:root {
  color-scheme: dark;
  font-family: Arial, Helvetica, sans-serif;
  color: #f5fafb;
  background: #081d28;
  font-synthesis: none;
  -webkit-text-size-adjust: 100%;
}
* { box-sizing: border-box; }
body { margin: 0; }
.page {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 40px;
  background: radial-gradient(ellipse at 85% 15%, #174544 0, transparent 55%), #081d28;
}
.offer {
  display: grid;
  grid-template-columns: 1.12fr 1fr;
  width: min(1100px, 100%);
  border: 1px solid #34505a;
  border-radius: 24px;
  overflow: hidden;
  background: #0c2430;
  box-shadow: 0 32px 90px #0005;
}
.offer__content { padding: clamp(28px, 4vw, 60px); min-width: 0; }
.eyebrow { margin: 0 0 30px; font-size: 12px; font-weight: 700; letter-spacing: 2.5px; color: #91e8c4; }
.eyebrow span { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #7fe3b7; margin-right: 8px; }
h1 { margin: 0; font-size: clamp(40px, 4.8vw, 62px); font-weight: 700; line-height: 1.05; letter-spacing: -.055em; }
h1 em { font-family: Georgia, 'Times New Roman', serif; color: #9becce; font-weight: 400; letter-spacing: -.045em; }
.topics { display: flex; flex-wrap: wrap; gap: 10px 16px; list-style: none; padding: 0; margin: 28px 0 22px; color: #bfd1d7; font-size: 11px; letter-spacing: 1px; }
.topics li { padding-bottom: 8px; border-bottom: 1px solid #44616b; }
.description { margin: 0 0 28px; color: #b9cdd3; font-size: 16px; line-height: 1.8; max-width: 420px; }
.description strong { color: #c1ffe2; font-weight: 700; }
.join {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  padding: 19px 18px; min-height: 64px; border-radius: 10px;
  color: #052c24; background: linear-gradient(120deg, #99efc8, #61d8b2);
  border: 1px solid #abf3d8; text-decoration: none; font-size: 13px; font-weight: 800;
  line-height: 1.5; box-shadow: 0 8px 28px #66dbb218;
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.join svg { width: 25px; height: 25px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.join__arrow { margin-left: auto; font-size: 24px; font-weight: 400; }
.join:focus-visible { outline: 3px solid #fff; outline-offset: 5px; }
@media (hover: hover) { .join:hover { transform: translateY(-3px); box-shadow: 0 14px 32px #66dbb22e; } }
.join:active { transform: translateY(1px); }
.note { margin: 16px 0 0; color: #91adb8; font-size: 12px; line-height: 1.6; text-align: center; }
.offer__visual { position: relative; min-height: 100%; background: #0b2331; }
.offer__visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 61% center; }
.offer__visual::after { content: ''; position: absolute; inset: 0; background: linear-gradient(0deg, #082432f0, #08243220 60%), linear-gradient(90deg, #0c24304d, transparent); }
.visual-caption { position: absolute; bottom: 30px; left: 28px; right: 28px; z-index: 1; display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid #c6e8f03d; padding-top: 18px; font-size: 10px; letter-spacing: 1.5px; color: #c4d7dc; }
@media (max-width: 760px) {
  .page { padding: 24px 16px; }
  .offer { grid-template-columns: 1fr; border-radius: 20px; }
  .offer__content { padding: 32px 26px; }
  .offer__visual { grid-row: 1; height: 155px; min-height: 0; }
  .offer__visual img { object-position: center 43%; }
  .visual-caption { display: none; }
  .eyebrow { margin-bottom: 22px; }
  h1 { font-size: clamp(38px, 8.5vw, 58px); }
  .desktop-break { display: none; }
  .topics { margin-top: 23px; }
  .join { font-size: 12px; gap: 9px; padding-inline: 12px; }
}
@media (max-width: 360px) { .offer__content { padding: 28px 20px; } .join__arrow { display: none; } }
@media (prefers-reduced-motion: reduce) { .join { transition: none; } .join:hover, .join:active { transform: none; } }