:root {
      --bg: #05060a;
      --bg-alt: #0b0d14;
      --accent: #ff4b8b;
      --accent-soft: rgba(255,75,139,0.25);
      --text: #f5f7ff;
      --muted: #9aa0b8;
      --card: #11131b;
      --border: #232633;
      --radius-xl: 26px;
      --radius-md: 14px;
      --shadow-soft: 0 24px 60px rgba(0,0,0,0.55);
      --transition: all 0.45s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      min-height: 100vh;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
        "Segoe UI", sans-serif;
      color: var(--text);
      background: radial-gradient(circle at top, #15182a 0, #05060a 55%);
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 40px 20px;
      transition: background 0.45s ease;
    }

    .shell {
      width: 100%;
      max-width: 1120px;
      background: linear-gradient(
        135deg,
        rgba(255,255,255,0.02),
        rgba(255,255,255,0.04)
      );
      border-radius: var(--radius-xl);
      border: 1px solid rgba(255,255,255,0.06);
      box-shadow: var(--shadow-soft);
      backdrop-filter: blur(26px);
      padding: 32px 32px 28px;
      display: grid;
      grid-template-columns: minmax(0, 3fr) minmax(0, 2.4fr);
      gap: 32px;
    }

    @media (max-width: 900px) {
      .shell {
        grid-template-columns: 1fr;
        padding: 24px 20px 22px;
      }
    }

    .top-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .brand-logo {
      width: 32px;
      height: 32px;
      border-radius: 999px;
      background: conic-gradient(
        from 210deg,
        #ff4b8b,
        #ffb347,
        #4b5bff,
        #00f5ff,
        #ff4b8b
      );
      box-shadow: 0 0 0 1px rgba(0,0,0,0.4);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #05060a;
      font-size: 16px;
      font-weight: 700;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .brand-title {
      font-size: 15px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      font-weight: 600;
    }

    .brand-sub {
      font-size: 11px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.16em;
    }

    .theme-toggle {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.16em;
      color: var(--muted);
    }

    .theme-toggle input {
      display: none;
    }

    .toggle-label {
      width: 46px;
      height: 24px;
      border-radius: 999px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.16);
      display: flex;
      align-items: center;
      padding: 2px;
      cursor: pointer;
      position: relative;
      transition: var(--transition);
    }

    .toggle-knob {
      width: 18px;
      height: 18px;
      border-radius: 999px;
      background: radial-gradient(circle at 30% 20%, #ffffff, #cfd3ff);
      box-shadow: 0 6px 16px rgba(0,0,0,0.45);
      transform: translateX(0);
      transition: var(--transition);
    }

    #themeSwitch:checked + .toggle-label .toggle-knob {
      transform: translateX(20px);
      background: radial-gradient(circle at 30% 20%, #ff4b8b, #ffb347);
    }

    .hero {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.18em;
      color: var(--muted);
    }

    .hero-tag-pill {
      padding: 4px 10px;
      border-radius: 999px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.14);
      font-size: 10px;
    }

    .hero-title {
      font-size: 32px;
      line-height: 1.15;
      letter-spacing: 0.02em;
    }

    .hero-title span.accent {
      background: linear-gradient(120deg, #ff4b8b, #ffb347, #4b5bff);
      -webkit-background-clip: text;
      color: transparent;
    }

    .hero-sub {
      font-size: 13px;
      color: var(--muted);
      max-width: 420px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 6px;
    }

    .btn-primary {
      padding: 10px 18px;
      border-radius: 999px;
      border: none;
      cursor: pointer;
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.16em;
      background: linear-gradient(135deg, #ff4b8b, #ffb347);
      color: #05060a;
      box-shadow: 0 12px 28px rgba(0,0,0,0.55);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-secondary {
      padding: 10px 16px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,0.18);
      background: rgba(255,255,255,0.04);
      color: var(--text);
      cursor: pointer;
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.16em;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .meta-row {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 10px;
      font-size: 11px;
      color: var(--muted);
    }

    .meta-pill {
      padding: 4px 10px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,0.12);
      background: rgba(255,255,255,0.02);
    }

    .right-panel {
      border-radius: var(--radius-md);
      border: 1px solid rgba(255,255,255,0.12);
      background: radial-gradient(circle at 0% 0%, rgba(255,75,139,0.18), transparent 55%),
                  radial-gradient(circle at 100% 100%, rgba(75,91,255,0.18), transparent 55%),
                  rgba(5,6,10,0.92);
      padding: 18px 18px 16px;
      display: flex;
      flex-direction: column;
      gap: 14px;
      position: relative;
      overflow: hidden;
    }

    .wave-bars {
      display: flex;
      gap: 6px;
      align-items: flex-end;
      height: 72px;
      margin-top: 4px;
    }

    .wave-bar {
      width: 6px;
      border-radius: 999px;
      background: linear-gradient(180deg, #ffb347, #ff4b8b);
      opacity: 0.85;
      animation: pulse 1.4s ease-in-out infinite;
    }

    .wave-bar:nth-child(2) { animation-delay: 0.12s; height: 40%; }
    .wave-bar:nth-child(3) { animation-delay: 0.24s; height: 80%; }
    .wave-bar:nth-child(4) { animation-delay: 0.36s; height: 55%; }
    .wave-bar:nth-child(5) { animation-delay: 0.48s; height: 90%; }
    .wave-bar:nth-child(6) { animation-delay: 0.60s; height: 35%; }
    .wave-bar:nth-child(7) { animation-delay: 0.72s; height: 70%; }

    @keyframes pulse {
      0%, 100% { transform: scaleY(0.7); }
      50% { transform: scaleY(1.2); }
    }

    .track-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
    }

    .track-title {
      font-weight: 600;
    }

    .track-tag {
      font-size: 10px;
      text-transform: uppercase;
      letter-spacing: 0.16em;
      color: var(--muted);
    }

    .track-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 11px;
      color: var(--muted);
      margin-top: 6px;
    }

    .track-cta-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 12px;
      gap: 10px;
    }

    .price-pill {
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(0,0,0,0.55);
      border: 1px solid rgba(255,255,255,0.18);
      font-size: 11px;
      color: #f5f7ff;
    }

    .btn-mini {
      padding: 8px 12px;
      border-radius: 999px;
      border: none;
      cursor: pointer;
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.16em;
      background: rgba(255,255,255,0.08);
      color: #f5f7ff;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-mini.primary {
      background: linear-gradient(135deg, #4b5bff, #00f5ff);
      color: #05060a;
    }

    .footer-note {
      margin-top: 10px;
      font-size: 10px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.16em;
    }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(12px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.modal-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  width: 90%;
  max-width: 420px;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,0.55);
}

.modal-title {
  font-size: 22px;
  margin-bottom: 20px;
}

.modal-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.modal-links a {
  color: var(--accent);
  font-size: 16px;
  text-decoration: none;
}

.modal-links a:hover {
  text-decoration: underline;
}

.modal-close {
  padding: 10px 18px;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  color: #05060a;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(12px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.modal-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  width: 90%;
  max-width: 480px;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,0.55);
}

.modal-title {
  font-size: 22px;
  margin-bottom: 20px;
}

.modal-input {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
}

.modal-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
}

.modal-option {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border-radius: 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
}

.hidden {
  display: none;
}