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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: transparent;
    min-height: 100vh;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    max-width: 700px;
    width: 100%;
    padding: 40px;
    margin: 0 auto;
}

h1 {
    color: #333;
    margin-bottom: 10px;
    font-size: 28px;
}

.subtitle {
    color: #666;
    margin-bottom: 30px;
    font-size: 14px;
}

.section-title {
    color: #667eea;
    font-size: 18px;
    font-weight: 600;
    margin: 25px 0 15px 0;
    padding-bottom: 8px;
    border-bottom: 2px solid #e0e0e0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
}

label .required {
    color: #e74c3c;
}

label .optional {
    color: #999;
    font-weight: 400;
    font-size: 12px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="file"],
select,
textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
    font-family: inherit;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #667eea;
}

textarea {
    resize: vertical;
    min-height: 120px;
}

input[type="file"] {
    padding: 10px;
    cursor: pointer;
}

.btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 14px 30px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 10px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

.btn:active {
    transform: translateY(0);
}

.message {
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.6;
}

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

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

.file-info {
    font-size: 12px;
    color: #666;
    margin-top: 5px;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 25px;
    }
}