* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  min-height: 100vh;
  background: linear-gradient(120deg, #020617, #063b3b);
  color: #e5e7eb;
}

/* ================= Loader ================= */
#loader {
  position: fixed;
  inset: 0;
  background: #020617;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

#loader img {
  width: 160px;
  animation: pulse 1.4s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: .6 }
  50% { transform: scale(1.1); opacity: 1 }
  100% { transform: scale(1); opacity: .6 }
}

.hidden {
  display: none;
}

/* ================= Header ================= */
header {
  text-align: center;
  padding: 60px 20px 40px;
}

.logo {
  width: 140px;
  margin-bottom: 20px;
  animation: logoPop 1s ease forwards;
}

@keyframes logoPop {
  from { transform: scale(.8); opacity: 0 }
  to { transform: scale(1); opacity: 1 }
}

header h1 {
  font-size: 3rem;
  margin-bottom: 10px;
}

header p {
  opacity: .85;
}

/* ================= Cards ================= */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
  padding: 40px;
}

.card {
  background: rgba(255,255,255,.05);
  border-radius: 20px;
  padding: 25px;
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0,0,0,.3);
}

.card h2 {
  margin-bottom: 15px;
}

.card code {
  display: block;
  margin-top: 10px;
  background: rgba(0,0,0,.4);
  padding: 10px;
  border-radius: 10px;
}

/* ================= Animations ================= */
.float {
  animation: floatIn .9s ease forwards;
  opacity: 0;
}

.delay1 { animation-delay: .2s }
.delay2 { animation-delay: .4s }

@keyframes floatIn {
  from { transform: translateY(25px); opacity: 0 }
  to { transform: translateY(0); opacity: 1 }
}

.fade-in {
  animation: fadeUp 1s ease forwards;
}

@keyframes fadeUp {
  from { transform: translateY(10px); opacity: 0 }
  to { transform: translateY(0); opacity: 1 }
}

/* ================= Buttons ================= */
.btn {
  display: inline-block;
  margin-top: 15px;
  padding: 12px 20px;
  background: linear-gradient(135deg, #22d3ee, #3b82f6);
  color: black;
  border-radius: 30px;
  text-decoration: none;
  font-weight: bold;
  transition: transform .2s;
}

.btn:hover {
  transform: scale(1.05);
}

/* ================= Staff ================= */
.staff {
  text-align: center;
  padding: 40px;
}

/* ================= Footer ================= */
footer {
  text-align: center;
  padding: 20px;
  opacity: .6;
}