:root {
  --primary-color: #E53935;
  --primary-dark: #C62828;
  --primary-light: #FFEBEE;
  --accent-color: #FFA000;
  --text-color: #2D3748;
  --text-muted: #718096;
  --bg-color: #F7FAFC;
  --card-bg: #FFFFFF;
  --border-color: #E2E8F0;
  --radius: 12px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  padding-bottom: 60px;
}

header {
  background-color: var(--primary-color);
  color: white;
  padding: 24px 20px;
  box-shadow: var(--shadow);
}

.header-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 24px;
  font-weight: bold;
  text-decoration: none;
  color: white;
}

.logo span {
  background: white;
  color: var(--primary-color);
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 800;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  margin-left: 16px;
  padding: 6px 12px;
  border-radius: 6px;
  transition: background 0.2s;
}

nav a:hover, nav a.active {
  background: rgba(255, 255, 255, 0.2);
}

.container {
  max-width: 900px;
  margin: 30px auto;
  padding: 0 20px;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
  border: 1px solid var(--border-color);
}

h1 {
  font-size: 28px;
  color: var(--primary-dark);
  margin-bottom: 12px;
}

h2 {
  font-size: 20px;
  color: var(--primary-color);
  margin-top: 24px;
  margin-bottom: 12px;
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: 6px;
}

h3 {
  font-size: 16px;
  margin-top: 16px;
  margin-bottom: 8px;
  color: var(--text-color);
}

p {
  margin-bottom: 14px;
  font-size: 15px;
  color: #4A5568;
}

ul, ol {
  margin-left: 20px;
  margin-bottom: 16px;
  color: #4A5568;
}

li {
  margin-bottom: 6px;
}

.app-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.badge-client {
  background-color: #E3F2FD;
  color: #1565C0;
}

.badge-driver {
  background-color: #FFF3E0;
  color: #E65100;
}

.badge-partner {
  background-color: #E8F5E9;
  color: #2E7D32;
}

.app-selector {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.app-tab {
  flex: 1;
  min-width: 140px;
  text-align: center;
  padding: 12px 16px;
  background: #EDF2F7;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-color);
  font-weight: 600;
  border: 2px solid transparent;
  transition: all 0.2s ease;
}

.app-tab:hover {
  background: #E2E8F0;
}

.app-tab.active {
  background: var(--primary-light);
  border-color: var(--primary-color);
  color: var(--primary-dark);
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 14px;
}

input[type="text"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 15px;
  transition: border-color 0.2s;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.1);
}

.btn {
  display: inline-block;
  background-color: var(--primary-color);
  color: white;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s;
  text-align: center;
}

.btn:hover {
  background-color: var(--primary-dark);
}

.btn-danger {
  background-color: #D32F2F;
}

.btn-danger:hover {
  background-color: #B71C1C;
}

.alert {
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  line-height: 1.5;
}

.alert-warning {
  background-color: #FFF8E1;
  border-left: 4px solid #FFA000;
  color: #8C6D00;
}

.alert-info {
  background-color: #E3F2FD;
  border-left: 4px solid #1E88E5;
  color: #0D47A1;
}

footer {
  text-align: center;
  margin-top: 40px;
  color: var(--text-muted);
  font-size: 14px;
}

footer a {
  color: var(--primary-color);
  text-decoration: none;
}