:root {
  --hillel-mint: #00d085;
  --hillel-mint-dim: rgba(0, 208, 133, 0.35);
  --bg-dark: #0a0e0c;
  --text: #f4f7f5;
  --text-muted: rgba(244, 247, 245, 0.72);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font: "Manrope", system-ui, sans-serif;
}

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

html {
  font-size: 112.5%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg-dark);
  color: var(--text);
}

.course-hub {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: clamp(1.5rem, 4vw, 2.5rem) clamp(1rem, 3vw, 1.5rem) clamp(2.5rem, 6vw, 4rem);
  overflow-x: hidden;
}

.course-hub__video {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.02);
  z-index: 0;
}

.course-hub__scrim {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
      125deg,
      rgba(6, 12, 10, 0.9) 0%,
      rgba(6, 14, 11, 0.58) 45%,
      rgba(4, 18, 12, 0.82) 100%
    ),
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(0, 208, 133, 0.12), transparent 55%);
  pointer-events: none;
}

.course-hub__glow {
  position: fixed;
  inset: -20%;
  z-index: 1;
  background: radial-gradient(circle at 50% 100%, var(--hillel-mint-dim) 0%, transparent 42%);
  opacity: 0.45;
  pointer-events: none;
  animation: glowPulse 8s var(--ease-out) infinite alternate;
}

@keyframes glowPulse {
  from {
    transform: scale(1) translateY(0);
    opacity: 0.35;
  }
  to {
    transform: scale(1.06) translateY(-2%);
    opacity: 0.52;
  }
}

.course-hub__inner {
  position: relative;
  z-index: 2;
  width: min(92vw, 720px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.course-hub__logo {
  width: min(72vw, 280px);
  height: auto;
  filter: drop-shadow(0 4px 24px rgba(0, 0, 0, 0.35));
}

.course-hub__title {
  margin: 0;
  font-size: clamp(1.65rem, 4.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-align: center;
  text-wrap: balance;
  max-width: 22ch;
}

.course-hub__subtitle {
  margin: -0.25rem 0 0;
  font-size: clamp(1rem, 2vw, 1.15rem);
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
}

.plan-list {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
}

.plan-list__item {
  margin: 0;
  padding: 0;
  border-radius: 12px;
  overflow: hidden;
}

.plan-list__link {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.25rem;
  align-items: center;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(0, 208, 133, 0.18);
  border-radius: 12px;
  backdrop-filter: blur(10px);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.35s var(--ease-out), background 0.35s var(--ease-out),
    transform 0.2s var(--ease-out);
}

.plan-list__link:hover {
  border-color: rgba(0, 208, 133, 0.45);
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-1px);
}

.plan-list__link:active {
  transform: translateY(0);
}

.plan-list__num {
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--hillel-mint);
  line-height: 1;
}

.plan-list__text {
  font-size: clamp(0.95rem, 1.9vw, 1.2rem);
  line-height: 1.45;
  font-weight: 600;
}