:root {
  --sber-green: #21a038;
  --sber-green-deep: #148f2e;
  --sber-green-dark: #0b5c22;
  --sber-green-soft: #e8f7eb;
  --ink: #102216;
  --ink-soft: #3d5244;
  --ink-faint: #6d8274;
  --line: #d7e6db;
  --white: #ffffff;
  --font: "Manrope", "Segoe UI", sans-serif;
  --display: "Nunito", "Manrope", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--ink);
}

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

.landing-body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 10%, rgba(33, 160, 56, 0.18), transparent 36%),
    radial-gradient(circle at 88% 0%, rgba(33, 160, 56, 0.1), transparent 30%),
    linear-gradient(165deg, #f7fcf8 0%, #eef6f0 55%, #f8fbf9 100%);
}

.landing {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.landing-header {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 36px;
}

.landing-mark {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  flex-shrink: 0;
  background:
    radial-gradient(circle at 35% 30%, #7dff9a, transparent 42%),
    linear-gradient(145deg, var(--sber-green), var(--sber-green-dark));
}

.landing-eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--sber-green-deep);
  font-weight: 700;
}

.landing-header h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(32px, 5vw, 44px);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.landing-lead {
  margin: 10px 0 0;
  max-width: 52ch;
  color: var(--ink-soft);
  line-height: 1.55;
  font-size: 16px;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.platform-card {
  position: relative;
  display: grid;
  gap: 10px;
  align-content: start;
  min-height: 220px;
  padding: 22px 20px 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.platform-card:hover {
  transform: translateY(-3px);
  border-color: #a8d5b4;
  background: var(--white);
}

.platform-card--ready {
  border-color: #8fcea0;
  box-shadow: 0 0 0 3px rgba(33, 160, 56, 0.1);
}

.platform-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--sber-green-soft);
  color: var(--sber-green-dark);
  font-size: 11px;
  font-weight: 800;
}

.platform-badge--soon {
  background: #f3f5f4;
  color: var(--ink-faint);
}

.platform-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: var(--sber-green-dark);
  background: var(--sber-green-soft);
}

.platform-card h2 {
  margin: 4px 0 0;
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: -0.02em;
}

.platform-card p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.45;
  font-size: 14px;
}

.platform-cta {
  margin-top: auto;
  padding-top: 8px;
  color: var(--sber-green-deep);
  font-weight: 800;
  font-size: 14px;
}

.platform-back {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  color: var(--sber-green-dark);
  font-weight: 700;
  font-size: 13px;
  font-family: var(--font);
  box-shadow: 0 8px 24px rgba(16, 34, 22, 0.08);
}

.platform-back:hover {
  border-color: #a8d5b4;
}

body:has(.platform-back) .studio {
  padding-top: 64px;
}

.concept-page {
  min-height: 100vh;
  padding: 72px 24px 48px;
  background:
    radial-gradient(circle at 10% 0%, rgba(33, 160, 56, 0.14), transparent 34%),
    #f5faf6;
}

.concept-shell {
  max-width: 980px;
  margin: 0 auto;
}

.concept-shell h1 {
  margin: 0 0 8px;
  font-family: var(--display);
  font-size: 36px;
  letter-spacing: -0.03em;
}

.concept-kicker {
  margin: 0 0 8px;
  color: var(--sber-green-deep);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.concept-lead {
  margin: 0 0 28px;
  max-width: 60ch;
  color: var(--ink-soft);
  line-height: 1.55;
}

.concept-frame {
  border-radius: 24px;
  border: 1px solid var(--line);
  background: var(--white);
  overflow: hidden;
  min-height: 420px;
}

.concept-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: #f8fcf9;
  font-size: 13px;
  font-weight: 700;
}

.concept-canvas {
  padding: 28px;
  display: grid;
  gap: 16px;
}

.concept-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.concept-tile {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, #f3faf4, #ffffff);
  min-height: 110px;
  padding: 14px;
}

.concept-tile strong {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
}

.concept-tile span {
  color: var(--ink-faint);
  font-size: 12px;
  line-height: 1.4;
}

.tv-frame {
  aspect-ratio: 16 / 9;
  border-radius: 18px;
  border: 10px solid #1a2420;
  background:
    radial-gradient(circle at 80% 30%, rgba(33, 160, 56, 0.25), transparent 35%),
    linear-gradient(145deg, #0f1c14, #1c3324 55%, #102216);
  color: #e8f7eb;
  padding: 28px;
  display: grid;
  align-content: space-between;
}

.tv-frame h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 28px;
}

.tv-frame p {
  margin: 8px 0 0;
  opacity: 0.85;
  max-width: 40ch;
}

.tv-rail {
  display: flex;
  gap: 10px;
  overflow: hidden;
}

.tv-card {
  flex: 0 0 140px;
  height: 84px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.web-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.web-chip {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--sber-green-soft);
  color: var(--sber-green-dark);
  font-size: 12px;
  font-weight: 700;
}

.web-hero {
  border-radius: 18px;
  padding: 24px;
  background: linear-gradient(145deg, #1f9f37, #0e5f21);
  color: white;
  min-height: 140px;
}

.web-hero h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 26px;
}

.stub-note {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 14px;
  background: #fff8e8;
  border: 1px solid #f0d59a;
  color: #6a4b00;
  font-size: 13px;
  line-height: 1.45;
}

@media (max-width: 720px) {
  .landing {
    padding: 28px 16px 40px;
  }

  .landing-header {
    flex-direction: column;
  }

  .concept-row {
    grid-template-columns: 1fr;
  }

  .platform-back {
    left: 10px;
    right: 10px;
    justify-content: center;
  }
}

.content-details{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:24px;margin:32px 0}.content-details article{padding:24px;background:#fff;border:1px solid #dce5dd;border-radius:16px}.content-details h2{font-size:19px;line-height:1.35;margin:0 0 12px}.content-details p{font-size:15px;line-height:1.7;margin:0;color:#425348}