:root {
  color-scheme: light;
  --background: #f7f9f6;
  --surface: #ffffff;
  --surface-strong: #eef4ee;
  --text: #0b130d;
  --muted: #566158;
  --green: #087c2d;
  --green-dark: #075f24;
  --green-hover: #08782c;
  --green-border: #0ca43a;
  --line: #d5dfd6;
  --pulse-color: rgba(8, 124, 45, 0.24);
  --pulse-fade: rgba(8, 124, 45, 0.04);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--background);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--background);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

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

main {
  width: 100%;
}

.hero {
  display: grid;
  justify-items: center;
  width: 100%;
  margin: 0;
  padding: clamp(24px, 4vw, 48px) 0 32px;
  text-align: center;
}

.kicker {
  margin: 0 16px 10px;
  color: var(--green);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  width: min(calc(100% - 32px), 1120px);
  margin: 0 auto clamp(22px, 3vw, 36px);
  font-size: clamp(2.75rem, 7vw, 6rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h1 span {
  color: var(--green);
}

h2 {
  max-width: 780px;
  margin: 0 auto 24px;
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: 0;
}

.video-shell {
  position: relative;
  justify-self: stretch;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: 0;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #000000;
}

.video-shell iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(calc(100% - 32px), 520px);
  min-height: 60px;
  margin: 24px 16px 0;
  padding: 0 26px;
  border: 2px solid var(--green-border);
  border-radius: 4px;
  color: #ffffff;
  background: var(--green-dark);
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 900;
  letter-spacing: 0;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.3);
  animation: cta-pulse 2.2s ease-in-out infinite;
  transition: background 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible {
  background: var(--green-hover);
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.36);
  animation-play-state: paused;
}

.button:focus-visible,
.faq-list summary:focus-visible {
  outline: 3px solid rgba(57, 255, 20, 0.42);
  outline-offset: 3px;
}

.button:active {
  transform: translateY(0);
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.24);
}

@keyframes cta-pulse {
  0%,
  100% {
    box-shadow:
      0 0 0 0 var(--pulse-color),
      0 12px 26px rgba(0, 0, 0, 0.3);
  }

  50% {
    box-shadow:
      0 0 0 10px var(--pulse-fade),
      0 12px 26px rgba(0, 0, 0, 0.3);
  }
}

.training,
.faq,
.final-cta,
.footer {
  width: min(calc(100% - 32px), 1120px);
  margin: 0 auto;
}

.training,
.faq,
.final-cta {
  padding: clamp(44px, 6vw, 72px) 0;
  border-top: 1px solid var(--line);
  text-align: center;
}

.training {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(38px, 7vw, 88px);
  text-align: left;
}

.training h2 {
  margin: 0 0 28px;
  color: var(--green);
  font-size: clamp(2rem, 4vw, 3.3rem);
  line-height: 1.05;
}

.training-list {
  display: grid;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.training-list li {
  position: relative;
  padding-left: 38px;
  color: var(--text);
  font-size: clamp(1rem, 1.6vw, 1.16rem);
  line-height: 1.55;
}

.training-list li::before {
  content: ">";
  position: absolute;
  top: 0.22em;
  left: 0;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  color: #ffffff;
  background: var(--green);
  font-size: 0.82rem;
  font-weight: 900;
}

.faq-list {
  display: grid;
  gap: 10px;
  max-width: 760px;
  margin: 0 auto;
  text-align: left;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface);
}

.faq-list details[open] {
  border-color: var(--green-dark);
  background: var(--surface-strong);
}

.faq-list summary {
  padding: 18px;
  font-weight: 800;
  cursor: pointer;
}

.faq-list details[open] summary {
  color: var(--green);
}

.faq-list p {
  margin: -2px 18px 18px;
  color: var(--muted);
}

.final-cta {
  display: grid;
  justify-items: center;
}

.final-cta .button {
  margin-top: 4px;
}

.footer {
  padding: 18px 0 22px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.footer p {
  max-width: 760px;
  margin: 0 auto;
  color: #657168;
  font-size: 0.78rem;
}

@media (max-width: 640px) {
  .hero {
    padding-top: 22px;
    padding-bottom: 26px;
  }

  h1 {
    margin-bottom: 20px;
    font-size: clamp(2.65rem, 13vw, 4.1rem);
  }

  .button {
    min-height: 56px;
    margin-top: 20px;
  }

  .training,
  .faq,
  .final-cta {
    padding: 42px 0;
  }

  .training {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .training h2 {
    margin-bottom: 22px;
  }

  .training-list {
    gap: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    animation: none;
    transition: none;
  }
}