:root {
  color-scheme: dark;
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background: #050505;
  color: #f8f9fb;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, rgba(82, 67, 170, 0.2), transparent 50%),
    linear-gradient(180deg, #050505 0%, #120616 80%);
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 4vw;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(5, 5, 5, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

nav {
  display: flex;
  gap: 1rem;
}

nav a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

nav a:hover {
  color: #fff;
}

main {
  padding: 2rem 4vw 4rem;
}

.hero {
  padding: 2.5rem;
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 2rem;
}

.hero h1 {
  margin-top: 0.2rem;
  font-size: clamp(2rem, 4vw, 3rem);
}

.hero p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 760px;
  line-height: 1.6;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  color: #fff;
  border: 1px solid transparent;
}

.cta.primary {
  background: linear-gradient(120deg, #f15a29, #ff8a3d);
}

.cta.secondary {
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.85);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  padding: 1.8rem;
  border-radius: 1.25rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.card h3 {
  margin-top: 0;
}

.card p {
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: rgba(241, 90, 41, 0.15);
  color: #f7b089;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.player-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.player-frame {
  width: 100%;
  min-height: 420px;
  border: none;
  border-radius: 1rem;
  background: #000;
}

.tabs {
  display: flex;
  gap: 0.8rem;
  margin: 2rem 0 1rem;
  flex-wrap: wrap;
}

.tabs button {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.85);
  padding: 0.65rem 1rem;
  border-radius: 999px;
  cursor: pointer;
}

.tabs button.active {
  background: linear-gradient(120deg, #f15a29, #ff8a3d);
  border: none;
  color: #fff;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.list {
  display: grid;
  gap: 1rem;
}

.list-item {
  padding: 1.2rem;
  border-radius: 1rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.list-item h4 {
  margin: 0 0 0.4rem;
}

.muted {
  color: rgba(255, 255, 255, 0.6);
}

form {
  display: grid;
  gap: 0.6rem;
  margin-top: 1rem;
}

label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

input,
textarea,
select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
}

.status {
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.checklist {
  list-style: none;
  padding-left: 1rem;
}

.checklist li {
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1.2rem;
}

.checklist li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: #f15a29;
}

footer {
  padding: 2rem 4vw;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  nav {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  .hero {
    padding: 1.5rem;
  }
  .card {
    padding: 1.25rem;
  }
  header {
    flex-direction: column;
    gap: 0.8rem;
  }
}