* {
  box-sizing: border-box;
}

:root {
  --window-max-width: 1120px;
  --window-radius: 24px;
  --section-side-padding: 24px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(circle at 50% -20%, #ffffff 0%, #f5f5f7 52%, #ececf0 100%);
  color: #1d1d1f;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

body::after {
  content: "";
  position: fixed;
  right: -140px;
  bottom: -140px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0) 68%);
  pointer-events: none;
  z-index: -1;
}

.hero {
  max-width: var(--window-max-width);
  margin: 0 auto;
  padding: 72px var(--section-side-padding) 80px;
  position: relative;
}

.hero-content {
  text-align: center;
  margin: 0 auto 36px;
  max-width: 980px;
  position: relative;
  z-index: 1;
}

.hero::before {
  content: "";
  position: absolute;
  top: -24px;
  left: 50%;
  width: min(86vw, 980px);
  height: 320px;
  transform: translateX(-50%);
  background: radial-gradient(
    ellipse at center,
    rgba(120, 174, 255, 0.25) 0%,
    rgba(120, 174, 255, 0.14) 36%,
    rgba(120, 174, 255, 0.06) 58%,
    rgba(120, 174, 255, 0) 84%
  );
  filter: blur(26px);
  pointer-events: none;
}

.hero-title {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.25rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.hero-title-line {
  display: block;
}

.mobile-only-break {
  display: none;
}

.hero-subtitle {
  margin: 18px 0 0;
  font-size: clamp(1.05rem, 2vw, 1.75rem);
  line-height: 1.35;
  font-weight: 500;
  color: #4f4f53;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: #06c;
  box-shadow: 0 10px 22px rgba(0, 102, 204, 0.32);
}

.button-primary:hover {
  background: #005bb5;
}

.video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  border-radius: var(--window-radius);
  overflow: hidden;
  background: #000;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.55);
}

.video-wrapper::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
  pointer-events: none;
  z-index: 2;
}

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

.hero > .hero-content + .video-wrapper {
  margin-top: 8px;
}

.video-action {
  margin-top: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.video-action .button {
  margin-inline: auto;
}

.panel {
  width: min(100%, var(--window-max-width));
  margin: 0 auto;
  border-radius: var(--window-radius);
  padding: 56px 44px;
}

.session {
  padding: 0 var(--section-side-padding) 84px;
}

.session-inner {
  position: relative;
  background: linear-gradient(160deg, #ffffff 0%, #fbfbfd 60%, #f3f6ff 100%);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.08), inset 0 0 0 1px rgba(255, 255, 255, 0.9);
}

.session-inner::before {
  content: "";
  position: absolute;
  top: 18px;
  right: 24px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 102, 204, 0.12) 0%, rgba(0, 102, 204, 0) 70%);
  pointer-events: none;
}

.session-title {
  margin: 0;
  font-size: clamp(1.9rem, 3.3vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.session-text {
  margin: 16px 0 0;
  max-width: 780px;
  font-size: clamp(1.02rem, 1.7vw, 1.25rem);
  line-height: 1.45;
  color: #4f4f53;
}

.session-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.session-list li {
  position: relative;
  font-size: clamp(1rem, 1.55vw, 1.3rem);
  line-height: 1.45;
  color: #3a3a3c;
  padding: 14px 18px 14px 48px;
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff 0%, #f5f5f7 100%);
  box-shadow: inset 0 0 0 1px rgba(29, 29, 31, 0.06);
}

.session-list li::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 16px;
  width: 22px;
  height: 22px;
  transform: translateY(-50%);
  border-radius: 999px;
  background-color: #ffffff;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='22' viewBox='0 0 22 22' fill='none'%3E%3Ccircle cx='11' cy='11' r='10.5' stroke='%23d2d2d7'/%3E%3Cpath d='M7 11.3L9.5 13.8L15 8.4' stroke='%231d1d1f' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  box-shadow: 0 4px 10px rgba(29, 29, 31, 0.08);
}

.cta {
  padding: 0 var(--section-side-padding) 100px;
}

.cta-inner {
  position: relative;
  overflow: hidden;
  background: linear-gradient(145deg, #0a84ff 0%, #0066cc 45%, #084b9a 100%);
  box-shadow: 0 28px 64px rgba(0, 70, 160, 0.32);
  text-align: center;
}

.cta-inner::before {
  content: "";
  position: absolute;
  top: -100px;
  left: 50%;
  width: 620px;
  height: 260px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(255, 255, 255, 0.32) 0%, rgba(255, 255, 255, 0) 72%);
  filter: blur(20px);
  pointer-events: none;
}

.cta-title {
  position: relative;
  z-index: 1;
  margin: 0;
  color: #fff;
  font-size: clamp(2rem, 3.8vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.cta-text {
  position: relative;
  z-index: 1;
  margin: 16px auto 0;
  max-width: 680px;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  line-height: 1.4;
}

.cta-button {
  position: relative;
  z-index: 1;
  margin-top: 30px;
  color: #0058b8;
  background: #fff;
  box-shadow: 0 16px 26px rgba(0, 0, 0, 0.18);
}

.cta-button:hover {
  background: #f2f7ff;
}

@media (max-width: 767px) {
  :root {
    --window-radius: 16px;
    --section-side-padding: 16px;
  }

  body::after {
    right: -180px;
    bottom: -180px;
    width: 320px;
    height: 320px;
    opacity: 0.75;
  }

  .hero {
    padding: 34px var(--section-side-padding) 44px;
  }

  .hero::before {
    top: -44px;
    width: min(96vw, 560px);
    height: 220px;
    filter: blur(22px);
  }

  .hero-content {
    margin-bottom: 18px;
  }

  .hero-title {
    font-size: clamp(1.5rem, 6.4vw, 1.9rem);
    line-height: 1.12;
  }

  .mobile-only-break {
    display: block;
  }

  .hero-subtitle {
    margin-top: 18px;
    font-size: clamp(0.9rem, 3.85vw, 1.06rem);
    line-height: 1.34;
  }

  .video-wrapper {
    border-radius: var(--window-radius);
  }

  .video-wrapper::before {
    height: 56px;
  }

  .video-action {
    margin-top: 16px;
  }

  .video-action .button {
    width: 100%;
    max-width: 340px;
    min-height: 48px;
    font-size: 0.96rem;
  }

  .session {
    padding: 0 var(--section-side-padding) 42px;
  }

  .session-inner {
    padding: 24px 16px;
  }

  .session-inner::before {
    top: 8px;
    right: 8px;
    width: 120px;
    height: 120px;
  }

  .session-title {
    font-size: clamp(1.6rem, 8vw, 2.15rem);
  }

  .session-text {
    margin-top: 12px;
    font-size: 0.98rem;
    line-height: 1.42;
  }

  .session-list {
    margin-top: 16px;
    gap: 12px;
  }

  .session-list li {
    padding: 12px 12px 12px 40px;
    font-size: 0.95rem;
    line-height: 1.38;
  }

  .session-list li::before {
    left: 14px;
    width: 18px;
    height: 18px;
    background-size: 18px 18px;
  }

  .cta {
    padding: 0 var(--section-side-padding) 48px;
  }

  .cta-inner {
    padding: 30px 16px;
  }

  .panel {
    border-radius: var(--window-radius);
  }

  .cta-inner::before {
    width: 380px;
    height: 200px;
  }

  .cta-title {
    font-size: clamp(1.65rem, 8vw, 2.3rem);
    line-height: 1.12;
  }

  .cta-text {
    margin-top: 12px;
    font-size: clamp(0.96rem, 4.4vw, 1.1rem);
    line-height: 1.36;
  }

  .cta-button {
    margin-top: 18px;
    width: 100%;
    max-width: 320px;
  }
}

@media (max-width: 390px) {
  .hero {
    padding-top: 28px;
  }

  .button {
    padding-inline: 14px;
  }

  .panel {
    padding: 20px 14px;
  }
}