:root {
  --glass-bg: rgba(10, 16, 14, 0.55);
  --glass-strong: rgba(10, 16, 14, 0.75);
  --green: #21f0a2;
  --green-alt: #18e06f;
  --text: #eafaf1;
  --muted: #b7d7c9;
  --stroke: rgba(32, 255, 163, 0.35);
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}

body {
  margin: 0;
  font-family: 'Tajawal', sans-serif;
  background: url('/assets/bg.jpg') no-repeat center center fixed;
  background-size: cover;
  color: var(--text);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem;
}

/* Header/Nav */
header {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 1rem 0;
  box-shadow: var(--shadow);
}
header h1 {
  margin: 0;
  font-weight: 700;
  color: var(--green);
}
nav a {
  margin-left: 20px;
  color: var(--green);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}
nav a:hover {
  color: white;
}

/* Hero */
.hero {
  padding: 6rem 0;
  text-align: center;
  background: var(--glass-strong);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  margin: 2rem auto;
}
.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--green);
}
.hero p {
  font-size: 1.2rem;
  color: var(--muted);
}
.btn {
  display: inline-block;
  background: var(--green);
  color: #000;
  padding: 0.75rem 1.5rem;
  margin-top: 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 0 10px var(--green);
  transition: all 0.2s;
}
.btn:hover {
  transform: translateY(-2px);
  background: var(--green-alt);
}

/* Features */
.features {
  background: var(--glass-bg);
  backdrop-filter: blur(6px);
  padding: 3rem 0;
  border-radius: 12px;
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
  margin: 2rem auto;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}
.feature-card {
  background: var(--glass-strong);
  border: 1px solid var(--stroke);
  padding: 1rem;
  border-radius: 10px;
  text-align: center;
  font-weight: 500;
  box-shadow: 0 0 10px rgba(32, 255, 163, 0.15);
  transition: transform 0.2s;
}
.feature-card:hover {
  transform: scale(1.05);
  box-shadow: 0 0 14px var(--green);
}

/* Join Section */
.join {
  text-align: center;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  padding: 3rem 0;
  border-radius: 12px;
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
  margin: 2rem auto;
}
.join h3 {
  color: var(--green);
}
.join p {
  color: var(--muted);
  font-size: 1.1rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 0;
  background: rgba(0, 0, 0, 0.3);
  color: var(--muted);
  font-size: 0.95rem;
  backdrop-filter: blur(6px);
}
.fade-in-section {
  opacity: 0;
  transform: translateY(20vh);
  visibility: hidden;
  transition: opacity 0.6s ease-out, transform 1.2s ease-out;
}
.fade-in-section.is-visible {
  opacity: 1;
  transform: none;
  visibility: visible;
}