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

/* IMPORTANT: Full screen + no scroll */
html {
  height: 100%;
}

body {
  height: 100vh;             /* full screen height */
  width: 100%;
  overflow: hidden;           /* stop scrolling */
  background: radial-gradient(circle at top, #1f2937, #020617);
  color: #e5e7eb;
  display: flex;
  flex-direction: column;
}

/* FLEX HEADER */
header {
  padding: 1.4rem;   /* reduced to fit screen */
  text-align: center;
  background: linear-gradient(
    to right,
    rgba(15, 23, 42, 0.95),
    rgba(30, 64, 175, 0.8)
  );
}

.logo {
  font-size: 2.4rem;
  margin-bottom: 0.2rem;
}

header h1 {
  font-size: 1.8rem;
}

header p {
  color: #c7d2fe;
}

/* MAIN AREA */
main {
  flex: 1;
  padding: 1rem 5%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow: hidden;
}

/* INFO BOX */
.info-box {
  background: rgba(15, 23, 42, 0.85);
  border-radius: 1rem;
  padding: 1rem;
}

/* GRID SECTION */
.grid {
  flex: 1;   /* takes remaining height */
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  overflow: hidden;
}

/* FLEX CARDS */
.card {
  background: rgba(15, 23, 42, 0.9);
  border-radius: 1rem;
  padding: 1.2rem;
  cursor: pointer;

  display: flex;
  flex-direction: column;
  gap: 8px;

  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  background: #1e40af;
}

.card span {
  font-size: 12px;
  color: #60a5fa;
}

/* FOOTER */
footer {
  padding: 0.5rem;
  text-align: center;
  font-size: 12px;
  color: #9ca3af;
}