body {
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial;
  margin: 0;
  padding: 20px;
  display: flex;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a, #0b1220);
  color: #e6eef8;
  min-height: 100vh;
}
.container {
  width: 100%;
  max-width: 980px;
  background: rgba(255, 255, 255, 0.03);
  padding: 20px;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.7);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
h1 {
  text-align: center;
  margin: 0 0 14px;
  font-size: 1.5rem;
}
.controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: end;
}
.field {
  display: flex;
  flex-direction: column;
  font-size: 0.95rem;
}
input[type="number"] {
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
  color: inherit;
  width: 120px;
}
.buttons {
  display: flex;
  gap: 10px;
  margin-left: auto;
}
button {
  background: linear-gradient(180deg, #ffb86b, #ff8c00);
  border: none;
  padding: 8px 14px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  color: #0b0b0b;
}
.matrices {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.matrix-card {
  background: rgba(255, 255, 255, 0.02);
  padding: 12px;
  border-radius: 10px;
}
.matrix-title {
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
th,
td {
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 6px;
  text-align: center;
}
th {
  background: rgba(255, 255, 255, 0.03);
  font-weight: 700;
}
input.matrix-input {
  width: 56px;
  padding: 4px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: transparent;
  color: inherit;
}
#output {
  margin-top: 16px;
  text-align: center;
  font-size: 1.05rem;
  font-weight: 700;
  min-height: 30px;
}
#mediaOutput {
  margin-top: 10px;
  display: flex;
  justify-content: center;
}
img,
video {
  max-width: 360px;
  width: 100%;
  border-radius: 12px;
  display: block;
}
@media (max-width: 760px) {
  .matrices {
    grid-template-columns: 1fr;
  }
  .controls {
    flex-direction: column;
    align-items: stretch;
  }
  .buttons {
    margin-left: 0;
  }
  input[type="number"] {
    width: 100%;
  }
}