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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #000000 0%, #272727 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 100%;
}

header {
    background: linear-gradient(135deg, #000000 0%, #272727 100%);
    color: #e0b400;
    padding: 40px 30px;
    text-align: center;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    font-weight: 700;
}

header h2 {
    font-size: 1.3em;
    font-weight: 400;
    opacity: 0.95;
}

main {
    padding: 40px 30px;
}

.info-box {
    background: #f8f9ff;
    border-left: 4px solid #e0b400;
    padding: 15px 20px;
    margin-bottom: 30px;
    border-radius: 5px;
}

.info-box p {
    color: #4a5568;
    line-height: 1.6;
}

.form-group {
    margin-bottom: 25px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #2d3748;
    font-weight: 600;
    font-size: 0.95em;
}

input[type="text"],
input[type="tel"] {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1em;
    transition: border-color 0.3s, box-shadow 0.3s;
    font-family: inherit;
}

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

.help-text {
    display: block;
    margin-top: 6px;
    color: #718096;
    font-size: 0.85em;
}

button[type="submit"] {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #e0b400 0%, #b38f00 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
}

button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(224, 180, 0, 0.3);
}

button[type="submit"]:active {
    transform: translateY(0);
}

button[type="submit"]:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.message {
    margin-top: 25px;
    padding: 15px 20px;
    border-radius: 8px;
    font-weight: 500;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message.warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

footer {
    background: #f7fafc;
    padding: 20px;
    text-align: center;
    color: #718096;
    font-size: 0.9em;
    border-top: 1px solid #e2e8f0;
}

@media (max-width: 600px) {
    header h1 {
        font-size: 2em;
    }
    
    header h2 {
        font-size: 1.1em;
    }
    
    main {
        padding: 30px 20px;
    }
}