/* Reset e configurações básicas */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* Container principal */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    color: #2c3e50;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo::before {
    content: "🚚";
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #3498db;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 0;
    color: white;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Card de rastreamento */
.tracking-card {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    margin: 0 auto;
    transform: translateY(-50px);
}

.tracking-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-group input:focus {
    outline: none;
    border-color: #3498db;
    background: white;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Botões */
.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(45deg, #3498db, #2980b9);
    color: white;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.4);
}

.btn-dark {
    background: linear-gradient(45deg, #2c3e50, #34495e);
    color: white;
    box-shadow: 0 4px 15px rgba(44, 62, 80, 0.3);
}

.btn-dark:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44, 62, 80, 0.4);
}

.btn-success {
    background: linear-gradient(45deg, #27ae60, #2ecc71);
    color: white;
}

.btn-warning {
    background: linear-gradient(45deg, #f39c12, #e67e22);
    color: white;
}

.btn-danger {
    background: linear-gradient(45deg, #e74c3c, #c0392b);
    color: white;
}

/* Resultado do rastreamento */
.tracking-result {
    margin-top: 2rem;
    padding: 2rem;
    border-radius: 15px;
    background: #f8f9fa;
    border-left: 5px solid #3498db;
}

.tracking-result.success {
    background: #d4edda;
    border-left-color: #28a745;
}

.tracking-result.error {
    background: #f8d7da;
    border-left-color: #dc3545;
}

.status-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    color: white;
    font-weight: 600;
    margin: 0.5rem 0;
}

/* Features Section */
.features {
    padding: 4rem 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    background: #f8f9fa;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

/* Responsividade */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .tracking-card {
        margin: 0 1rem;
        padding: 2rem;
        transform: translateY(-30px);
    }
    
    .nav-links {
        display: none;
    }
    
    .header-content {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .tracking-card {
        padding: 1.5rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
    }
}

/* Animações */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Loading spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Tabelas responsivas */
.table-responsive {
    overflow-x: auto;
    margin: 1rem 0;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e1e8ed;
}

.table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
}

.table tr:hover {
    background: #f8f9fa;
}

/* Formulários do admin */
.admin-form {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

select {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    font-size: 1rem;
    background: #f8f9fa;
    transition: all 0.3s ease;
}

select:focus {
    outline: none;
    border-color: #3498db;
    background: white;
}

/* Alertas */
.alert {
    padding: 1rem;
    border-radius: 10px;
    margin: 1rem 0;
    border-left: 4px solid;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border-left-color: #28a745;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border-left-color: #dc3545;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border-left-color: #17a2b8;
}