.ptc-wrap {
  --bg1: #0f172a;
  --bg2: #1d4ed8;
  --bg3: #7c2d12;
  --bg4: #14532d;
  --bg5: #581c87;
  background: linear-gradient(135deg, var(--bg1), #111827);
  color: #fff;
  border-radius: 18px;
  padding: 24px;
  font-family: Arial, Helvetica, sans-serif;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
  min-height: 72vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: background 0.8s ease;
}
.ptc-wrap.ptc-theme-1 { background: linear-gradient(135deg, #0f172a, #111827); }
.ptc-wrap.ptc-theme-2 { background: linear-gradient(135deg, #0b1e44, #1d4ed8); }
.ptc-wrap.ptc-theme-3 { background: linear-gradient(135deg, #3b1207, #7c2d12); }
.ptc-wrap.ptc-theme-4 { background: linear-gradient(135deg, #0b2813, #14532d); }
.ptc-wrap.ptc-theme-5 { background: linear-gradient(135deg, #2d0a3d, #581c87); }

.ptc-topbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}
.ptc-structure-label {
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  opacity: .8;
}
.ptc-level-title {
  font-size: 38px;
  font-weight: 700;
  margin-top: 6px;
}
.ptc-logo-wrap {
  min-width: 120px;
  text-align: right;
}
.ptc-logo {
  max-width: 180px;
  max-height: 90px;
  object-fit: contain;
}
.ptc-main {
  text-align: center;
  margin: 20px 0;
}
.ptc-timer {
  font-size: clamp(64px, 13vw, 150px);
  line-height: 1;
  font-weight: 800;
  margin-bottom: 20px;
}
.ptc-blinds-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 0 auto 20px;
  max-width: 900px;
}
.ptc-blinds-box {
  background: rgba(255,255,255,.08);
  padding: 18px;
  border-radius: 14px;
  backdrop-filter: blur(4px);
}
.ptc-blinds-box span {
  display: block;
  font-size: 15px;
  opacity: .8;
  margin-bottom: 8px;
}
.ptc-blinds-box strong {
  font-size: clamp(28px, 5vw, 48px);
}
.ptc-next-level {
  font-size: 22px;
  margin-bottom: 20px;
}
.ptc-controls {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}
.ptc-btn {
  border: 0;
  background: #fff;
  color: #111827;
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}
.ptc-btn:hover { opacity: .92; }

.ptc-bottom-banner {
  margin-top: 16px;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid rgba(255,255,255,.15);
  padding-top: 16px;
}
.ptc-banner-link {
  display: inline-block;
  max-width: 100%;
}
.ptc-banner-image {
  max-width: 100%;
  max-height: 90px;
  object-fit: contain;
  border-radius: 12px;
}
.ptc-no-banner {
  opacity: .7;
  font-size: 14px;
}

.ptc-wrap:fullscreen {
  width: 100vw;
  height: 100vh;
  border-radius: 0;
  padding: 28px;
}

@media (max-width: 760px) {
  .ptc-wrap { padding: 18px; min-height: 80vh; }
  .ptc-topbar { align-items: center; }
  .ptc-level-title { font-size: 28px; }
  .ptc-logo { max-width: 120px; max-height: 60px; }
  .ptc-blinds-row { grid-template-columns: 1fr; }
  .ptc-next-level { font-size: 18px; }
  .ptc-btn { width: calc(50% - 8px); }
}