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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    max-width: 600px;
    width: 100%;
    padding: 40px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    font-size: 32px;
    font-weight: bold;
    color: #667eea;
    margin-bottom: 10px;
}

.logo-subtitle {
    color: #999;
    font-size: 14px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="number"],
textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s;
    font-family: inherit;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-hint {
    font-size: 12px;
    color: #999;
    margin-top: 5px;
}

button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

button:active {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.loading {
    display: none;
    text-align: center;
    color: #667eea;
    font-weight: 500;
}

.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 10px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.alert {
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
    display: none;
}

.alert-error {
    background-color: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.alert-success {
    background-color: #efe;
    color: #3c3;
    border: 1px solid #cfc;
}

.alert-info {
    background-color: #eef;
    color: #33c;
    border: 1px solid #ccf;
}

.alert.show {
    display: block;
}

.results {
    display: none;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid #e0e0e0;
}

.results.show {
    display: block;
}

.result-item {
    background: #f9f9f9;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 15px;
    border-left: 4px solid #667eea;
}

.result-item strong {
    color: #333;
}

.result-item-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 14px;
}

.tracking-link {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 15px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 3px;
    font-size: 13px;
    transition: background 0.3s;
}

.tracking-link:hover {
    background: #764ba2;
}

.no-results {
    text-align: center;
    color: #999;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 5px;
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    .logo {
        font-size: 24px;
    }

    .result-item-row {
        flex-direction: column;
    }
}