/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

/* Header */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

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

header h2 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    font-weight: 400;
}

.subtitle {
    font-size: 1rem;
    opacity: 0.9;
    margin-top: 10px;
}

/* Form Container */
.form-container {
    padding: 40px 30px;
}

.form-section {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid #f0f0f0;
}

.form-section:last-of-type {
    border-bottom: none;
}

.form-section h3 {
    color: #667eea;
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.optional {
    color: #999;
    font-size: 0.9rem;
    font-weight: 400;
}

/* Form Groups */
.form-group {
    margin-bottom: 20px;
}

.form-group.required label::after {
    content: " *";
    color: #e74c3c;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
    font-size: 0.95rem;
}

input[type="text"],
input[type="email"] {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

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

input[type="text"]::placeholder,
input[type="email"]::placeholder {
    color: #aaa;
}

.field-hint {
    display: block;
    margin-top: 5px;
    font-size: 0.85rem;
    color: #666;
    font-style: italic;
}

/* Checkbox Group */
.checkbox-group {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 2px solid #e0e0e0;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    font-weight: normal;
}

input[type="checkbox"] {
    margin-right: 12px;
    margin-top: 4px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-text {
    flex: 1;
    line-height: 1.6;
    color: #555;
}

.checkbox-text a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.checkbox-text a:hover {
    text-decoration: underline;
}

/* Eligibility Section */
.eligibility-section {
    background: #fff9e6;
    padding: 25px;
    border-radius: 8px;
    border: 2px solid #ffd700;
}

.eligibility-section h3 {
    color: #d4a017;
}

/* Form Actions */
.form-actions {
    margin-top: 30px;
    text-align: center;
}

.btn-submit {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 50px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

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

.btn-submit:disabled {
    background: #ccc;
    cursor: not-allowed;
    box-shadow: none;
}

/* Status Messages */
.status-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    display: none;
}

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

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

.status-message.loading {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
    display: block;
}

/* Footer */
footer {
    background: #f8f9fa;
    padding: 20px;
    text-align: center;
    color: #666;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    header h1 {
        font-size: 2rem;
    }

    header h2 {
        font-size: 1.2rem;
    }

    .form-container {
        padding: 30px 20px;
    }

    .btn-submit {
        width: 100%;
        padding: 15px 30px;
    }
}

/* Loading Spinner */
.spinner {
    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;
    margin-right: 10px;
}

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

/* File Upload Styles */
.file-upload-wrapper {
    position: relative;
}

input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 2;
}

.file-upload-display {
    display: flex;
    align-items: center;
    padding: 15px;
    border: 2px dashed #667eea;
    border-radius: 8px;
    background: #f8f9fa;
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-upload-display:hover {
    border-color: #764ba2;
    background: #f0f0ff;
}

.file-icon {
    font-size: 2rem;
    margin-right: 15px;
}

.file-name {
    flex: 1;
    color: #555;
    font-weight: 500;
}

.file-size {
    color: #999;
    font-size: 0.9rem;
    margin-left: 10px;
}

/* File Preview */
.file-preview {
    margin-top: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.file-preview h4 {
    margin-bottom: 10px;
    color: #667eea;
    font-size: 1rem;
}

.file-preview pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 15px;
    border-radius: 6px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    max-height: 400px;
    overflow-y: auto;
}

/* Info Box */
.info-box {
    background: #e3f2fd;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #2196f3;
}

.info-box h4 {
    color: #1976d2;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.info-box ul {
    margin: 0;
    padding-left: 20px;
}

.info-box li {
    color: #555;
    margin-bottom: 8px;
    line-height: 1.6;
}

/* Footer Links */
footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

footer a:hover {
    text-decoration: underline;
}