.landing-demo-section {
  padding: clamp(56px, 8vw, 96px) 24px;
}

.landing-demo-shell {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  border-radius: 30px;
  overflow: hidden;
  color: var(--demo-text, #f8fbff);
  background:
    radial-gradient(circle at top right, var(--demo-accent-soft, rgba(0, 230, 118, 0.18)), transparent 34%),
    linear-gradient(145deg, var(--demo-surface, #0b1118), var(--demo-surface-alt, #121a24));
  border: 1px solid var(--demo-border, rgba(255, 255, 255, 0.14));
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.22);
}

.landing-demo-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.04) 18%, transparent 36%),
    radial-gradient(circle at bottom left, rgba(255, 255, 255, 0.04), transparent 28%);
  pointer-events: none;
}

.landing-demo-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(280px, 1.05fr) minmax(320px, 0.95fr);
  gap: 24px;
  padding: clamp(26px, 4vw, 40px);
}

.landing-demo-copy,
.landing-demo-panel {
  border-radius: 24px;
}

.landing-demo-copy {
  padding: clamp(12px, 2vw, 22px);
}

.landing-demo-lang-switch {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-bottom: 14px;
}

.landing-demo-lang-btn {
  min-width: 52px;
  min-height: 34px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--demo-border, rgba(255, 255, 255, 0.14));
  background: rgba(255, 255, 255, 0.03);
  color: var(--demo-text, #f8fbff);
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.landing-demo-lang-btn.active {
  background: var(--demo-accent, #00e676);
  color: #071016;
  border-color: transparent;
}

.landing-demo-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--demo-border, rgba(255, 255, 255, 0.14));
  background: rgba(255, 255, 255, 0.04);
  color: var(--demo-muted, rgba(255, 255, 255, 0.78));
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.landing-demo-kicker::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--demo-accent, #00e676);
  box-shadow: 0 0 16px var(--demo-accent, #00e676);
}

.landing-demo-title {
  margin: 18px 0 14px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.landing-demo-title span {
  color: var(--demo-accent, #00e676);
}

.landing-demo-sub {
  max-width: 60ch;
  margin: 0;
  color: var(--demo-muted, rgba(255, 255, 255, 0.78));
  font-size: 1rem;
  line-height: 1.7;
}

.landing-demo-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.landing-demo-pill {
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--demo-text, #f8fbff);
  font-size: 13px;
}

.landing-demo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.landing-demo-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 18px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.landing-demo-action:hover {
  transform: translateY(-1px);
}

.landing-demo-action.primary {
  background: var(--demo-accent, #00e676);
  color: #071016;
}

.landing-demo-action.secondary {
  color: var(--demo-text, #f8fbff);
  border: 1px solid var(--demo-border, rgba(255, 255, 255, 0.14));
  background: rgba(255, 255, 255, 0.03);
}

.landing-demo-panel {
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--demo-border, rgba(255, 255, 255, 0.14));
  background: rgba(7, 12, 18, 0.54);
  backdrop-filter: blur(12px);
}

.landing-demo-form {
  display: grid;
  gap: 14px;
}

.landing-demo-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.landing-demo-field {
  display: grid;
  gap: 8px;
}

.landing-demo-field label {
  color: var(--demo-muted, rgba(255, 255, 255, 0.78));
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.landing-demo-input {
  width: 100%;
  min-height: 50px;
  padding: 0 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--demo-text, #f8fbff);
  font: inherit;
}

.landing-demo-input::placeholder {
  color: var(--demo-muted, rgba(255, 255, 255, 0.5));
}

.landing-demo-input:focus {
  outline: none;
  border-color: var(--demo-accent, #00e676);
  box-shadow: 0 0 0 3px var(--demo-accent-soft, rgba(0, 230, 118, 0.18));
}

.landing-demo-submit {
  min-height: 52px;
  border: 0;
  border-radius: 16px;
  background: var(--demo-accent, #00e676);
  color: #071016;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.landing-demo-submit:hover:not(:disabled) {
  transform: translateY(-1px);
}

.landing-demo-submit:disabled {
  opacity: 0.7;
  cursor: wait;
}

.landing-demo-note {
  margin: 0;
  color: var(--demo-muted, rgba(255, 255, 255, 0.7));
  font-size: 13px;
}

.landing-demo-result {
  margin-top: 18px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  min-height: 220px;
}

.landing-demo-result h3 {
  margin: 0 0 16px;
  font-size: 1.25rem;
}

.landing-demo-result p {
  margin: 12px 0 0;
  color: var(--demo-muted, rgba(255, 255, 255, 0.78));
  line-height: 1.65;
}

.landing-demo-metric-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.95rem;
}

.landing-demo-metric-row:last-child {
  border-bottom: 0;
}

.landing-demo-metric-row span:last-child,
.landing-demo-metric-row strong {
  text-align: right;
}

.landing-demo-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.landing-demo-meta span {
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12px;
}

.landing-demo-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.landing-demo-list {
  margin: 0;
  padding-left: 18px;
  color: var(--demo-muted, rgba(255, 255, 255, 0.78));
}

.landing-demo-list li + li {
  margin-top: 8px;
}

.landing-demo-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  text-align: center;
  color: var(--demo-muted, rgba(255, 255, 255, 0.74));
}

@media (max-width: 980px) {
  .landing-demo-grid {
    grid-template-columns: 1fr;
  }

  .landing-demo-copy {
    padding-bottom: 0;
  }
}

@media (max-width: 640px) {
  .landing-demo-section {
    padding: 40px 16px 56px;
  }

  .landing-demo-grid {
    padding: 18px;
  }

  .landing-demo-fields,
  .landing-demo-columns {
    grid-template-columns: 1fr;
  }

  .landing-demo-title {
    font-size: 2rem;
  }

  .landing-demo-action,
  .landing-demo-submit {
    width: 100%;
  }
}