500;
  color: rgba(33, 33, 33, 0.75);
}

.testimonial {
  margin: 48px auto 0;
  max-width: 720px;
  background: rgba(255, 255, 255, 0.9);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.testimonial blockquote {
  margin: 0 0 20px;
  font-size: 1.2rem;
  font-style: italic;
}

.testimonial figcaption {
  font-weight: 600;
  font-family: var(--font-heading);
  color: rgba(33, 33, 33, 0.75);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(28, 109, 116, 0.12);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.ad-unit {
  background: #ffffff;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  border-top: 6px solid var(--color-purple);
}

.ad-unit h3 {
  margin-top: 0;
}

.faq details {
  background: #ffffff;
  border-radius: var(--radius);
  margin-bottom: 16px;
  padding: 20px 24px;
  box-shadow: var(--shadow);
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-family: var(--font-heading);
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  float: right;
  font-weight: 600;
}

.faq details[open] summary::after {
  content: "−";
}

.faq p {
  margin-top: 12px;
}

.pricing {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.pricing__card {
  background: #ffffff;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  border-top: 6px solid var(--color-bright-teal);
}

.pricing__card:nth-child(2) {
  border-top-color: var(--color-coral);
}

.pricing__price {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin: 12px 0 24px;
}

.footer {
  background: #0f3136;
  color: rgba(255, 255, 255, 0.82);
  padding: 48px 24px;
}

.footer__content {
  max-width: var(--max-content-width);
  margin: 0 auto;
  font-size: 0.9rem;
}

.footer__disclaimer {
  margin-bottom: 16px;
}

@media (max-width: 960px) {
  .hero__top {
    flex-wrap: wrap;
    gap: 16px;
  }

  .hero__cta {
    order: 3;
  }

  .nav__toggle {
    display: inline-flex;
  }

  .nav {
    width: 100%;
    order: 4;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .nav.nav--open {
    max-height: 400px;
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: rgba(15, 49, 54, 0.85);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
  }

  .nav__link::after {
    bottom: -4px;
  }

  header.hero {
    padding: 32px 20px 80px;
  }

  main {
    padding: 0 20px 96px;
  }
}

@media (max-width: 640px) {
  .section {
    margin-top: 72px;
  }

  .section--alt,
  .section--highlight,
  .section--cta {
    padding: 48px 24px;
  }

  .card,
  .ad-unit,
  .pricing__card,
  .cta-panel,
  .testimonial,
  .stat,
  .faq details {
    padding: 24px;
  }

  .hero__subtitle {
    font-size: 1.1rem;
  }

  .badge-row {
    gap: 8px;
  }

  .badge {
    font-size: 0.75rem;
    letter-spacing: 0.06em;
  }
}