:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --light-color: #f8f9fa;
    --dark-color: #2d3748;
    --success-color: #48bb78;
    --error-color: #e53e3e;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Tajawal', sans-serif;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--dark-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.register-container {
    width: 100%;
    max-width: 900px;
    margin: 20px auto;
}

.register-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: var(--transition);
}

.register-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.register-header {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.register-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,128L48,117.3C96,107,192,85,288,112C384,139,480,213,576,218.7C672,224,768,160,864,138.7C960,117,1056,139,1152,138.7C1248,139,1344,117,1392,106.7L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: center;
}

.register-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 800;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

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

.registration-form {
    padding: 40px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 15px;
    position: relative;
}

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

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 16px;
    transition: var(--transition);
    background: #f8fafc;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    background: white;
    transform: translateY(-2px);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.file-upload {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.file-upload-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 25px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    justify-content: center;
}

.file-upload-label:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

#file-name {
    font-size: 14px;
    color: #718096;
    text-align: center;
}

.submit-btn {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 18px 35px;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    font-size: 18px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

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

.login-link {
    text-align: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.login-link p {
    color: #718096;
}

.login-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.login-link a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.message {
    padding: 15px 20px;
    border-radius: 12px;
    margin: 20px 40px;
    text-align: center;
    font-weight: 500;
    animation: slideIn 0.5s ease-out;
}

.message.error {
    background-color: #fed7d7;
    color: var(--error-color);
    border: 1px solid #feb2b2;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .register-container {
        padding: 10px;
    }
    
    .register-header {
        padding: 30px 20px;
    }
    
    .register-header h1 {
        font-size: 2rem;
    }
    
    .registration-form {
        padding: 25px 20px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .submit-btn {
        padding: 15px 25px;
        font-size: 16px;
    }
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-group {
    animation: fadeIn 0.5s ease-out;
}