* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  }
  
  body {
    background: radial-gradient(circle at top, #0b1020, #05070f);
    color: #fff;
    min-height: 100vh;
    overflow-x: hidden;
  }
  
  /* ---------- Navbar ---------- */
  .navbar {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 40px;
    position: sticky;
    top: 0;
    z-index: 999;
    backdrop-filter: blur(14px);
    background: rgba(5, 7, 15, 0.55);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  
  .logo {
    font-weight: 800;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #35d3ff;
    box-shadow: 0 0 15px #35d3ff;
  }
  
  .nav-links {
    display: flex;
    gap: 22px;
  }
  
  .nav-links a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.78);
    font-weight: 600;
    font-size: 14px;
    transition: 0.25s;
  }
  
  .nav-links a:hover {
    color: #fff;
  }
  
  .nav-links a.active {
    color: #35d3ff;
  }
  
  .btn {
    text-decoration: none;
    padding: 12px 16px;
    border-radius: 14px;
    font-weight: 700;
    font-size: 14px;
    display: inline-block;
    transition: 0.25s;
    border: none;
    cursor: pointer;
  }
  
  .btn-primary {
    background: linear-gradient(90deg, #35d3ff, #9b5cff);
    color: #05070f;
  }
  
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 35px rgba(53, 211, 255, 0.25);
  }
  
  .btn-outline {
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    background: transparent;
  }
  
  .btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
  }
  
  /* ---------- Layout ---------- */
  .layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    min-height: calc(100vh - 70px);
  }
  
  /* ---------- Map ---------- */
  .map-area {
    position: relative;
    height: calc(100vh - 70px);
  }
  
  #map {
    height: 100%;
    width: 100%;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
  }
  
  /* ---------- Floating Controls ---------- */
  .controls {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 260px;
    padding: 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(14px);
    z-index: 999;
  }
  
  .controls h3 {
    font-size: 16px;
    margin-bottom: 12px;
  }
  
  .controls label {
    display: block;
    font-size: 13px;
    opacity: 0.85;
    margin: 10px 0 6px;
  }
  
  .controls select,
  .controls input {
    width: 100%;
    padding: 10px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(0, 0, 0, 0.25);
    color: #fff;
    outline: none;
  }
  
  .controls input::placeholder {
    color: rgba(255, 255, 255, 0.5);
  }
  
  .toggles {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  
  .toggles label {
    margin: 0;
    font-size: 13px;
  }
  
  /* ---------- Mini Stats ---------- */
  .mini-stats {
    position: absolute;
    bottom: 16px;
    left: 16px;
    right: 16px;
    display: flex;
    justify-content: space-between;
    padding: 12px 14px;
    border-radius: 18px;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(14px);
    z-index: 999;
    font-size: 13px;
    opacity: 0.9;
  }
  
  /* ---------- Side Panel ---------- */
  .side-panel {
    padding: 22px;
    background: rgba(255, 255, 255, 0.03);
  }
  
  .side-panel h2 {
    font-size: 20px;
    margin-bottom: 14px;
  }
  
  .sat-card {
    padding: 16px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    margin-bottom: 18px;
  }
  
  .hint {
    opacity: 0.75;
    font-size: 14px;
    line-height: 1.5;
  }
  
  /* Satellite details rows */
  .row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 14px;
  }
  
  .row:last-child {
    border-bottom: none;
  }
  
  .row span {
    opacity: 0.75;
  }
  
  .legend {
    padding: 16px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
  }
  
  .legend h3 {
    font-size: 16px;
    margin-bottom: 12px;
  }
  
  .legend-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    padding: 6px 0;
    opacity: 0.9;
  }
  
  .legend .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    box-shadow: none;
  }
  
  .legend .leo { background: #35d3ff; }
  .legend .meo { background: #9b5cff; }
  .legend .geo { background: #ffcc66; }
  
  .station {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    background: #00ff99;
  }
  
  /* ---------- Responsive ---------- */
  @media (max-width: 1000px) {
    .layout {
      grid-template-columns: 1fr;
    }
    .side-panel {
      display: none;
    }
    .controls {
      width: 230px;
    }
  }