/* ================= PAGE BACKGROUND ================= */
body {
  background:
    radial-gradient(1200px at 10% -10%, #1e293b, transparent),
    radial-gradient(1000px at 90% 10%, #020617, transparent),
    linear-gradient(180deg, #020617, #020b2a);
  color: #ffffff;
}

/* ================= NAVBAR ================= */
.course-navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 36px;
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.course-navbar h2 {
  color: #fbbf24;
  font-weight: 800;
}

.course-navbar a {
  color: #cbd5f5;
  font-weight: 500;
}

/* ================= CONTAINER ================= */
.course-container {
  max-width: 1250px;
  margin: 60px auto;
  padding: 0 28px;
}

.course-container h1 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 10px;
}

.course-container p {
  font-size: 16px;
  color: #cbd5f5;
}

/* ================= GRID ================= */
.course-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 36px;
}

/* ================= COURSE CARD ================= */
.course-card {
  background: linear-gradient(
    160deg,
    rgba(255,255,255,0.14),
    rgba(255,255,255,0.05)
  );
  backdrop-filter: blur(16px);
  border-radius: 22px;
  padding: 30px;
  border: 1px solid rgba(255,255,255,0.22);
  box-shadow:
    0 30px 60px rgba(0,0,0,0.45),
    inset 0 1px 0 rgba(255,255,255,0.08);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}

.course-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    600px at top right,
    rgba(251,191,36,0.12),
    transparent
  );
  opacity: 0;
  transition: opacity 0.35s ease;
}

.course-card:hover::before {
  opacity: 1;
}

.course-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow:
    0 50px 90px rgba(0,0,0,0.6),
    0 0 40px rgba(251,191,36,0.35);
}

/* ================= TITLE ================= */
.course-card h3 {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 12px;
  letter-spacing: 0.4px;
}

/* ================= DESCRIPTION ================= */
.course-card p {
  font-size: 15px;
  line-height: 1.7;
  color: #e5e7eb;
  margin-bottom: 18px;
}

/* ================= META INFO ================= */
.course-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 16px;
}

.course-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(255,255,255,0.15);
  color: #f8fafc;
  border: 1px solid rgba(255,255,255,0.25);
}

/* ================= INSTRUCTOR ================= */
.instructor {
  font-size: 14px;
  color: #cbd5f5;
  margin-bottom: 22px;
}

/* ================= ENROLL BUTTON ================= */
.course-card button {
  width: 100%;
  padding: 12px 0;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.4px;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: #020617;
  transition: all 0.25s ease;
}

.course-card button:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(251,191,36,0.5);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 768px) {
  .course-container h1 {
    font-size: 34px;
  }

  .course-grid {
    grid-template-columns: 1fr;
  }
}
.buy-btn {
  position: relative;
  z-index: 100;
  cursor: pointer;
}
.course-card::before,
.course-card::after {
  pointer-events: none;
}
.course-card {
  position: relative;
  z-index: 1;
}
.course-card * {
  pointer-events: auto;
}