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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)),
                url('https://www.ucinmedica.com/wp-content/uploads/2020/08/consultorio-medico.jpg') center/cover no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0;
}

.register-container {
    background: rgba(255, 255, 255, 0.411) ;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(40px);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 900px;
    box-shadow: 0 25px 45px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    max-height: 90vh;
    overflow-y: auto;
}

.register-container::-webkit-scrollbar {
    width: 6px;
}

.register-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.register-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.register-container::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

.register-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    border-radius: 20px;
}

.header-section {
    text-align: center;
    margin-bottom: 40px;
}

.welcome-title {
    color: #2c3e50;
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 8px;
}

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

.form-section {
    background: rgba(255, 255, 255, 0.1);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.section-title {
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-icon {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #509887, #4CAF50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
}

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

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

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

.form-group label {
    display: block;
    color: #2c3e50;
    font-size: 14px;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.3);
    color: #2c3e50;
    font-size: 14px;
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
    font-weight: 500;
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(44, 62, 80, 0.6);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #509887;
    background: rgba(255, 255, 255, 0.4);
    box-shadow: 0 0 0 4px rgba(80, 152, 135, 0.15);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
}

.button-group {
    display: flex;
    gap: 15px;
    margin-top: 40px;
}

.register-btn {
    flex: 1;
    padding: 16px 24px;
    background: linear-gradient(135deg, #509887, #356666);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(80, 152, 135, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.register-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(80, 152, 135, 0.4);
}

.back-btn {
    padding: 16px 24px;
    background: rgba(255, 255, 255, 0.2);
    color: #2c3e50;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.login-link {
    text-align: center;
    font-weight:500 ;
    margin-top: 20px;
    font-size: 14px;
    color: #2f8d77;
}

.login-link a {
    color: #0c362c;
    font-weight: bold;
    text-decoration: none;
    font-weight: 600;
}

.login-link a:hover {
    text-decoration: underline;
}

.error-message {
    color: #e74c3c;
    font-size: 12px;
    margin-top: 5px;
    display: none;
}

.form-group.error input,
.form-group.error select {
    border-color: #e74c3c;
    box-shadow: 0 0 0 4px rgba(231, 76, 60, 0.15);
}

.form-group.error .error-message {
    display: block;
}

/* Responsive */
@media (max-width: 768px) {
    .form-sections {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .register-container {
        padding: 30px 20px;
        margin: 10px;
    }
    
    .welcome-title {
        font-size: 24px;
    }
    
    .button-group {
        flex-direction: column;
    }
}

/* Animaciones */
.register-container {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-section {
    animation: slideIn 0.6s ease-out forwards;
    opacity: 0;
    transform: translateY(20px);
}

.form-section:nth-child(1) { animation-delay: 0.2s; }
.form-section:nth-child(2) { animation-delay: 0.4s; }

@keyframes slideIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}