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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
}

.container-reg {
    width: 80%;
    margin: 50px auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.header {
    background: #667eea;
    color: white;
    padding: 30px;
    text-align: center;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 10px;
}

.header p {
    opacity: 0.9;
    font-size: 1.1rem;
}

.form-container-reg {
    padding: 40px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

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

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #667eea;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2c5aa0;
    background: white;
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.date-group {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
}

.file-input-wrapper {
    position: relative;
    display: block;
    width: 100%;
    cursor: pointer;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 3;
    top: 0;
    left: 0;
}

.file-input-button {
    display: inline-block;
    padding: 12px 20px;
    background: #f8f9fa;
    border: 2px dashed #667eea;
    border-radius: 8px;
    color: #667eea;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s ease;
    width: 100%;
    position: relative;
    z-index: 1;
}

.file-input-button:hover {
    background: #e3f2fd;
    border-color: #667eea;
}

.file-input-button i {
    margin-right: 8px;
}

.file-selected {
    background: #e8f5e8;
    border-color: #28a745;
    color: #28a745;
}

.file-error {
    background: #f8d7da;
    border-color: #667eea;
    color: #721c24;
}

.submit-container-reg {
    text-align: center;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid #f1f3f4;
}

.submit-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(44, 90, 160, 0.4);
}

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

@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

    .header h1 {
        font-size: 2rem;
    }

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

    .date-group {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

.required {
    color: #e74c3c;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: white;
    border-radius: 20px;
    padding: 40px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.7);
    opacity: 0;
    transition: all 0.3s ease;
}

.modal-overlay.show .modal-content {
    transform: scale(1);
    opacity: 1;
}

.modal-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.modal-icon.success {
    color: #28a745;
}

.modal-icon.error {
    color: #667eea;
}

.modal-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.modal-message {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.5;
}

.modal-button {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-button:hover {
    background: #c82333;
    transform: translateY(-2px);
}

.modal-button.secondary {
    background: #6c757d;
    margin-left: 10px;
}

.modal-button.secondary:hover {
    background: #5a6268;
}