:root {
  --sgvd-bg-deep: #050506;
  --sgvd-bg-elev: #0e0e11;
  --sgvd-fg-main: #f2f2f2;
  --sgvd-fg-soft: #c8c8cf;
  --sgvd-fg-muted: #9797a1;
  --sgvd-red: #d7262e;
  --sgvd-red-soft: #ff4f55;
  --sgvd-border: rgba(255, 255, 255, 0.14);
  --sgvd-noise-overlay: rgba(5, 5, 8, 0.78);
}

.sgvd-shell {
  color: var(--sgvd-fg-main);
  background-color: var(--sgvd-bg-deep);
  text-rendering: optimizeLegibility;
}

.sgvd-shell::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 16% 18%, rgba(215, 38, 46, 0.14), transparent 46%),
    radial-gradient(circle at 84% 76%, rgba(255, 79, 85, 0.1), transparent 42%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.66), rgba(0, 0, 0, 0.84));
}

.sgvd-panel {
  background: rgba(9, 9, 12, 0.76);
  border: 1px solid var(--sgvd-border);
  box-shadow: 0 12px 42px rgba(0, 0, 0, 0.48);
  backdrop-filter: blur(1px);
}

.sgvd-title {
  color: #f8f8f8;
  letter-spacing: 1.6px;
  text-shadow:
    0 0 2px rgba(255, 255, 255, 0.15),
    0 0 18px rgba(215, 38, 46, 0.35);
}

.sgvd-subtitle {
  color: var(--sgvd-fg-soft);
}

.sgvd-nav {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  justify-content: center;
}

.sgvd-nav a,
.sgvd-btn {
  text-decoration: none;
  color: var(--sgvd-fg-main);
  border: 1px solid rgba(215, 38, 46, 0.64);
  background: linear-gradient(180deg, rgba(215, 38, 46, 0.24), rgba(215, 38, 46, 0.09));
  padding: 0.66rem 1.18rem;
  border-radius: 7px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.sgvd-nav a:hover,
.sgvd-btn:hover {
  color: #fff;
  border-color: var(--sgvd-red-soft);
  box-shadow:
    0 0 0 1px rgba(255, 79, 85, 0.2),
    0 10px 24px rgba(0, 0, 0, 0.4),
    0 0 20px rgba(215, 38, 46, 0.28);
  transform: translateY(-1px);
}

.sgvd-link {
  color: #f0f0f4;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 79, 85, 0.46);
  transition: color 0.16s ease, border-color 0.16s ease, text-shadow 0.16s ease;
}

.sgvd-link:hover {
  color: #fff;
  border-color: var(--sgvd-red-soft);
  text-shadow: 0 0 10px rgba(215, 38, 46, 0.36);
}

.sgvd-focus-ring:focus-visible,
.sgvd-nav a:focus-visible,
.sgvd-btn:focus-visible,
.sgvd-link:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

@media (max-width: 640px) {
  .sgvd-nav a,
  .sgvd-btn {
    width: 100%;
    max-width: 330px;
    text-align: center;
  }
}

.sgvd-track-page {
  --track-accent: var(--sgvd-red-soft);
  margin: 0;
  min-height: 100vh;
  padding: 44px 20px 56px;
  display: flex;
  justify-content: center;
  font-family: "Courier New", Courier, monospace;
  line-height: 1.6;
}

.sgvd-track-wrap {
  width: 100%;
  max-width: 820px;
  text-align: center;
}

.sgvd-track-panel {
  padding: 1.5rem 1.3rem;
  border-radius: 12px;
}

.sgvd-track-title {
  margin: 0;
  font-size: clamp(2rem, 5vw, 2.65rem);
  letter-spacing: 1.8px;
  color: var(--track-accent);
  text-shadow: 0 0 8px color-mix(in srgb, var(--track-accent), transparent 35%);
}

.sgvd-track-subtitle {
  margin: 0.65rem 0 0;
  color: color-mix(in srgb, var(--track-accent), white 38%);
  font-size: clamp(1rem, 2.5vw, 1.12rem);
}

.sgvd-track-lead {
  margin: 1.4rem auto 0;
  color: var(--sgvd-fg-soft);
  max-width: 72ch;
}

.sgvd-platform-grid {
  margin-top: 1.3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.72rem;
  justify-content: center;
}

.sgvd-platform-grid a {
  text-decoration: none;
  color: var(--sgvd-fg-main);
  border: 1px solid color-mix(in srgb, var(--track-accent), transparent 42%);
  background: rgba(5, 5, 8, 0.65);
  border-radius: 7px;
  padding: 0.44rem 0.86rem;
  font-size: 0.92rem;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.sgvd-platform-grid a:hover {
  border-color: var(--track-accent);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

.sgvd-track-cta {
  margin-top: 1.4rem;
}

.sgvd-track-qr {
  margin-top: 1.4rem;
}

.sgvd-track-qr img {
  width: min(190px, 62vw);
  height: auto;
}

.sgvd-track-analysis {
  margin-top: 2rem;
  text-align: left;
}

.sgvd-track-analysis h2 {
  margin-top: 0;
  text-align: center;
  color: var(--track-accent);
}

.sgvd-track-back {
  margin-top: 1.35rem;
}

.sgvd-track-back .sgvd-link {
  color: color-mix(in srgb, var(--track-accent), white 25%);
}

.sgvd-track-meta {
  margin-top: 1rem;
  font-size: 0.82rem;
  color: var(--sgvd-fg-muted);
}

.sgvd-track-teaser {
  margin-top: 1.2rem;
  border-top: 1px solid color-mix(in srgb, var(--track-accent), transparent 38%);
  border-bottom: 1px solid color-mix(in srgb, var(--track-accent), transparent 38%);
  padding: 0.9rem 0.25rem;
  color: var(--sgvd-fg-soft);
}