/* Global Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background: #0d1117; /* dark automotive look */
  color: #e6edf3;
  line-height: 1.6;
}

/* Topbar */
.topbar {
  background: linear-gradient(90deg, #0f4c75, #3282b8);
  color: #fff;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid #1b262c;
}

.topbar h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 30px auto;
  padding: 20px;
}

/* Card */
.card {
  background: linear-gradient(145deg, #1e2a38, #0d1117);
  border: 1px solid #2c3e50;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: 0px 4px 10px rgba(0,0,0,0.6);
  transition: transform 0.2s ease;
}
.card:hover {
  transform: translateY(-5px);
}

.card h3 {
  margin-bottom: 12px;
  font-weight: 600;
  color: #00bcd4;
}

/* Inputs */
.input {
  width: 100%;
  padding: 12px;
  border: 1px solid #3282b8;
  border-radius: 8px;
  background: #1b262c;
  color: #fff;
  margin-bottom: 16px;
  transition: 0.3s ease;
}
.input:focus {
  border-color: #00bcd4;
  outline: none;
}

/* Buttons */
.btn {
  display: inline-block;
  background: #3282b8;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease;
}
.btn:hover {
  background: #00bcd4;
}

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}
.table th, .table td {
  border: 1px solid #2c3e50;
  padding: 12px;
  text-align: left;
}
.table th {
  background: #0f4c75;
  color: #fff;
}
.table tr:nth-child(even) {
  background: #1e2a38;
}

/* Upload box */
.upload-box {
  border: 2px dashed #3282b8;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  background: #1b262c;
  color: #aaa;
}